Accounting Companies Using Google Tag Manager in the UK: 956 Active Firms (2026)
Accounting firms using tag-management technology measure website journeys and marketing attribution across UK audit, tax and advisory services.
For accounting practices, a tag-management layer sits between the website, analytics tools and paid-media pixels, allowing marketing teams or agencies to change tracking without rebuilding the site. Adoption usually signals a practice with a more deliberate direct-channel posture: lead forms, local-office pages, tax content and event campaigns need attribution rather than simple traffic counts. The relevant buying centre is often practice growth, finance-facing marketing operations or an outsourced web team, with partners still close to approval. It fits firms selling recurring compliance, statutory audit, bookkeeping, payroll and advisory work to business clients.
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Across the UK, 956 accounting and audit practices are running this tag-management system, making it the dominant detected tag manager in the sector at 99.5% versus 0.8% for the next detected system. Reported employment totals 3,374 people, giving the adoption cohort a measurable but practice-heavy footprint rather than a pure micro-business sample. Registered-office distribution is London-weighted at 25.4%, followed by the North West and South East at 13.8% each, the East of England at 10.1%, and the West Midlands at 8.8%.
Statutory audit brings a different operating context from ordinary professional-services marketing. The FRC is the Competent Authority for public supervision of UK statutory auditors, while registration and supervision are carried through recognised supervisory bodies and audit qualifications through recognised qualifying bodies. For practices running tag-management scripts, the practical issue is less the tag itself than governance around website enquiry flows: who can add tracking, how consent is handled, and whether analytics access is controlled when client-facing audit, tax and advisory pages are managed by agencies or distributed office teams.
Adoption appears mature, so change is more likely to come from housekeeping than first-time installation. Accounting practices tend to keep tag-management layers because they let small marketing teams and agencies maintain attribution across content, search and local-office campaigns. Pressure may build around cleaner consent records, fewer unmanaged scripts and simpler reporting for partners who want enquiry quality rather than volume metrics. Consolidation in audit and advisory also points towards rationalised web estates, where inherited tracking setups are standardised after mergers rather than rebuilt from scratch.
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 Tag Manager rises with company size across the trading UK accounting companies in this cohort. 2% of the 34,652 companies with under 10 employees run Google Tag Manager (681 detected). 21.6% of the 1,209 companies with 10–50 employees run Google Tag Manager (261 detected). 41.7% of the 60 companies with over 50 employees run Google Tag Manager (25 detected). That is a 39.7% gap between the over 50 employees and under 10 employees bands.
956
Active firms
2026
99.5%
Of detected Tag managers share
UK accounting
6
Median headcount
Filed accounts
2,148
Verified directors
Across this cohort
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Key facts
About 1% of the trading cohort reports turnover above £5M (18 of 956 firms) — the rest sits below that revenue band.
5% of the cohort was incorporated since 2022 (49 firms), so a sizeable share is in its first few filing cycles.
Among accounting firms with a detectable tag manager, this tag-management system accounts for 99.5% (956) of 961 detections, while the only other detected system accounts for 0.8% (8).
London accounts for 25.4% (243) of the cohort, ahead of the North West and South East at 13.8% (132) each.
Website-stack overlap is concentrated in content management and measurement, with 69.5% (664) also running a content-management platform and 45.5% (435) also running analytics tooling.
Search, security and form-protection tools also appear frequently alongside tag management, at 42.1% (402), 41.6% (398) and 41.2% (394) respectively.
Statutory audit is regulated: the FRC is the Competent Authority under the Statutory Auditors and Third Country Auditors Regulation 2016, with audit firms supervised through ACCA, Chartered Accountants Ireland, ICAEW and ICAS.
Tag manager market share among UK Accounting
Share of the 961 UK Accounting with a detectable system. As of June 2026.
What else do Google Tag Manager-running Accounting run?
Share of the 956 Google Tag Manager-running UK companies where each technology was also detected. As of June 2026.
