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Bookkeeping Companies in London: 5,300+ Active Firms (2026)
Bookkeeping companies in London manage accounts, payroll records and reporting for employers across the capital's business districts.
Buying centres tend to sit with owner-managers, finance directors and HR or payroll leads rather than a single technology buyer. The most relevant firms sell recurring operational cover to small and mid-sized employers: transaction posting, bank reconciliation, payroll administration, management accounts and statutory reporting support. Engagements are usually retainer-based, with handover points around payroll runs, month-end reporting and tax filing deadlines. The relevant profile is a scaled accountancy or payroll bureau with cloud accounting workflows, secure client portals and compliance-led reporting, not a sole-practitioner practice taking on ad hoc year-end work.
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London has 5,378 actively trading bookkeeping companies, a sizeable base but one that remains weighted towards smaller practices. Only 17 firms report more than £5M in annual turnover, so the revenue-ranked upper tier is thin relative to the wider field. A further 888 were incorporated since 2022, which points to continuing formation at the lower end of the market rather than broad-based scale. Reported employment totals 1,260 people, reinforcing the view that much of the sector operates through compact teams, bureau-style delivery and owner-managed professional-services structures.
Operational risk is concentrated in routine obligations rather than market-entry licensing. Payroll bureaux handle employee records, tax deductions, pension contributions and deadline-driven submissions, so accuracy and audit trails matter even when the provider is not giving regulated financial advice. Bookkeeping providers also sit close to anti-money-laundering checks, data-protection duties and statutory reporting evidence, particularly where clients expect the same firm to prepare management accounts and year-end packs. The commercial structure is therefore compliance-led: recurring fees, repeatable processes and document retention shape margins more than bespoke advisory work.
Automation appears to be pushing the sector away from basic transaction entry and towards exception handling, payroll corrections, reporting interpretation and client chasing. That favours bureaux with standardised workflows and enough staff cover to absorb deadline pressure, while very small practices may remain relationship-led and local. Consolidation tends to be plausible where payroll, bookkeeping and management accounts are already sold together, but the market is still fragmented enough for specialist operators to survive. Margin pressure is likely to sit around routine processing, with trust, responsiveness and evidence quality carrying more weight in client retention.
5,378
Active firms
2026
17
Revenue over £5M
larger operators
888
Recent incorporations
since 2022
Key facts
About 1% of the trading cohort reports turnover above £5M (17 of 5,378 firms) — the rest sits below that revenue band.
16% of the cohort was incorporated since 2022 (888 firms), so a sizeable share is in its first few filing cycles.
Bookkeeping and payroll services sit close to day-to-day finance operations for employers across London’s business districts.
Demand tends to follow payroll cycles and recurring reporting deadlines, rather than one-off project spend.
The market spans payroll bureaux, accounts-processing firms and leaner operators serving recurring finance-admin needs.
Headcount can be a poor proxy for delivery scale where group structures, subcontracted delivery or software-supported processing are in use.
Top London bookkeeping companies
Finling Associates Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides outsourced accounting and finance services for businesses, including bookkeeping, monthly management accounts, VAT returns, corporation tax, payroll setup, and financial reporting, using…
Serves entrepreneurs, finance directors and fast-growing B2B companies, particularly in tech/IT and real estate, seeking outsourced finance team support.
Financial Health
HealthyHealthy · Hiring · 10% CAGR over 4y
Location
CASA BOOKKEEPING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides bookkeeping and accounting support for small and medium-sized businesses, including payroll processing, management reporting and HR administration. Uses cloud accounting platforms such as…
Serves B2B clients: sole traders and small to medium-sized growing businesses in London at various stages of growth, including users of Xero, QuickBooks and NetSuite.
Financial Health
DistressedDistressed · -10% CAGR over 4y
Location
Interland Group Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides outsourced accounting and business administration services for companies, including bookkeeping, payroll processing, VAT returns, management and annual accounts, sales and purchase ledger…
Serves businesses across a range of industries, particularly established companies with turnovers above £5m. Targets sole traders, partnerships, self-employed people, property accounts and limited…
Financial Health
DistressedDistressed · -61% CAGR over 4y
Location
Solutions 4 Caterers Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides outsourced accounting, bookkeeping and payroll services for hospitality businesses such as restaurants and catering operators. Offers financial reporting, KPI analysis, administrative…
Serves UK hospitality businesses, particularly multi-site restaurant, catering, café and foodservice operators needing outsourced finance and administrative support as they grow.
