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10 Leading Accountants for Small Companies in London

10 Leading Accountants for Small Companies in London

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Finding the right accountant can be a game-changer for small businesses. In the bustling heart of London, where competition is fierce, having a trusted financial expert by your side can make all the difference. Dive into our curated list of the top 10 accountants in London, each handpicked for their exceptional service, expertise, and dedication to supporting small businesses.

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Menzies LLP

Menzies LLP, situated in the vibrant heart of London and its surrounding regions, is a well-respected figure in the realm of accountancy, finance, and business advisory. With a firm footprint extending from Surrey to Cardiff, they have established themselves as a mid-tier firm, offering a blend of traditional services infused with strategic commercial insights.

Delving into Menzies’ offerings, their expertise extends beyond numbers. While they provide a comprehensive range of services, some of their key areas include audit & compliance advisory, where they simplify intricate financial reporting standards, and strategic advisory that champions organisations in Environmental, Social, and Corporate Governance (ESG). Their business recovery arm extends a supportive hand to enterprises navigating challenges, and their forensic accounting services assist monetary investigations.

Moreover, Menzies’ knowledge spans diverse sectors and industries, including charities and not-for-profits, legal, manufacturing, and hospitality, while also providing tailored solutions in technology, property, retail, recruitment, and transport logistics.

The firm adopts a #BrighterThinking approach, a philosophy that resonates through every aspect of their work. Whether aiding businesses in digital transformation, giving expert witness assistance in forensic accounting, or guiding international ventures through the nuances of the UK tax landscape, Menzies foresees needs and crafts solutions.

Menzies’ accolades mirror their dedication. Having been positioned sixth in the Accountancy Age Mid-Tier Power Index and with numerous awards to their name — including Corporate Restructuring & Insolvency Team of the Year at the Credit Awards 2022 — they believe in making a tangible difference, nurturing growth, and ensuring every client feels valued. In a world where numbers tell stories, Menzies ensures every narrative is one of triumph, expansion, and brighter thinking. 


  • Headquarters: London, UK 
  • Founded: 1912
  • Email Address: N/A
  • Website:   
  • Phone Number: 020 7387 5868
  • Address: Lynton House, 7-12 Tavistock Square, London, WC1H 9LT, UK
  • Specialisation: Comprehensive Chartered Accountancy Services With a Global Reach
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TWB Accountants

Established in 2013, TWB Accountants is a West London firm providing services to small businesses in the region. It is affiliated with the Institute of Chartered Accountants in England and Wales (ICAEW) and has a certification with Xero, a cloud accounting platform.

Their services span several sectors, including:

  • Small Businesses & Start-Ups: TWB Accountants offers technology-driven solutions to assist small companies in managing their cash flow and finances. The organisation emphasises personalised interactions over call centre operations.
  • eCommerce Sellers: They give assistance to sellers on platforms such as Etsy, Amazon, and eBay, ensuring proper accounting, bookkeeping, and tax practices. 
  • Creatives: The firm has experience in assisting creative businesses in London, providing cloud accounting solutions tailored to the needs of the creative sector. They offer year-round support and access to specialists familiar with the creative industry.
  • Landlords: TWB Accountants also provides guidance on the tax implications associated with property investments, catering to both new and experienced property investors.

The organisation prioritises a personalised approach when it comes to assisting its customers and helping their companies grow.


  • Headquarters: London, UK
  • Founded: 2013
  • Email Address: [email protected]
  • Website: 
  • Phone Number: 020 3793 1703
  • Address: 7 Galena Road, London, W6 0LT, UK
  • Specialisation: Diverse Accounting Solutions With a Focus on Modern Technology, Catering to Sectors Like Small Businesses, Start-ups, Creatives, Landlords, and eCommerce Sellers
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1to1 Accountants

1to1 Accountants is a London-based firm that offers a comprehensive suite of services related to various HMRC matters. The firm has developed expertise in the Worldwide Disclosure Facility (WDF), Annual Tax on Enveloped Dwellings (ATED), and Let Property Campaign (LPC). Additionally, 1to1 Accountants is proficient in managing HMRC nudge letters, ensuring that their clients remain compliant with the relevant regulations.

Their services cater to a diverse range of customers, including small businesses, freelancers, limited companies, sole traders, tradesmen, and partnerships. Their portfolio of offerings includes annual accounts, VAT returns, bookkeeping, payroll, and corporation, capital gains, and self-assessment tax. For those in the construction sector, they also provide guidance on the Construction Industry Scheme (CIS).

1to1 Accountants give online consultations and utilise cloud-based solutions to ensure uninterrupted help. To maintain client relationships, each customer is assigned a professional account manager.


