Companies Using Google Ads in Cardiff: 128 Active Firms (2026)
Cardiff companies running paid search conversion tracking use search advertising to generate measurable web enquiries across the metropolitan area.
Adoption tends to sit with owner-managed marketing teams, ecommerce managers and sales-led directors who want a closed loop between keyword spend and web enquiries. Companies running this stack usually have enough budget discipline to test campaigns by service line, location or audience, but not always the in-house analytics capacity seen in national advertisers. The buying centre is often commercial rather than technical: marketing commissions the campaigns, sales or operations judges enquiry quality, and finance wants spend tied to bookings, quotes or orders.
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Cardiff has 128 companies running paid search conversion tracking, a compact adoption base rather than a broad local default. Together, firms in this cohort report 2,565 staff, giving the segment a visible employment footprint across service, trade, construction, healthcare and manufacturing categories. The typical adopter still looks small: the median headcount is 6 and median turnover is £433k. That mix matters because conversion tracking is not confined to large advertisers; it also appears among lean operators where one website form, booking flow or quote request can carry much of the acquisition case.
UK search advertising operates under a mixed regime of law and self-regulation, not a single sector licence. The ASA applies the advertising codes for paid-for and marketer-controlled online space, so claims, prices and landing-page promises need to match the ad that brought the visitor in. Conversion tracking adds a privacy layer: the ICO’s data-protection and PECR regime governs cookies, identifiers and consent, while the CMA and trading standards remain relevant where promotions or comparisons risk being misleading or aggressive.
Adoption appears likely to remain tied to measurable acquisition rather than brand activity. Smaller Cardiff operators tend to keep the stack if it produces quotable enquiries, but attribution friction is rising as consent prompts, browser limits and platform bundling make website signals harder to interpret. Agencies and in-house marketers are therefore likely to put more emphasis on cleaner tagging, offline conversion imports and first-party customer records. The market may also narrow around firms with enough operational discipline to act on lead quality, not just volume.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
Adoption by company size
Adoption of Google Ads rises with company size across the trading companies in this cohort. 0.3% of the 25,287 companies with under 10 employees run Google Ads (86 detected). 2.9% of the 1,326 companies with 10–50 employees run Google Ads (38 detected). 2.4% of the 167 companies with over 50 employees run Google Ads (4 detected). That is a 2.1% gap between the over 50 employees and under 10 employees bands.
128
Active firms
2026
6
Above £5M turnover
Trading firms
6
Median headcount
Filed accounts
262
Verified directors
Across this cohort
Top companies using Google Ads in Cardiff
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.
Operates a taxi and private hire booking platform connecting passengers with local driver-partners. Enables on‑demand and pre‑booked rides, including airport transfers, booked via mobile app or phone…
Serves consumers booking local and airport taxi rides, plus businesses managing employee and customer transport. Also targets licensed taxi and private-hire drivers as self-employed driver partners.
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Computed from 5 filingsOperates a taxi and private hire booking platform that connects passengers with local driver-partners via mobile app or phone. Provides on‑demand and pre‑booked rides, including airport transfers,…
Serves local passengers needing taxis or airport transfers, plus businesses managing employee or customer travel, with app and phone booking across UK towns and cities.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Operates a taxi and private hire booking platform that connects passengers with local drivers via mobile app and phone. Provides on‑demand and pre‑booked rides, airport transfers, and business travel…
Serves individual passengers booking local taxi and airport rides, plus businesses managing employee and customer transport. Also targets licensed taxi and private-hire drivers as self-employed…
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Operates a technology platform for booking taxi and private hire rides. Connects passengers with licensed local drivers via mobile app or phone for on‑demand and pre‑booked journeys, including…
Serves consumers booking local taxi and airport rides, plus businesses needing managed transport for employees or customers across towns and cities in the UK.
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Computed from 3 filingsProvides residential estate agency and lettings services, marketing properties for sale and rent. Manages rental properties for landlords, arranges property viewings and valuations, and offers…
Serves home buyers, sellers, renters, students, landlords and property investors in Cardiff, including those seeking professional or student accommodation and residential property opportunities.