Financial Health
StableStable · Hiring · 21% CAGR over 2y
Location
MULTITOP ACCOUNTANTS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
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
ONTHEGO ACCOUNTANTS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accounting and outsourced finance services for startups and digital businesses, including bookkeeping, payroll, VAT and tax compliance, R&D tax credit claims, EIS/SEIS and EMI support,…
Serves B2B clients including early-stage and high-growth tech startups, eCommerce businesses, digital agencies, and US/EU startups operating in the UK, particularly founders and finance teams needing…
Financial Health
HealthyHealthy · Hiring · 22% CAGR over 4y
Location
Jigsol Business Solutions Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accountancy services including bookkeeping, tax compliance, payroll, and business advisory. Develops and supplies proprietary analytics and rota management software that integrates business…
Serves B2B clients in hospitality, leisure, recruitment and technology, particularly operators needing support across finance, payroll, staffing and data-led management.
Financial Health
HealthyHealthy · -4% CAGR over 3y
Location
Addition Financial Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides outsourced finance and accounting services for businesses, including bookkeeping, payroll, tax planning, R&D tax credit claims, budgeting, forecasting, and financial reporting, supported by…
Serves startups and growing SMEs needing ongoing finance support, including founders and management teams looking for bookkeeping, tax, payroll, forecasting and CFO-style guidance.
Financial Health
StrongStrong · Growing, Hiring · 44% CAGR over 5y
Location
Michael Omiros Limited
Trajectory
4y · 2022–NowFinancial sub-scores
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
THE ACCOUNTING CENTRE LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides accountancy and financial administration services for businesses, including management accounts, bookkeeping, VAT, payroll bureau services, BACS payment processing, annual accounts and tax…
Serves a mix of B2B and individual clients across the UK, especially owner-managed businesses, franchise owners and franchisees needing accounting, payroll, tax and payment bureau support.
Financial Health
StrongStrong · -8% CAGR over 1y
Location
KMS SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accountancy and business advisory services including accounts preparation, audit and compliance, tax planning, payroll, company secretarial and digital accounting for businesses and…
Serves owner-managed, established, high-growth and start-up businesses, plus high-net-worth individuals across London and Surrey, with sector focus including property, professional services,…
Financial Health
HealthyHealthy · -69% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accounting, bookkeeping, payroll, cloud accounting, tax planning and compliance, and financial advisory services. Supports start-ups and high‑growth companies with forecasting, reporting,…
Serves start-ups and high-growth businesses, mainly in fintech, energy and innovative technology, plus sectors such as crypto/blockchain, real estate, software, FMCG, manufacturing, textiles and…
Financial Health
HealthyHealthy · Hiring · 22% CAGR over 4y
Location
Astute Accountants Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accountancy and tax advisory services for businesses, including bookkeeping, financial reporting, tax compliance, tax investigations support, R&D tax credit claims, payroll bureau services,…
Serves owner-managed businesses and SMEs, including entrepreneurs and firms in property, construction, technology, IT, healthcare, import/export, and food and catering, mainly across London with some…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
ABUDEY & CO. LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides accounting and bookkeeping services for businesses, including preparation of company accounts, VAT returns, payroll administration, tax returns, audits, and online accounting support, along…
Serves SMEs, large organisations, sole traders, partnerships and corporate enterprises across the UK, targeting business owners and internal finance teams needing external accountancy support.
Financial Health
StableStable · 0% CAGR over 2y
Location
FRESH FINANCIALS (UK) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides outsourced bookkeeping and financial operations services for small businesses, freelancers and startups, including payroll processing, credit control, accounts payable and receivable,…
Serves small businesses, freelancers and startups, plus accountancy partners, mainly buyers seeking outsourced bookkeeping and finance operations support using Xero or QuickBooks.
Financial Health
WeakWeak · Hiring · 4% CAGR over 3y
Location
ACC CRUNCHERS LTD
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides accounting and finance services for businesses, including bookkeeping, tax filing and planning, payroll processing, and annual compliance. Also offers financial reporting, cash flow…
Serves small and growing businesses operating in the UK, US or internationally, including companies needing outsourced finance support, payroll/bookkeeping capacity, tax compliance help, and…
Financial Health
StableStable
Location
Kechkay Management Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accounting and business support services for small and medium-sized organisations, including bookkeeping, payroll processing, VAT return preparation, management accounting, cashflow…
Serves small and medium-sized businesses, plus charity and non-profit organisations, seeking outsourced accounting and finance support.
