Accountants for Startups in London: Guide to Specialist Companies (2026)
AC
Acumon Chartered Accountants·12 min read
London startups can choose from specialist startup practices, technology-focused accountants, and larger advisory firms with teams dedicated to early-stage and high-growth companies. This guide highlights a practical selection rather than ranking the firms, with attention to startup accounting, tax, fundraising support, financial reporting, and day-to-day compliance.
Acumon
Acumon is a UK firm of chartered accountants providing specialist accounting services to startups, from incorporation through funding rounds and growth.
The firm works with funded and bootstrapped companies, supporting them with the compliance core on fixed fees while handling specialist needs such as SEIS/EIS advance assurance, R&D claims, share option schemes and investor-grade reporting. These services are delivered from its London base by a fully UK-based team, ensuring founders receive consistent, partner-led support as they scale.
Startup accounting differs from ordinary small-business work. It involves investment rounds where tax reliefs depend on precise paperwork, share option schemes that must be structured and notified correctly, R&D claims that withstand HMRC scrutiny, and monthly burn-rate and runway reporting that boards and investors rely on. Acumon addresses these requirements from day one, keeping records diligence-ready so that later funding rounds or exits do not expose early structural weaknesses.
The firm supports startups through the full lifecycle: structuring incorporation and cap tables for future rounds, managing SEIS and EIS eligibility and compliance, preparing defensible R&D claims, implementing EMI option schemes in the correct sequence, and delivering cloud accounting with monthly founder and board reporting on burn, runway and traction metrics. Payroll, VAT and routine compliance are handled in parallel so founders can focus on building the business.
Accountants for Startup Capabilities:
Acumon provides accounting and advisory services tailored to early-stage and growth companies.
These include:
Funded and bootstrapped startups
SEIS/EIS advance assurance, share issues and compliance statements
R&D tax relief claims assessed and documented for HMRC review
EMI share option schemes (valuations, grants and notifications)
Monthly burn, runway and investor-grade reporting
Cloud accounting kept current and diligence-ready
Support through funding rounds, including due diligence preparation
These capabilities allow the firm to serve startups from first formation through successive investment rounds while maintaining clean records and tax-efficient structures.
Regulatory Licences and Registrations:
Acumon holds several audit registrations that enable it to support organisations operating across multiple jurisdictions.
These include:
UK statutory audit registration
Public Interest Entity (PIE) audit licence
Jersey audit licence
Isle of Man audit licence
Cayman Islands audit licence
British Virgin Islands audit licence
These registrations allow the firm to provide audit services to groups that include entities in both the UK and key international financial centres.
Core Services:
In addition to statutory external audit, Acumon provides a range of services that support financial reporting and governance.
These include:
Statutory external audit
Group and subsidiary audits
Public Interest Entity (PIE) audits
Charity and not-for-profit audit
Audit of international group structures
Internal audit and governance reviews
Risk management and compliance support
Audit work is often delivered alongside discussions with management and boards regarding financial reporting processes and governance frameworks.
Many organisations initially encounter statutory audit requirements as they grow and exceed the audit exemption thresholds set out in the Companies Act.
Acumon works with businesses that are:
Approaching their first statutory audit
Preparing for external investment
Expanding into international markets
Operating within corporate group structures
Early engagement with an audit firm can help ensure that financial reporting systems and documentation are aligned with statutory audit requirements.
Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK
Barnes & Scott
Barnes & Scott concentrates on technology, digital, and fintech startups. The practice works with companies ranging from pre-revenue businesses to funded startups moving through Series A and Series B rounds.
Their accounting work is closely connected with the issues that often appear as technology companies grow. Services include R&D tax credits, SEIS and EIS, EMI share schemes, cap table support, investment readiness, international tax matters, and management reporting. Monthly accounting packages also cover bookkeeping, payroll, VAT, company accounts, and tax returns.
Key Facts:
Ideal for: Technology, digital, fintech, and venture-backed startups
Address: Tintagel House, 92 Albert Embankment, London SE1 7TT
Jump Accounting
Jump Accounting works specifically with startups, SMEs, and growing limited companies. Its London service combines standard accounting responsibilities with advisory work that becomes useful when founders begin hiring, seeking investment, or introducing employee equity.