Financial Health
HealthyHealthy · -5% CAGR over 2y
Location
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Computed from 5 filingsProvides private dental services including general dentistry, cosmetic treatments, dental implants, All‑on‑4 full‑arch implants, same‑day teeth, and smile makeovers. Offers consultations, sedation…
Serves private dental patients in Cardiff and across South Wales, including adults seeking implants, same-day teeth or smile makeovers, nervous patients, complex cases, and referrals from other…
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
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Computed from 5 filingsRetailer of bicycles and cycling equipment, specialising in electric, road, triathlon, gravel and mountain bikes. Sells models from multiple brands, along with accessories, parts and helmets, and…
Serves consumer cyclists in Cardiff and online UK shoppers, including commuters, e-bike buyers, road and triathlon enthusiasts, mountain bikers, families buying kids’ bikes, and CycleScheme users.
Financial Health
HealthyHealthy · Hiring · 4% CAGR over 4y
Location
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Computed from 3 filingsRetailer of household appliances and white goods through an online store and showroom. Sells cookers, ovens, hobs, refrigerators, freezers, washing machines, tumble dryers, dishwashers, small kitchen…
Sells primarily to consumers and homeowners in Cardiff and surrounding South Wales seeking kitchen appliances, white goods, small electricals and home entertainment products online or in-store.
Financial Health
HealthyHealthy · Hiring · 10% CAGR over 2y
Location
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Computed from 5 filingsProvides commercial cleaning services including office cleaning, window and carpet cleaning, exterior and bio-hazard cleaning, computer cleaning, and waste removal and recycling. Also offers…
Serves businesses and property organisations in Cardiff and South Wales, including offices, housing associations, extra care schemes, medical centres, schools, churches, car dealerships, healthcare…
Financial Health
WeakWeak · -7% CAGR over 5y
Location
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Computed from 4 filingsProvides rent-to-own household goods through weekly payment plans, including televisions, appliances, computing devices and furniture. Customers apply online to rent products such as washing…
Serves consumers and households in South Wales seeking pay-weekly or rental options for home goods, including TVs, appliances, furniture, computing and phones.
Financial Health
HealthyHealthy · 3% CAGR over 3y
Location
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Computed from 4 filingsInstalls and services domestic heating and energy systems, including gas boilers, air conditioning, fires and fireplaces. Also provides bathroom installations, solar PV systems, electrical services,…
Serves homeowners and domestic households in Wales, particularly people replacing boilers, upgrading home heating, renovating bathrooms, or considering residential green energy and electrical…
Financial Health
StableStable · -79% CAGR over 3y
Location
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Operates a taxi and private hire booking platform that connects passengers with local drivers. Provides on‑demand and pre-booked rides, airport transfers, and business travel, booked via mobile app…
Serves consumers booking local taxi and airport rides, plus businesses needing managed transport for employees or customers. Also targets licensed taxi and private hire drivers as self-employed…
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Computed from 5 filingsProvides English as a second language education through in‑person and online courses, including general English programmes, IELTS preparation, an international foundation programme for university…
Serves international students, junior learners aged 10–17, prospective undergraduates and adults seeking English language or foundation study in Cardiff or online.
Financial Health
WeakWeak · -13% CAGR over 4y
Location
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Computed from 5 filingsDesigns, installs and maintains fire safety and security systems for homes and businesses, including fire alarms, intruder alarms, CCTV, access control, emergency lighting and fire extinguishers.…
Serves homeowners and businesses in South Wales, including Cardiff, Newport and Bridgend, with buyers responsible for property security, fire safety and compliance in domestic and commercial premises.
