Accounting Companies Using All in One SEO in the UK: 136 Active Firms (2026)
Accounting firms using SEO software provide audit, accounts and advisory services while managing search visibility on UK public websites.
For accountancy practices, a detected SEO optimisation plugin usually sits in the website layer: it structures page titles, service metadata, sitemaps and search snippets for audit, tax, payroll and advisory pages. Adoption tends to signal a practice with a maintained public site, a direct enquiry route and at least some internal or agency capacity for content upkeep. The buying centre is often practice management or a marketing partner rather than IT alone, since the tool affects how service lines, local office pages and sector propositions are presented to prospective business clients.
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Across the UK, 136 accounting and audit practices are currently detected running this SEO tool. Reported employment totals 1,389 staff, with headcount present for 114 of 114 firms that report it. Within accounting and audit SEO-tool adoption, the system sits third at 9.0%, behind alternatives at 78.0% and 12.1%. The regional skew is London at 25.0%, followed by the North West and East of England at 13.2% each, the South East at 12.5%, and the West Midlands at 9.6%. That points to a small, practice-led adoption base rather than a broad enterprise-software footprint.
Statutory audit remains the regulatory anchor for this market, even where a practice’s website is mainly used for tax, accounts and advisory acquisition. The FRC is the Competent Authority for public supervision of UK statutory auditors, with audit firms registered and supervised through Recognised Supervisory Bodies including ACCA, Chartered Accountants Ireland, ICAEW and ICAS. Website tooling therefore sits beside a more formal professional-services regime: claims about audit scope, regulated status, qualifications and sector specialisms need to be maintained with the same care as service pages and enquiry forms.
Adoption appears tied less to experimental marketing than to routine upkeep of public-facing professional-services sites. Smaller practices tend to use plugin-based search tooling because it fits agency-managed websites and local service-page work; larger multi-office firms are more likely to fold search governance into wider content, brand and compliance processes. The category may remain fragmented, with switching shaped by website rebuilds rather than standalone procurement. For researchers, the useful signal is not technical sophistication on its own, but whether a practice is investing in direct-channel visibility while operating inside a regulated accountancy environment.
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 All in One SEO varies by company size across the trading UK accounting companies in this cohort. 0.3% of the 34,652 companies with under 10 employees run All in One SEO (113 detected). 1.8% of the 1,209 companies with 10–50 employees run All in One SEO (22 detected). 0% of the 60 companies with over 50 employees run All in One SEO (0 detected). That is a 0.3% gap between the over 50 employees and under 10 employees bands.
136
Active firms
2026
9%
Of detected SEO share
UK accounting
5
Median headcount
Filed accounts
240
Verified directors
Across this cohort
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Key facts
8% of the cohort was incorporated since 2022 (11 firms), so a sizeable share is in its first few filing cycles.
Among accounting firms with a detectable SEO system, the detected SEO tool accounts for 9.0% (136) of the 1,507-company denominator, ranking third behind two alternatives at 78.0% (1,176) and 12.1% (182).
The cohort is tied to one website publishing platform, with 100.0% (136) of these accounting firms also running that platform.
Measurement and enquiry tooling is present across much of the stack: web analytics appears on 54.4% (74), bot protection on 48.5% (66) and contact-form software on 42.6% (58).
London accounts for 25.0% (34) of accounting users, followed by the North West and East of England at 13.2% (18) each.
Statutory audit is a regulated activity, with the FRC designated as Competent Authority under the Statutory Auditors and Third Country Auditors Regulation 2016 and four Recognised Supervisory Bodies handling registration and supervision.
SEO market share among UK Accounting
Share of the 1,507 UK Accounting with a detectable system. As of June 2026.
What else do All in One SEO-running Accounting run?
Share of the 136 All in One SEO-running UK companies where each technology was also detected. As of June 2026.
Where All in One SEO 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.
5
Median headcount
£222.3K
Median UK turnover
0%
Above £5M turnover
11
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 216 companies, alongside financials and websites, in one CSV file.