  • Headquarters: London, UK
  • Founded: 2011
  • Email Address: [email protected]
  • Website:
  • Phone Number: 033 3666 7121
  • Address: 4 Whiteleys Parade, Hillingdon, UB10 0PD, UK
  • Specialisation: Handling of Specific HMRC Matters, Including WDF, LPC, and ATED
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Fusion Accountants

Headquartered in Brentford, Fusion Accountants specialises in accounting customised for small to medium-sized enterprises (SMEs). The firm offers a range of services that cater to various sectors, including medical, eCommerce, construction, and dental. Their approach is holistic, providing business advisory and support throughout different growth stages of a company.

A significant aspect of their work is the emphasis on proactive tax planning. They focus on integrating third-party software and standardising processes to enhance operational efficiency, aiming to save clients funds and free up time for revenue-generating activities.

Each client at Fusion Accountants is paired with a qualified accountant. This ensures that the specific needs and nuances of each customer are understood and catered to, giving tailored advice and a dedicated service.

Beyond traditional services, Fusion Accountants offers guidance on Research and Development (R&D) grants for small businesses. They collaborate with Apogee Associates, an R&D specialist, to assist companies in navigating the grant application process and securing tax credit claims.

Finally, in the realm of technology, Fusion Accountants has partnerships with leading online accounting software providers QuickBooks and Xero. This integration is part of their commitment to modernising and streamlining business processes for their clientele.


  • Headquarters: London, UK
  • Founded: 2013
  • Email Address: [email protected]
  • Website:   
  • Phone Number: 020 8577 0200
  • Address: Profile West, 950 Great West Rd, Brentford, TW8 9ES, UK
  • Specialisation: Specialised Accounting and Advisory for Small Businesses, With a Focus on Proactive Tax Planning, Third-Party Software Integration, and Guidance on Research and Development (R&D) Grants
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ACCOTAX understands the unique challenges faced by smaller enterprises, especially when it comes to financial management. Unlike larger corporations, small businesses often need to make swift decisions, and ACCOTAX assists in this by providing precise financial insights. They emphasise the importance of staying abreast of monetary matters, ensuring timely payroll management, and facilitating the prompt registration of new companies.

The firm is committed to reducing paperwork. They employ sophisticated accounting software that streamlines record-keeping, allowing companies to efficiently manage invoices and receipts. This approach not only saves time but also reduces the potential for errors.

ACCOTAX believes in open communication. They engage with their clients to gain a deep understanding of their business needs. This dialogue ensures that the services offered are tailored to individual industry requirements. The firm’s expertise is rooted in years of industry experience, and its team holds qualifications from prestigious accountancy bodies, including the Association of Chartered Certified Accountants (ACCA), the Association of Accounting Technicians (AAT), and ICAEW.


  • Headquarters: London, UK
  • Founded: 2010
  • Email Address: [email protected]
  • Website:  
  • Phone Number: 020 3441 1258
  • Address: 12 London Rd, Morden, SM4 5BQ, UK
  • Specialisation: Comprehensive Accounting Solutions for Small Businesses, Emphasising Streamlined Processes and Client Communication
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TaxAgility Chartered Accountants

The next pick on our list is TaxAgility Chartered Accountants, a firm specialising in services for small businesses, including start-ups, contractors, and self-employed individuals. With years of experience, it emphasises its local presence, providing clients with easy access to their London offices.

TaxAgility’s services are designed around the unique needs of each company, offering assistance in areas such as general accounting, bookkeeping, and tax advice. They also provide support with modern tools, like others on our list, to help businesses stay on course. They focus on three main challenges faced by small companies:

  • Tax: Developing robust strategies to comply with regulations.
  • Growth: Guiding companies in scaling profitably, ensuring the necessary financial resources and keeping aspirations under control.
  • Efficiency: Addressing ineffective processes and systems and engaging in digital enablement programs to utilise the latest time-saving technologies.

TaxAgility promotes cloud-based accounting software like Xero, offering immediate access to important monetary data, receivables, invoicing, and consistent management reports. The firm serves various industry sectors, including legal, science & technology, real estate, hospitality, health & wellness, and creative agencies.


  • Headquarters: London, UK
  • Founded: 2008
  • Email Address: [email protected]
  • Website:  
  • Phone Number: 020 8108 0092
  • Address: 34 Lower Richmond Rd, Putney, London, SW15 1JP, UK
  • Specialisation: Tailored Services for Small Businesses, Including Tax Advice, Digital Enablement, and Industry-Specific Expertise
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Meer & Co. Chartered Accountants

Meer & Co. Chartered Accountants is an accountancy and consultancy practice with decades of experience in the field. The firm offers a range of services, including bookkeeping, payroll, money management, advice, and business planning. They cater to small businesses based in the UK and provide dedicated client managers who liaise with HMRC on behalf of their clients.

