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London’s 101 Fastest Growing Accounting Startups

At Best Startup London we track over 100,000 London based startups and over 500,000 people who hold key positions in these companies. We use this directory of startups to highlight top employees, founders and organisations we think deserve more appreciation than they are currently getting.

We’ve ranked the top 101 Accounting companies in London. The companies, startups and institutions listed in this article are all exceptional companies, well worth a follow. We have included links to their websites, socials and CrunchBase (if you’re interested in their financials).

We selected the organisations listed in this article based on:

  • Track record
  • Executive leadership
  • Market share
  • Innovation
  • ESG rating

Our Data – We source our data from OSINT (open source intelligence) and public directories such as CrunchbaseSemRush and many more. The data from these sources should be treated with a degree of caution and verified yourself.

Top Accounting Companies & Startups (London)


LemonEdge

FoundersGareth Hewitt, Jamie Nascimento
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LemonEdge is a low-code development platform with integrated accounting engine, designed for financial services.


TaxScouts

FoundersDan Karger, Kaupo Kõrv, Mart Abramov
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TaxScouts is a tax preparation platform that makes tax planning easier.


Countingup

FoundersTim Fouracre
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The one that does your books. Countingup is the UK’s #1 banking & accounting app. Dead easy. Super fast. Self sorting.


Fluidly

FoundersCaroline Plumb, Johnnie Ball
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Fluidly is fundamentally rethinking the way businesses plan and manage cashflow, using data science, accounting domain expertise.


Chaser

FoundersDavid Tuck, Mark Woodbridge
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Chaser helps businesses get their invoices paid on time, automatically.


Satago

FoundersAdam Horner, Steven Renwick
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Cover cashflow gaps, manage debtors and predict credit risks all in one easy-to-use product. Start your 14-day free trial today.


Capitalise.com

FoundersOllie Maitland, Paul Surtees
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Capitalise uses a little funding magic to identify the best financing options available for your business.


Ernst & Young

FoundersAlwin C Ernst, Arthur Young, Jeffrey Stier
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Ernst & Young is a provider of assurance, tax, transaction and advisory services.


Dext

FoundersAlexis Prenn, Michael Wood
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Empowering accountants and bookkeepers with the smart and forward-thinking solutions needed to make businesses better.


Pento

FoundersEmil Hagbarth Rasmussen, Jonas Bøgh Larsen
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Pento provides a SaaS-based online platform intended to optimize payroll services.


Fiskl Limited

FoundersAlina Lapusneanu, Monica Burian, Shawn Vader
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Fiskl – mobile-first global SaaS platform for managing micro-SME finances


Pixie

FoundersCelso Pinto, Jordan Vickery
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Pixie is a company for small accounting & bookkeeping firms.


Expend

FoundersJohnny Vowles, Rudolph Graan
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Expend is the expense management and company spending platform.


Deloitte

FoundersSurjadinata Sumantri, William Welch Deloitte
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Deloitte provides audit, consulting, financial advisory, risk management, tax, and other related services.


Capium Ltd

FoundersDave Jangid, Sanjay Bhiraju, Tushir Patel
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Empowering businesses and accountants, through one platform


Albert

FoundersDan Bruce, Ivo Weevers
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Albert is an innovative, fast growing technology company disrupting financial management for freelancers and the solo self-employed.


Red Flag

FoundersMattias Söderhielm, Mikael Pawlo, Niklas Derouche
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Red Flag develops an automated accounting, expenses, and invoicing platform for SMEs.


Savvy

FoundersMark Bowker
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Our firm is one of the biggest providers of short term loans in UK and also offers you the option of unsecured loans in UK.


PwC

FoundersJonathan Kogan, Martin Prescher, Samuel Lowell Price
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PricewaterhouseCoopers is an accounting firm that provides tax, HR, transactions, performance improvement, and crisis management services.


Clear Books

FoundersTim Fouracre
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Clear Books provides online accounting software that includes bookkeeping and invoicing features for small businesses.


GENIAC

FoundersEduardo Martínez Garcia, Michael Galvin
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GENIAC provides essential business services for SMEs, all in one place, and all managed on their behalf.


InstaSupply

FoundersLee Pruitt, Tim Huegdon
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We simplify buyer – supplier interactions through smart tech ☁️ Anywhere, anytime. Work smarter, grow faster! ⚡️


The Access Group

FoundersSarj Radia
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The Access Group is a software consultancy and developer company that provides fully integrated business management software.


Ember

FoundersAaron Shaw, Daniel Hogan
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Ember is a software platform to automate the accounting process for SMEs.


PayDashboard

FoundersMike Binns, Peter Turner
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PayDashboard is a truly independent interactive payslip platform for employees, employers, professional advisors and partners.


Aptitude Software

FoundersUnknown
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Aptitude Software deliver financial integration, accounting engines and other solutions.