Top UK Accounting using All in One SEO
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 accounting and business advisory services including accounts preparation, audit and assurance, corporate finance, personal and corporate tax advice, outsourcing and support for businesses,…
Serves businesses, business owners, individuals and not-for-profit organisations needing accounting, tax, audit, assurance and corporate finance support, including startups and those buying, selling…
Financial Health
StrongStrong · Growing · 4% CAGR over 2y
Location
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Financial sub-scores
Computed from 3 filingsProvides accountancy, audit, and tax planning services for businesses and individuals. Offers financial reporting, management accounts, compliance support, and business advisory services, including…
Serves businesses and individuals in Cardiff and South Wales, from sole traders and owner-managed SMEs to larger companies, plus personal tax clients.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides chartered accountancy services including audit and assurance, statutory accounts, tax compliance and advisory, payroll, and cloud accounting. Also offers corporate finance, business…
Serves SMEs, startups, partnerships, charities, private clients and high-net-worth or non-domiciled individuals, plus sector clients in property, healthcare, manufacturing, financial services,…
Financial Health
StrongStrong · Hiring · 32% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsProvides accountancy, audit and assurance, tax, payroll, and wealth management services. Advises SMEs, charities, education organisations, rural businesses, startups, and individuals on financial…
Serves SMEs across sectors in the North West, sixth form colleges and multi-academy trusts, Cheshire charities and not-for-profits, rural farmers and landowners, business start-ups, and individuals.
Financial Health
StableStable · 0% CAGR over 2y
Location
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Financial sub-scores
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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Financial sub-scores
Computed from 3 filingsProvides chartered accountancy services including audit, company accounts preparation, tax compliance and planning, payroll and P11D processing, personal tax returns, company secretarial services,…
Serves start-ups, established businesses and individual taxpayers, predominantly in the Black Country and Worcestershire, needing accountancy, tax, payroll, audit and business planning support.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 2y
Location
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Financial sub-scores
Computed from 5 filingsProvides accounting, tax and advisory services with a focus on travel and leisure businesses. Services include statutory audits, payroll, company secretarial support, management accounts, corporate…
Serves B2B clients in the travel and leisure sector, from startups to established businesses, including UK and EEA tour operators and regulated travel companies.
Financial Health
HealthyHealthy · Hiring · 9% CAGR over 4y
Location
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Financial sub-scores
Computed from 4 filingsProvides accountancy and business consultancy services including bookkeeping, accounting support, audit, and tax planning and compliance. Offers business advisory, wealth planning, and international…
Serves SMEs and owner-managed businesses, particularly in healthcare, property, scale-up technology and international trading, plus business owners and families seeking personal tax and wealth advice.
Financial Health
StableStable · -13% CAGR over 3y
Location
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Provides chartered accountancy and advisory services including audit and assurance, tax compliance and planning, corporate finance, business advisory, payroll, insolvency and restructuring, forensic…
Serves UK businesses, LLPs, partnerships, sole traders, charities and private clients, with sector focus including farming, financial services, healthcare, hospitality, manufacturing, property,…
Financial Health
N/AN/A
Location
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Financial sub-scores
Computed from 5 filingsProvides accountancy and tax services including accounts preparation, self‑assessment and corporation tax returns, VAT, capital gains and inheritance tax advice. Offers audit and assurance,…
Serves individuals, start-ups and SMEs across North and Mid Wales, including farms, caravan parks, hotels, guest houses and B&Bs, plus limited companies.
Financial Health
StrongStrong · Growing · 2% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides accountancy and business advisory services including bookkeeping, payroll, year-end accounts, audit and assurance, tax and VAT returns, and financial planning. Also offers cloud accounting,…
Serves small and large businesses across Yorkshire, including firms in Harrogate, Leeds and Skipton, plus business owners and individuals seeking accountancy, tax and financial planning support.
