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LeadWave
Updated October 2026

787 SaaS Companies in London (2026)

LeadWave's database lists 787 SaaS companies headquartered in London, United Kingdom. Finance is the most common category among them. Below are the largest, with their headcount, funding, LinkedIn and CEO.

Companies
787
In LeadWave's database, October 2026
Total funding raised
$14.6B
Across 301 funded companies
Median headcount
19
Of 531 with a known headcount
Median year founded
2016
Of 755 with a known year

The largest SaaS companies in London

The top 30 of 787, strongest matches first, then by size. Headcount is the latest known figure.

The largest SaaS companies in London
CompanyWebsiteEmployeesHeadcountFundingLinkedInCEO
1Aonaon.com10,000+——LinkedInMark Brockinton
2PeoplePerHourpeopleperhour.com1,001–5,0004,100$10.5MLinkedInMohamed Moustafa
3Infobipinfobip.com1,001–5,0003,041$200MLinkedInSilvio Kutic
4imimobileimimobile.com1,001–5,000—$13MLinkedInJay Patel
5Checkout.comcheckout.com1,001–5,000——LinkedInGuillaume Pousaz
6SumUpsumup.com1,001–5,0002,741$1.4BLinkedInDaniel Klein
7ElevenLabselevenlabs.io1,001–5,0001,500$792MLinkedInAmy Hancock
8Snyksnyk.io501–1,0001,225$752MLinkedInAssaf Hefetz
9N-ablen-able.com1,001–5,0001,056$27.6MLinkedInJohn Pagliuca
10Gettgett.com501–1,000944$928MLinkedInMatteo de Renzi
11Mercansmercans.com1–10900—LinkedInRaed Alhelo
12GoCardlessgocardless.com501–1,000——LinkedInMatt Robinson
13Investis Digitalinvestisdigital.com501–1,000——LinkedInMyles Peacock
14Oysteroysterhr.com201–500572$74.2MLinkedInTony Jamous
15Payhawkpayhawk.com51–200477—LinkedInHristo Borisov
16MOOmoo.com201–500464$9.7MLinkedInRichard Moross
17Isomorphic Labsisomorphiclabs.com201–500430$4.9BLinkedIn—
18Unibuddyunibuddy.com201–500423$32MLinkedInDiego Fanara
19Verticevertice.one—419—LinkedInRoy Tuvey
20Paddlepaddle.com201–500397$93.3MLinkedInChristian Owens
21Mewsmews.com201–500355$41.6MLinkedInMatthijs Welle
22Freshafresha.com201–500—$185MLinkedInWilliam Zeqiri
23Asite Solutionsasite.com201–500——LinkedInNathan Doughty
24Broadbeanbroadbean.com201–500——LinkedInAlex Fourlis
25Cerillioncerillion.com201–500——LinkedInDebra Blake
26Lead Forensicsleadforensics.com201–500——LinkedInPaul Thomas
27LoopUploopup.com201–500——LinkedInSteve Flavell
28PPROppro.com201–500——LinkedInPhilipp Bock
29Rapydrapyd.net201–500——LinkedInOmer Priel
30Thought Machinethoughtmachine.net201–500——LinkedInPaul Taylor

SaaS companies in London at a glance

  • The largest is Aon, with more than 10,000 employees.
  • 301 have disclosed funding, $14.6B in total; 14 raised $100M or more.
  • Half were founded before 2016, and 17% in 2020 or later.
Top categoriesCompanies in London on each industry list
Company sizeEmployees, for 765 companies with a known size
  • 1–10272 · 36%
  • 11–50324 · 42%
  • 51–200126 · 16%
  • 201–50031 · 4%
  • 501–1,0004 · 1%
  • 1,001–5,0007 · 1%
  • 5,001–10,0000 · 0%
  • 10,000+1 · 0%
Year foundedFor 755 companies with a known founding year
  • Before 200014 · 2%
  • 2000–200978 · 10%
  • 2010–2014183 · 24%
  • 2015–2019348 · 46%
  • 2020–2022112 · 15%
  • 2023 or later20 · 3%
Funding raisedTotal disclosed funding, for 303 companies
  • Under $1M78 · 26%
  • $1M–5M89 · 29%
  • $5M–10M44 · 15%
  • $10M–50M69 · 23%
  • $50M–100M9 · 3%
  • $100M–500M7 · 2%
  • $500M–1B3 · 1%
  • $1B+4 · 1%

How this list was built

A company is on this list if its headquarters, as recorded in LeadWave's database, is in London. Different spellings of the city count as one, and so do its districts: Brooklyn and Manhattan are part of New York City.

The data comes from LeadWave's database of SaaS and AI companies, last updated in October 2026. Companies that share a website are counted once. Headcount, funding and CEO come from public sources, so some fields are blank for smaller companies.

More SaaS company lists

Frequently asked questions

LeadWave's database lists 787 SaaS companies in London as of October 2026. This page shows the 30 largest; the full list, with CEO contacts, is part of our 15,000+ SaaS companies list.