Smarty Software

FoundersAgnes Gradzewicz, Farhad Reyazat, Hamed Jafarzade, Majid Reyazat, Reza Bakhtiary, Sepehr Boobani, Vahid Reyazat
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SaaS CRM Solution, Accounting & Bookkeeping Software, Web & App Development, White Label Solutions and more.


Brightbook

FoundersJames Henderson, Warwick Leicester
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Brightbook offers bookkeeping solutions for small business owners, freelancers, and contractors.


Tendelo

FoundersUnknown
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Tendelo’s voice accounting app helps startups and small business stay in control of their finances by simply speaking.


onkho

FoundersEmanur Rahman, Susan Rahman
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onkho helps accountants delight their clients and grow their business


Prospr

FoundersDean Robinson
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Prospr is an agile consultancy management platform for digital transformation consultancies.


RSM International

FoundersIra B. McGladrey
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RSM is the world’s 7th largest network of audit, tax and consulting firms.


Accountancy Cloud

FoundersAsima Hafesji, Wesley Rashid
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Accountancy Cloud provides the best full finance stack for startups.


Langham Hall

FoundersRob Short
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Langham Hall is an independent administrator and depositary to debt, infrastructure, private equity and real estate funds.


Quantico

FoundersUnknown
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Quantico is an accounting firm for entrepreneurs that provides accounting and tax related services.


PwC UK

FoundersUnknown
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Bringing you the latest updates and insights from PwC in the UK.


myThings

FoundersBenny Arbel
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myThings provides conversion-driven personalized display advertising solutions.


Coin Market Manager

FoundersDavid Kanzen, Gary Lee, Simeon Gabriel Howard
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Coin Market Manager is your all-in-one crypto accounting solution for traders focussed on growing their BTC stack.


Xchanging

FoundersMichael Cline
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Xchanging is one of the largest and fastest growing business processors.


https://www.pkf-littlejohn.com

FoundersUnknown
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PKF LITTLEJOHN LLP is an Independent firm of chartered accountants and business advisors, a London member of PKF International.


Finmo

FoundersJ.D. Rainey, Sei Moon
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Finmo is a financial management tool for self employed workers with a focus on improving financial health and filing taxes.


Hubshare

FoundersDamian Jeal, Nicholas Child
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Hubshare is a collaborative and secure file sharing platform that allows professionals to collaborate more effectively and efficiently.


untied

FoundersKevin Sefton, Marcus Tettmar, Richard Mann
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untied is the UK’s personal tax app, and a trusted layer between financial transactions, the tax system and individuals


KashFlow Software

FoundersDuane Jackson
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KashFlow Software is a simple but powerful, online accounting package developed with small business owners in mind.


Baker Tilly International

FoundersUnknown
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Baker Tilly International is an accounting company located in London.


Expect. (trading name of Exponential Climate Technologies Ltd.)

FoundersAnand Verma
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Expect. is the decarbonisation management platform for large enterprises and heavy industries.


Investigo

FoundersUnknown
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Investigo is offering accountancy, finance, audit, risk, compliance, property and facilities management services located in London.


TopSource

FoundersUnknown
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TopSource provides accounting, payroll and HR outsourcing services.


RSM UK Group

FoundersUnknown
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RSM UK is the Audit, tax and consulting firm.


Blick Rothenberg

FoundersUnknown
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Blick Rothenberg is a provider of accounting, audit and tax services.


Harris & Trotter

FoundersUnknown
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Harris & Trotter is a firm of chartered accountants & business advisers that offers audit, payroll, tax planning and accounting services.


Grant Thornton International

FoundersUnknown
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Grant Thornton International is a network of assurance, tax, and advisory firms that help organizations unlock their potential for growth.


Simplifi

FoundersGreg Hanton, Helen McMurtrie
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Meet Simplifi – Cloud accounting in 2020 for contractors, freelancers, and small businesses.


Rawlinson & Hunter

FoundersUnknown
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Rawlinson & Hunter is a finance based firm that deals in financial and taxation advice including fund,corporate & trust services.


ADAM Global

FoundersDr. Tahir Akhtar
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ADAM Global is the world’s leading platform for multidisciplinary professional business services including networks.


CBW

FoundersUnknown
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Carter Backer Winter LLP (CBW) is a full-service, top 50 firm of accountants, tax and business advisors based in the City of London.


1st Formations

FoundersGraeme Donnelly
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Online company formation agents in the UK


Tallysticks

FoundersKush Patel
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Tallysticks is an international trade solution for SMEs.


KPMG UK

FoundersUnknown
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KPMG UK is a global network of professional firms providing Audit, Tax and Advisory services.


Touche Ross & Co

FoundersUnknown
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Touche Ross & Co. is an accounting firm offering accounting, assurance and advisory, and more related services.


Invedus Outsourcing

FoundersUnknown
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Invedus Outsourcing is a remote employees outsourcing company. Hire dedicated virtual employees from India and save up-to 80%.


Alternative Investment Management Association

FoundersUnknown
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Founded in 1990, the Alternative Investment Management Association (AIMA) is the global representative of the hedge fund industry.


