Accounting Companies Using Cloudflare in the UK: 945 Active Firms (2026)
Accounting firms using web security and performance technology provide audit, tax and advisory services across the UK.
For audit, tax and advisory practices, the web edge layer sits close to the buying journey: proposal downloads, sector briefings, recruitment pages, client portals and event registrations all depend on the public site staying reachable and clean. Adoption tends to signal a practice with centralised marketing operations, some in-house web or IT capability, and compliance teams attentive to phishing, bot traffic and client confidentiality. The buying centre is usually split between marketing, IT and risk, rather than owned by a single software team.
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UK adoption in accounting and audit comprises 945 companies running this stack. Within detected CDN usage for the sector, it ranks at the head of the comparison at 90.9%, with the next infrastructure categories much smaller in share. Registered office locations skew towards London at 27.1%, followed by the South East at 14.2% and the North West at 12.1%. Reported employment across the cohort totals 2,842 roles, giving the adoption picture some substance beyond micro-practice website maintenance.
Statutory audit gives the accounting cohort a regulatory overlay that many web-technology adopters in other professional services do not face. The FRC is the Competent Authority for public supervision of UK statutory auditors, while audit registration and supervision run through recognised supervisory bodies; audit qualifications are handled through recognised qualifying bodies. For firms running an external security and performance layer, procurement therefore tends to involve more than uptime. Website forms, client-facing login journeys, analytics tags and content-management access all sit near GDPR, professional confidentiality and audit-quality expectations.
Adoption appears likely to remain tied to direct-channel maturity rather than fashion. Accountancy practices with national client acquisition, frequent technical publishing and recruitment-heavy websites tend to keep an edge security layer in place, while smaller practices may rely on bundled hosting arrangements until a site rebuild or compliance review prompts change. Consolidation in statutory audit should keep procurement centralised among multi-office groups, but stack choice may also be shaped by agencies, managed-service providers and insurer expectations around breach prevention.
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 Cloudflare rises with company size across the trading UK accounting companies in this cohort. 2% of the 34,652 companies with under 10 employees run Cloudflare (676 detected). 21.4% of the 1,209 companies with 10–50 employees run Cloudflare (259 detected). 25% of the 60 companies with over 50 employees run Cloudflare (15 detected). That is a 23% gap between the over 50 employees and under 10 employees bands.
945
Active firms
2026
90.9%
Of detected CDN share
UK accounting
6
Median headcount
Filed accounts
1,996
Verified directors
Across this cohort
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Key facts
About 1% of the trading cohort reports turnover above £5M (16 of 945 firms) — the rest sits below that revenue band.
4% of the cohort was incorporated since 2022 (41 firms), so a sizeable share is in its first few filing cycles.
Within accounting and audit, the detected CDN category is concentrated: one system is present at 90.9% (945) of the 1,040 companies with a detectable system, while the next largest option is at 8.5% (88).
London accounts for 27.1% (256) of accounting and audit firms running this technology, followed by the South East at 14.2% (134) and the North West at 12.1% (114).
Publishing and measurement tools often sit alongside the CDN layer: 53.4% (505) also run a publishing platform, 44.7% (422) analytics tooling and 42.1% (398) tag-management tooling.
Statutory audit is a regulated activity: the FRC is the Competent Authority under the Statutory Auditors and Third Country Auditors Regulation 2016, with registration and supervision routed through four Recognised Supervisory Bodies.
Registered statutory audit firms fell to 3,760 in 2024 from 5,007 in 2020, a 24.9% decline over five years; the count also fell 6.9% in 2024 from 4,038 firms in 2023.
CDN market share among UK Accounting
Share of the 1,040 UK Accounting with a detectable system. As of June 2026.
What else do Cloudflare-running Accounting run?
Share of the 945 Cloudflare-running UK companies where each technology was also detected. As of June 2026.
Where Cloudflare 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
£300.1K
Median UK turnover
1.7%
Above £5M turnover
41
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 1,619 companies, alongside financials and websites, in one CSV file.
Top UK Accounting using Cloudflare
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
Financial sub-scores
Computed from 5 filingsProvides accounting, audit and assurance, tax advisory, corporate finance, restructuring, risk and regulatory consulting services. Also offers business outsourcing, forensic and digital advisory to…
Serves businesses from startup to exit, entrepreneurs, families and business owners, plus charities, public sector bodies, financial services, fintech, hospitality, manufacturing, real estate,…
Financial Health
StrongStrong
Location
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Financial sub-scores
Computed from 5 filingsOperates an international network of independent accounting and advisory firms. Provides audit and assurance, tax, accounting, corporate finance, restructuring, ESG consulting, outsourcing, and risk…
Serves businesses, charities and private clients operating internationally, across sectors including finance, energy, healthcare, real estate, construction, technology, media and telecoms.
