Marketing Agency Companies Using Site Kit in the UK: 338 Active Firms (2026)
Marketing agencies running website analytics tooling plan campaigns, manage search and digital media, and measure performance for UK clients.
For marketing agencies, this analytics plug-in usually sits on the agency’s own website rather than inside the client delivery stack. It helps connect search visibility, content performance, visitor behaviour and campaign reporting in one operational view, so adoption tends to signal a digital-first new-business model and a team comfortable with measurable acquisition. The fit is clearest where agencies sell campaign planning, search, paid media, content and optimisation to SMEs and mid-market clients, but still manage their own site through a relatively lean marketing-operations setup. It is less a marker of enterprise IT spend than of practical analytics discipline.
Read more
Within UK marketing agencies, 338 active companies are running this system, putting it second in the analytics category at 11.2% of 3,016 sector websites. Adoption is skewed towards London, which accounts for 28.4%, followed by the South East at 16.6%, the North West at 11.5%, the South West at 8.6% and the West Midlands at 8.0%. Reported employment covers 121 firms, with a combined 1,363 employees, which makes this more of a small- to mid-sized agency picture than a network-agency one.
Campaign measurement sits under several regimes even though agencies do not need a single sector licence. The ICO is the usual reference point for GDPR and PECR, particularly where cookies, tracking tags, lead forms and email workflows identify users or prospects. Ofcom can matter where misuse of public electronic communications networks is alleged, while the CMA and trading standards cover unfair-trading rules. The ASA’s CAP Code applies to advertisers, agencies and media, so claims, targeting and evidence trails are not only client obligations. DMA membership adds a trade-body code for direct marketing rather than a statutory licence.
Adoption appears tied to agencies’ own publishing habits rather than procurement cycles. The stack tends to suit firms that want familiar website administration, search-led acquisition and straightforward client-facing reporting, especially where content teams and account managers work close together. Consent management, browser tracking limits and client scrutiny of attribution are likely to keep pressure on how these tools are configured. Some agencies will move towards broader marketing-operations suites as they add specialist roles, while many owner-managed firms may keep lighter site-level analytics because it is easier to maintain.
Adoption by company size
Adoption of Site Kit rises with company size across the trading UK marketing agency companies in this cohort. 0.4% of the 54,246 companies with under 10 employees run Site Kit (240 detected). 4.7% of the 1,903 companies with 10–50 employees run Site Kit (89 detected). 5.5% of the 146 companies with over 50 employees run Site Kit (8 detected). That is a 5.1% gap between the over 50 employees and under 10 employees bands.
338
Active firms
2026
11.2%
Of detected Analytics share
UK marketing agency
6
Median headcount
Filed accounts
650
Verified contacts
Across this cohort
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Key facts
About 2% of the trading cohort reports turnover above £5M (7 of 338 firms) — the rest sits below that revenue band.
5% of the cohort was incorporated since 2022 (20 firms), so a sizeable share is in its first few filing cycles.
Among 3,016 marketing agencies with a detectable analytics system, this analytics plugin appears on 11.2% (338), second by detected share behind the category’s largest system at 86.0% (2,593).
The stack skews heavily towards content-managed sites: 99.4% (336) also run a content management system, while 64.5% (218) also run an SEO plugin.
London accounts for 28.4% (96) of marketing agencies running this analytics plugin, followed by the South East at 16.6% (56) and the North West at 11.5% (39).
UK ad spend reached £42.6 billion in 2024, with online formats up 13.2% and £4 in every £5 of ad budgets spent online.
Campaign work sits across several regimes: the ICO regulates data protection and PECR for direct marketing, while Ofcom, the CMA, trading standards and the ASA also shape electronic communications, claims and media activity.
WordPress plugins market share among UK Marketing Agency
Share of the 3,016 UK Marketing Agency with a detectable system. As of June 2026.
What else do Site Kit-running Marketing Agency run?
Share of the 338 Site Kit-running UK companies where each technology was also detected. As of June 2026.
Where Site Kit Marketing Agency are, and how healthy they look
By region
By registered-office region; companies without a regional match count toward Rest of UK.
By financial health
From filed accounts; firms with fewer than two filings show as insufficient history.
6
Median headcount
£436K
Median UK turnover
2.1%
Above £5M turnover
20
Incorporated since 2022
650 verified decision-maker contacts
across these 338 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK Marketing Agency using Site Kit
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
Financial sub-scores
Computed from 5 filingsProvides performance marketing services for eCommerce brands, including paid search, paid social, SEO and programmatic advertising. Conducts growth strategy, data attribution, tracking and reporting,…
Serves funded and independent eCommerce and scale-ready consumer brands across the UK, US and Europe, typically with active paid media budgets and growth-focused marketing teams.
