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The 100 largest venture-backed startups in the United Kingdom

Tamtam tracks 172 venture-backed startups headquartered in the United Kingdom. This list ranks the 100 largest by number of employees on LinkedIn, led by Revolut, Howden and Wise. Their median headcount is 446. Half of them were founded in 2015 or later. The most common headquarters are London (84), Cambridge (2) and Manchester (2).

πŸ‡¬πŸ‡§ United Kingdom100 companiesUpdated Oct 9, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Revolutrevolut.com

A fintech company on a mission to provide customers with more visibility, control, and freedom over their money through innovative products

Financial Services πŸ‡¬πŸ‡§ London 18,462 2015
2
Howdenhowdengroupholdings.com

Employee-owned insurance group specializing in broking, reinsurance, underwriting, risk consultancy, and employee benefits with global expertise.

Insurance πŸ‡¬πŸ‡§ London 15,000 1994
3
Wisewise.com

Platform enabling individuals and businesses to hold multiple currencies, transfer money internationally, and spend abroad with low fees.

Financial Services πŸ‡¬πŸ‡§ London 11,769 2011
4
Octopus Energyoctopus.energy

providing affordable, transparent renewable energy solutions with innovative technology and exceptional customer service across multiple countries and sectors

Utilities πŸ‡¬πŸ‡§ London 5,415 n/a
5
Moniepoint Groupmoniepoint.com

A leading fintech company offering digital payment solutions, credit access, and business management tools to help businesses worldwide grow and succeed

Financial Services πŸ‡¬πŸ‡§ London 5,413 2015
6
Monzomonzo.com

A mobile-first bank focused on solving problems, treating customers fairly, and being transparent to make banking better

Financial Services πŸ‡¬πŸ‡§ London 5,267 2015
7
Depopdepop.com

A fashion marketplace promoting buying and selling of sustainable fashion globally, with a focus on diversity and inclusivity in the industry

Software Development πŸ‡¬πŸ‡§ London 4,473 2011
8
SumUpsumup.co.uk

A global financial technology company supporting over 4 million small merchants in 36 markets, committed to environmental and social causes

Financial Services πŸ‡¬πŸ‡§ London 4,186 2012
9
Infobipinfobip.com

Global leader in omnichannel engagement, providing messaging tools and solutions for customer engagement, authentication, and security with a strong focus on quality engineering

IT Services and IT Consulting πŸ‡¬πŸ‡§ London 3,501 2006
10
Tidetide.co

Leading fintech providing UK and Indian SMEs with business accounts, banking services, and admin tools Award-winning with global recognition and funding

Financial Services πŸ‡¬πŸ‡§ London 3,323 2015
11
Starlingstarlingbank.com

This company is a digital bank offering fast technology, fair service, and honest values, focused on solving customer problems and building sustainable solutions

Banking πŸ‡¬πŸ‡§ London 3,231 2014
12
eToroetoro.tw

Social investment platform connecting 40 million users, offering investments in stocks, digital assets, and CFDs (excluding US where cryptoassets only).

Financial Services πŸ‡¬πŸ‡§ London 2,719 2007
13
Dr. Martens plcdrmartens.com

Design and manufacture of iconic British air-cushioned boots known for durability, comfort, and association with rebellious subcultures worldwide.

Retail πŸ‡¬πŸ‡§ London 2,539 n/a
14
Checkout.comcheckout.com

A financial technology company providing a high-performance payments platform for enterprise and scaling businesses worldwide, processing payments, payouts, and managing card programs

Financial Services πŸ‡¬πŸ‡§ London 2,343 2012
15
Eburyebury.com

Specializes in international payments, foreign exchange, trade finance, and cash management solutions primarily for SMEs and mid-sized companies.

Financial Services πŸ‡¬πŸ‡§ London 2,025 2009
16
Dojodojo.careers

A scaling fintech company empowering businesses and diners with fast funding, payments, smart integrations, virtual queues, and restaurant bookings through innovative technology

Financial Services πŸ‡¬πŸ‡§ London 1,841 2019
17
True Potential LLPtruepotential.co.uk

The company provides technology, services, and administrative support to help financial advisers enhance their businesses and serve their clients effectively

Financial Services πŸ‡¬πŸ‡§ Newcastle upon Tyne 1,328 2007
18
Selinaselina.com

Designer accommodation blending coworking, wellness, and local recreation for nomadic travelers across urban cities and remote beaches through repurposed buildings in twenty-five countries.

Hospitality πŸ‡¬πŸ‡§ London 1,306 2014
19
ElevenLabselevenlabs.io

It develops AI audio models for speech and sound effects, enabling content creation, localization, and accessibility for various industries.

