Accountant Companies for Startups in the UK: Firms and Services Guide
AC
Acumon Chartered Accountants·19 min read
Choosing an accountant is one of those early decisions that can affect a startup long after the first tax return has been filed. The right support can help founders understand their numbers, manage cash flow, prepare for investment, and avoid small financial issues turning into expensive problems.
The UK has a broad mix of accounting providers, from large professional services firms to smaller practices that work mainly with startups and growing businesses. Their experience, service models, technology, and level of hands-on support can vary considerably.
This guide looks at a selection of accountants supporting startups across the UK. It is not intended as a ranking. Instead, it provides practical context on who these firms are, the services they offer, the types of businesses they usually work with, and the areas in which they are most active.
Acumon
Acumon is a UK firm of chartered accountants and registered auditors supporting startups, growing companies, charities, and international corporate groups with accounting, financial reporting, audit, and governance requirements.
The firm works with businesses at different stages of development, from owner-managed startups establishing their first formal finance processes to larger groups operating across several jurisdictions. Its work combines day-to-day accounting support with experience in statutory reporting, risk management, internal controls, and regulated financial environments.
For startups, accounting requirements often become more complex as the business begins hiring, raising investment, entering new markets, or creating a group structure. Acumon works with management teams to help ensure that financial records, reporting processes, and supporting documentation develop alongside the company.
Acumon also holds a Public Interest Entity (PIE) audit licence, which allows the firm to work with listed companies and other organisations subject to enhanced regulatory oversight in the UK. This experience is relevant to startups preparing for institutional investment, future regulation, or more demanding reporting and governance requirements.
Alongside its UK registration, Acumon holds audit licences in several international financial centres, including the Cayman Islands, British Virgin Islands (BVI), Jersey, and Isle of Man. This enables the firm to support startups and corporate groups whose ownership, investment, or operating structures include entities outside the UK.
Cross-border startup structures include a UK trading company, overseas investors, offshore holding entities, or subsidiaries in different markets. Managing the accounting and reporting requirements of these structures requires an understanding of group reporting, consolidation, governance, and coordination between jurisdictions.
Acumon works with founders, finance teams, and boards to support statutory accounting obligations while helping businesses improve financial reporting processes, internal controls, and governance arrangements as they grow.
Accounting Capabilities
Acumon provides accounting and financial reporting support across a range of business structures, including startups that are moving from early-stage operations into a more established growth phase.
These include:
UK limited companies and corporate groups
Public Interest Entities (PIEs) and regulated organisations
offshore holding companies and investment vehicles
Engagements are typically overseen by senior professionals who remain directly involved in understanding the organisation, its reporting requirements, and the financial issues that arise as it develops.
Regulatory Licences and Registrations
Acumon holds several registrations that allow the firm to support businesses and corporate groups operating in the UK and across key international financial centres.
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 are particularly relevant where a startup develops into an international group or has investors, subsidiaries, or holding companies located across different jurisdictions.
Core Services
Acumon provides accounting, audit, reporting, and governance services designed to support businesses as their financial and organisational structures become more complex.
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
This work can form part of a broader relationship with founders, finance teams, and boards, particularly where the business needs to improve its financial reporting, prepare for scrutiny from investors, or introduce stronger governance processes.
Many startups initially manage their finances through relatively simple systems. As revenue, headcount, investment, and transaction volumes increase, those early arrangements may no longer provide the level of reporting or control the company needs.
Acumon works with businesses that are:
approaching their first statutory audit
preparing for external investment
expanding into international markets
operating within corporate group structures
Engaging an experienced accounting firm before these changes take place can help a startup improve its financial records, organise supporting documentation, and prepare its reporting processes for future statutory, investor, and governance requirements.
Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK
Accounting Wise
Accounting Wise provides online accounting services for startups, sole traders, limited companies, partnerships, contractors, freelancers, and other small businesses across the UK. Each client works with a dedicated accountant who handles ongoing financial questions through email, phone, live chat, Microsoft Teams, or in-person meetings. Their team includes professionals with AAT, ACCA, ICAEW, and ICPA credentials.