Financial Health
StrongStrong · Growing, Hiring · 21% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides digital marketing services including pay‑per‑click advertising, paid social media campaigns, search engine optimisation, and performance creative. Plans, manages and optimises online…
Sells to businesses seeking outsourced digital marketing, including e-commerce, telecoms, utilities and consumer brands. Targets marketing decision-makers that want PPC, paid social, SEO and creative…
Financial Health
HealthyHealthy · -5% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 2 filingsProvides advertising and marketing services including creative content development, media planning and buying, social media and influencer marketing, brand strategy, analytics, and consulting to help…
Serves brand-side marketing teams at consumer-facing companies, including large advertisers seeking social-led campaigns and full-funnel agency support across global markets.
Financial Health
StableStable · 9% CAGR over 1y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Provides B2B and B2C marketing and creative agency services, including brand strategy, messaging, market research, campaign development, content production, media planning and buying, digital…
Serves ambitious B2B and B2C brands, targeting marketing and leadership teams in sectors such as technology, healthcare/insurance, plumbing/building products and social justice organisations.
Financial Health
N/AN/A
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides media planning, media buying and digital marketing services, including advertising strategy, campaign management, audience targeting and performance analysis to help brands generate leads,…
Serves ambitious businesses and brands, alongside public sector bodies, charities and education clients, including car dealerships, health and beauty providers and retail brands.
Financial Health
HealthyHealthy · Hiring · 20% CAGR over 5y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides marketing consultancy and campaign management services including brand strategy, naming, SEO, PPC advertising, social media, content writing and account‑based marketing. Also delivers…
Sells to B2B organisations and in-house marketing leaders seeking an external agency, particularly companies looking to change or grow and requiring strategic, digital, creative and…
Financial Health
StableStable · Hiring · 4% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Provides marketing services including print management, direct mail and door‑drop campaigns, digital marketing (search, paid social and email), data analysis, and creative design. Develops integrated…
Serves B2B marketing buyers at big brands, start-ups and family-run businesses, especially in retail, ecommerce, travel and leisure, health, food and beverage, education, membership, charity, gaming…
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides digital marketing and lead generation services including management of Google, Meta, LinkedIn and TikTok advertising, SEO, copywriting and marketing automation. Also offers HubSpot…
Sells to businesses seeking outsourced lead generation, sales automation and digital marketing support, particularly firms wanting to scale revenue without adding in-house sales or marketing…
Financial Health
StrongStrong
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides digital marketing services including social media management, paid advertising, SEO, content marketing, website design and development, PR, and photography and video production. Develops…
Serves global brands and ambitious SMEs across the UK and internationally, including organisations in technology, property, finance, healthcare, hospitality, education, recruitment, professional…
Financial Health
StrongStrong · Growing, Hiring · 6% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides digital marketing and web development services, including website and UX design, mobile app development, lead generation campaigns, performance marketing, creative campaigns, and marketing…
Serves businesses and organisations seeking digital marketing support, with an explicit focus on caravan and motorhome sector clients.
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides digital marketing services including search engine optimisation (SEO), content marketing, paid media, social media and email campaigns. Also develops and maintains websites, particularly…
Serves businesses and consumer-facing brands, including ecommerce retailers and lead-generation companies, with buyers such as marketing teams and business owners seeking agency support for online…
Financial Health
StableStable · -10% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides enterprise and B2B search engine optimisation services, including technical SEO, on‑page optimisation, link building, content strategy, and analytics. Also offers outbound marketing such as…
Serves Series A to enterprise companies, ecommerce brands, local businesses and B2C firms, with emphasis on B2B tech, SaaS, cybersecurity, healthcare tech, CRM and retail teams.
Financial Health
WeakWeak · 0% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides web design and development, including WordPress and ecommerce websites, alongside digital marketing services such as PPC advertising, SEO, conversion rate optimisation, content creation,…
Serves B2B clients: businesses and brands, especially organisations in Sussex and West Sussex, with marketing teams or owners seeking external agency support for online growth.
Financial Health
StableStable · -23% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides search engine optimisation and digital marketing services for e‑commerce retailers. Uses a proprietary data platform to analyse consumer demand and optimise product content, technical SEO,…
Serves B2B enterprise and high-SKU retailers, targeting ecommerce, marketing, SEO, merchandising, trading, buying, brand, product copy, finance, engineering and C-suite teams.
Financial Health
StableStable · 0% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides B2B lead generation and demand generation services for technology vendors. Runs targeted content syndication, account‑based marketing and audience targeting campaigns across a network of…
Serves B2B technology vendors, marketing teams and agencies targeting technology decision-makers across IT, cybersecurity, AI, finance, HR, marketing, sales and electronics.
