Accounting Companies Using Site Kit in the UK: 162 Active Firms (2026)
Accounting firms using website measurement tools provide audit, tax and advisory services while measuring digital engagement across the UK.
For accounting and audit practices, the measurement layer sits close to new-client acquisition rather than core engagement delivery. Adoption usually signals a firm with an active website pipeline: service pages for audit, tax and payroll, downloadable guidance, enquiry forms and campaign landing pages that need attribution. The buyers tend to be partners, marketing managers or outsourced web agencies, not centralised software-procurement teams. Engagements are usually modest web, analytics and search projects rather than enterprise system programmes, but they still imply budget for content maintenance and conversion tracking.
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The UK adoption cohort contains 162 actively trading accounting and audit firms running this stack. It sits second in the sector’s analytics-tool ranking at 9.5%, among 1,712 accounting and audit firms with detected analytics tooling. Reported employment across the cohort totals 2,302 people, which makes the adoption base more practice-led than enterprise-heavy. The regional skew is spread across South East 17.3%, North West 15.4%, London 14.2%, West Midlands 13.0% and South West 9.9%, rather than being a purely London-centred pattern.
Statutory audit sits within a supervised profession, so website measurement is not just a sales-operational choice. The FRC acts as the Competent Authority for public supervision of UK statutory auditors, with registration and supervision handled through recognised supervisory bodies and audit qualifications offered through recognised qualifying bodies. For firms running conversion tracking, consent banners, cookie governance and client-confidentiality controls matter because enquiry forms can capture commercially sensitive tax, payroll or audit information before a formal engagement begins.
Adoption appears most likely to remain concentrated among practices that treat the website as a business-development channel rather than a brochure. Smaller partner-led firms may keep lighter measurement set-ups if referrals still dominate, while multi-office practices tend to need cleaner attribution across tax, audit and outsourced-finance enquiries. Bundling inside content-management and hosting arrangements should keep switching friction low, although privacy governance and consent fatigue may make some firms pare back tracking rather than add more tools.
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 Site Kit rises with company size across the trading UK accounting companies in this cohort. 0.3% of the 34,652 companies with under 10 employees run Site Kit (115 detected). 4.1% of the 1,209 companies with 10–50 employees run Site Kit (49 detected). 6.7% of the 60 companies with over 50 employees run Site Kit (4 detected). That is a 6.4% gap between the over 50 employees and under 10 employees bands.
162
Active firms
2026
9.5%
Of detected Analytics share
UK accounting
6
Median headcount
Filed accounts
331
Verified directors
Across this cohort
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Key facts
About 3% of the trading cohort reports turnover above £5M (5 of 162 firms) — the rest sits below that revenue band.
4% of the cohort was incorporated since 2022 (8 firms), so a sizeable share is in its first few filing cycles.
Among 1,712 accounting and audit firms with a detectable analytics system, the analytics system in scope ranks second by detected share at 9.5% (162), behind the largest detected system at 84.7% (1,450).
Website stack overlap is high: 98.8% (160) also run a content management platform, 78.4% (127) run another analytics tool and 63.0% (102) run search-optimisation tooling.
Registered locations skew outside London, with South East 17.3% (28), North West 15.4% (25), London 14.2% (23), West Midlands 13.0% (21) and South West 9.9% (16).
Statutory audit sits under the Statutory Auditors and Third Country Auditors Regulation 2016, with the FRC as Competent Authority and four Recognised Supervisory Bodies registering and supervising audit firms.
FRC 2025 data records 3,760 registered statutory audit firms in 2024, down from 5,007 in 2020 and 4,038 in 2023.
WordPress plugins market share among UK Accounting
Share of the 1,712 UK Accounting with a detectable system. As of June 2026.
What else do Site Kit-running Accounting run?
Share of the 162 Site Kit-running UK companies where each technology was also detected. As of June 2026.
Where Site Kit 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
£316.6K
Median UK turnover
3.1%
Above £5M turnover
8
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 256 companies, alongside financials and websites, in one CSV file.