Where Google Tag Manager Accounting 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
£317.9K
Median UK turnover
1.9%
Above £5M turnover
49
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 1,735 companies, alongside financials and websites, in one CSV file.
Top UK Accounting using Google Tag Manager
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 3 filingsProvides accountancy, audit and assurance, taxation, and business advisory services. Advises companies and individuals on financial management, tax planning, R&D and creative industry tax relief, and…
Serves entrepreneurs, established businesses and private clients, with a focus on arts, media and entertainment, plus healthcare, hospitality, manufacturing, professional services, property, retail,…
Financial Health
HealthyHealthy · Profitable, Hiring · 8% CAGR over 2y
Location
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Computed from 4 filingsProvides accounting, audit and bookkeeping services alongside corporate and personal tax planning. Advises businesses and individuals on payroll, VAT compliance, R&D tax credits, corporate finance,…
Serves individuals, entrepreneurs, SMEs and owner-managed businesses, including start-ups, growing companies and organisations planning exit, across sectors such as charities, healthcare,…
Financial Health
StrongStrong · Hiring · 26% CAGR over 3y
Location
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Computed from 3 filingsProvides accounting, audit and assurance, bookkeeping, payroll, and cloud accounting services. Advises businesses and individuals on tax planning, corporate finance, financial planning, and strategy,…
Serves sole traders, startups, SMEs and large corporates across multiple sectors, plus individuals and families, with particular focus on agriculture and landed estates, not-for-profits, healthcare,…
Financial Health
StrongStrong · 3% CAGR over 1y
Location
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Computed from 5 filingsProvides accountancy and business advisory services, including audit, tax planning, payroll, corporate finance, business recovery, forensic accounting, and VAT advice. Supports private companies,…
Serves private companies, large corporates, not-for-profits and private individuals, with sector focus including academies, agriculture, charities, hospitality, manufacturing, healthcare, property…
Financial Health
StrongStrong
Location
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Computed from 3 filingsProvides accounting and advisory services including audit and assurance, bookkeeping, payroll, company secretarial support, corporate and personal tax planning, VAT and customs advice, valuations,…
Serves businesses from start-ups and small firms to international groups, plus private individuals and families. Also targets charities, schools, regulated firms and sector-specific organisations…
Financial Health
StrongStrong · Hiring · 150% CAGR over 2y
Location
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Computed from 3 filingsProvides accounting, audit and tax advisory services, including annual accounts preparation, corporation tax and VAT returns, bookkeeping, payroll, management accounts and personal tax. Also offers…
Serves businesses and private clients, including limited companies, solicitors subject to accounts rules, Innovate UK-funded businesses, organisations considering M&A, and individuals with personal…
Financial Health
StrongStrong
Location
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Computed from 2 filingsProvides accountancy and business advisory services including audit and assurance, tax compliance and planning, payroll, corporate finance, outsourced finance functions, wealth management, IT…
Serves UK businesses and individuals, including food production, industrial and logistics, retail and wholesale, technology, professional services, and organisations trading internationally.
Financial Health
HealthyHealthy · Profitable, Growing, Hiring · 109% CAGR over 1y
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Computed from 5 filingsProvides audit, accountancy and tax services including statutory and external audits, bookkeeping, payroll, corporate and personal tax planning, and R&D tax credit claims. Offers business advisory,…
Serves UK businesses and individuals, including startups and firms in legal, travel and hospitality, tech, property, digital assets, healthcare, care homes and FCA-regulated sectors.
Financial Health
StrongStrong · Growing, Hiring · 72% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy and business advisory services including financial accounting, tax planning and compliance, audit and assurance, payroll outsourcing, cloud accounting, and corporate finance…
Serves businesses and private clients needing accountancy, tax, payroll, audit and corporate finance support, with particular focus on education and academies, transport and logistics, hospitality,…
Financial Health
HealthyHealthy · 0% CAGR over 3y
Location
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Computed from 5 filingsProvides accounting, audit and tax compliance services to businesses and individuals, along with business advisory, financial planning, funding support, wealth management and outsourced finance…
Serves start-ups, growing companies and established businesses, particularly owner-managed firms and business leaders seeking accountancy, tax and advisory support around Wilmslow and Cheshire.