Their startup packages combine routine accounting work with software and deadline management. They prepare accounts and tax returns, manage payroll and bookkeeping, submit VAT returns where required, and deal with HMRC and Companies House. Clients also receive automated filing reminders, access to accounting software, and guidance on matters such as company formation, VAT registration, business expenses, SEIS, EIS, and tax planning.
Clear House Accountants is an ACCA-regulated firm with offices in London, Stanmore, and Harrow. They work across accounting, tax, business advisory, and financial planning, combining routine compliance with wider support around growth, risk, cash flow, and business readiness. Their work is built around direct communication, cloud accounting tools, and access to current financial information.
They provide startups with accounting records, tax support, cash flow management, financial forecasting, and advice around business structure and growth planning. Their wider partnership network covers areas including funding, banking, legal services, marketing, software, wealth management, protection, and exit planning, giving clients a single point of coordination for several business needs.
Mazuma provides subscription-based online accounting for startups, freelancers, landlords, sole traders, limited companies, and small businesses. Their service is designed around removing routine paperwork from the client’s workload. Financial documents can be submitted through MazApp, an online portal, open banking, or by sending paper receipts through Freepost.
Their accountants handle monthly bookkeeping, payroll, bank reconciliations, VAT, statutory accounts, tax returns, and HMRC filings. Clients receive updated accounts and practical guidance throughout the year, while the MazApp provides document storage, invoicing, payments, bank integration, and online support. The service does not require clients to manage specialist accounting software themselves.
Melanie Curtis Accountants is a chartered accountancy firm based in Wokingham, Berkshire. They work with startups, limited companies, SMEs, family-run businesses, freelancers, contractors, recruiters, construction firms, and female business owners. Their approach is personal and responsive, with an emphasis on helping clients understand current financial information rather than receiving figures only after the year has ended.
They provide core accounting alongside outsourced finance directors and business growth services. Their team works with business owners in real time, explains financial results in practical terms, and adjusts the level of support as the company develops. The firm also focuses on budgeting, profitability, business planning, and the financial decisions involved in hiring, marketing, and expansion.
Key Highlights:
Chartered accountants based in Berkshire
Direct and responsive client communication
Real-time financial discussions
Support that expands with the business
Experience with startups and owner-managed companies
Blue Shore is a firm of chartered accountants working with startups and growing businesses. They assist founders with early financial decisions, including business structure, bank account setup, tax obligations, VAT registration, company accounts, and accounting software. Their team works with sole traders and limited companies and provides direct guidance throughout the setup and growth stages.
Their startup accounting work also covers business plans, fundraising preparation, financial compliance, tax planning, and longer-term growth strategy. They recommend and provide training on accounting software, prepare information for HMRC and Companies House, and help founders organise their finances before speaking with lenders or investors. Their working style is centred on clear explanations and regular access to the accounting team.
Braant works with startups, new businesses, and growing companies across the UK. They focus on setting up the financial side properly from the start, covering company formation, business structure, registrations, accounting systems, and ongoing compliance. Their team works directly with founders and provides a consistent point of contact rather than moving clients between departments.
As a business develops, they add services around bookkeeping, payroll, VAT, cash flow forecasting, reporting, funding, and tax relief. They also provide part-time finance director and CFO support, SEIS and EIS guidance, R&D Tax Relief, pension auto-enrolment, and Self Assessment. Their advice is structured around what the business needs at each stage rather than bundling every service into the initial setup.
OnTheGo Accountants works with technology startups, digital agencies, and ecommerce businesses in the UK and internationally. They build and manage finance functions covering bookkeeping, tax, monthly reporting, cash flow, and financial planning. Each client has a dedicated adviser, backed by a compliance accountant who tracks filing requirements and deadlines.