Financial Health
StrongStrong
Location
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Financial sub-scores
Computed from 5 filingsProvides chartered accountancy services including accounts preparation, management accounts, auditing, bookkeeping, VAT, payroll, and company secretarial support. Advises businesses and individuals…
Serves businesses and individuals needing accountancy and tax support, particularly organisations across sectors such as manufacturing, retail, construction, not-for-profit, legal, medical,…
Financial Health
StableStable · 0% CAGR over 4y
Location
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Provides accountancy and audit services along with tax compliance, payroll, wealth management and business advisory. Works with SMEs, education organisations, charities, rural businesses, start-ups…
Serves SMEs across sectors, sixth form colleges and multi-academy trusts, charities and not-for-profits, rural businesses such as farmers and landowners, business start-ups, and individuals, mainly…
Location
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Financial sub-scores
Computed from 5 filingsProvides chartered accountancy services to individuals, businesses and schools. Offers accounts preparation, bookkeeping, tax planning and returns, VAT advice, audit and assurance, company…
Serves individuals, landlords, startups, established businesses, schools and academies seeking accountancy and tax support, primarily around Blackburn, Kendal and Preston.
Financial Health
StrongStrong
Location
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Financial sub-scores
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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Financial sub-scores
Computed from 5 filingsProvides accounting, audit and assurance, tax compliance, and advisory services to businesses and individuals. Also offers business advisory support, guidance on tax policy changes, and resources for…
Serves businesses, entrepreneurs and owner-managed companies in Northern Ireland, from start-ups to growing established organisations.
Financial Health
StableStable · Hiring · 3% CAGR over 4y
Location
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Computed from 3 filingsProvides accounting and tax services for sole traders, partnerships and limited companies, including accounts preparation, personal and corporate tax returns, tax planning, statutory and…
Serves individuals, sole traders, business partnerships, limited companies, corporate entities and statutory regulated bodies in the Cheltenham area that require chartered accountancy and audit…
Financial Health
StrongStrong · Hiring · 183% CAGR over 2y
Location
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Provides accountancy and tax services for businesses and individuals, including accounts preparation, auditing, bookkeeping, payroll, VAT returns, corporation tax, and personal tax returns. Also…
Serves individuals and SMEs in Mid Wales, including owner-managed businesses, companies needing audit or compliance support, and clients seeking personal tax planning advice.
Financial Health
N/AN/A
Location
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Financial sub-scores
Computed from 3 filingsProvides accountancy and tax advisory services for businesses and individuals, including financial accounts preparation, audit and assurance, bookkeeping, payroll, VAT and corporate tax support,…
Serves start-ups, established business owners and companies in Peterborough, Cambridgeshire and surrounding areas, plus individual taxpayers needing accountancy and tax support.
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides accounting and financial management services including bookkeeping, VAT returns, payroll, statutory accounts, corporation tax, cashflow forecasting and management reporting, plus advice on…
Serves B2B clients in the creative industries, particularly animation, video game, film and TV studios, plus business owners needing finance support from bookkeeping through board-level input.
Financial Health
StrongStrong · Hiring · 26% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides accounting and tax services for businesses and individuals, including bookkeeping, management accounts, corporate tax, VAT compliance, payroll, pensions auto‑enrolment, company secretarial…
Serves small and medium-sized businesses, self-employed professionals, contractors, landlords, expats and high net worth individuals needing accounting and tax support.
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
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Computed from 3 filingsProvides accountancy and tax services for businesses and individuals, including bookkeeping, payroll, audit, company formation, corporate tax planning, VAT support, and self‑assessment. Also advises…
Serves small and owner-managed businesses, sole traders, landlords, contractors, startups, charities and professional clients, plus individuals needing personal tax support, with in-person coverage…
Financial Health
StableStable · 0% CAGR over 2y
Location
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Provides accountancy, audit, bookkeeping and payroll services alongside corporate and personal tax planning, VAT, and self‑assessment support. Also offers business advisory, company secretarial…
Serves UK and UAE businesses, startups and company owners, plus individuals with personal tax or estate needs, including clients expanding overseas or setting up businesses in either market.