They emphasise the importance of choosing the right firm for a small company, highlighting the potential benefits of time-saving and brand growth. Meer & Co. offers fixed fees determined in advance and utilises a cloud-based accountancy solution that permits access from any location at any time. They specialise in serving contractors, SMEs, start-ups, limited companies (with a maximum turnover of two million pounds), and freelancers. Additionally, they extend their services to various industries, including medical practices, construction, manufacturing, franchises, and retail.


  • Headquarters: London, UK
  • Founded: 1992
  • Email Address: [email protected]
  • Website:  
  • Phone Number: 020 7987 3030
  • Address: No.1 Cochrane House, Admirals Way, Canary Wharf, London, E14 9UD, UK
  • Specialisation: Serving a Wide Range of Clients, Including Freelancers, SMEs, Contractors, and Limited Companies With Turnovers Up To £2M
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GM Professional Accountants

Another organisation that specialises in helping small businesses is GM Professional Accountants. Established over a decade ago, the firm has been recognised with awards, notably the “Most Client-Focused Business Tax & Accounting Firm” in 2023. They emphasise the importance of accurate financial records for small businesses, enabling owners to make informed decisions. One of their highlighted reports is the profit and loss account, which provides a concise overview of a company’s financial activities over a specific period.

They offer a range of services, including payroll processing, management of accounts receivable and payable, and bank reconciliations. Their team is equipped to handle the complexities of the modern business environment, ensuring that their clients receive accurate and timely financial information. GM Professional Accountants also provides year-round advisory services, assisting companies with their annual tax returns and offering guidance on economic growth and decision-making. Their client-centric approach is reflected in their efforts to keep customers informed about the latest financial changes through regular updates and tax tips.


  • Headquarters: London, UK
  • Founded: 2012
  • Email Address: [email protected]
  • Website:
  • Phone Number: 020 8396 6128
  • Address: 14 Clements Court, Clements Lane, Ilford, Essex, IG1 2QY, UK
  • Specialisation: Tailored Accounting and Financial Advisory for Small Businesses
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Wilkins Southworth

Our penultimate selection, Wilkins Southworth, is a chartered accountants firm assisting both small and larger organisations for several decades. Their expertise encompasses a broad spectrum of financial areas, from personal, property, and corporate taxation, to accounting and auditing.

They take a decided interest in the monetary affairs of their clients. This is evident in their comprehensive variety of services, which includes financial forecasting, bookkeeping, business consulting, and tax planning and compliance. These services are designed to help companies manage and make decisions about their money efficiently and decrease tax liabilities.

Furthermore, Wilkins Southworth specialises in helping small brands achieve their full potential. Their long-standing experience and current information have been instrumental in driving numerous companies in encouraging directions.

Their reputation extends beyond London, having supported brands of various sizes in Greater London and the Home counties. Their central office in Barnes is a conveniently central location in London for client consultations and interactions.


  • Headquarters: London, UK
  • Founded: 1993
  • Email Address: [email protected]
  • Website:
  • Phone Number: 020 8878 3949
  • Address: 10-12 Barnes High Street, Barnes, London, SW13 9LW, UK
  • Specialisation: Thorough Financial Services With a Focus On Small Businesses, Including Accounting, Auditing, and Diverse Tax Services
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The Numbersmith

The Numbersmith is a cloud accounting organisation and is a platinum partner to both QuickBooks and Xero, making it a highly regarded firm for small companies across the UK. Their services are centred around providing cloud accounting solutions, offering timely data, and delivering advice based on this data.

There has been a marked transition in small business accounting from traditional office-based systems to cloud-based software. This change has implications for efficiency, data entry, and data capture methods, especially when using platforms like QuickBooks and Xero. The Numbersmith has observed the benefits of this transition, with a particular emphasis on optimising cash flow management for companies.

With the introduction of Making Tax Digital (MTD), compliance with HMRC regulations has become paramount. The Numbersmith ensures this compliance by utilising cloud accounting systems that are in line with these regulations. Their services include handling overheads, processing invoices, overseeing bank transactions, VAT returns, and payroll. This approach allows their clients to access real-time monetary reports, which can be instrumental in decision-making processes and credit control.


  • Headquarters: Northampton, UK (serving London)
  • Founded: 1992
  • Email Address: [email protected]
  • Website:
  • Phone Number: 016 0434 5865
  • Address: 10 Cheyne Walk, Northampton, NN1 5PT, UK
  • Specialisation: Platinum Partner to Xero and QuickBooks, Reputable in Cloud Accounting for Small Businesses in the UK

Final Thoughts

In the heart of London, where companies thrive and competition is tough, having a reliable accountant is paramount. The small business accountants listed above not only bring expertise and precision to the table but also understand the unique challenges faced by London’s entrepreneurs. By entrusting your finances to these professionals, you’re not just getting an accountant; you’re gaining a partner dedicated to ensuring your company’s financial health and success. Remember, in the world of business, the right firm can be the difference between surviving and truly thriving.

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