Financial Health
StrongStrong · Hiring · 3% CAGR over 4y
Location
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Computed from 4 filingsProvides design, installation, servicing and maintenance of commercial and domestic air conditioning systems. Also supplies and installs cellar cooling equipment and bespoke chiller and freezer cold…
Serves homeowners and commercial customers in the Cardiff area, including hospitality venues with beer or wine cellars and businesses needing chilled or freezer cold room capacity.
Financial Health
HealthyHealthy · Hiring · 44% CAGR over 3y
Location
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Computed from 3 filingsOperates private student accommodation, providing en‑suite bedrooms and studio rooms in managed halls of residence. Facilities include shared kitchens, common areas, gym, laundry, cycle storage,…
Serves university students in Pontypridd, particularly those attending the University of South Wales, who are looking for private halls of residence close to campus.
Financial Health
HealthyHealthy
Location
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Computed from 4 filingsProvides private GP and nurse-led healthcare services including in‑clinic and online consultations, vaccinations, blood tests, health screenings, minor surgery, prescriptions, referrals, and…
Serves individuals and families seeking private healthcare, plus businesses and employers needing occupational health support, workplace vaccinations and staff medicals.
Financial Health
StableStable · Hiring · 8% CAGR over 3y
Location
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Computed from 4 filingsProvides physiotherapy and rehabilitation services including sports injury treatment, sports massage, shockwave therapy, chiropractic care, and podiatry. Assesses musculoskeletal conditions such as…
Serves individual patients in Cardiff, including professional athletes, recreational exercisers, office workers and less active adults with sports injuries, back pain or other musculoskeletal issues.
Financial Health
WeakWeak · 0% CAGR over 3y
Location
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Computed from 3 filingsRetailer of new and used commercial vans. Offers vehicle sourcing, sales, finance packages, fleet supply, warranties, and aftersales servicing and repairs through a commercial vehicle dealership.
Targets UK businesses, fleet operators, sole traders and tradespeople, from individual van users to companies managing multiple commercial vehicles.
Financial Health
StableStable · Profitable · -4% CAGR over 2y
Location
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Computed from 3 filingsProvides physiotherapy and rehabilitation services for musculoskeletal injuries and conditions. Offers sports injury treatment, sports massage, chiropractic care, shockwave therapy, and podiatry,…
Serves individual patients in Cardiff, including professional athletes, regular exercisers, office workers and less active people seeking private physiotherapy, sports injury care and rehabilitation…
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 2y
Location
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Computed from 3 filingsProvides plumbing and heating services including boiler installation, servicing and repairs, gas engineering and power flushing. Designs and installs bathrooms, wet rooms and kitchens, and carries…
Sells to homeowners and residential property customers needing plumbing, heating, boiler, gas, bathroom and kitchen installation services, mainly in Cardiff, Penarth, Barry, Newport and the wider…
Financial Health
StableStable · -11% CAGR over 2y
Location
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Computed from 5 filingsOperates an online music and entertainment website publishing news, reviews, interviews, and tour announcements. Aggregates and compares ticket availability and prices for concerts, festivals,…
Serves consumers looking for live music, theatre and sports tickets, plus B2B partners including ticket agents, exchange marketplaces, merchandise sellers, promoters, PR teams and artists.
Financial Health
StableStable · -10% CAGR over 4y
Location
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Computed from 5 filingsProvides private hire taxi and ride‑booking services, connecting passengers with local drivers through a mobile app and phone bookings. Offers on‑demand and pre‑booked journeys, airport transfers,…
Serves individual passengers needing local taxi and airport travel, and business customers managing employee or customer transport accounts in UK towns and cities.
Financial Health
StableStable
Location
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Computed from 4 filingsSupplies branded promotional merchandise and marketing materials, including printed bags, clothing, drinkware, badges, stationery, awards, conference folders and event items. Provides product…
Sells to businesses, charities, schools, sports clubs and event organisers needing branded merchandise for conferences, exhibitions, festivals and marketing campaigns.