Top UK Accounting 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 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,…
Financial Health
HealthyHealthy · Growing, Hiring · 6% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsProvides accounting, bookkeeping, audit and assurance, corporate and personal tax services, VAT and payroll support, company secretarial work, and business advisory services, including estate…
Serves growth-minded businesses and private clients, mainly in Central and West London, including construction, medical, veterinary, retail, energy, infrastructure, real estate, estate agency,…
Financial Health
StableStable · Hiring · 8% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides accountancy and business advisory services including audit and assurance, tax planning and compliance, bookkeeping, payroll, VAT returns, company secretarial support, financial planning, and…
Serves individuals and businesses in and around Chesterfield, including start-ups, family businesses, SMEs, larger companies and private clients.
Financial Health
HealthyHealthy · Growing · 2% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides chartered accountancy and tax advisory services to businesses and individuals, including accounts preparation, audit and assurance, bookkeeping, payroll, VAT, corporate and personal tax…
Serves small and medium-sized businesses and individual taxpayers in Leicester, Nuneaton and surrounding areas, including agriculture, charities, creative, dental, manufacturing, medical,…
Financial Health
StableStable
Location
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Financial sub-scores
Computed from 3 filingsProvides chartered accountancy and tax advisory services including audit and accounting, bookkeeping, VAT and management accounts, corporate and personal tax planning, payroll and HR administration,…
Serves UK businesses of varying sizes, from start-ups to established companies, plus individuals with tax affairs. Sector focus includes not-for-profit, construction, financial services, sport and…
Financial Health
StrongStrong · Hiring · 6% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsProvides chartered accountancy, audit and tax advisory services for individuals, businesses and charities. Offers tax planning, corporate finance advice, bookkeeping, payroll, and accounting support…
Serves private individuals, startups, SMEs, family businesses, large/multinational companies and charities/not-for-profits, mainly across Sussex and the South East, with charity clients also across…
Financial Health
StableStable
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
Location
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Financial sub-scores
Computed from 3 filingsProvides accountancy and audit services for businesses and individuals, including bookkeeping, payroll, tax compliance and VAT. Also offers corporate finance advice, business planning, consultancy,…
Serves SMEs and larger companies, LLPs, professional partnerships, solicitors, charities and individuals, with clients across the UK and overseas in Europe, the United States and the Far East.
Financial Health
HealthyHealthy · Profitable · 0% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsProvides accountancy and business advisory services including accounts preparation, auditing, payroll administration, cloud accounting, and specialist tax advice. Also offers VAT support, tax…
Serves UK businesses, charities and individuals, with a focus on creative industries, property businesses, not-for-profits, engineering firms and manufacturers.
Financial Health
StableStable · -3% CAGR over 2y
Location
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Financial sub-scores
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
Location
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Computed from 2 filingsProvides accountancy, auditing and tax advisory services for businesses and individuals. Offers payroll, VAT, compliance, business advisory, cloud accounting software support, estate planning,…
Serves startups, growing and established businesses in Kent, especially property, construction, manufacturing, technology, SaaS, block management and creator sectors, plus private clients including…
Financial Health
StableStable · 7% CAGR over 1y
Location
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Financial sub-scores
Computed from 5 filingsProvides chartered accountancy services to businesses and individuals, including financial accounts preparation, audit, tax planning and compliance, bookkeeping, payroll processing, VAT returns,…
Serves business clients of all sizes, including startups and small businesses, plus individual clients needing accountancy and tax support, primarily across Yorkshire and beyond.
Financial Health
HealthyHealthy · Hiring · 3% CAGR over 4y
Location
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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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Financial sub-scores
Computed from 5 filingsProvides accountancy and business advisory services to companies and individuals, including preparation of annual accounts, audit, tax planning and compliance, financial planning, HMRC investigation…
Serves businesses and individuals, especially business owners, across sectors including manufacturing, professional services, retail, agriculture, construction, property, transport and service…
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 3 filingsProvides accountancy and financial advisory services including annual accounts, audit, bookkeeping, payroll, VAT and tax compliance, business tax planning, corporate finance advice, and cloud…
Serves businesses and individuals across Cheshire and Staffordshire, including start-ups, contractors, sole traders, partnerships, LLPs, limited companies, landlords, charities, trusts and financial…
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides specialist accountancy and assurance services for pension schemes, including statutory pension scheme audits, accounts preparation and desktop review, AAF and ISAE assurance reports,…
Sells to UK pension schemes and pension advisers, serving trustees and employers needing pension scheme audits, accounts support and assurance reporting. Also targets organisations requiring AAF and…
Financial Health
StrongStrong · Growing, Hiring · 13% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy and taxation services to businesses and individuals, including annual accounts preparation, company audits, management accounts, tax planning and compliance, VAT and corporation…
Serves local business owners, individuals, charities and registered social landlords across central Scotland, especially Lanarkshire, Hamilton, Strathaven, Glasgow and West Lothian.