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides accountancy and business advisory services including audit, tax planning, corporate finance, outsourced accounting, payroll, financial planning, restructuring and insolvency advice, HR…
Serves commercial and nonprofit organisations, owner-managed and large corporate businesses, family businesses, professional firms and private clients across sectors including charities, education,…
Financial Health
StrongStrong · Hiring · 3% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides accountancy and professional advisory services including audit and assurance, tax planning, corporate finance, business advisory, insolvency and recovery, forensic accounting, and support…
Serves businesses, public sector bodies, charities and private clients across sectors including financial services, technology, real estate, retail, manufacturing, healthcare, energy, transport and…
Financial Health
HealthyHealthy · 4% CAGR over 2y
Location
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Financial sub-scores
Computed from 2 filingsProvides audit and assurance, accounting, tax compliance, and business advisory services. Offers corporate finance, restructuring, payroll, outsourced accounting, and wealth and tax planning services…
Serves growth-focused UK businesses and organisations across agribusiness, automotive, real estate, education, energy, financial services, healthcare, manufacturing, not-for-profit, retail,…
Financial Health
HealthyHealthy · -5% CAGR over 1y
Location
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Financial sub-scores
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 5 filingsProvides accountancy and professional advisory services including audit, financial reporting, tax advisory, corporate finance, and business recovery. Advises businesses on compliance, transactions,…
Serves mid-market businesses and their owners, finance leaders and management teams needing professional advisory support across audit, accounting, tax, corporate finance and business recovery.
Financial Health
HealthyHealthy · -67% CAGR over 4y
Location
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Financial sub-scores
Computed from 4 filingsProvides accountancy and business advisory services including audit and assurance, corporate and private tax planning, payroll, outsourcing and digital accounting, corporate finance and fundraising…
Serves entrepreneurs, owner-managed businesses and other organisations needing accountancy, tax, audit and corporate finance support, plus private clients. Case studies indicate mid-sized companies…
Financial Health
StrongStrong
Location
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Financial sub-scores
Computed from 3 filingsProvides accounting advisory and financial consulting services including technical accounting, financial reporting, transaction advisory, valuation, tax, treasury, forensic accounting, risk and…
Serves B2B finance leaders and private equity firms, especially CFO offices, across business services, consumer, energy, financial services, healthcare, life sciences, manufacturing, media, real…
Financial Health
StrongStrong · Hiring · 213% CAGR over 2y
Location
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Financial sub-scores
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 5 filingsProvides accountancy and financial advisory services including company accounts preparation, business audits, tax compliance and planning, bookkeeping, payroll, corporate finance, business…
Serves startups, SMEs and international groups across the UK and internationally, including listed companies, UK subsidiaries, charities and businesses in technology, retail/hospitality, property,…
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 4y
Location
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Computed from 3 filingsProvides accountancy and advisory services including audit, financial reporting, outsourced accounting, payroll, and tax planning and compliance. Also offers wills and probate, corporate finance,…
Serves B2B and nonprofit clients, including owner-managed SMEs, start-ups, family businesses, mid-market and private equity-backed companies, medical practices, solicitors, charities, pension schemes…
Financial Health
HealthyHealthy · 3% CAGR over 2y
Location
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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
Location
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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,…
Financial Health
HealthyHealthy · Growing, Hiring · 6% CAGR over 2y
Location
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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
Location
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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 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…
Financial Health
HealthyHealthy · Profitable, Hiring · 6% CAGR over 2y
Location
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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
Location
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Computed from 3 filingsProvides accounting, audit and assurance, tax advisory, and financial reporting services. Supports businesses with financial management, compliance with HMRC and statutory requirements, company…
Serves UK fast-growing businesses and global inbound companies setting up in the UK, across sectors such as retail and manufacturing, plus corporate and personal clients needing finance support.
