20 Largest Private Tech Companies in the UK — July 2026
Last updated on 16 July 2026·Europe
These are the UK's top 20 highest valued private companies
As of July 2026, Revolut is the UK's largest private tech company, valued at $75.0B, followed by Nscale and Checkout.com, valued at $14.6B and $12.0B respectively.
The top 20 companies have combined $200B+ in value
Fintech is the UK's superpower - majority of companies on the list operate across fintech/payments
Just after the top 20, there is infamous OnlyFans - one of the UK's highest valued private tech companies, valued at $3.1B
UK's top 20 unicorns - complete list
This ranking includes 20 largest private tech companies in the UK. It might include acquired companies that operate in a standalone way. Most valuations are last reported or recently rumoured.
On ZIRP-era valuations: we exclude companies that latest reported valuation would be enough to hit the list, but it is expected that the company is now valued significantly lower.
#
1
RevolutRevolut is a London-headquartered digital banking platform serving over 40 million customers across Europe, the United States, and Asia. It provides mobile app-based services including multi-currency accounts, debit cards, international transfers, cryptocurrency exchange, commission-free stock and commodities trading, and insurance products. Founded in 2015, Revolut holds banking licenses in Lithuania and the UK.
$75.0B
18.8x
$4.0B
Nov 2025
–
2
NscaleNscale is an AI infrastructure company and global hyperscaler that builds, owns, and operates data centers and high-density GPU clusters. The neocloud startup integrates everything from renewable power generation to hardware and orchestration software to support AI training, fine-tuning, and inference workloads for enterprises and governments. Unlike traditional cloud providers, Nscale builds and operates its own data centers in regions with abundant, low-cost renewable energy (e.g., hydropower in Norway, renewables in Texas). In West Virginia, the company even owns behind-the-meter natural gas power plants to insulate operations from local grid fluctuations.
$14.6B
9.7x
$1.5B
Mar 2026
$2.0B
3
Checkout.comCheckout.com is a global payment processor supporting transactions in over 150 currencies through a unified API. It delivers in-country acquiring across more than 50 countries, advanced fraud detection powered by machine learning, and comprehensive reporting dashboards. The platform accepts all major credit and debit cards alongside local methods such as iDEAL, Alipay, and Klarna. Checkout.com maintains offices in London, New York, Singapore, and 16 other locations worldwide. Launched in 2012, it serves enterprises like Sony, Revolut, and McDonald's with scalable infrastructure for high-volume payments.
$12.0B
–
–
Sep 2025
–
4
DAZN
$10.0B
2.9x
$3.4B
–
–
5
ION Group
$9.3B
2.8x
$3.3B
–
–
6
KrakenKraken is a London-headquartered customer engagement platform for energy, water, and broadband providers across Europe and North America. Its technology stack includes billing, CRM, self-service portals, and smart metering analytics to streamline operations. Kraken serves utilities like Octopus Energy and OVO, enabling net-zero transitions through demand response and EV charging management. The platform processes millions of customer interactions monthly, supporting regulatory compliance in deregulated markets.
$8.7B
3.9x
$2.2B
Dec 2025
$1.0B
7
WayveWayve is a London-headquartered AI company building end-to-end machine learning software for self-driving vehicles. Founded in 2017, the technology enables mapless navigation by learning from driving data to handle diverse urban environments. Wayve collaborates with automakers like Nissan and has testing operations in the UK and US.
$8.6B
–
–
Feb 2026
$1.2B
8
SumUpSumUp is a financial technology company providing card readers, point-of-sale systems, and merchant financial services targeted primarily at small businesses, independent merchants, and sole traders. Founded in Berlin in 2012 and now headquartered in London, the firm operates in more than 35 countries across Europe, the Americas, Australia, and beyond, offering portable card terminals alongside online payment processing, invoicing tools, e-commerce store builders, and business accounts with debit cards. SumUp positions itself as an integrated commerce platform for micro-merchants and competes with players such as Square, Stripe, and PayPal's Zettle.
$8.5B
14.2x
$600M
Jun 2022
$619M
9
THG IngenuityTHG Ingenuity is the technology division of THG plc powering the parent company's e-commerce ecosystem. Manchester-headquartered, it supplies a proprietary cloud platform handling site management, personalization, logistics, and payments for brands including Myprotein, Lookfantastic, and Dermstore. The service supports peak traffic exceeding one million orders daily across 160 countries, enabling scalable online retail operations.
$8.0B
–
–
May 2021
$1.6B
10
FluidstackFluidStack delivers a leading AI cloud platform with supercomputing infrastructure for AI labs, governments, and enterprises, serving clients like Mistral, Meta, and Black Forest Labs.