Their work includes cross-border tax, multi-currency accounting, investor reporting, R&D claims, SEIS, EIS, and EMI share schemes. They also provide outsourced CFO services for businesses that need financial modelling, forecasting, burn-rate reporting, and revenue recognition without hiring a full-time finance lead. Communication is handled through email, phone, and Slack.
RSBC Accountants provides accounting and tax services to startups, limited companies, sole traders, and other small businesses across the UK. They assist founders with company formation, Companies House registration, Corporation Tax setup, bookkeeping, payroll, VAT, and statutory filings. Clients receive a dedicated accountant and access to the team through meetings, email, phone, and Skype.
Their work also covers cash flow, budgeting, tax planning, financial reporting, and cloud accounting setup. They use automated bookkeeping tools, AI-based accounting software, and predictive reporting as part of their wider finance support. Quarterly bookkeeping reviews, filing reminders, tax payment alerts, and same-day responses are included within their client service model.
MCC Accountants is a chartered accountancy practice based in Manchester and Salford. They work with sole traders, partnerships, limited companies, property businesses, construction firms, hairdressers, beauty salons, and new companies. Their accountants handle routine compliance while explaining financial and company matters directly to the business owner.
They provide individually structured accounting services rather than using the same arrangement for every client. Their team tracks deadlines and regulatory changes, prepares accounts and tax work, and answers questions around running a limited company or managing self-employed finances. Clients work with named accountants who remain involved in their ongoing queries and filings.
Key Highlights:
Chartered accountancy practice
Based in Manchester and Salford
Named accountant support
Services tailored to the business structure
Deadline and regulation updates
Experience with limited companies and sole traders
Naail & Co is a London-based accounting firm providing accounting, tax, and business support to startups, companies, contractors, freelancers, and sole traders. They work with founders on company structure, registrations, bookkeeping, VAT, payroll, Corporation Tax, and Companies House filings. Each engagement includes a dedicated accounts manager and a finance setup built around the company’s trading activity and filing timetable.
Their startup work extends into cash flow forecasting, budgeting, investor reporting, due diligence, SEIS, EIS, EMI schemes, and R&D Tax Relief. They also advise on founder pay, share structures, VAT strategy, first hires, pension duties, and financial controls. The firm places particular emphasis on keeping records ready for investment, tax claims, and later-stage review.
Startup Accountancy works with UK founders and early-stage businesses through fixed monthly accounting plans. They handle bookkeeping, year-end accounts, Corporation Tax, VAT, payroll, confirmation statements, and ongoing compliance with HMRC and Companies House. Their packages are structured by transaction volume, employee numbers, and reporting frequency, with quarterly or monthly reporting depending on the level of activity.
Their wider work includes company formation, Self Assessment, R&D Tax Credits, and SEIS or EIS compliance. The service is technology-led, but clients still deal directly with people who understand their business model and financial position. Reporting focuses on income, spending, and day-to-day financial clarity rather than leaving everything until the end of the year.
Key Highlights:
Fixed monthly accounting plans
Quarterly or monthly reporting
Support from people familiar with startup operations
Crunch combines its own online accounting software with access to client managers and Chartered Certified Accountants. They work with startups, freelancers, contractors, sole traders, and limited companies, covering everyday financial administration through one connected platform. Clients use the software for invoices, expenses, receipt capture, payments, bank feeds, and reconciliation.
Their accountants handle bookkeeping, tax filings, year-end accounts, payroll, VAT, registrations, and contact with HMRC. The service runs on a monthly subscription and clients can add or change services as their business develops. Support is available through the platform, on-demand accounting queries, and scheduled video calls with the accounting team.
Address: Unit W8A, The Knoll Business Centre, 325-327 Old Shoreham Road, Hove, BN3 7GS
Facebook: www.facebook.com/CountOnCrunch
Twitter: x.com/CountOnCrunch
LinkedIn: www.linkedin.com/company/countoncrunch
Instagram: www.instagram.com/countoncrunch
AccTek
AccTek is a cloud-based accounting firm working with UK startups, SaaS businesses, agencies, contractors, and other early-stage companies. They use Xero for bookkeeping, reporting, bank feeds, receipt capture, and financial dashboards. Their accountants stay involved through monthly check-ins, quarterly tax planning, and communication by Slack, email, phone, and the firm’s client portal.