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 4y
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Computed from 5 filingsProvides accounting and advisory services including audit and assurance, corporate tax and VAT, corporate finance, payroll, cloud accounting, financial planning, and business recovery, serving…
Serves owner-managed and mid-market businesses, academy schools, charities, professional practices, FCA-regulated firms and private clients across sectors including automotive, healthcare, property,…
Financial Health
StrongStrong · Hiring · 5% CAGR over 4y
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Computed from 5 filingsProvides accounting, payroll, audit and tax services for businesses, along with corporate finance advice, research and development tax relief and capital allowances claims, and wealth planning…
Serves business clients and organisations in the North West, with sector pages for academies, medical practices, agriculture, solicitors, manufacturing, automotive and property businesses.
Financial Health
StrongStrong · Hiring · 10% CAGR over 4y
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Computed from 3 filingsProvides accountancy and business advisory services including tax planning and compliance, audit, accounts preparation, payroll, bookkeeping, and cloud accounting. Also offers corporate finance…
Serves businesses and entrepreneurs, particularly small, family and owner-managed firms, start-ups and business owners. Targets organisations in construction, property, legal, charities, education,…
Financial Health
HealthyHealthy · Hiring · 24% CAGR over 2y
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Computed from 4 filingsProvides accounting, audit, tax and financial outsourcing services for businesses. Offers annual accounts preparation, payroll, company secretarial support, business tax and advisory services,…
Serves UK businesses, from owner-managed SMEs to larger corporates, with a focus on media and entertainment, infrastructure and renewable energy, and growing SME clients.
Financial Health
HealthyHealthy · Hiring · 30% CAGR over 4y
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Computed from 5 filingsProvides accountancy and tax advisory services for businesses and individuals, including statutory accounts preparation, audit and assurance, tax planning and compliance, company secretarial support,…
Serves SMEs and larger businesses across diverse sectors, as well as individual personal tax clients. Sells to business owners needing accountancy, audit, tax and finance support, including startups…
Financial Health
HealthyHealthy · -66% CAGR over 4y
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Computed from 5 filingsProvides accountancy, audit, tax planning, payroll, corporate finance and business advisory services, including mergers and acquisitions support, cloud accounting, digital transformation and property…
Serves SMEs and organisations in education and academies, haulage and logistics, hospitality, media, entertainment and sport, professional services and recruitment, plus property owners and private…
Financial Health
HealthyHealthy · -3% CAGR over 4y
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Computed from 3 filingsProvides chartered accountancy services including audit, financial reporting, bookkeeping, payroll, VAT and tax planning. Advises individuals and businesses on corporate finance, company secretarial…
Serves B2B and B2C clients: sole traders, high-net-worth individuals, family-run businesses, limited companies and international groups across multiple industries.
Financial Health
StrongStrong · Hiring · 13% CAGR over 2y
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Computed from 5 filingsProvides accountancy and business advisory services including audit, tax planning and compliance, payroll and outsourcing, corporate finance, and financial reporting support for businesses and…
Serves businesses, private individuals and sector-specific clients, with separate routes for business and individual customers; also targets accountancy firms considering merger opportunities.