Financial Health
StableStable · Hiring · 14% CAGR over 3y
Location
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Computed from 3 filingsOperates an online platform for booking car rentals. Lists vehicles from rental providers across airports and cities worldwide, allowing users to compare options, manage reservations, and arrange…
Serves B2C travellers, holidaymakers and visitors booking rental cars online at airports, cruise ports and city locations across international destinations.
Financial Health
StrongStrong · Hiring · 13% CAGR over 2y
Location
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Computed from 2 filingsOperates a private hire taxi booking service that connects passengers with local driver-partners via mobile app or phone. Provides on-demand and pre-booked rides, including airport transfers, with…
Sells to consumers needing local taxi, cab and airport transfer rides, and to businesses arranging employee or customer travel. Also targets self-employed taxi drivers and private hire licence…
Financial Health
StableStable · 0% CAGR over 1y
Location
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Computed from 2 filingsSupplies cut-to-size sheet materials for DIY and construction projects through an online store, including acrylic, polycarbonate and Dibond plastic sheets, MDF, plywood and other wood boards, with…
Serves UK DIY consumers, homeowners and home improvers, alongside trade customers such as builders, joiners, fitters and makers buying cut-to-size materials and home improvement components online.
Financial Health
StrongStrong · Hiring · 34% CAGR over 1y
Location
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Computed from 5 filingsDevelops software bots that automate accounting practice tasks such as bank reconciliation, reporting, and notifications. Provides off‑the‑shelf and bespoke automation tools using bots and AI,…
Serves accountants and accountancy practices, particularly firms using cloud accounting tools such as Xero and facing high-volume bookkeeping, reconciliation, reporting or payroll workloads.
Financial Health
StableStable · Hiring · 16% CAGR over 4y
Location
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Computed from 5 filingsProvides contract and commercial cleaning services for businesses, including offices, schools, medical surgeries, retail premises, car showrooms and communal areas, plus carpet and window cleaning,…
Serves businesses and organisations in South Wales and the South West, including offices, schools, surgeries and clinical facilities, car showrooms, retail premises, leisure sites and communal…
Financial Health
HealthyHealthy · Growing, Hiring · 4% CAGR over 4y
Location
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Computed from 3 filingsProvides occupational health services to employers, including absence management, return‑to‑work assessments, workplace assessments, health surveillance, pre‑employment screening, employee wellbeing…
Serves public and private sector employers across Wales and South West England, including health boards, local authorities, emergency services and businesses managing employee health and workforce…
Financial Health
HealthyHealthy · -3% CAGR over 2y
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Computed from 5 filingsDevelops and provides Microsoft Teams telephony and unified communications software. Its C360 platform integrates calling, contact centre functions and system integrations, with tools for monitoring…
Sells to businesses and organisations using Microsoft Teams, from small teams adopting Teams calling to growing and complex, regulated or mission-critical environments needing contact centre, voice…
Financial Health
HealthyHealthy · Hiring · 14% CAGR over 4y
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Computed from 2 filingsProvides an employee engagement and benefits platform via a mobile app, offering digital payslips, pension dashboards, internal communications, training access, health support services, and employee…
Serves employers and their workforces, including new starters, team members, working carers and employees accessing workplace pay, benefits, wellbeing and discount services.
Financial Health
StrongStrong
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Computed from 2 filingsOperates an independent day and boarding school providing secondary education, including Key Stage 3, GCSE and A‑level programmes. Offers pastoral care, extracurricular activities, sports academies,…
Serves parents and guardians of secondary-age students seeking independent day or boarding education, including UK and international pupils entering Years 7-12, sixth form, GCSE and summer programmes.
Financial Health
StableStable
Location
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Operates a taxi and private hire booking service, enabling passengers to book local rides and airport transfers via mobile app or phone. Connects customers with licensed drivers and supports cashless…
Serves consumers needing local, pre-booked and airport rides, plus businesses managing employee or customer transport. Also targets licensed taxi and private-hire drivers as driver-partners across UK…
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Computed from 2 filingsProvides property maintenance, repair, and renovation services for residential and commercial properties. Offers building repairs, refurbishments, mould remediation, and general upkeep, and mediates…
Serves B2C homeowners and residential property owners, plus landlords, tenants and their legal advisers in property disputes, with some small commercial property clients.