Their finance work goes beyond annual filings and includes cash flow modelling, investor reporting, board packs, R&D claims, SEIS, EIS, EMI schemes, and due diligence preparation. AccTek also uses an AI finance assistant called Nella, which reads reconciled Xero data and answers questions about runway, burn rate, cash flow, and operating metrics. Formal tax advice and filings remain with the accounting team.
Daniel Wolfson & Co is an accountancy practice within the DNS Group, working with startups, limited companies, sole traders, and owner-managed businesses. Their team includes client managers, accountants, tax specialists, and management accountants who deal with financial reporting, tax, VAT, budgeting, and general business queries.
They provide both traditional accountancy and online services, with an emphasis on direct advice and clear explanations. Their work covers bookkeeping, accounts, payroll, tax returns, company administration, and management reporting. Clients deal with named team members who look after routine compliance as well as financial issues that arise while the business is growing.
Key Highlights:
Part of the DNS Group
Team of accountants, tax specialists, and client managers
Wellers is a firm of accountants and statutory auditors with offices in London, Oxford, Thame, and Banbury. They work across accounting, tax, audit, and business advisory services, with a strong focus on long-term client relationships. Their teams look at the people behind the business as well as the figures, taking time to understand commercial goals, operational pressures, and wider personal circumstances.
Their accountants handle compliance work while also dealing with business planning and professional advice. The firm is registered by the Association of Chartered Certified Accountants to carry out audit work in the UK and Ireland. Their working style centres on direct communication, reliability, and taking action before an issue becomes more difficult to manage.
Key Highlights:
Offices in London, Oxford, Thame, and Banbury
ACCA-regulated statutory audit firm
Relationship-led working style
Business and personal tax expertise
Accounting and professional advisory services
Proactive approach to client issues
Services:
Business accounting
Statutory accounts
Tax compliance
Tax planning
Statutory audit
Business advisory
Management reporting
Financial planning
Payroll
VAT
Company secretarial work
Personal tax
Corporate tax
Specialist sector accounting
Contact information:
Website: www.wellersaccountants.co.uk
Phone: +44 (0)333 241 6000
Address: 8 King Edward Street, Oxford, England, OX1 4HL
FHP Accounting provides accounting services to startups, small businesses, property companies, landlords, and individuals across the UK. They work with new business owners on choosing a legal structure, registering with HMRC and Companies House, setting up a bank account, and arranging VAT or payroll registrations. Their service is adjusted around the type of business and the level of ongoing work required.
The firm also handles bookkeeping, statutory accounts, tax returns, company secretarial duties, and outsourced finance work. Xero is used for cloud bookkeeping, while the property side of the practice covers commercial property, residential management companies, service charge accounting, landlords, and property tax. Their accountants work directly with clients and remain involved as the business moves from setup into regular reporting and compliance.
Most startups do not choose an accountant on technical qualifications alone. The decision usually comes down to how clearly the firm communicates, whether they understand the pace of an early-stage business, and how well their services match what the company actually needs now. A founder preparing for investment will look for different support than a small team that mainly needs bookkeeping, payroll, and tax filings kept under control.
That is why it helps to compare firms by more than a list of services. Their reporting style, use of software, experience with funding schemes, access to senior advisers, and ability to handle more complex work as the business grows all matter. Some startups prefer a fully online setup with fixed monthly packages. Others want regular calls, detailed forecasting, or broader finance support.
This guide brings those differences into one place. It is not a ranking, and there is no single accountant that suits every startup. The aim is to make the choice less vague by showing how each firm works, what they cover, and where their focus sits. With that context, founders can narrow the options and have a more useful first conversation before committing.
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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