Research Services πŸ‡¬πŸ‡§ London 1,291 2022
20
Teyateya.com

A pan-European company offering hassle-free payment solutions, business management tools, and growth potential for businesses globally

Financial Services πŸ‡¬πŸ‡§ London 1,140 2019
21
BrewDogbrewdog.com

A global craft beer company founded in Scotland, BrewDog is known for its innovative brews, numerous bars, and passionate community of Equity Punks

Food and Beverage Services πŸ‡¬πŸ‡§ Aberdeenshire 1,125 2007
22
Facultyfaculty.ai

The company develops and implements safe AI systems integrating human and artificial intelligence for optimized performance

Technology, Information and Internet πŸ‡¬πŸ‡§ London 1,073 2014
23
Capital on Tapcapitalontap.com

Provides small business credit cards with spend management tools, quick funding access, employee expense control, and cashback rewards.

Financial Services πŸ‡¬πŸ‡§ London 1,055 2012
24
Zopa Bankzopa.com

A pioneering force in finance, creating simple, fair, and honest financial products with customer feedback at the heart of their mission

Financial Services πŸ‡¬πŸ‡§ London 1,048 2005
25
Wayvewayve.ai

Leader in AI-driven autonomous vehicle technology, pioneering AV20 for fleet operators to unlock benefits at scale Diverse team focused on breakthrough solutions

Software Development πŸ‡¬πŸ‡§ London 1,028 2017
26
Rapydrapyd.net

Enable global commerce with comprehensive payment and fintech solutions for businesses, developers, and consumers to send, receive, and manage funds easily

Financial Services πŸ‡¬πŸ‡§ London 925 n/a
27
Allica Bankallica.bank

A leading UK fintech company dedicated to supporting small and medium businesses with modern technology, local relationships, and personalized banking services

Financial Services πŸ‡¬πŸ‡§ London 910 2019
28
Freshafresha.com

Online marketplace connecting consumers with beauty and wellness businesses, offering appointment booking, payment, and comprehensive business management software.

Software Development πŸ‡¬πŸ‡§ London 903 2015
29
Quantexaquantexa.com

Global platform connecting siloed systems to visualize complex relationships, providing single views of data for risk mitigation and strategic organizational decision making.

Software Development πŸ‡¬πŸ‡§ London 895 2016
30
GoCardlessgocardless.com

Facilitating seamless and efficient payment collections directly from customers' bank accounts, eliminating late payments, chasing customers, and expensive fees for businesses worldwide

IT Services and IT Consulting πŸ‡¬πŸ‡§ London 856 2011
31
Kudakuda.com

A fintech company in Africa providing accessible, affordable, and rewarding financial services through a money app, including free transfers, budgeting, investments, and instant credit

Financial Services πŸ‡¬πŸ‡§ London 809 2019
32
Synthesiasynthesia.io

AI-powered video creation platform enabling companies to produce videos in 140 languages, saving significant time and budget costs.

Software Development πŸ‡¬πŸ‡§ London 800 2017
33
TerraPayterrapay.com

This company headquartered in the UK specializes in simplifying cross-border payments worldwide, providing access to even the most inaccessible markets

Financial Services πŸ‡¬πŸ‡§ London 743 2014
34
Kaluzakaluza.com

Energy software company enabling energy suppliers to streamline operations, enhance customer service, and drive decarbonisation through smart technology solutions

Technology, Information and Internet πŸ‡¬πŸ‡§ London 710 n/a
35
Cleoweb.meetcleo.com

AI-powered platform providing personalized financial insights and tools through a chat assistant to improve users' money management and saving habits.

Financial Services πŸ‡¬πŸ‡§ London 686 2016
36
Beauty Piebeautypie.com

Premium beauty products manufactured in top labs worldwide, offered directly to members at lower prices than traditional luxury retail.

Retail πŸ‡¬πŸ‡§ London 686 2016
37
OakNorthoaknorth.co.uk

digital bank offering bespoke credit and banking services to UK and US businesses with Β£1m-Β£100m turnover, supporting growth

Financial Services πŸ‡¬πŸ‡§ London 680 2015
38
WINGSTOP UK (Lemon Pepper Holdings Ltd)wingstop.co.uk

The company is the UK master franchisee of Wingstop, an international fast casual restaurant chain, with exclusive rights to operate in the United Kingdom

Restaurants πŸ‡¬πŸ‡§ London 666 2017
39
Marshmallowmarshmallow.com

A purpose-driven company using technology to provide fairer insurance prices for marginalized customers, addressing unique problems others overlook

Financial Services πŸ‡¬πŸ‡§ London 650 2017
40
iwocaiwoca.co.uk

Providing hassle-free finance solutions for small businesses, with a focus on opportunities rather than problems, using award-winning credit risk engine and API integrations

Financial Services πŸ‡¬πŸ‡§ West End 588 2012
41
Thought Machinethoughtmachine.net

Development of a cloud-native, microservices-based core banking platform designed to replace legacy systems and modernize banking infrastructure.