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 2y
Location
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Computed from 5 filingsProvides company secretarial and corporate governance services including Companies House filings, identity verification, annual compliance, and registered office support. Also offers accounting, tax…
Serves B2B clients including funds, law firms, large corporates, overseas companies, listed and AIM-listed businesses, and financial institutions needing UK corporate compliance, governance and…
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
Location
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Computed from 5 filingsProvides financial reporting, governance and capital markets advisory to UK listed and IPO‑bound companies, including IFRS technical support, valuation and transaction advice, company secretarial…
Serves UK public companies listed on the London Stock Exchange or AIM, plus growing private companies preparing for IPO. Targets boards, finance leaders and governance teams in listed-company…
Financial Health
StrongStrong · Growing, Hiring · 23% 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 chartered accountancy and financial advisory services, including audit, accounts preparation, tax planning, restructuring and insolvency support, corporate finance and deal advisory, and…
Serves UK businesses, company directors, finance directors, accountants, partnerships, sole traders, individuals and creditors, with clients across leisure and hospitality, retail, construction and…
Financial Health
StrongStrong · Hiring · 12% CAGR over 4y
Location
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Computed from 5 filingsProvides chartered accountancy services including statutory audits, tax planning and compliance, financial reporting, and business advisory support. Works with businesses on bookkeeping, accounts…
Serves startups and established businesses across varied sectors, primarily SMEs seeking a long-term accountancy partner for compliance, audit, tax and advisory needs.
Financial Health
StrongStrong · Growing, Hiring · 30% CAGR over 4y
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 5 filingsProvides accountancy and financial advisory services to businesses and individuals, including bookkeeping, audit and assurance, tax planning, payroll, company secretarial services, corporate finance,…
Serves business owners, limited companies and individuals in the UK and internationally, with sector focus on construction, hospitality, property landlords, restaurants, manufacturing, e-commerce,…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
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Computed from 3 filingsProvides tax, accounting, assurance and advisory services to individuals, startups and businesses. Services include statutory audits, corporate and international tax, VAT and R&D tax relief advice,…
Serves individuals, startups, small businesses and companies with cross-border UK-US operations, M&A activity, or audit, tax and reporting obligations.
Financial Health
HealthyHealthy · Hiring · 37% CAGR over 2y
Location
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Computed from 5 filingsProvides tax, accounting, assurance and advisory services. Offers statutory audits, corporate and international tax advice, VAT and individual tax compliance, valuation services, financial reporting…
Serves individuals, startups and small businesses, as well as companies with cross-border UK-US operations, M&A activity, reporting, valuation or compliance needs.
Financial Health
StrongStrong · Hiring · 28% CAGR over 4y
Location
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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.
Financial Health
HealthyHealthy · Growing, Hiring · 19% CAGR over 3y
Location
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Computed from 3 filingsProvides chartered accountancy and business advisory services including bookkeeping, year‑end and management accounts, statutory audits, VAT, payroll processing, and corporate and personal tax…
Serves SMEs, corporate clients, healthcare providers, property services firms, solicitors, charities and private clients, primarily around Birmingham and the Midlands.
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 2y
Location
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Computed from 5 filingsProvides accounting, payroll, tax, HR and compliance services for businesses operating internationally. Supports companies expanding into new markets through outsourced back‑office functions,…
Serves B2B customers expanding internationally, including first-time exporters, investors managing portfolio companies, and established businesses entering new markets across multiple countries.
Financial Health
StrongStrong · Hiring · 6% CAGR over 4y
Location
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Computed from 5 filingsProvides chartered accountancy services including bookkeeping, management accounts, payroll, tax planning and compliance, statutory and regulatory audits, and business advisory support. Also assists…
Serves UK growth businesses, charities and not-for-profits, including clients in construction, professional services, hospitality, healthcare, social care, property, retail and technology.
Financial Health
StableStable · -67% CAGR over 4y
Location
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Computed from 3 filingsProvides accounting and tax advisory services for businesses and individuals, including bookkeeping, VAT returns, payroll processing, statutory audits, and business start‑up support. Also advises on…
Serves UK businesses and individuals, with specialist focus on architects, construction and property developers, consultants, day nurseries, IFAs, online retailers, publishers, recruiters, law firms…
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 2y
Location
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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
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Computed from 5 filingsProvides accountancy and business advisory services including bookkeeping, year-end accounts, audit, tax planning and compliance, payroll, cloud accounting, corporate finance advice, funding support,…
Serves established owner-managed and family businesses across Yorkshire, typically £500k-£5m+ turnover, including manufacturing, professional services, agriculture and retail firms.
Financial Health
StrongStrong · -2% CAGR over 3y
Location
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Computed from 3 filingsProvides chartered accountancy and business advisory services including auditing, financial accounting, payroll, outsourced accounting, corporate and personal tax planning, VAT advice, tax…
Sells to owner-managed businesses and business owners seeking accounting, tax and advisory support, including startups, growing companies, firms pursuing acquisitions or exits, and voluntary,…
Financial Health
StrongStrong · 4% CAGR over 1y
Location
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Computed from 2 filingsProvides accountancy services to businesses, including bookkeeping, payroll, year‑end accounts preparation, audit and assurance, tax and VAT returns, and financial planning. Also advises on business…
Serves businesses of all sizes across Yorkshire, from small companies to larger organisations, plus individual clients seeking personal tax and financial planning advice.