Nomisma

FoundersUnknown
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Nomisma is an accounting software that offers bookkeeping and payroll solutions.


CoinTax

FoundersRafael Dunn, Sohail Rashid
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UK Crypto Accountancy Firm


The Texel Group

FoundersUnknown
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The Texel Group renders portfolios management, documentation, risk management, accounting, credit and political risk insurance services.


ShareForce

FoundersChristo Kritzinger, Michael Ketz
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ShareForce specializes in offering cloud-based solution to manage company’s cash incentive schemes into one application.


Moore Global

FoundersUnknown
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Moore Global is a global accounting and advisory firm that offers audits, assurance, tax, advisory, and business services.


Reducer

FoundersJoe Gallard, Stuart Kemp
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Reducer empowers businesses by giving them the information needed to make smart buying decisions.


TaxTris

FoundersMarko Jujik
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Tax automation for web3-digital assets with the largest coverage in Europe.


McGregor Boyall Associates

FoundersUnknown
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McGregor Boyall Associates is a Staffing & Recruiting company located in London.


E2Exchange

FoundersUnknown
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E2Exchange is a connection based company, introducing entrepreneurs, investors, and directors.


InvoiceBerry

FoundersUwe Dreissigacker
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InvoiceBerry is a simple and fast online invoicing software. Try it yourself or contact us to learn more!


APAM

FoundersSimon Cooke, William Powell
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APAM is a specialist in UK real estate investment, asset management, financing, accounting and client reporting.


hAIbooks accounting software

FoundersUnknown
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hAIbooks accounting software is an accounting service provider company.


haysmacintyre

FoundersUnknown
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haysmacintyre is chartered accountants and tax advisors firm that provides advice to entrepreneurs, charity and non profitable company.


Ardent Tide

FoundersDermot O’Grady
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Ardent Tide is a construction services business specializing in contracting services, certainty on CIS contracting services..


UHY Hacker Young

FoundersUnknown
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UHY Hacker Young is an accounting firm that deals with audit, business advisory, consulting, finance and taxation services.


Frank Hirth

FoundersUnknown
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Frank Hirth provides tax and accounting services with a primary focus on transatlantic tax.


ACT London

FoundersUnknown
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ACT London is a chartered accountancy practice firm, which provides a wide range of accounting, taxation, compliance & advisory services.


BANKIS

FoundersUnknown
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Fake Bank Statements


1st Contact

FoundersUnknown
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1st Contact is a firm that offers both in person and online accounting and personal tax services.


MSI Global

FoundersUnknown
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MSI Global Alliance is a leading international associations of independent legal and accounting firms,


Bankstream

FoundersUnknown
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Bankstream provides a daily, secure, reliable and accurate feed of client transaction data.


BKL

FoundersUnknown
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BKL is an accounting firm that offers taxation, business consultancy, and financial services.


Iplicit

FoundersUnknown
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iplicit is the cloud-based accounting software.


mySociety

FoundersJames Cronin
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mySociety develops web tools that offer parliamentary monitoring, information freedom, and problem reporting services.


Ifinity

FoundersUnknown
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Ifinity is a accounting firm H W Fisher & Company a long time specialist in the needs of non-profit organisations.


Outbooks

FoundersUnknown
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Outbooks is a business process outsourcing company providing finance and accounts related back office services.


Kaplan Financial

FoundersUnknown
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Kaplan Financial is one of the UK’s leaders in financial and business training.


Mazars UK

FoundersUnknown
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Mazars UK is an international audit, tax and advisory firm.


Stellar Asset Management

FoundersUnknown
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Stellar Asset Management supports advisers and investors with estate planning services to provide relief from inheritance tax.


C.C. Young

FoundersColin Young
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C.C. Young & Co is an accounting firm of accountants and tax experts specializing in the music industry.


Welbeck Investment Management

FoundersIain Blakeley
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Welbeck Investment Management specializes in real estate asset management, accounting and administration services with a service approach.


Quantuma

FoundersUnknown
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Quantuma is an advisory firm specialises in insolvency & restructuring, forensic accounting, pension and financial advisory.


Firm Decisions

FoundersUnknown
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FirmDecisions, the largest independent marketing compliance provider, offers advertisers financial transparency.


Generate

FoundersUnknown
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Generate is payroll solutions specialize in payroll management, outsourced jobs, foreign services, and limited company accounting.


Aqilla

FoundersHugh Scantlebury
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Aqilla is the developer of web-based accounting solutions designed for medium-sized businesses and organisations.


Moore U.K.

FoundersUnknown
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Moore U.K. is an accounting and advisory company.


i4 Pay Partners

FoundersUnknown
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i4 is a payroll company catering for contractors, freelancers, locums and agency workers, providing a secure way of paying contractors.


Buzzacott

FoundersUnknown
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Buzzacott offers accounting and advisory services.


Lyeloon Limited

FoundersDharan Desai, Lyeloon Kazi
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We help startups manage their finance function by providing them CFO, Controller, and Bookkeeping Services at minimal cost.

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