Software Development πŸ‡¬πŸ‡§ London 526 2014
42
9fin9fin.com

9fin provides debt market intelligence using AI to predict deals, deliver comprehensive market insights, analyze legal risks, and search bond/loan documents efficiently

Financial Services πŸ‡¬πŸ‡§ London 520 2016
43
PPROppro.com

Fintech company offering digital payment infrastructure for businesses and banks to streamline checkout, acquiring, and risk services through one connection

Financial Services πŸ‡¬πŸ‡§ London 509 2006
44
Castorebit.ly

This company creates high-quality sportswear with advanced engineering and technical fabrics to help athletes improve their performance in all conditions

Sporting Goods Manufacturing πŸ‡¬πŸ‡§ Manchester 492 2016
45
ComplyAdvantagecomplyadvantage.com

Empowers businesses to eliminate financial crime using AI, a unified platform, and risk intelligence for KYC, AML, and sanctions reviews.

Software Development πŸ‡¬πŸ‡§ London 485 2014
46
Luminanceluminance.com

AI-powered legal technology automating contract generation, negotiation, and analysis with advanced tools like chatbot, risk identification, and process automation for legal teams worldwide

Software Development πŸ‡¬πŸ‡§ Cambridge 466 2015
47
Payhawkpayhawk.com

AI-native spend management platform. Orchestrates global money across bills, cards, expenses, travel, procurement for control, automation, savings. Provides global money account.

Financial Services πŸ‡¬πŸ‡§ London 465 2018
48
Matillionmaia.ai

Offers AI Data Automation platform for building data products, moving teams from maintenance to ownership with AI agents, context engine, and enterprise foundation.

Software Development πŸ‡¬πŸ‡§ Salford 461 n/a
49
Podpodenergy.com

Leading provider of electric vehicle charging solutions for homes, public spaces, and workplaces, making clean energy easy, affordable, and accessible.

Energy Technology πŸ‡¬πŸ‡§ London 453 2009
50
Epos Noweposnow.com

Global provider of innovative, customizable payment and till systems, empowering businesses to unleash growth and maximize profits through affordable solutions

Software Development πŸ‡¬πŸ‡§ Norwich 446 2011
51
LoopMeloopme.com

A technology company leveraging artificial intelligence to enhance brand advertising performance and outcomes

Advertising Services πŸ‡¬πŸ‡§ London 440 2012
52
Benthanksben.com

A global flexible benefits platform reshaping the world of work by connecting the benefits ecosystem for better outcomes and work-life integration

Software Development πŸ‡¬πŸ‡§ London 424 2019
53
Tandem Banktandem.co.uk

Specializes in savings, lending, and green finance products using innovative technology to help customers manage money and support sustainability.

Banking πŸ‡¬πŸ‡§ Blackpool 423 2013
54
InstaDeepinstadeep.com

It specializes in decision-making AI, applying machine learning across various sectors, and focuses on knowledge sharing and nurturing talent.

Software Development πŸ‡¬πŸ‡§ London 405 2014
55
Paddlepaddle.com

Manages global payments complexity for SaaS and digital product companies, handling payments, currencies, fraud, billing support, and sales tax compliance.

Software Development πŸ‡¬πŸ‡§ London 405 n/a
56
Soldosoldo.com

A fintech company offering a spend management platform with smart cards and expenses app, automating employee and business spending processes Expanding throughout Europe

Financial Services πŸ‡¬πŸ‡§ London 401 2014
57
Once For Allonceforall.com

A European provider of supply chain management solutions for the construction industry, helping with sourcing, tracking sales, risk management and compliance, and increasing efficiency

Software Development πŸ‡¬πŸ‡§ Basingstoke 400 2020
58
Smart Pensionsmart.co

Provide secure, innovative workplace pension schemes with strong governance, digital experience, and global financial backing for employee retirement savings.

