Company lists · Data verified August 2026

Top 25 Big data companies based in London, United Kingdom

Name: Big data companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 208 companies tracked

The London big data companies list contains 208 companies, 4,044 business contacts, and 634 email addresses. It is updated for August 2026, and London is the single most-represented city among the companies on the list.

Big data companies provide platforms, software, or services for collecting, storing, processing, managing, and analyzing large or complex datasets. This list covers companies that provide big data platforms, software, infrastructure, analytics, consulting, or related services. Ranked by team size, largest first. Data current as of August 28, 2026.

208Companies

4,044Contacts tracked

634Verified emails

201Mobile numbers

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The 25 largest big data companies based in London, United Kingdom

Ranked by team size

Top 25 of 208 big data companies based in London, United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Mobius Knowledge Services	London	501-1,000	1,434	60
2	DUG	London	201-500	318	38
3	Keepler Data Tech	London	201-500	224	24
4	The Information LAB	London	51-200	202	102
5	Cloudsmiths	London	51-200	150	8
6	Groupbwt	London	51-200	92	7
7	Nowasys LTD	London	11-50	71	1
8	Altius NOW Avanade	London	201-500	69	5
9	Tekcor4	London	51-200	61	45
10	Elevondata	London	51-200	52	38
11	Ometis Limited	London	11-50	39	33
12	Chisl Group	London	11-50	33	25
13	Beyond	London	51-200	32	14
14	Engine AI	London	11-50	27	16
15	Exist Management LLC Existbi	London	51-200	24	10
16	Tasman Analytics	London	11-50	23	16
17	MFG Labs	London	51-200	21	6
18	Mave Digital	London	51-200	21	1
19	Adscribe, An Ispot.Tv Company	London	11-50	19	2
20	Data Reply UK	London	11-50	18	9
21	Digital Back Office	London	11-50	16	2
22	Vizify Analytics	London	11-50	14	11
23	Analytium Group	London	11-50	14	8
24	Inference Group	London	51-200	14	6
25	DOT Group	London	11-50	13	11

Showing 25 of 208 big data companies based in London, United Kingdom

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Big data companies based in London, United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 208 HQs

201Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

132

11-50

51-200

201-500

501-1,000

1,001-5,000

Big data companies by metro in the United Kingdom

Metro	Companies
Big data companies in London	208
Big data companies in Manchester	15
Big data companies in Leeds	9
Big data companies in Birmingham	6
Big data companies in Milton Keynes	6
Big data companies in Chester	5
Big data companies in Bournemouth	5

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “big data companies”, with match quality audited by blind human judging, and headquartered in London, United Kingdom.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Contact records re-verify on a rolling cadence; 3 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

What are big data companies?

Big data companies provide platforms, software, or services for collecting, storing, processing, managing, and analyzing large or complex datasets.

How many big data companies are in the London list?

The list includes 208 big data companies based in London, United Kingdom, along with 4,044 business contacts and 634 email addresses.

Where are big data companies located?

The list includes companies based in London, United Kingdom, with London as the single most-represented city among the companies on the list.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.