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 4y
Location
Richlands Business Advisers Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accountancy and business advisory services including tax planning and compliance, statutory accounts preparation, audit, payroll, bookkeeping, management accounting, and company secretarial…
Serves businesses and individuals across the UK and internationally, including overseas entrepreneurs and companies entering the UK market, and established organisations requiring accountancy, tax,…
Financial Health
StrongStrong · Hiring · 10% CAGR over 4y
Location
BERRINGERS LLP
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides accountancy and audit services for individuals, companies and charities. Prepares financial statements and tax returns, offers corporate and personal tax advice, and delivers bookkeeping,…
Serves individuals, sole traders, partnerships, small companies, charities, medium and large entities and international groups across the UK and beyond.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
Amity Services Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides accountancy and tax advisory services for small and medium-sized businesses, including company formation, bookkeeping, management accounts, payroll and auto‑enrolment, annual accounts…
Serves small and medium-sized businesses, micro businesses, franchise operators and contractors, particularly in London, across care, construction, consulting, fast food, property, technology and…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 2y
Location
ZENITH ADVISORY SOLUTIONS LLP
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides accounting, audit and tax advisory services, including annual accounts preparation, corporation tax and VAT returns, bookkeeping, payroll, management accounts and personal tax. Also offers…
Serves businesses and private clients, including limited companies, solicitors subject to accounts rules, Innovate UK-funded businesses, organisations considering M&A, and individuals with personal…
Financial Health
StrongStrong
Location
Flintham Mackenzie Limited
Trajectory
5y · 2021–NowFinancial sub-scores
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
Sawhney Consulting Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accountancy and financial services including bookkeeping, payroll, VAT returns, tax compliance, preparation of statutory accounts under UK GAAP, statutory audits, Construction Industry…
Serves businesses needing accountancy support, including company directors, startups and established firms seeking bookkeeping, payroll, tax compliance, statutory accounts, audits and business advice…
Financial Health
HealthyHealthy · Hiring · 4% CAGR over 4y
Location
Dines Accountancy Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides outsourced accounting and finance services to businesses, including accounts production, payroll processing, financial modelling, and R&D tax credit claims. Supports companies with financial…
Serves B2B startups and growing SMEs, especially in hospitality, tech, recruitment and creative industries, targeting founders and business leaders seeking outsourced finance and accountancy support.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
SH ACCOUNTING & BOOKKEEPING LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accounting and bookkeeping services for businesses, including bookkeeping, VAT return preparation and submission, payroll processing, management reporting, and outsourced finance department…
Serves small and medium-sized businesses in hospitality, healthcare, construction, manufacturing, technology, startups and education, typically business owners or finance leads needing external…
Financial Health
DistressedDistressed · 0% CAGR over 4y
Location
The Peek Partnership Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accounting and financial advisory services to businesses and individuals, including accounts preparation, bookkeeping, audit and assurance, tax planning, VAT compliance, payroll…
Serves private businesses, owner-managed companies and individual taxpayers, including clients in wholesale trade, consultancy and hospitality, seeking accounting, tax, payroll, VAT/CIS and advisory…
Financial Health
StrongStrong · Growing, Hiring · 50% CAGR over 4y
Location
Miller Davies LLP
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accountancy and advisory services including audit, bookkeeping, cloud accounting, payroll, VAT returns, corporate and personal tax planning, self‑assessment, company secretarial support, and…
Serves UK and overseas businesses, from start-ups and small companies to medium and large enterprises, alongside individuals needing personal tax and financial accounting support.
Financial Health
StableStable · Hiring · 15% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accounting services for small and medium-sized businesses, including bookkeeping, financial reporting, tax planning and compliance, payroll administration, and charity accounting support,…
Serves small and medium-sized organisations in and around London, including companies needing payroll and tax support, charities and trustees, plus individual and corporate tax clients.
Financial Health
HealthyHealthy · -3% CAGR over 4y
Location
ORCOM CIVVALS LIMITED
Trajectory
3y · 2023–NowFinancial 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
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides accounting, auditing and tax services including bookkeeping, management accounts, payroll, corporate and personal tax compliance, company secretarial support, and business advisory services…
Serves UK and international businesses in property investment, manufacturing, shipping, construction, care homes, letting, telecoms, retail and wholesale, plus private professionals, IT contractors,…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
AGA ACCOUNTANTS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
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
pi accounting ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides outsourced accounting and finance function services for businesses, handling financial administration and offering financial and tax guidance. Also develops a finance and tax information app…
Serves startups and established businesses, primarily companies in central London, that need an outsourced finance partner with a close working relationship.