Financial Health
StableStable · -69% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides integrated marketing services including web design, digital marketing strategy, PPC and SEO, social media management, video production, podcast production and creative campaign development…
Targets businesses and brand owners seeking outsourced marketing support, from SMEs to established organisations across varied sectors, including engineering and consumer-facing brands, with…
Financial Health
HealthyHealthy · -4% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides digital agency services including website design and development, social media management, digital marketing campaigns, and creative content production, using data and AI tools to plan…
Serves brands and marketing teams in technology, hospitality, sports and betting, consumer goods, fintech and professional services, including larger organisations seeking external digital and…
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 4 filingsProvides digital marketing services including search engine optimisation (SEO), pay‑per‑click advertising management, Google Shopping and social media advertising. Also offers technical SEO,…
Serves businesses, especially eCommerce and Shopify retailers, consumer brands and marketing teams seeking agency support for search, paid media and email revenue growth.
Financial Health
WeakWeak · Hiring · 119% CAGR over 3y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides public relations and integrated marketing services for B2B technology and digital advertising companies. Develops communications strategies, media relations, content and campaigns across…
Serves B2B digital advertising, adtech and emerging technology companies seeking PR and integrated marketing support across the UK, EMEA, APAC and the US.
Financial Health
StableStable · -8% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides digital marketing and web development services including search engine optimisation, pay‑per‑click advertising, social media ads, website design and build, e‑commerce development, hosting,…
Serves ambitious businesses of varying sizes across sectors, including e-commerce operators and companies using platforms such as WordPress, Shopify, WooCommerce, Magento, Kentico and Craft.
Financial Health
WeakWeak · Hiring · 7% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 4 filingsProvides B2B marketing and communications services including brand positioning, messaging development, public relations, content marketing, campaign strategy, analyst and media relations, sales…
Targets growth-focused B2B innovators and market disruptors, especially technology, SaaS, cybersecurity, fintech and telecoms brands, with buyers including CEOs, CMOs and sales/marketing leaders.
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 3y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 2 filingsProvides B2B digital marketing services including SEO, PPC advertising, social media management, content creation, branding, and website design and development. Also offers outsourced digital…
Sells to B2B companies seeking outsourced digital marketing support, including marketing teams and business leaders needing PPC, SEO, content, social media, websites and e-commerce services.
Financial Health
HealthyHealthy · Hiring · 1002% CAGR over 1y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides digital marketing services including branding, content creation, creative design, website development, marketing research and analytics. Works with businesses to improve online presence,…
Serves businesses and marketing leaders across consumer, hospitality, retail, B2B, healthcare, elder care, legal, and distribution sectors seeking outsourced digital marketing support.
Financial Health
HealthyHealthy · -4% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 4 filingsProvides digital marketing services including SEO and content marketing, PPC and paid social advertising, email marketing, and organic social media management. Also offers branding, graphic design,…
Targets B2B and consumer-facing brands, including charities, hospitality networks, ecommerce retailers, manufacturers, healthcare businesses and local service companies.
Financial Health
HealthyHealthy · Hiring · 65% CAGR over 3y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 4 filingsProvides PR and digital marketing services for agriculture and horticulture businesses, including media planning and buying, press relations, branding, paid social and search campaigns, and…
Serves B2B companies and organisations in agriculture and horticulture, including agribusiness brands, trade bodies and food/farming enterprises targeting farmers, growers and agricultural…
Financial Health
StrongStrong · Hiring · 20% CAGR over 3y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 2 filingsProvides B2B digital marketing services including SEO, PPC advertising, social media management, content and branding production, website design and development, e‑commerce solutions, and ongoing…
Serves B2B companies, particularly marketing and sales teams needing outsourced digital support, lead generation, ecommerce, website and content programmes.
Financial Health
HealthyHealthy · 0% CAGR over 1y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides e‑commerce development and digital marketing services for B2B and B2C brands, including Shopify and BigCommerce store development, email marketing automation, paid media management, and…
Serves ambitious B2B and D2C brands, including 7-figure retailers and global brands, across the UK and UAE in retail, lifestyle, tools and professional services.
Financial Health
StableStable · Hiring · 11% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides branding, marketing, design and digital services for businesses. Activities include brand strategy and identity, graphic design, UX/UI and website development, digital marketing, PR, social…
Serves B2B and consumer-facing brands and organisations across retail, transport, education, property, leisure, manufacturing and technology, typically marketing leaders seeking agency support.