$7.5B
41.7x
$180M
Jan 2026
$700M
11
MonzoMonzo is a London-headquartered digital bank serving customers in the United Kingdom and United States. The app provides current accounts, savings pots, overdrafts, and investment products with instant transaction notifications. Monzo issues Mastercard debit cards and offers joint accounts for shared budgeting. Expanded from prepaid cards in 2016, the bank holds a full UK banking license and operates branches in Cardiff and Manchester. Monzo integrates Open Banking APIs for seamless transfers from Barclays and Lloyds.
$5.9B
5.3x
$1.1B
Oct 2024
–
12
Blockchain.com
$5.2B
–
–
Mar 2021
$300M
13
Ineffable IntelligenceIneffable Intelligence builds machine learning systems that learn via reinforcement learning through interaction and experience in simulated or real environments. These systems form a superlearner capable of autonomous knowledge generation, adaptation, and problem-solving across domains.
$5.1B
–
–
Apr 2026
$1.1B
14
ZepzZepz is a London-headquartered fintech operating WorldRemit and Sendwave brands for international money transfers. The platform serves customers in 50 countries, facilitating remittances to over 140 destinations in Europe, Asia, Africa, Australia, and the Americas. Recipients access funds via bank deposits, cash pickup at 25,000 locations, mobile wallets, or airtime top-ups. Zepz processed billions in transfer volume annually through its digital-first model.
$5.0B
14.8x
$338M
Aug 2021
$292M
15
Fuse EnergyFuse Energy is a UK-licensed electricity supplier sourcing power from its portfolio of solar farms and onshore wind assets. Headquartered in London, it offers fixed-rate tariffs to residential customers with near real-time usage tracking via web and mobile apps, alongside integrations for smart meters and EV chargers.
$5.0B
9.1x
$550M
Jun 2026
$30M
16
LendableLendable is a London-based peer-to-peer lending marketplace matching individual investors with personal loan borrowers in the United Kingdom. The platform processes applications in minutes without paperwork, funding loans from investor deposits.
$4.7B
40.8x
$114M
Mar 2022
$276M
17
Recursive SuperintelligenceRecursive Superintelligence is an AI research firm building systems that autonomously improve via recursive self-learning. Its frameworks automate the AI development lifecycle, including experiment design, model training, evaluation, and optimization in feedback loops. The technology reduces manual engineering for scalable applications in research, enterprise deployment, and data-driven settings.
$4.7B
–
–
May 2026
$650M
18
RapydRapyd is a London-headquartered fintech-as-a-service platform that allows businesses to embed payment acceptance, payouts, card issuing, foreign exchange, and business wallet capabilities into their products through a single API. Founded in 2016, the company operates a global network spanning more than 100 countries and connects local payment methods including cards, bank transfers, e-wallets, and cash. Rapyd has scaled rapidly through acquisitions of Valitor, Korta, and Neat, and serves marketplaces, e-commerce companies, gig economy platforms, and financial institutions that need cross-border payment infrastructure without building it in-house.
$4.5B
4.5x
$1.0B
Mar 2025
$500M
19
SynthesiaSynthesia is an AI video generation platform headquartered in London, United Kingdom, converting text to videos with avatars and voiceovers in over 140 languages. Users create training and marketing content via browser templates, serving enterprises like BBC and Accenture for scalable video production.
$4.0B
40.0x
$100M
Oct 2025
$200M
20
Starling BankStarling Bank is a London-based digital bank offering personal current accounts, joint accounts, and business banking via mobile app. Launched in 2017, it provides savings spaces, overdrafts up to £5,000, and debit cards with no foreign fees. Starling serves over three million customers with FSCS protection up to £85,000.
$3.3B
13.2x
$250M
Apr 2022
$164M
Data and methodology
Underlying data
Public markets data is powered by FactSet (consensus analyst estimates), and Morningstar (historical data). Data points are calendarized to December where relevant: retrieved data on financial year ends (e.g. FY, FY+1 etc.) are mapped to calendar years (2025A, 2026E etc.) before the appropriate month weights are then applied to prior/future fundamentals.
Private transaction data is multi-sourced, aggregated from harvesting public information, 3rd party APIs, and data engineering. All data is verified and provided with an extensive manual process. If data permits, we apply our own logic to get to the EV. For example, for a large M&A deal with available information on the target's net debt, we might adjust a valuation to fully reflect an accurate EV. In all other cases, we take the reported valuation as the numerator. Financials: we source LTM revenue and LTM EBITDA data from company filings, press releases, or other verified sources. If LTM data is unavailable, we take the 'next best-fit' period (run-rate or calendar year), provided it makes sense in a given case. For example, if a deal closed in November 2025, we might take full-year 2025 revenue as a revenue benchmark.
Any raw figures are harmonised to USD for comparison purposes.
This page is built on data available at Multiples. Sign up for a free trial to see the full dataset.