Financial Health
HealthyHealthy · 0% CAGR over 1y
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Computed from 5 filingsProvides financial planning and wealth management advice to individuals and business owners, including investment planning, retirement planning, protection, mortgages, and intergenerational wealth…
Serves private clients, business owners, company directors, retirees, sports professionals and professional partners seeking personal or corporate wealth management, retirement, protection, mortgage…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
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Provides architectural design services for residential and commercial projects, including bespoke new builds, extensions and renovations. Prepares feasibility studies, concept and technical designs,…
Serves homeowners, private residential clients and property developers planning bespoke new builds, extensions, renovations or commercial developments across Cardiff, South Wales, Wales and England.
Financial Health
N/AN/A
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Computed from 2 filingsInstalls specialist surfacing systems including anti-skid coatings, resin bound and resin bonded surfaces, epoxy flooring, and decorative aggregates. Provides surfacing for bridges, marine decks,…
Serves a mix of B2B, public sector and residential customers, including multinationals, SMEs, local authorities, ports, bridge and marine operators, housing/public area managers, and homeowners.
Financial Health
StableStable · -25% CAGR over 1y
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Computed from 5 filingsProvides domiciliary home care services including live‑in care, respite and companionship. Supports daily living with meal preparation, medication administration, domestic tasks, appointment escorts…
Serves individuals and families in Wales seeking home-based care for older adults, people with dementia, and those needing daily support, respite, companionship, or live-in assistance.
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
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Computed from 3 filingsProvides legal services focused on personal injury claims, representing individuals in cases such as workplace accidents, road traffic accidents, medical negligence, asbestos-related diseases, public…
Serves individuals in England and Wales seeking compensation after personal injuries, workplace and road accidents, medical negligence, asbestos disease, criminal injuries or accidents in public…
Financial Health
HealthyHealthy · Growing, Hiring · 14% CAGR over 2y
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Computed from 5 filingsDesigns and supplies lightweight tiled replacement roof systems for conservatories, including warm roofs and orangery roofs using composite components. Provides modular extension, garden room and…
Serves UK homeowners replacing conservatory roofs, plus trade installers and home improvement firms offering tiled warm roofs, orangery roofs, modular extensions, garden rooms and carports.
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
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Provides accounting and financial advisory services for businesses and individuals, including bookkeeping, management accounts, payroll, VAT, tax returns, corporation tax planning, company…
Serves small businesses, sole traders, partnerships, limited companies, charities, start-ups and individual taxpayers, primarily clients seeking ongoing financial support in South Wales.
Financial Health
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Computed from 5 filingsProvides legal education and training courses including CILEX CPQ, CILEX Legacy and Solicitors Qualifying Examination (SQE) preparation. Also delivers professional and personal development programmes…
Serves aspiring and practising legal professionals, law students, education and frontline support professionals, and adults, young people and families seeking personal or professional development.
Financial Health
StrongStrong · Hiring · 29% CAGR over 4y
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Computed from 5 filingsProvides debt collection and High Court enforcement services, including recovery of unpaid debts, enforcement of county court judgments, debtor tracing, commercial rent arrears recovery, residential…
Serves UK businesses, parking operators, landlords and property owners needing high-volume debt recovery, CCJ enforcement, commercial rent arrears recovery, lease forfeiture, debtor tracing or…
Financial Health
StableStable
Location
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Computed from 5 filingsDevelops AI-powered omnichannel contact centre software for enterprises. Provides agent desktop interfaces, workflow automation, analytics and reporting tools, and integrations with CRM and business…
Sells B2B to enterprises running cloud or on-premise contact centres, including customer service, CX and operations teams using Amazon Connect, Cisco Enterprise or Webex platforms; also addresses…
Financial Health
StableStable · -64% CAGR over 4y
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Computed from 5 filingsOperates an indoor and outdoor children’s play centre with slides, climbing structures, zip wire, sand and water play areas. Offers timed entry sessions, birthday party hosting, memberships, and a…
Sells to families with children up to age 12, especially parents of toddlers and primary-age children seeking play sessions and birthday parties. Also serves childminders, carers, disabled visitors…
Financial Health
WeakWeak · Hiring · 27% CAGR over 4y
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Computed from 3 filingsSupplies industrial traction batteries, forklift batteries, automotive SLI batteries and battery chargers. Acts as exclusive distributor of CEIL traction batteries and provides battery fitting,…
Sells to B2B customers operating forklifts and industrial battery fleets, including warehouses, factories, materials handling firms and distribution networks across the UK and Europe.