Financial Health
StrongStrong · Growing, Hiring · 29% CAGR over 5y
Location
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Financial sub-scores
Computed from 5 filingsProvides accounting, auditing, tax advisory, payroll and VAT services to businesses. Also offers business consultancy and corporate finance support, including preparation of accounts, financial…
Serves businesses in Stockport and Greater Manchester, from sole traders to multinational firms, across varied industries needing external accountancy and financial support.
Financial Health
StrongStrong · Hiring · 12% CAGR over 4y
Location
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Computed from 4 filingsProvides accountancy and business advisory services including accounts preparation, tax compliance, grant audits, corporate finance, and business planning. Advises on advanced tax matters such as R&D…
Serves businesses and business owners, including SMEs, solicitors, sports professionals and funding providers, plus private clients needing tax, trusts, estates, succession or retirement planning…
Financial Health
HealthyHealthy · -3% CAGR over 3y
Location
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Computed from 4 filingsProvides audit and assurance, tax advisory including R&D tax claims, bookkeeping, management accounts, payroll processing, and business consultancy services to startups and established companies,…
Serves UK start-ups and established businesses, including SMEs, franchises, micro businesses and other accountancy practices, plus business owners, finance teams and individuals needing…
Financial Health
StrongStrong · Hiring · 122% CAGR over 3y
Location
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Financial sub-scores
Computed from 4 filingsProvides accounting and business advisory services including financial reporting, tax planning and compliance, audit, and outsourced finance functions. Works with businesses and individuals to…
Serves businesses of varying sizes across the UK, selling to company owners and management teams seeking accountancy, business advisory, planning and outsourced finance support.
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 3y
Location
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Computed from 5 filingsProvides audit, accounting and tax advisory services for businesses, charities, owner‑managed companies and individuals. Offers financial reporting, compliance and related accountancy support to help…
Serves owner-managed businesses, corporates and not-for-profit organisations, alongside private individuals and trusts, primarily in Oxfordshire.
Financial Health
HealthyHealthy · -10% CAGR over 4y
Location
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Computed from 4 filingsProvides chartered accountancy services including audit and accounting, business and corporate tax, payroll, management accounts, corporate finance and strategic planning, plus personal tax,…
Serves businesses and private individuals around Macclesfield, Stockport and Manchester, including startups, owner-managed firms and people with personal tax, matrimonial, pension or investment needs.
Financial Health
HealthyHealthy · Hiring · 8% CAGR over 3y
Location
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Computed from 3 filingsProvides accountancy and business advisory services including bookkeeping and cloud accounting, payroll administration, statutory accounts preparation, auditing, and specialist tax planning and…
Sells to businesses and organisations needing accounting support, particularly creative firms, property businesses, charities, engineering and manufacturing companies. Serves UK clients, including…
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides accountancy and financial advisory services including company accounts preparation, tax planning, payroll, bookkeeping and VAT. Also offers management reporting, outsourced finance director…
Sells to businesses needing accountancy and finance support, especially limited companies seeking outsourced FD, tax, payroll, bookkeeping and advisory services. Also serves self-employed people,…
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 4y
Location
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Computed from 5 filingsProvides chartered accountancy and business advisory services, including preparation of accounts, tax planning and compliance, audit, VAT services, and business consultancy for companies and…
Serves businesses seeking accountancy and advisory support, including buyers needing tax, audit, accounts, VAT and business consultancy services. Targets business clients rather than consumers.
Financial Health
StrongStrong · Hiring · 15% CAGR over 4y
Location
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Computed from 4 filingsProvides chartered accountancy services to businesses, including bookkeeping, accounts preparation, payroll, and tax compliance, alongside business advisory, financial planning, and support with…
Serves businesses across Scotland, particularly in Glasgow and Lanarkshire, needing chartered accountancy support for compliance, planning and strategic financial decisions.
