Company lists · Data verified August 2026

Top 25 Blockchain consulting firms based in London, United Kingdom

There are 262 blockchain consulting firms headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 3,001 professional contacts across them, including 393 with verified work emails and 192 with mobile numbers. London is the largest hub.

This list covers blockchain consulting firms headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

262Companies
3,001Contacts tracked
393Verified emails
192Mobile numbers
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The 25 largest blockchain consulting firms based in London, United Kingdom

Ranked by team size
Top 25 of 262 blockchain consulting firms 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.
#CompanyHQEmployeesContactsVerified emails
1NethermindLondon201-500261133
2PrimafelicitasLondon51-200901
3Applied BlockchainLondon51-2007643
4Plexus Resource SolutionsLondon11-507454
5EAK Digital Web3 Marketing PR & Events AgencyLondon11-502711
6Colehouse GroupLondon11-50248
7ANSGLondon51-200204
8LKI ConsultingLondon11-50172
9KodelabLondon11-50169
10Blockchain ReplyLondon1,001-5,000157
11Coinsetters Web3London11-50142
12Vibranium AuditsLondon11-50141
13FideumhqLondon11-50132
14BlockovateLondon11-50131
15AppoldLondon11-50116
16SAXONLondon11-5073
17LawbeamLondon11-5071
18Fifth9London11-5065
19Coinque ConsultingLondon11-5053
20TECXALondon11-5051
21Rainmaker PeopleLondon11-5051
22Nortaq LTDLondon11-5043
23Cynopia LTDLondon11-5042
24ItealistLondon51-20031
25Intrinsic GlobalLondon11-5031

Showing 25 of 262 blockchain consulting firms based in London, United Kingdom

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Blockchain consulting firms based in London, United Kingdom at a glance

As of Aug 28, 2026
1-10Median size (employees)
LondonLargest hub · 262 HQs
192Contacts with mobile numbers
0Emails re-verified in last 30 days

Companies by employee count

1-10
171
11-50
76
51-200
12
201-500
1
1,001-5,000
2

Blockchain consulting firms by metro in the United Kingdom

MetroCompanies
Blockchain consulting firms in London262
Blockchain consulting firms in Manchester11
Blockchain consulting firms in Birmingham6
Blockchain consulting firms in Leeds6
Blockchain consulting firms in Glasgow5
Blockchain consulting firms in Edinburgh4
Blockchain consulting firms in Northampton3

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 “blockchain consulting firms”, 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; 0 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

How many blockchain consulting firms are there based in London, United Kingdom?

There are 262 blockchain consulting firms headquartered in London, United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Nethermind, headquartered in London, tops this list with the largest team on record.

Which city has the most blockchain consulting firms?

London leads with 262 headquartered companies, followed by Manchester (11) and Birmingham (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 393 verified decision-maker contacts tracked across these 262 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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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.