Financial Health
StableStable · 0% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 2 filingsProvides B2B technology marketing services including campaign strategy, digital marketing, brand development, partner enablement programmes, event planning, and demand generation. Creates marketing…
Serves B2B technology companies and channel organisations, including vendors, resellers, systems integrators, cybersecurity firms and software brands seeking agency support for partner and demand…
Financial Health
WeakWeak · -18% CAGR over 1y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides marketing agency services including digital marketing, social media management, website development, SEO, PR, pay‑per‑click advertising, video production, graphic design, event marketing,…
Serves businesses and marketing teams seeking external agency support to reach customers, build brand visibility and manage marketing activity across multiple channels.
Financial Health
StableStable · Hiring · 8% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 4 filingsProvides marketing and advertising services including marketing strategy development, research and planning, digital advertising campaign management, brand building, and media strategy for businesses…
Serves businesses and brands seeking marketing support, including organisations in beauty, sports, food and wellness, and corporate clients looking to reach customers through advertising and brand…
Financial Health
StableStable · 0% CAGR over 3y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides B2B marketing and creative agency services for technology companies, including brand strategy, digital marketing, social media campaigns, public relations, and creative design to support…
Serves B2B marketing and communications teams at global tech-powered brands, particularly enterprise SaaS, fintech, cybersecurity and deep tech companies focused on lead generation and growth.
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides digital marketing and advertising services for tourism, cultural and visitor attractions. Services include marketing strategy, campaign planning and execution, and marketing optimisation to…
Serves B2B visitor-economy organisations, including tourism attractions, cultural venues, heritage sites, conservation bodies, nature destinations and activity/farm parks, from smaller attractions to…
Financial Health
WeakWeak · Hiring · 5% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides marketing communications services including marketing strategy and campaign management, brand and graphic design, website development and optimisation, video production, copywriting, and…
Serves ambitious B2B businesses and some B2C organisations, particularly companies with product launches, lead generation needs, audience education programmes, brand refreshes or market engagement…
Financial Health
StableStable · Hiring · 5% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides public relations, communications and digital marketing services for brands, particularly in travel, hospitality, property and food and drink. Services include media relations, influencer and…
Serves B2B brand owners and marketing teams at luxury travel, hospitality, property, food and drink businesses, including hotels, restaurants, venues and lifestyle brands.
Financial Health
WeakWeak · Hiring · 11% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides media planning and media buying services for advertisers. Develops audience targeting strategies, allocates advertising budgets across channels, and measures campaign performance using data…
Serves B2B and consumer brands, especially growth-focused advertisers and marketing teams seeking media agency support with UK and global campaign reach.
Financial Health
HealthyHealthy · -91% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides marketing and consultancy services for leisure businesses such as gyms, health clubs and leisure centres. Services include website development, Google Ads management, social media, email…
Serves B2B leisure and hospitality operators, including gyms, leisure centres and trusts, health clubs, fitness centres, country clubs, golf clubs, spas, hotels, holiday parks and lodges, plus owners…
Financial Health
StrongStrong · Hiring · 41% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides direct marketing and multi-channel fundraising services for charities, universities and regulated gaming operators, developing campaigns to recruit supporters, engage alumni and generate…
Serves charities, cause-led organisations, university alumni teams and fundraising gaming or lottery programmes, from small nonprofits to larger organisations seeking to engage supporters, alumni or…
Financial Health
HealthyHealthy · -1% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides branding, graphic design and digital marketing services, including logo and brand identity design, marketing strategy, web design and development, social media content, SEO, digital…
Serves businesses, from startups to established companies, needing branding and digital marketing support. Targets marketing leaders and commercial teams, with evidence of work for professional…
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides media planning and buying services, media effectiveness analysis, and data analytics for fashion and luxury brands. Also offers retail and luxury market insight to support marketing strategy…
Serves B2B clients in the fashion, luxury and retail sectors, targeting brand and marketing teams seeking media planning, buying, effectiveness and insight support.