Financial Health
StrongStrong · Hiring · 13% CAGR over 3y
Location
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Computed from 5 filingsProvides chartered accountancy services including preparation of year-end accounts, tax planning and compliance, VAT returns, payroll, and business planning. Works with start-ups, growing businesses,…
Serves start-ups, scaling small businesses, charities, social enterprises, consultants, contractors and individuals needing personal tax support, covering both corporate and personal clients.
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
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Computed from 3 filingsProvides accountancy and tax services for businesses and individuals, including accounts preparation, tax compliance, audits, business planning, corporate finance advice, succession planning, R&D tax…
Serves businesses and owner-managers, with specialist support for solicitors, sports professionals, funding providers, and individuals needing tax, trust, estate, succession or retirement planning.
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides accounting and tax services including personal and partnership tax returns, statutory accounts, corporation tax and VAT returns, bookkeeping, payroll, management accounts, tax planning, cash…
Serves individuals, partnerships and small businesses with tax, accounts and payroll requirements, including limited companies needing VAT, corporation tax and Companies House compliance.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
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Computed from 5 filingsProvides accounting and tax services including bookkeeping, payroll processing, VAT and corporate tax planning, R&D tax relief claims, and business advisory. Also offers outsourced finance functions,…
Serves UK businesses, healthcare providers, contractors, property investors, high-net-worth individuals and professionals, with sector focus on GP surgeries, PCN networks, dental practices,…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy and business advisory services for small and medium-sized companies and start-ups, including bookkeeping, payroll, tax compliance, statutory accounts, management accounts,…
Serves small and medium-sized companies and start-ups, including businesses seeking outsourced finance support, cloud/Xero accounting, payroll, tax, forecasting, reporting or growth-stage finance…
Financial Health
StrongStrong · Growing, Hiring · 30% CAGR over 4y
Location
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Computed from 5 filingsProvides accounting and tax services for businesses and individuals, including preparation of accounts, payroll and CIS reporting, VAT returns, pensions auto‑enrolment, company secretarial services,…
Serves UK sole traders, registered companies, business owners and entrepreneurs, alongside individuals and families, including Spanish property owners.
Financial Health
StrongStrong · Growing, Hiring · 5% CAGR over 4y
Location
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Computed from 4 filingsProvides accounting and tax advisory services including annual accounts, bookkeeping, payroll, VAT returns and self‑assessment. Offers management accounts, forecasting, business planning, valuations,…
Serves small businesses, sole traders and growth-stage companies, plus residential managing agents, charities and non-profits. Also targets individuals needing tax return and tax planning support.
Financial Health
StrongStrong · Growing, Hiring · 9% CAGR over 3y
Location
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Computed from 3 filingsProvides accountancy and tax advisory services for individuals and businesses, including preparation of financial statements, bookkeeping system setup and software support, payroll and CIS…
Serves individuals, self-employed people, partnerships and companies in the UK and overseas needing accounting, compliance, payroll and tax advisory support.
Financial Health
StrongStrong · Hiring · 12% CAGR over 2y
Location
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Computed from 5 filingsProvides accounting and bookkeeping services for businesses, including tax preparation, management accounts, payroll administration, and financial systems consultancy. Supports owner‑managed…
Serves owner-managed businesses, startups and established SMEs across varied sectors, including limited company owners seeking ongoing finance and compliance support.
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 4y
Location
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Computed from 4 filingsProvides chartered accountancy and tax advisory services for businesses and individuals, including preparation of financial accounts, tax returns, payroll management, bookkeeping, and business…
Serves businesses from small start-ups to established multinational groups, plus individual taxpayers, with a stated client base across the West Midlands and beyond.