Financial Services πŸ‡¬πŸ‡§ London 391 2014
59
Zappjustzapp.com

Premium convenience delivery app in London, leveraging technology to provide a hand-picked product range for on-demand delivery 24/7, backed by notable investors and industry experts

Retail πŸ‡¬πŸ‡§ London 381 2020
60
Paysendlinktr.ee

A global payment ecosystem enabling online money transfers in any currency, with cross-network operability and partnerships with major card networks

Financial Services πŸ‡¬πŸ‡§ London 377 2017
61
TransferGotransfergo.com

A fast-growing fintech scale-up offering online money transfers to over 160 countries with high speeds, low fees, and no hassle

Financial Services πŸ‡¬πŸ‡§ London 371 2012
62
WorldRemitworldremit.com

Simplifies international money transfers. Creates faster, easier, and lower-cost money transfers to 150 countries for over 4 million customers, helping families globally.

Financial Services πŸ‡¬πŸ‡§ London 364 2010
63
XYZ Realityxyzreality.com

Provides real-time project controls and augmented reality for construction, helping teams achieve unmatched precision, reduce costs, prevent delays, and deliver high-quality projects faster.

Software Development πŸ‡¬πŸ‡§ London 363 2017
64
DICEdice.fm

Platform for fans to experience live shows. Offers music, festivals, club nights, and streams from various artists to global audiences.

Entertainment Providers πŸ‡¬πŸ‡§ London 347 2014
65
Immersiveimmersivelabs.com

Focuses on people-centric cyber resilience, aiming for organizations to be threat-ready and capable of demonstrating this readiness to leadership and stakeholders.

Computer and Network Security πŸ‡¬πŸ‡§ Bristol 335 2017
66
Liberisliberis.com

Embedded finance platform empowering small businesses with accessible funding solutions, enabling growth and job creation through innovative receivables finance model

Financial Services πŸ‡¬πŸ‡§ London 317 2007
67
Ohmeohme-ev.com

An end-to-end electric charging solutions provider for homes, businesses, and on-the-go, supporting the global transition to renewables

Appliances, Electrical, and Electronics Manufacturing πŸ‡¬πŸ‡§ London 310 2017
68
Wheelywheely.com

Luxury services company combining technology and high standards to offer on-demand chauffeuring, concierge services, and personalized tasks for discerning clients

Software Development πŸ‡¬πŸ‡§ London 310 2010
69
Peakpeak.ai

AI platform optimizing inventories and pricing for global industry leaders, delivering rapid performance gains and increased revenues and efficiency.

Software Development πŸ‡¬πŸ‡§ Manchester 304 2015
70
Curvecurve.com

A FinTech company simplifying spending, sending, saving money with a focus on connected customer experience through an Operating System for Money

Financial Services πŸ‡¬πŸ‡§ London 290 2015
71
Evotixevotix.com

It provides smart solutions for managing health and safety activities, ensuring transparency, immediate action on events, and building leadership confidence.

Software Development πŸ‡¬πŸ‡§ London 283 1996
72
Bloom & Wildbloomandwild.com

Direct-to-consumer flower company delivering fresh, carefully packed letterbox flowers and bouquets across Europe with innovative customer experience.

Retail πŸ‡¬πŸ‡§ London 283 2013
73
Featurespacefeaturespace.com

Global leader in Enterprise Financial Crime prevention with real-time machine learning software to prevent fraud and Anti-Money Laundering for financial institutions worldwide

Software Development πŸ‡¬πŸ‡§ Cambridge 279 2008
74
Glassboxbit.ly

AI platform capturing and analyzing user interactions across digital channels to optimize experiences, enhance loyalty, and prevent fraud for enterprises.

Software Development πŸ‡¬πŸ‡§ London 278 2010
75
Humahuma.com

A global digital health technology company utilizing AI to enhance digital-first care delivery and research, offering regulated software for various health applications

Software Development πŸ‡¬πŸ‡§ London 278 2011
76
Mimicamimica.ai

Mimica develops AI-driven software that learns tasks through observation, eliminating manual programming efforts and making automation accessible to everyone

Software Development πŸ‡¬πŸ‡§ London 275 2018
77
Primerprimer.io

Primer provides unified infrastructure for global payments and commerce, empowering merchants to optimize performance, build at pace, and achieve growth

Financial Services πŸ‡¬πŸ‡§ London 275 2020
78
Open Cosmosopen-cosmos.com

A company focused on solving global challenges through satellite missions and data collection from space, designing, building, launching, and operating small satellites

Defense and Space Manufacturing πŸ‡¬πŸ‡§ Harwell 274 2015
79
Shop Circleshopcircle.co

A leading provider of e-commerce tools empowering independent brands to create consumer-friendly experiences and helping sellers scale their businesses

Technology, Information and Internet πŸ‡¬πŸ‡§ London 272 2021
80
Accurxaccurx.com

Accurx facilitates seamless communication and collaboration among patients and healthcare professionals to improve outcomes and enhance the healthcare system

Software Development πŸ‡¬πŸ‡§ London 271 2016
81
Vertovertofx.com

Global B2B payments solution facilitating instant money transfers in over 200 countries for startups, SMEs, and large companies

Financial Services πŸ‡¬πŸ‡§ London 261 2017
82
Sokinsokin.com

The company offers multi-currency accounts, seamless cross-border transactions, and competitive FX rates to simplify global money transfers for individuals and businesses

Financial Services πŸ‡¬πŸ‡§ London 257 2019
83
Lystlyst.com

Global fashion shopping platform providing access to luxury products from thousands of brands through AI-powered search, discovery, and personalized customer inspiration tools.