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 4y
Location
Maclean Carmichael Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accounting and tax services for small businesses and individuals, including company accounts preparation, bookkeeping, VAT returns, payroll processing, self‑assessment tax returns, cloud…
Serves small businesses, freelancers, contractors, sole traders, landlords, property investors, startups, growing limited companies and individuals in need of accountancy and tax support.
Financial Health
HealthyHealthy · -13% CAGR over 4y
Location
We'll Mind Your Own Business Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides bookkeeping, accounting and tax services, including production accounting for film and television projects. Also manages payroll and pensions, company secretarial duties, business…
Serves businesses needing outsourced finance and administration support, with a particular focus on film and TV production companies requiring production accounting from pre- to post-production.
Financial Health
StableStable · 0% CAGR over 2y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accounting, audit, tax, payroll and business advisory services to businesses and individuals. Offers outsourced finance functions, compliance support and consulting, including tax planning,…
Serves UK businesses of varied sizes, especially micro, small and medium-sized companies, as well as business owners and individuals seeking local accountancy and advisory support.
Financial Health
StableStable · -62% CAGR over 4y
Location
FUSE Accountants LLP
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides accounting, audit and tax compliance services for businesses and individuals. Offers business planning and advisory, corporate finance, bookkeeping and cloud accounting support, workplace…
Serves small businesses, regulated bodies, self-employed people and individuals, particularly in digital, technology, events, hospitality, fashion, media, creative, music, entertainment, property and…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
ABACUS ACCOUNTING TECHNICIANS LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides accounting and bookkeeping services for businesses and self‑employed clients, including management accounts, financial forecasting, tax return preparation, VAT services, payroll processing,…
Serves B2B and self-employed clients, including startups, freelancers, owner-managed companies and established businesses, with an emphasis on South East London customers.
Financial Health
HealthyHealthy · -8% CAGR over 4y
Location
SIMON & CO LONDON LTD
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsProvides accountancy and financial advisory services including bookkeeping, year‑end and management accounts, business and personal tax advice, payroll, cloud accounting, company secretarial support,…
Serves small businesses, start-ups and contractors, plus individuals needing tax or probate support, with sector focus on construction, technology, property and recruitment firms.
Financial Health
StableStable · Hiring · 100% CAGR over 1y
Location
GOODHAMS ACCOUNTANTS & TAX ADVISORS LLP
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides accounting, bookkeeping and cloud accounting services including final and management accounts, payroll, VAT returns and cash‑flow forecasting. Also delivers personal and corporate tax…
Serves small businesses and individuals in London/UK, including start-ups, sole traders, limited companies, contractors, construction firms, landlords, regulated businesses, retailers, solicitors,…
Financial Health
StableStable · Hiring · 10% CAGR over 2y
Location
YBSM Partners Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accounting and financial services for businesses and individuals, including bookkeeping, payroll processing, tax planning and returns, VAT support, management accounts, company secretarial…
Serves individuals, self-employed professionals, schools, and businesses from independent traders to large national firms needing accounting, tax, payroll, bookkeeping, and related support.
Financial Health
StrongStrong · Growing, Hiring · 34% CAGR over 4y
Location
Kajaine Accountants Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accountancy and tax services to individuals and small and medium-sized businesses, including bookkeeping, financial reporting, tax planning and compliance, payroll and VAT support, auditing,…
Serves SMEs, new businesses and individuals across the UK, including property investors and developers, online technology companies, entertainment clients and other multi-sector businesses.
Financial Health
StableStable · -18% CAGR over 4y
Location
AXIS ACCOUNTANTS LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides accountancy, auditing and tax advisory services to businesses and individuals. Services include accounts preparation, bookkeeping, payroll and PAYE, VAT returns and planning, corporate and…
Serves sole traders, limited companies, partnerships and LLPs, plus individual taxpayers, mainly in South West London. Specialist client groups include doctors, dentists, charities, solicitors and…
Financial Health
StrongStrong · Hiring · 5% CAGR over 4y
Location
M.R ACCOUNTANTS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accounting, tax and business advisory services to individuals and businesses, including bookkeeping, payroll, corporate and personal tax planning, VAT support, company secretarial work,…
Serves startups, established businesses, companies, charities and other not-for-profit organisations, plus individuals and private clients seeking tax and financial guidance.