Financial Health
StableStable · Hiring · 10% CAGR over 2y
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Computed from 5 filingsProvides corporate finance, legal, tax and communications advisory services for corporate transactions. Supports businesses with mergers and acquisitions, business sales, management buyouts,…
Serves business owners, management teams and investors involved in acquisitions, disposals, management buyouts, employee ownership sales, private equity deals and fundraising across the UK, Ireland…
Financial Health
StableStable · Hiring · 9% CAGR over 4y
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Computed from 5 filingsManufactures industrial electric heating elements and related components, including cartridge, immersion, tubular, ceramic and silicone heaters, as well as control panels, thermocouples and…
Serves B2B industrial customers needing custom heating elements, including aviation, automotive, energy, food processing, HVAC, offshore, packaging, petrochemical, plastics, rail, shipping and marine…
Financial Health
HealthyHealthy · 2% CAGR over 4y
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Computed from 5 filingsProvides private dental services including check-ups, hygiene treatments, fillings, crowns, bridges, dentures and root canal therapy. Also offers cosmetic dentistry such as teeth whitening, composite…
Sells to private dental patients and families, including children, seeking general, cosmetic and preventive dentistry, plus facial aesthetics. Serves individuals in Dinas Powys, Cardiff, Penarth,…
Financial Health
WeakWeak · 0% CAGR over 4y
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Key facts
About 4% of the trading cohort reports turnover above £5M (6 of 128 firms) — the rest sits below that revenue band.
8% of the cohort was incorporated since 2022 (11 firms), so a sizeable share is in its first few filing cycles.
87.5% (112) also run a web-analytics tag, while 50.8% (65) also run a tag-management layer, pointing to paid-search set-ups built around attribution rather than click-only advertising.
57.0% (73) are on a content-management stack and 31.3% (40) also run search-optimisation tooling, so landing-page work often sits alongside paid-search tracking.
Field Services & Trades and Advanced Manufacturing each account for 15.6% (20) of the Cardiff cohort; Construction adds 10.9% (14), with sector tags overlapping.
The ASA applies the CAP Code to non-broadcast digital advertising in paid-for space and marketer-controlled online spaces; conversion tracking also sits within the ICO’s data-protection and PECR framework.
The UK digital advertising market reached £40.5 billion in 2025, up 10% year-on-year; video investment reached £9.3 billion.
What else do Google Ads users run?
Share of the 128 Google Ads-running UK companies where each technology was also detected. As of June 2026.
Who runs Google Ads in the UK?
By sector
Sectors overlap, so shares need not sum to 100%.
By financial health
From filed accounts; firms with fewer than two filings show as insufficient history.
6
Median headcount
£432.7K
Median UK turnover
4.7%
Above £5M turnover
11
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 237 companies, alongside financials and websites, in one Excel + CSV file.
How Google Ads 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.
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.
Google Ads is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
Google Ads elsewhere
Frequently asked questions
How many companies in Cardiff use Google Ads?
How is Google Ads usage detected?
What kinds of companies use Google Ads in Cardiff?
What do Google Ads users in Cardiff also run?
How fresh is this data?
Can I get contact details for these companies?
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One Excel/CSV file with company details, websites and key data — yours to download and use.