Company lists · Data refreshed September 2026

Top 24 Blockchain technology companies based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 7, 2026 192 companies tracked

RevenueBase identified 192 blockchain technology companies headquartered in London, United Kingdom as of September 2026 and tracks 3,224 professional contacts across them, including 540 with verified work emails and 264 with mobile numbers. London is the largest hub.

This list covers blockchain technology companies headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 7, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 7, 2026 86% judged on-target in blind review

192Companies

3,224Contacts tracked

540Verified emails

264Mobile numbers

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The 24 largest blockchain technology companies based in London, United Kingdom

Ranked by team size

Top 24 of 192 blockchain technology companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to blockchain technology companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Nethermind	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	201-500	263 contacts →
	“Nethermind has a world class team of builders and researchers with expertise in Ethereum, protocol engineering, layer 2 scaling, decentralized finance, smart contracts development…” Source: company website · checked Sep 7, 2026
2	Webbylab	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	103 contacts →
	“Since 2011, we’ve been developing client-driven solutions by integrating cutting-edge combinations of the newest IT technology with efficient processes.” Source: company website · checked Sep 7, 2026
3	Primafelicitas	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	92 contacts →
	“Started in 2013 with offices in San Francisco, London, and Delhi, PrimaFelicitas is a bleeding-edge Custom Software development company at the forefront of core end-to-end Web3…” Source: company website · checked Sep 7, 2026
4	Applied Blockchain	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	77 contacts →
	“Applied Blockchain is a specialised development studio advising and delivering blockchain and privacy solutions tailored to a company's specific needs.” Source: company website · checked Sep 7, 2026
5	DLT Apps	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	50 contacts →
	“We are an innovative engineering team, focused on transforming financial services globally.” Source: company website · checked Sep 7, 2026
6	Mwan Mobile	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	41 contacts →
	“MWAN Mobile provides products, software development services and consulting in the Blockchain, Fintech & Mobile payments and the Mobile and Digital space.” Source: company website · checked Sep 7, 2026
7	Trikon	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	39 contacts →
	“At Trikon, we’re reimagining blockchain technology for a world that demands simplicity, accessibility, and innovation.” Source: company website · checked Sep 7, 2026
8	TRACR	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	37 contacts →
	“TracrTM is an advanced technology platform developed by De Beers Group to underpin trust in diamond provenance.” Source: company website · checked Sep 7, 2026
9	Gattaca	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	20 contacts →
	“Gattaca is a venture-backed crypto research and technology company.” Source: company website · checked Sep 7, 2026
10	Kodelab	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	17 contacts →
	“At KodeLab, we believe in shaping the future with the right understanding and technological edge, leading companies towards unprecedented success.” Source: company website · checked Sep 7, 2026
11	Web3 Labs	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	16 contacts →
	“Web3 Labs is a leading blockchain technology firm specialising in decentralised infrastructure solutions.” Source: company website · checked Sep 7, 2026
12	Coinsetters Web3	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	15 contacts →
	“Coinsetters is a financial consulting company founded in March 2022 that has quickly become a trusted partner for over 45 major projects in the crypto industry and beyond.” Source: company website · checked Sep 7, 2026
13	DCM	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	13 contacts →
	“Reliable solutions are not built overnight, they require patience, discipline, and a vision of how banking can work tomorrow.” Source: company website · checked Sep 7, 2026
14	Fideumhq	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	13 contacts →
	“Fideum is a dynamic fintech firm on a mission to streamline the digital transformation of financial institutions, banks, and SMEs with a turn-key, regulatory-compliant and…” Source: company website · checked Sep 7, 2026
15	Appold	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	11 contacts →
	“Appold is an independent, award-winning blockchain advisory firm supporting financial institutions, asset managers, listed companies and blockchain-native organisations.” Source: company website · checked Sep 7, 2026
16	Argedor Information Technologies	Strong evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	11 contacts →
	“ARGEDOR is a London-based technology company that specializes in providing innovative and advanced blockchain solutions to businesses and end-users.” Source: company website · checked Sep 7, 2026
17	Analytiq Global LTD	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	1-10	11 contacts →
	“Analytiq Global, headquartered in London, is an agile IT services and consultancy firm that blends deep technical expertise with strategic business insight.” Source: company website · checked Sep 7, 2026
18	Flexychain	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	10 contacts →
	“We have really good experience in developed from the scretch projects-Hardware for projects (cold wallets, miners, smarthome)-market making algorithms (providing market making…” Source: company website · checked Sep 7, 2026
19	Super HOW Group	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	51-200	9 contacts →
	“SH Group designs, engineers, and deploys critical digital infrastructure across finance, governance, and sovereign systems.” Source: company website · checked Sep 7, 2026
20	COWA	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	9 contacts →
	“Next-Gen Blockchain and AI Infrastructure” Source: company website · checked Sep 7, 2026
21	Blockchain Sensei	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	1-10	8 contacts →
	“We primarily work in education and solutions, being for high net worth individuals, corporations, family offices, football clubs, musicians, universities and also retail clients.” Source: company website · checked Sep 7, 2026
22	SAXON	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	7 contacts →
	“Saxon is committed to institutionalising the capital raising process for blockchain-enabled businesses through: 1) Thematic research and company due diligence.” Source: company website · checked Sep 7, 2026
23	Horizont Labs	Indirect evidence	London, United KingdomHQ checked Sep 7, 2026	11-50	6 contacts →
	“Horizont Labs is a software development company based in London.” Source: company website · checked Sep 7, 2026
24	Blocklytics	Partial evidence	London, United KingdomHQ checked Sep 7, 2026	1-10	5 contacts →
	“We deliver blockchain data” Source: company website · checked Sep 7, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: blockchain technology companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names blockchain technology companies.
Partial evidence: Its own public description names part of blockchain technology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name blockchain technology companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 24 of 192 blockchain technology companies based in London, United Kingdom

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Blockchain technology companies based in London, United Kingdom at a glance

As of Sep 7, 2026

16.7%Verified-email coverage

8.2%Mobile-number coverage

16.8Average contacts per company

1-10Median size (employees)

67.2%Largest-city concentration · London

Sep 7, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

5070–30

3131–60

061–90

090–180

2180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among blockchain technology companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “blockchain technology companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names blockchain technology companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among blockchain technology companies, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 540 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 7, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Blockchain technology companies by metro in the United Kingdom

Blockchain technology companies in London129

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names blockchain technology companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many blockchain technology companies are there based in London, United Kingdom?

RevenueBase identified 192 blockchain technology companies headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

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 technology companies?

London leads with 129 headquartered companies, followed by Glasgow (4) and Manchester (4).

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 540 verified decision-maker contacts tracked across these 192 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 7, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.