Financial Health
StrongStrong · Hiring · 6% CAGR over 4y
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Computed from 5 filingsProvides accounting, tax compliance, and business advisory services to small businesses and professionals. Offers bookkeeping, cash flow reporting, CIS and VAT support, service charge accounting,…
Sells to small businesses, primarily in construction, property, hospitality and healthcare, including care homes. Also serves dentists, landlords, property management companies and some individuals…
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
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Computed from 3 filingsProvides chartered accountancy and business advisory services including audit, bookkeeping and accounts preparation, corporate and personal tax planning, payroll administration, VAT and R&D tax…
Serves businesses, charities, academies, professionals and individuals, with sector focus including agriculture, healthcare, hospitality, manufacturing, property, retail, technology, transport and…
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HealthyHealthy · Profitable, Hiring · 6% CAGR over 2y
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Computed from 4 filingsProvides accounting and advisory services including accounts preparation, bookkeeping, VAT, audit, tax compliance and planning, business advisory, company secretarial support, financial due…
Serves businesses and individuals, particularly across Greater Manchester, including property and construction firms, professional and legal services, TV and film professionals, and medical and…
Financial Health
StrongStrong · Growing, Hiring · 5% CAGR over 3y
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Computed from 3 filingsProvides chartered accountancy and business advisory services including business and personal tax planning, statutory and specialist audits, HMRC investigation support, cloud accounting, transaction…
Serves SMEs, business owners, start-ups, not-for-profits, solicitors, contractors, freelancers and personal tax clients across the Midlands, Staffordshire and Cheshire.
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StrongStrong · Growing, Hiring · 7% CAGR over 2y
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Computed from 4 filingsProvides accountancy and tax services to businesses and individuals, including audit, bookkeeping, payroll, financial statements, management accounts and VAT. Also offers tax planning, HMRC…
Serves businesses and their owners, academy trusts, healthcare organisations, property and construction firms, renewables businesses, and individuals with personal tax needs.
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HealthyHealthy · Growing, Hiring · 19% CAGR over 3y
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Computed from 5 filingsProvides accountancy and business advisory services including bookkeeping, annual accounts preparation, VAT returns, payroll processing, personal and corporate tax compliance, audit and assurance,…
Serves business owners, CEOs and managing directors, mainly SMEs and start-ups in building, property, legal, healthcare, retail, ecommerce, hospitality, leisure, digital, technology and education…
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StrongStrong · Growing, Hiring · 11% CAGR over 4y
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Computed from 5 filingsProvides accounting and outsourced finance services for agencies, consultancies and technology businesses. Services include financial management, tax planning, R&D tax relief claims, strategic…
Targets B2B clients: agencies, consultancies and technology businesses with over £1m turnover, particularly founders, owners and leadership teams needing finance and accountancy support.
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StrongStrong · Growing, Hiring · 14% CAGR over 4y
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Computed from 5 filingsProvides accountancy services including auditing, financial accounts preparation, bookkeeping and payroll. Specialises in working with charities, cooperatives, community interest companies, community…
Serves UK not-for-profit and social-purpose organisations, including charities, cooperatives, community interest companies, community benefit societies and social enterprises, from small newer…
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StrongStrong · Growing, Hiring · 16% CAGR over 4y
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Computed from 3 filingsProvides accountancy and business support services including bookkeeping, payroll, VAT and tax returns, tax planning, and cloud accounting. Also advises on business planning, company secretarial…
Serves businesses and individual taxpayers, particularly startups and established SMEs needing ongoing accountancy, bookkeeping, payroll, VAT and tax support, plus business owners seeking planning…
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StrongStrong · Growing, Hiring · 22% CAGR over 2y
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Computed from 5 filingsProvides accounting and tax services to businesses and individuals, including bookkeeping, payroll, statutory accounts, VAT compliance, audit, management accounts, and business tax planning. Also…
Sells to UK businesses and individual taxpayers needing accounting and tax support, including startups, growing companies, medical practices, property landlords, and organisations requiring audit,…
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Computed from 5 filingsProvides outsourced accounting services for small and medium-sized businesses, including bookkeeping, payroll, tax compliance, management accounting, and Xero support. Also offers business advisory,…
Serves UK small and medium-sized business owners needing ongoing finance function support, tax compliance, bookkeeping, payroll and business advisory input, rather than individual consumers.