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
FINANCIAL PARTNERSHIP LIMITED
Trajectory
5y · 2021–NowFinancial 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
T & K ACCOUNTANCY LLP
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides accounting and tax advisory services for businesses and individuals, including bookkeeping, payroll, VAT, self‑assessment, management accounts, corporate tax planning, cloud accounting…
Serves sole traders, SMEs, limited companies, LLPs, charities and individuals, with sector focus including care homes, driving schools, engineering, franchises, IT, medical, ecommerce, restaurants,…
Financial Health
StrongStrong · Hiring · 13% CAGR over 3y
Location
TAXCARE ACCOUNTANCY LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides accountancy and tax advisory services for businesses, including bookkeeping, payroll processing, tax planning and compliance, and business advisory support delivered by chartered certified…
Serves UK businesses, including company owners, directors and finance teams seeking external chartered accountancy, tax, bookkeeping, payroll and business advisory support for ongoing compliance.
Financial Health
StableStable · Hiring · 11% CAGR over 4y
Location
Best4business Accountants & Company Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides accounting and taxation services including bookkeeping, payroll processing, VAT returns, statutory accounts, and financial reporting. Offers business and personal tax advice, financial…
Serves UK businesses, charities and other organisations, alongside individuals such as expatriates and personal tax clients; targets owners, finance teams, employers and trustees.
Financial Health
HealthyHealthy · Profitable · 4% CAGR over 2y
Location
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides chartered accountancy and tax advisory services to businesses and individuals, including year‑end accounts, payroll, business start‑up support, cloud accounting, service charge accounting,…
Serves owner-managed businesses, start-ups, franchises, landlords, medical professionals, property/service charge clients, and individuals requiring accounting and tax support, primarily around West…
Financial Health
StrongStrong · Hiring · 50% CAGR over 4y
Location
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How London bookkeeping companies work and how to sell to them
What they do
Revenue usually comes from monthly retainers, with pricing shaped by transaction volume, payroll complexity, reporting frequency and the number of client entities served. London bookkeeping firms at the scaled bureau end tend to sell an operating service rather than a one-off compliance task: reconciliations, payroll runs, payment preparation, management reporting packs and year-end evidence handed to accountants or internal finance teams. Add-ons often include catch-up work, onboarding, pension administration and more frequent reporting. Margins depend on repeatable workflows, clear client cut-off dates and low rework, because labour still sits underneath much of the delivery even where cloud accounting and automation handle routine posting.
Who they sell to
Typical customers are owner-managed businesses, small employers, multi-site service firms and mid-market companies that have outgrown founder-led finance administration but do not yet want a full internal finance function. Buyers usually include managing directors, finance directors, operations leads and HR or payroll managers, with external accountants sometimes influencing the choice. Smaller contracts are often won through referrals, local networks and direct sales, while larger outsourced payroll or finance-office arrangements may involve a more formal comparison process. Sales cycles tend to lengthen when payroll migration, historic records, client approvals and reporting formats need to be checked before handover.
What they buy
Most bookkeeping firms tend to spend on workflow management, client onboarding tools, secure document exchange, practice management, billing, payroll processing, bank-feed reconciliation, analytics and reporting software. Security, access control, backup, identity checks and audit-trail tooling matter because these firms handle salary, bank and tax information for many employers at once. Larger bureaux also buy recruitment, training, employment law advice, professional indemnity cover, office systems and marketing support. Sellers should expect operational buyers to ask about integration effort, staff adoption, client permissions, exception handling and whether a tool reduces deadline risk without creating extra administrative work.
Why and how to sell to them
Buying intent often appears when a bureau adds payroll clients, standardises across several London boroughs, hires finance operations staff, acquires a client book or moves from relationship-led service into a more process-led model. Pain points are usually mundane but commercial: late client paperwork, payroll corrections, duplicate data entry, inconsistent evidence trails and margin leakage on fixed-fee work. Outbound angles work best when they speak to recoverable staff time, fewer month-end bottlenecks, cleaner client handovers and clearer compliance evidence. Claims about automation need to be practical; these buyers tend to distrust tools that shift work from internal staff to client chasing.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. 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.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
Sources
- Payroll Outsourcing Market Size & Share Analysis - Growth Trends and Forecast (2026 - 2031)
- Market Size (2026): USD 13.21 Billion.
- Market Size (2031): USD 17.83 Billion.
- Growth Rate (2026 - 2031): 6.19% CAGR.
- North America accounted for 40.70% of 2025 revenue.
- Asia-Pacific is the fastest-growing region at an 8.78% CAGR through 2031.
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