Core accounting services include year-end accounts, bookkeeping, Corporation Tax returns, payroll, VAT, confirmation statements, and management accounts. Startup-focused advisory options include SEIS and EIS applications, EMI schemes, business valuations, forecasting, fundraising advisory, and financial strategy.
Key Facts:
Ideal for: Early-stage and growing startups that want accounting and fundraising support from one provider
Gerald Edelman has a dedicated offering for startups and early-stage companies from its City of London office. Their work covers both the financial administration of running a young business and the planning needed when founders are preparing for growth.
Startup support includes bookkeeping and accounts, tax planning and compliance, cash flow and financial forecasting, funding support, and wider business advisory. The firm’s broader capabilities can also become useful as a startup develops, particularly where the business later requires corporate finance or more complex tax advice.
Key Facts:
Ideal for: Founder-led companies looking for accounting plus wider commercial and tax advice
Core services: Accounting, bookkeeping, tax, forecasting, business advisory
Protax Consultants is based in Wimbledon and works with early-stage and scaling startups across London. The practice supports technology, SaaS, creative, and other founder-led businesses, with both face-to-face and remote accounting available.
Startup services extend beyond annual accounts. Protax handles company structuring, investor-ready financial information, SEIS and EIS work, R&D tax credits, and ongoing accounting infrastructure. Its broader accounting services cover Corporation Tax, VAT, bookkeeping, payroll, and other compliance work.
Key Facts:
Ideal for: London founders wanting a smaller practice with startup-specific tax knowledge
Core services: Company accounts, Corporation Tax, VAT, bookkeeping, payroll
Startup services: SEIS/EIS, R&D tax credits, company formation, investor-ready financials
Location: Wimbledon, London
Professional status: ACCA practice and registered auditor
Address: Lombard Business Park, 8 Lombard Road, Wimbledon, London, SW19 3TZ
Accotax
Accotax provides dedicated accounting packages for startups in London alongside its wider work with limited companies, contractors, and other owner-managed businesses. Startup clients can use the firm for basic compliance from the first stages of running a company.
Services include company formation, bookkeeping, VAT, payroll, company accounts, Corporation Tax returns, confirmation statements, pensions, and personal tax work for directors. The firm also has a separate technology accounting service for startups and growing tech companies.
Key Facts:
Ideal for: New businesses that want accounting and tax compliance handled under a monthly service
Address: Suite 112, 65-69 Lots Road London, SW10 0RN
Tech Relief
Tech Relief, the trading name of TR Tax Advisers Limited, focuses specifically on technology companies and startups. Its London practice works with businesses ranging from newly established tech ventures to larger companies entering additional markets.
The firm’s work combines business accounts and Corporation Tax with VAT, tax planning, R&D tax credits, international tax, and tax investigation support. For startups, this can provide a relatively focused option where technology-sector tax issues are just as important as routine bookkeeping and year-end compliance.
Key Facts:
Ideal for: Technology startups and growing tech companies
Core services: Business accounts, Corporation Tax, VAT, tax planning
Specialist services: R&D tax credits, international tax, tax investigations
M.Tatar & Associates has built a dedicated service around high-growth technology startups. The North London practice works with founders on both compliance and the financial questions that emerge around investment, cash flow, reporting, and scaling.
Its startup services cover accounting and tax compliance, bookkeeping, forecasting, virtual finance office support, payroll, employee share options, company secretarial work, audit, SEIS/EIS compliance, and tax advisory. R&D tax relief is another established part of the firm’s work with innovative businesses.
Key Facts:
Ideal for: High-growth technology and innovative startups
YMA Consultants supports startups from its Fulham office, with services covering initial setup as well as the reporting and tax requirements of businesses preparing to raise capital. Technology and SaaS companies are a particular area of focus.
Their startup work includes company formation, HMRC registrations, bookkeeping systems, payroll, management accounts, forecasting, SEIS/EIS applications, R&D tax credits, and investor-readiness support. The firm can also provide corporate finance and due diligence services as financial requirements become more complex.