Retail Apparel and Fashion πŸ‡¬πŸ‡§ City of London 256 2010
84
hyperexponentialhyperexponential.com

This company transforms the insurance industry by using decision intelligence, combining actuarial expertise with technology to enable quicker, smarter decision-making and improve productivity

Software Development πŸ‡¬πŸ‡§ London 254 2017
85
Chip – your wealth appgetchip.uk

Provides a single platform for users to save money, invest, and manage their finances to build long-term wealth effectively.

Financial Services πŸ‡¬πŸ‡§ London 253 2017
86
10x Banking10xbanking.com

A cloud-based core banking platform transforming banking experiences by enhancing customer satisfaction, operational efficiency, and societal impact

Software Development πŸ‡¬πŸ‡§ London 252 2016
87
INSTANDAinstanda.com

INSTANDA offers a no-code insurance product design platform, integrated with existing systems, enabling quick product launches and cost savings with exceptional customer experience

Software Development πŸ‡¬πŸ‡§ London 243 2012
88
Urbanicurbanic.com

Global fashion company using advanced technology to provide sustainable clothing while balancing creativity and social responsibility in rapidly expanding emerging consumer markets.

Retail Apparel and Fashion πŸ‡¬πŸ‡§ London 241 2019
89
Ducodu.co

Providing a no-code, cloud-native AI platform to automate and manage mission-critical data, reducing manual work and operational costs.

Software Development πŸ‡¬πŸ‡§ London 240 2010
90
Signal AIsignal-ai.com

AI-powered platform delivering real-time reputation and risk insights by analyzing global external data to help leaders identify trends and opportunities.

Software Development πŸ‡¬πŸ‡§ London 240 2013
91
Form3form3.tech

fully managed cloud-native payment platform offering scalable, efficient, and API-first payment infrastructure services for regulated financial institutions worldwide

Financial Services πŸ‡¬πŸ‡§ London 231 2016
92
YuLifeyulife.com

The company delivers innovative group life insurance with a wellness-focused approach that improves lives, engages employees, and benefits businesses and society

Insurance πŸ‡¬πŸ‡§ London 228 2016
93
Dexorydexory.com

This company develops robotics and AI logistics solutions to optimize warehouse operations and drive better business decisions through automation and real-time data analysis

Robotics Engineering πŸ‡¬πŸ‡§ Wallingford 223 2022
94
Apex Group Ltd (Channel Islands)apexgroup.com

Global financial services provider offering a wide range of services to asset managers, capital markets, private clients, and family offices in over 50 countries

Financial Services πŸ‡¬πŸ‡§ St Peter Port 223 2003
95
Vortexavortexa.com

This company tracks $3 trillion of waterborne energy trades to provide real-time global energy flow insights for energy and shipping companies

Software Development πŸ‡¬πŸ‡§ London 220 2016
96
BCB Groupbcbgroup.com

Leading crypto payment services provider offering payments, FX, liquidity, custody, and instant settlements network to major industry clients worldwide Banking the global crypto industry

Financial Services πŸ‡¬πŸ‡§ London 220 2017
97
Aza Financeazafinance.com

An international fintech firm offering foreign exchange, payments, settlement, and treasury services worldwide for moving money, exchanging currencies, and making payments across African and G20 currencies instantly.

Financial Services πŸ‡¬πŸ‡§ London 220 2013
98
iProoviproov.com

A global leader in biometric face verification for organizations, preventing identity theft and cybercrime while enhancing online service accessibility and safety

Software Development πŸ‡¬πŸ‡§ London 219 2011
99
Sonasona.ai

Sona provides a modern app for frontline workers to improve productivity, communication, scheduling, and feedback in various industries

Software Development πŸ‡¬πŸ‡§ London 213 2021
100
Genesis Globalgenesis.global

Genesis Global accelerates innovation in financial markets with a software development platform, prepackaged solutions, and expertise in capital markets, enabling rapid application development for leading financial institutions

Software Development πŸ‡¬πŸ‡§ London 204 2015

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 9, 2026.

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