Financial Health
StableStable · 0% CAGR over 1y
Location
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Computed from 5 filingsProvides accounting and business advisory services including tax planning and compliance, audit and assurance, bookkeeping, payroll, VAT support, R&D tax credit claims, and strategic advice for…
Serves individual clients, local business owners, SMEs, growing businesses and larger corporations in Oxfordshire and beyond, including owner-managed companies and sectors with R&D, merger or…
Financial Health
HealthyHealthy · -66% CAGR over 4y
Location
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Computed from 4 filingsProvides accountancy services for individuals and businesses, including financial accounting, statutory audits, tax return preparation, and tax compliance support. Advises on financial and regulatory…
Serves a mix of private individuals and companies of all sizes, including clients needing personal tax support, audit services, trust-related advice, and construction-sector compliance guidance.
Financial Health
StrongStrong · Hiring · 14% CAGR over 3y
Location
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Computed from 4 filingsProvides accountancy and tax advisory services including bookkeeping, payroll management, VAT returns, budgeting and cashflow planning, tax planning, company secretarial services, and setup and…
Serves UK businesses of all sizes, from small employers to organisations with up to 1,000 staff, whose owners or finance teams need regular accounting and tax support.
Financial Health
StrongStrong · -3% CAGR over 3y
Location
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Computed from 4 filingsProvides accounting and business advisory services including tax compliance, management reporting, business structuring, transaction support, mergers and acquisitions advice, and succession planning…
Serves business owners and privately held companies at start-up, growth, expansion and succession stages, including firms preparing for mergers, acquisitions or strategic sale.
Financial Health
StrongStrong · Hiring · 30% CAGR over 3y
Location
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Computed from 5 filingsProvides chartered accountancy and audit services, including preparation of financial statements, management accounts and bookkeeping. Offers tax advice and personal tax planning, payroll and…
Serves owner-managed and family businesses, start-ups and established companies across Shropshire, the UK and internationally, alongside private clients with personal, family or succession needs.
Financial Health
StrongStrong · Growing, Hiring · 5% CAGR over 4y
Location
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Computed from 4 filingsProvides accounting, tax compliance, and business advisory services to farms, rural businesses, property and tourism enterprises, and private clients. Also supports digital tax reporting and cloud…
Serves farming and agricultural businesses, rural enterprises, land, property and tourism operators, general businesses, and private clients across the UK.
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 3y
Location
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Computed from 5 filingsProvides accounting and audit services, tax planning and compliance for businesses and individuals, bookkeeping and payroll, business and tax advisory, and support with wealth management, wills and…
Serves businesses and business owners needing accounting, audit, payroll and tax support, plus individual clients seeking personal tax, wealth, wills and probate advice, including self-employed…
Financial Health
StrongStrong · Growing, Hiring · 4% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy and tax services for small and medium-sized businesses and individuals, including bookkeeping, financial statements, payroll, VAT, corporation and personal tax returns, audit,…
Serves SMEs, e-commerce retailers and wholesalers, contractors, hospitality firms, healthcare practices, charities, landlords and individuals, mainly in London and the Home Counties.
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 4y
Location
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Computed from 5 filingsProvides chartered accountancy services including preparation of year-end and management accounts, bookkeeping, payroll and VAT returns, and tax planning. Also delivers statutory audits, business…
Serves business owners and limited companies, including organisations requiring statutory audits or solicitors’ reports, as well as individuals with self-assessment and personal tax needs.
Financial Health
StrongStrong · Growing · 1% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy and business advisory services including audit, tax planning and compliance, payroll, bookkeeping, management accounts, and support for business start-ups, serving owner-managed…
Serves B2B and personal clients across the Midlands, including overseas subsidiaries, owner-managed businesses, self-employed individuals and start-ups seeking accountancy support.
Financial Health
StrongStrong · Growing, Hiring · 6% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides accountancy and tax advisory services for businesses and individuals, including accounts preparation, audit, bookkeeping, payroll, VAT returns, tax planning, self‑assessment, company…
Serves businesses and individuals in Doncaster and South Yorkshire, including start-ups, owner-managed businesses, growing companies, business buyers or exiting owners, and personal tax clients.
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides accountancy and business advisory services including annual accounts, bookkeeping, payroll, management accounts, and cloud accounting. Offers tax services such as VAT, self‑assessment and…
Serves VAT-registered businesses across England, from ambitious start-ups to established national companies, targeting business owners across sectors who need accountancy, tax, finance and business…
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 4y
Location
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Financial sub-scores
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
Location
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How Cloudflare 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.
Cloudflare 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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