Financial Health
HealthyHealthy · Hiring · 9% CAGR over 4y
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Computed from 5 filingsProvides online accounting and tax services for individuals, contractors and small businesses, including bookkeeping, payroll, VAT and corporation tax returns, self‑assessment, company formation,…
Serves small businesses and individuals, including limited companies, partnerships, sole traders, contractors, freelancers, landlords, self-employed workers, start-ups, e-commerce sellers,…
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StrongStrong · Hiring · 46% CAGR over 4y
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Computed from 5 filingsProvides accountancy and financial management services including accounts preparation, tax advice and compliance, payroll processing, VAT support, bookkeeping, budgeting and forecasting. Also assists…
Serves UK sole traders and SMEs with £10k-£25m turnover and 1-100 employees, from start-ups to established firms, plus individuals needing tax support. Sector focus includes hospitality, professional…
Financial Health
StrongStrong · Growing, Hiring · 24% CAGR over 4y
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Computed from 5 filingsProvides accounting, audit and tax advisory services including statutory audits, management accounts, payroll, company secretarial support, business advisory, and tax planning such as R&D tax credits…
Serves tech start-ups, university spin-outs, established companies and owner-managed businesses, plus high-net-worth individuals, across life sciences, healthcare, engineering, manufacturing,…
Financial Health
HealthyHealthy · -68% CAGR over 4y
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Computed from 4 filingsProvides accountancy and professional services including audit, tax planning and compliance, payroll, corporate finance, wealth management and business advisory. Works with businesses, organisations…
Serves businesses at launch, growth and succession stages, third sector organisations, and private individuals across the UK, including owners, finance teams, trustees and personal tax clients.
Financial Health
StrongStrong · Growing · 1% CAGR over 3y
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Computed from 4 filingsProvides accounting and business advisory services including auditing, bookkeeping, payroll, tax planning, VAT advice, corporate finance, restructuring support, and probate and estate administration…
Serves UK businesses, charities and individuals, with sector focus on construction, health and social care, hospitality, manufacturing and engineering, professional services, property, recruitment…
Financial Health
StrongStrong · Growing, Hiring · 18% CAGR over 3y
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Computed from 5 filingsProvides chartered accountancy and financial management services including audit and assurance, fractional CFO support, virtual finance team functions, financial reporting, and funding advice for…
Serves entrepreneurial businesses, particularly in technology, ecommerce, recruitment, construction and manufacturing, including owners and leadership teams seeking external finance support.
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 4y
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Computed from 3 filingsProvides accountancy, audit, tax planning, and business advisory services for businesses and individuals. Offers financial reporting, management accounting, taxation compliance, and strategic…
Serves Sussex-based businesses and business owners, including limited companies, sole traders, partnerships and corporate clients seeking an ongoing accountant or registered auditor relationship.
Financial Health
HealthyHealthy · 3% CAGR over 2y
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Computed from 5 filingsProvides accountancy and business advisory services for businesses and individuals, including financial accounts preparation, audit and assurance, bookkeeping, payroll, VAT and tax compliance, tax…
Serves large and small businesses, owner-managed firms, start-ups, not-for-profits and private individuals across East Anglia, with sector focus on agriculture, construction, finance, manufacturing,…
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 5y
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Computed from 3 filingsProvides chartered accountancy and tax advisory services to businesses and individuals, including audit, financial statement preparation, statutory compliance, business tax planning, personal tax and…
Serves owner-managed businesses, small to large companies, complex groups and UK subsidiaries of overseas parents, plus individuals, families and business owners. Sectors include property,…
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HealthyHealthy · Growing, Hiring · 6% CAGR over 2y
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Computed from 5 filingsProvides accounting, tax compliance and advisory services for businesses and individuals, including cloud accounting, management reporting, payroll, company formations, company secretarial support,…
Serves businesses, business owners, entrepreneurs, professionals, landlords and private individuals with complex tax affairs, across accounting, tax, wealth and business advisory client segments.
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StrongStrong · Growing, Hiring · 24% CAGR over 4y
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Computed from 5 filingsProvides accounting and tax services to businesses and individuals, including accounts preparation, bookkeeping, payroll, VAT returns, business tax planning, personal tax advice, cloud accounting…
Serves SMEs, limited companies, sole traders, buy-to-let landlords and personal tax clients, mainly across the South of England, including businesses with or without in-house finance teams.