Financial Health
HealthyHealthy · Hiring · 22% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides marketing and design services including digital marketing, advertising campaigns, branding, web and app development, SEO, social media management, copywriting, public relations, and print…
Serves B2B organisations, charities and public/emergency services, with sector focus on building and construction, consumer electronics, medical and pharmaceutical, professional services, SaaS,…
Financial Health
StableStable · 0% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides digital marketing and branding services including content marketing, marketing strategy, website design, performance advertising, social media management, email marketing and public…
Serves mission-driven brands and growth-focused businesses, selling to founders and marketing teams seeking an external agency partner for brand, content, social, web, PR, email and performance…
Financial Health
StableStable · Hiring · 28% CAGR over 5y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides marketing and creative services including web design, graphic design, brand development, SEO, pay‑per‑click advertising management, social media management, copywriting and marketing…
Serves SMEs and larger organisations, including B2B companies and organisations in construction, engineering and rail, alongside businesses needing marketing, design, web, photography and film…
Financial Health
StableStable · Hiring · 19% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides marketing and communications services including public relations, crisis communications, branding, graphic design, website design, SEO, PPC advertising, social media management, video…
Serves purpose-driven organisations and brands, including public sector bodies, charities and businesses in education, energy, housing, health and social care, events, construction, estate agency and…
Financial Health
WeakWeak · -5% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides digital marketing services for health, wellness and lifestyle brands, including brand strategy, website design and development, search engine optimisation, paid search and paid social…
Serves B2B health, wellness and lifestyle brands, including supplements and nutrition, fitness, aesthetics and beauty, and food and drink businesses seeking brand, web and digital marketing support.
Financial Health
StableStable · 0% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides e‑commerce consulting and marketing services for brands selling on Amazon and TikTok Shop, including account management, advertising management, product page optimisation, SEO, and creative…
Serves B2B clients: emerging and established consumer brands, Amazon vendors and sellers, TikTok Shop merchants, and DTC ecommerce teams across the UK, Europe, US, Canada, UAE and Australia.
Financial Health
StableStable · Hiring · 44% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides public relations and marketing communications services for life science, technology and industrial companies, including marketing strategy, inbound marketing, scientific content creation,…
Serves B2B marketing and communications buyers at pharma, biotech, life science, technology and industrial companies, including diagnostics, materials science, food, water, construction, aviation,…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides public relations and digital communications services for fintech, regtech, payments and e‑commerce companies, including media relations, marketing campaigns, SEO, content production, social…
Serves B2B technology brands, from ambitious scale-ups to established market leaders, in fintech, regtech, paytech, ecommerce, cybersecurity, fraud prevention, iGaming and insurtech.
Financial Health
HealthyHealthy · Hiring · 9% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 5 filingsProvides marketing communications and public relations services focused on scientific, technology and industrial sectors. Develops content‑led campaigns, marketing strategy, inbound marketing, media…
Serves B2B science, technology and industrial companies worldwide, including life sciences, materials science, food and nutrition, water, personal care, construction, aviation, oil and gas, and…
Financial Health
StableStable · 0% CAGR over 4y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Financial sub-scores
Computed from 3 filingsProvides public relations, social media management, and digital marketing services. Develops multi‑channel campaigns, content, and communications strategies designed to increase brand awareness,…
Sells to businesses seeking PR, social media and digital marketing support, targeting brands that want to build awareness, influence customer behaviour and generate leads or conversions through…
Financial Health
StableStable · -3% CAGR over 2y
Location
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
Unlock all 338 leads
Showing 50 of 338 — +288 more with verified decision-maker contacts, live data, and CRM sync.
How Site Kit usage is detected
Company data
Detected companies are joined to UK Companies House records and XBRL accounts data. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Detection
Firmbase crawls the public website of actively-trading UK companies and fingerprints the technologies present: tracking scripts, embedded forms, chat widgets, CMS markers and similar signatures. A company is included in this list when one or more of the technology's signatures are found on its site; closely-related variants of the same product are grouped under one name. Detection covers what is visible on the public web — a company using the technology purely internally, with no website footprint, will not appear. Counts are therefore a conservative floor, not a ceiling. marketing agency companies are identified using Firmbase's semantic classification of company activity, built from filings, websites and registered SIC codes rather than SIC codes alone. The detected counts and share figures on this page are computed within that sector cohort, so "share" always means share of marketing agency companies with a detectable system — not of all UK companies.
Freshness
Websites are re-crawled on a rolling basis and the underlying company data is refreshed from Companies House continuously; filings appear within days of submission. The list and its statistics are regenerated when the detected cohort moves meaningfully. You can see the last-updated timestamp near the top of the page.
Site Kit is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
UK Marketing Agency by WordPress plugins
Other Marketing Agency technology
Related directories
Frequently asked questions
How many UK marketing agency companies use Site Kit?
What share of UK marketing agency companies run Site Kit?
How is Site Kit usage detected?
What size marketing agency companies use Site Kit in the UK?
What do Site Kit-running marketing agency companies also run?
Can I get contact details for these companies?
Search 338 UK companies by the WordPress plugins technology they run.
Find the right decision-makers, see verified company data, and export your list in seconds.

















