Key Facts:
Ideal for: Early-stage, technology, SaaS, and investor-backed startups
OD Accountants is a chartered management accounting practice with a London office in Bethnal Green. Its tech startup service is built around cloud accounting, regular management information, and financial reporting rather than relying only on annual compliance.
For growing startups, the firm can track burn rate and runway, prepare monthly management accounts and KPI dashboards, and handle Corporation Tax, VAT, payroll, annual accounts, and Companies House obligations. Virtual finance director support is available when founders need more strategic input without hiring a full-time finance director.
Key Facts:
Ideal for: Tech startups that need regular financial visibility and management reporting
LOYALS has a dedicated service for London technology startups, with its office close to King’s Cross. Its offering is particularly focused on the tax and equity issues that frequently accompany startup fundraising.
Alongside limited company accounts and bookkeeping, the practice handles R&D tax credit claims, SEIS and EIS advance assurance, EMI share option schemes, SaaS bookkeeping, VAT, and founder tax planning. Services are structured for businesses at different stages, from pre-seed companies through funded and scaling technology businesses.
Key Facts:
Ideal for: Technology and SaaS founders dealing with investment, R&D, or employee equity
Core services: Company accounts, bookkeeping, VAT, tax planning
Startup services: R&D tax credits, SEIS/EIS, EMI
Specialization: Pre-seed through later-stage technology startups
CooperFaure works with startups, early-stage companies, founder-led businesses, and established SMEs from its Teddington office. Its service starts with practical requirements such as company formation, bookkeeping, payroll, and tax but can expand as a business becomes more financially complex.
The firm’s advisory capabilities include fractional CFO support, R&D tax credit work, business structuring, growth planning, equity and shareholder advice, EMI schemes, international expansion, and transaction support. That range may suit founders who expect their accounting requirements to broaden over time.
Key Facts:
Ideal for: Founder-led startups that want ongoing accounting and access to strategic finance support
Ernest & Co offers a dedicated startup accounting service for pre-seed and seed-stage founders. The practice places particular emphasis on getting company structures, investor documentation, and financial reporting organised early rather than waiting until a funding process exposes gaps.
Startup services include incorporation, founder share structures, cap table management, EIS and SEIS advance assurance, R&D tax credits, EMI option schemes, and investor-ready monthly management accounts. Standard bookkeeping, VAT, payroll, annual accounts, and limited company accounting are also available.
Key Facts:
Ideal for: Pre-seed and seed-stage founders preparing to raise investment
Accounts and Legal combines accountancy with in-house legal services and has a London office near Borough Market. The firm works with small businesses through different stages, including founders who are setting up their first company and companies that need more structured financial management as they grow.
Its London accounting services cover bookkeeping, payroll, tax, management accounts, forecasting, and wider business advice. The firm has also worked with startups on business planning, funding preparation, and the standard statutory responsibilities that come with operating a limited company.
Key Facts:
Ideal for: Startups that may need both accounting and business legal support
Growth support: Forecasting, business planning, and commercial advice
Location: South Bank, London
Notable strength: Accounting and legal services are available within the same firm
Contact Information
Website: accountsandlegal.co.uk
Phone: 020 7043 4000
Address: The Hop Exchange, 24 Southwark Street, South Bank, London, SE1 1TY
Conclusion
The accounting needs of a London startup can change quickly. A newly incorporated company may initially need bookkeeping, payroll, annual accounts, and Corporation Tax support, while a funded business can soon require SEIS or EIS work, management reporting, cash flow forecasting, EMI schemes, R&D advice, or finance director input.
The right fit therefore depends on the startup’s stage, industry, funding plans, budget, and the amount of financial guidance required. Some firms in this list focus closely on technology and venture-backed companies, while others provide broader accounting, tax, legal, audit, or advisory capabilities that can remain useful as the business grows.
AC
Written by the Acumon team
Acumon is an ICAEW-registered firm of chartered accountants and registered auditors
based in London, with offices in Pitstone, Aylesbury and Bournemouth. Need advice on
anything covered here? Talk to us.
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