Financial Health
N/AN/A
Location
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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
Location
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Computed from 5 filingsProvides accounting and bookkeeping services for small businesses, sole traders and limited companies, including payroll, VAT returns, tax planning, year‑end accounts and self‑assessment. Also offers…
Serves businesses and self-employed clients, including start-ups, SMEs, sole traders, limited companies and partnerships. Targets organisations needing accounting support, with emphasis on clients in…
Financial Health
StrongStrong · Hiring · 50% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy and financial advisory services including year‑end accounts preparation, tax compliance and returns, bookkeeping, management accounts, payroll processing, financial performance…
Serves small businesses, startups and growing companies, plus individual taxpayers, seeking personal, fixed-fee accountancy support.
Financial Health
HealthyHealthy · Hiring · 37% CAGR over 4y
Location
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Financial sub-scores
Computed from 4 filingsProvides accounting and tax advisory services for individuals and businesses, including VAT returns, corporation tax, self-assessment, payroll, bookkeeping, management and statutory accounts, company…
Serves individuals, high-net-worth clients, landlords, expatriates/non-doms, and SMEs across the UK, including property, construction, ecommerce, logistics, hospitality, healthcare, education, legal…
Financial Health
StrongStrong
Location
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Computed from 5 filingsProvides accountancy and business advisory services including accounts production, bookkeeping, VAT returns, payroll management, and virtual finance director support. Advises businesses on budgeting,…
Serves B2B clients ranging from start-ups to multi-million-pound turnover companies, with emphasis on SMEs and mid-tier firms seeking long-term finance and accounting partners.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
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Provides chartered accountancy and business advisory services including tax planning, capital allowances, payroll, credit management, outsourced finance director support, financial investigations,…
Serves businesses, company directors and private individuals, including construction firms and clients with UK or Gibraltar tax, finance, payroll, credit management and outsourcing requirements.
Financial Health
N/AN/A
Location
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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
Location
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Computed from 5 filingsProvides accountancy and tax advisory services for businesses and individuals, including tax compliance and planning, personal tax returns, cloud bookkeeping, management accounts, finance director…
Serves business owners and limited companies in Surrey and Caterham, including firms at startup, growth, acquisition or succession stages, plus individuals with personal tax needs.
Financial Health
StrongStrong · Growing, Hiring · 8% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy and business advisory services including accounts preparation and compliance, tax planning, payroll services, cloud accounting and Xero support, corporate finance advice, and…
Serves businesses and entrepreneurs, including start-ups, growth-stage companies and owners seeking funding, investment or exit, plus employers needing ongoing finance and payroll support.
Financial Health
HealthyHealthy · -66% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides accounting and tax services to businesses, including accounts preparation, bookkeeping, payroll processing, VAT returns, tax planning, company formation, and company secretarial and…
Serves small businesses and limited companies needing ongoing accountancy support, including new companies, clients switching accountants, and existing business owners with statutory and tax…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
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Computed from 4 filingsProvides accountancy and tax advisory services including statutory accounts, bookkeeping, VAT returns, management accounts, payroll and pension administration. Also prepares personal and corporate…
Serves businesses across all industry sectors in Sussex and surrounding areas, including limited companies, partnerships, owners and shareholders, plus individuals needing personal tax, wills and…
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 3y
Location
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Computed from 5 filingsProvides accounting and business advisory services to businesses and individuals, including preparation of accounts, VAT and payroll, tax returns, R&D tax credit and SEIS/EIS claims, forensic…
Serves entrepreneurs, SMEs and corporates across the UK, including R&D-active businesses, film-sector companies, firms seeking investment reliefs, and some individuals with personal tax affairs.
Financial Health
StableStable · Hiring · 62% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy and business advisory services including preparation of accounts, bookkeeping, payroll, VAT returns, and corporate and personal tax returns. Advises on business planning,…
Serves small and medium-sized businesses, owner-managed companies, start-ups, expanding firms, overseas organisations setting up in the UK, and private clients needing personal tax support.
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 4y
Location
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Computed from 5 filingsProvides accounting and tax services for small businesses, including bookkeeping using cloud software, preparation of statutory accounts, corporation and personal tax returns, VAT compliance, payroll…
Serves start-ups, one-person businesses, established small businesses and limited companies, alongside individuals with personal tax needs.