Financial Health
HealthyHealthy · Hiring · 9% CAGR over 3y
Location
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Computed from 3 filingsProvides accountancy and business advisory services, including accounts preparation, corporation and personal tax returns, VAT, payroll, management accounting, financial forecasting, business…
Serves start-ups, growing businesses and individuals across Oxfordshire and nationwide, with sector focus on leisure, hospitality, music, professional services, property, construction, science,…
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 2y
Location
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Computed from 5 filingsProvides outsourced accounting, bookkeeping and finance director services for SMEs, including tax planning, R&D tax credit claims, EMI scheme support and corporate finance advisory. Works with…
Serves UK startups, scaling SMEs and established businesses, especially technology and SaaS firms, video game studios, media and entertainment companies, retail/e-commerce brands, and professional or…
Financial Health
StableStable · Hiring · 8% CAGR over 4y
Location
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Computed from 4 filingsProvides chartered accountancy services to businesses, including accounts preparation, tax compliance, financial reporting, and business advisory support, assisting clients with day-to-day…
Serves Scottish SMEs, owner-managed businesses and company directors, particularly in Glasgow and Lanarkshire, seeking accountancy support for day-to-day compliance, planning and strategic financial…
Financial Health
StrongStrong
Location
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Computed from 3 filingsProvides accountancy and business advisory services including preparation of business accounts, bookkeeping, corporate tax, VAT and payroll support, personal tax returns, and financial planning such…
Serves individuals and organisations, including limited companies, sole traders, start-ups, family and owner-managed businesses, farms, manufacturers, construction firms, trades, partnerships, trusts…
Financial Health
HealthyHealthy · -3% CAGR over 2y
Location
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Computed from 4 filingsProvides accountancy services for small and owner‑managed businesses, including bookkeeping, accounts preparation, tax compliance, and business advice. Offers tiered service packages with regular…
Serves small and owner-managed businesses in Suffolk, particularly business owners seeking support at compliance, regular advisory, or strategic planning levels.
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 3y
Location
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Computed from 5 filingsProvides accounting services for businesses including bookkeeping, preparation of year‑end accounts, tax compliance and advisory, and financial planning. Also offers business planning and financial…
Serves small and growing businesses across the UK, including limited companies, partnerships and sole traders. Targets business owners across all industries.
Financial Health
StableStable · -5% CAGR over 4y
Location
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Computed from 5 filingsProvides accounting and tax services for businesses, including statutory accounts preparation, bookkeeping, payroll processing, management accounts, tax planning and compliance, new business setup…
Serves businesses and entrepreneurs, including sole traders, partnerships, LLPs and limited companies, primarily around Reading/Berkshire and London, plus employers using payroll/CIS and owners…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy services for individuals and businesses, including bookkeeping, preparation of accounts, tax advice and support with online accounting systems. Works with clients across sectors…
Serves individuals, sole traders and SMEs across the North West, including manufacturing firms, recruitment agencies, software firms, hospitality businesses, contractors, construction/CIS trades,…
Financial Health
HealthyHealthy · Hiring · 4% CAGR over 4y
Location
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Computed from 3 filingsProvides chartered accountancy services to businesses and individuals, including tax planning and compliance, financial accounts preparation, business advisory, and support for start‑ups, sole…
Serves B2B and individual clients, including Scottish businesses, start-ups, sole traders, local enterprises and high-net-worth individuals, primarily across Ayrshire with remote clients further…
Financial Health
StableStable · -11% CAGR over 2y
Location
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Computed from 5 filingsProvides accounting and tax services along with financial and business advisory support. Assists businesses and individuals with tax compliance, financial management, and general business advice…
Serves local businesses and individual clients in Bournemouth and Dorset.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy and management accounting services for businesses, including bookkeeping, payroll, preparation and submission of accounts and tax returns, financial reporting, forecasting and…
Serves SMEs and owner-managed businesses, including company directors and finance teams, that use cloud accounting technology and want an external accountant as part of their team.
Financial Health
StableStable · Hiring · 4% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy services for businesses, including preparation and filing of statutory accounts, tax-related compliance support, and payroll outsourcing. Offers online enquiry and onboarding for…
Serves UK small businesses, limited companies and sole traders, targeting business owners and managers who need outsourced help with company accounts, payroll and tax compliance.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides accountancy and corporate finance services for small and medium-sized businesses, including statutory and management accounts, tax and VAT compliance, payroll and bookkeeping, as well as…
Serves small and medium-sized businesses and owner-managers in the North East, especially companies planning growth, acquisitions, fundraising, retirement or sale.
Financial Health
StrongStrong · Hiring · 26% CAGR over 4y
Location
Buy this list of 256 companies
The complete list in one Excel/CSV file — company details, websites and key data. Yours to download and use.
206 more companies and their verified directors are in the file
You’re seeing the top 50. Buy the list to get all 256 with directors, websites and financials.
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. 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.
Site Kit 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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