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 4y
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Computed from 5 filingsProvides outsourced finance and accounting services for businesses, including bookkeeping, payroll, tax planning, R&D tax credit claims, budgeting, forecasting, and financial reporting, supported by…
Serves startups and growing SMEs needing ongoing finance support, including founders and management teams looking for bookkeeping, tax, payroll, forecasting and CFO-style guidance.
Financial Health
StrongStrong · Growing, Hiring · 44% CAGR over 5y
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Computed from 5 filingsProvides chartered accountancy, audit and tax advisory services to businesses and professionals. Services include accounts preparation, taxation, payroll, audit and assurance, HMRC enquiry support,…
Serves UK businesses and professional practices, including doctors, dentists, IT contractors, engineers, solicitors, restaurants, caterers, opticians, eye clinics, retail and manufacturing…
Financial Health
HealthyHealthy · -2% CAGR over 4y
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Computed from 5 filingsProvides accounting, bookkeeping and financial reporting services, business and corporate tax planning and compliance, payroll and payment processing, company secretarial and governance support, and…
Serves businesses and private clients, including organisations in arts, charities, education, manufacturing, energy, financial services, hospitality, property, retail and technology, with UK/UAE or…
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
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Computed from 5 filingsProvides accountancy and business advisory services to SMEs, including preparation of annual accounts and tax returns, bookkeeping, VAT and payroll processing, management accounts, cashflow…
Serves SMEs and owner-managed businesses in Chelmsford, Tiptree and Essex, from start-ups to larger established companies.
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 4y
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Computed from 3 filingsProvides chartered accountancy services to businesses, including audit, tax compliance and planning, payroll and bookkeeping, management accounts, business planning, corporate advisory, and…
Serves small and medium-sized businesses in the Edinburgh and Lothian region, particularly owners and managers needing accountancy, tax, audit, payroll and commercial advisory support.
Financial Health
StrongStrong
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Computed from 5 filingsProvides accounting and tax services to businesses and individuals, including annual accounts preparation, bookkeeping, payroll, VAT returns, corporate and personal tax planning, company formation,…
Serves UK businesses from independent SMEs to large multinationals, plus private individuals, across e-commerce, hospitality, property, retail/wholesale, manufacturing, legal/professional, start-up,…
Financial Health
StrongStrong · Hiring · 12% CAGR over 4y
Location
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Computed from 5 filingsProvides accounting and finance services for businesses, including cloud-based bookkeeping and accounting, outsourced finance function and CFO support, R&D tax credit and SEIS/EIS investment advice,…
Serves owner-managed and growing UK businesses, particularly SaaS/subscription companies, eCommerce firms, startups and professional services organisations.
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides chartered accountancy and business advisory services including auditing, annual accounts, bookkeeping, payroll, VAT and tax returns. Also offers strategic consultancy such as financial…
Serves owner-managed businesses, organisations and private individuals in Cheshire and Yorkshire, including business owners seeking strategic finance input and personal clients with tax, wealth,…
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsProvides accounting and advisory services for businesses and individuals, including bookkeeping, payroll, VAT, corporate tax planning, company secretarial support, corporate finance and recovery, as…
Serves businesses and private individuals, with sector focus on architects, contractors, film, investment and financial firms, retailers and shipping businesses, plus start-ups and owner-managed…
Financial Health
HealthyHealthy · -9% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides chartered accountancy services including financial accounting, bookkeeping, payroll, audit and assurance, and tax services such as corporate, personal, VAT and estate planning, alongside…
Serves start-ups, established businesses, company directors and individuals needing accountancy support, including organisations requiring audit and assurance and clients with corporate, personal,…
Financial Health
StrongStrong · Growing, Hiring · 59% CAGR over 4y
Location
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1,685 more companies and their verified directors are in the file
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How Google Tag Manager 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. accounting 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 accounting 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.
Google Tag Manager is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
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Frequently asked questions
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