Financial Health
StrongStrong · Hiring · 13% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy services for small and medium-sized businesses, including preparation of accounts, self‑assessment and corporation tax returns, VAT and Making Tax Digital submissions, payroll…
Serves Northamptonshire businesses, from start-up sole traders and SMEs to established larger firms, with emphasis on trades, construction/CIS clients, ecommerce businesses and landlords.
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
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Computed from 3 filingsProvides accounting, tax and business advisory services for companies, sole traders and individuals. Services include statutory accounts, bookkeeping, VAT returns, payroll, corporate and personal tax…
Serves SMEs, sole traders, partnerships and private individuals, including business owners seeking accountancy, tax and advisory support.
Financial Health
WeakWeak · 2% CAGR over 2y
Location
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Computed from 3 filingsProvides chartered accountancy and taxation services for businesses and individuals, including bookkeeping, payroll, tax planning and compliance, business advisory, and cloud accounting support. Also…
Serves small and medium-sized businesses in Worcestershire, the Midlands and beyond, including companies, partnerships, sole traders and landlords, plus individual personal tax clients.
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 3 filingsProvides accounting and bookkeeping services, tax advisory, payroll management, and cloud accounting support, alongside business consulting to help businesses manage finances, maintain regulatory…
Serves businesses and individuals, including SMEs, larger corporates, professional partnerships and high-net-worth individuals across diverse public and private sector industries.
Financial Health
DistressedDistressed · 1% CAGR over 2y
Location
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Computed from 5 filingsProvides accounting and tax advisory services for businesses and individuals, including company formation, bookkeeping, management accounts, payroll and CIS processing, self‑assessment, budgeting and…
Serves small and medium-sized businesses across London, South East England and the UK, including start-ups, limited companies, partnerships, self-employed professionals, freelancers, contractors and…
Financial Health
StrongStrong · Hiring · 14% CAGR over 4y
Location
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Computed from 3 filingsProvides online accountancy services for small and medium-sized businesses, freelancers and contractors. Services include bookkeeping, preparation of accounts, tax compliance, and financial…
Serves UK small and medium-sized businesses, contractors, freelancers and consultants, including limited company directors across England, Scotland and Wales.
Financial Health
WeakWeak · -15% CAGR over 2y
Location
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Computed from 5 filingsProvides accountancy and tax advisory services for businesses and individuals, including bookkeeping, year-end accounts, VAT returns, self-assessment, tax planning and digital accounting support…
Serves SMEs, scale-ups, entrepreneurs, contractors and high-net-worth individuals across London and the UK, with sector focus on IT, healthcare, fitness, creative industries, startups, landlords and…
Financial Health
StrongStrong · Hiring · 20% CAGR over 4y
Location
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Computed from 5 filingsProvides accountancy services for small businesses and individuals, including tax returns, bookkeeping, financial reporting, and compliance support. Offers advisory and financial management support…
Serves small businesses, entrepreneurs, contractors, landlords, tradespeople and sports professionals needing business or personal finance support, with an emphasis on Manchester-based clients.
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 4y
Location
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Computed from 5 filingsProvides accounting and bookkeeping services for small and medium businesses, including annual accounts, self‑assessment tax returns, payroll processing, VAT and CIS administration, company…
Serves small and medium-sized businesses, sole traders, partnerships and limited companies, plus landlords and businesses operating VAT, PAYE, payroll or CIS schemes.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides accounting and bookkeeping services for businesses and individuals, including tax planning and compliance, VAT services, payroll processing, business start-up advice, and financial planning…
Serves businesses, business start-ups and private individuals seeking accountancy, tax, payroll and financial planning support, with a local focus around Omagh and Co Tyrone.
Financial Health
StrongStrong · Hiring · 24% CAGR over 4y
Location
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Computed from 5 filingsProvides accounting, bookkeeping and tax advisory services for businesses and individuals, including accounts preparation, VAT returns, self‑assessment, corporation tax, payroll and CIS, management…
Serves small businesses, start-ups, company directors and individuals in Ilford, Essex and East London needing accounting, tax and business advisory support, including VAT, CIS, PAYE and tax…
Financial Health
StrongStrong · Hiring · 15% CAGR over 4y
Location
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How All in One SEO 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.
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