Company lists · Data refreshed September 2026

Top 25 Blockchain development companies based in the United Kingdom

Name: Blockchain development companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 273 companies tracked

RevenueBase identified 273 blockchain development companies headquartered in the United Kingdom as of September 2026 and tracks 3,613 professional contacts across them, including 737 with verified work emails. London is the largest hub.

This list covers blockchain development companies headquartered in the 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 19, 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 19, 2026 86% judged on-target in blind review

273Companies

3,613Contacts tracked

737Verified emails

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The 25 largest blockchain development companies based in the United Kingdom

Ranked by team size

Top 25 of 273 blockchain development companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to blockchain development 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	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	263 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 19, 2026
2	Parity Technologies	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	218 contacts →
	Partial evidence “Parity was founded by a visionary group of blockchain pioneers, including Dr.” Source: RevenueBase Database · checked Sep 19, 2026
3	Tech Alchemy	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	136 contacts →
	Indirect evidence “We’re Tech Alchemy, a London-based team of product people.” Source: RevenueBase Database · checked Sep 19, 2026
4	Primafelicitas	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	92 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 19, 2026
5	Applied Blockchain	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	77 contacts →
	Strong evidence “Applied Blockchain is a specialised development studio advising and delivering blockchain and privacy solutions tailored to a company's specific needs.” Source: RevenueBase Database · checked Sep 19, 2026
6	Nchain	Partial evidence	Global, United KingdomHQ checked Sep 19, 2026	201-500	62 contacts →
	Partial evidence “nChain is a global blockchain technology company and recently voted one of the Top 100 most innovative firms in the world.” Source: RevenueBase Database · checked Sep 19, 2026
7	DLT Apps	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	50 contacts →
	Indirect evidence “We are an innovative engineering team, focused on transforming financial services globally.” Source: RevenueBase Database · checked Sep 19, 2026
8	Mwan Mobile	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	41 contacts →
	Strong evidence “MWAN Mobile provides products, software development services and consulting in the Blockchain, Fintech & Mobile payments and the Mobile and Digital space.” Source: RevenueBase Database · checked Sep 19, 2026
9	CML Team LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	38 contacts →
	Indirect evidence “We are a professional team of senior software engineers with more than 10 years of experience in Java, Web, and Mobile technology stacks.” Source: RevenueBase Database · checked Sep 19, 2026
10	The Blockhouse Technology LTD	Partial evidence	Oxford, United KingdomHQ checked Sep 19, 2026	11-50	28 contacts →
	Partial evidence “Innovators of Blockchain Security Technology, Trusted by Design.” Source: RevenueBase Database · checked Sep 19, 2026
11	Trackgenesis	Partial evidence	Aberdeen, United KingdomHQ checked Sep 19, 2026	11-50	24 contacts →
	Partial evidence “TrackGenesis is an Aberdeen-based software development company helping startups, SMEs, and enterprises across Scotland and the UK navigate digital transformation.” Source: RevenueBase Database · checked Sep 19, 2026
12	Gattaca	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “Gattaca is a venture-backed crypto research and technology company.” Source: RevenueBase Database · checked Sep 19, 2026
13	Kodelab	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “At KodeLab, we believe in shaping the future with the right understanding and technological edge, leading companies towards unprecedented success.” Source: RevenueBase Database · checked Sep 19, 2026
14	Electi	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “Electi Consulting is a premier technology consultancy firm at the forefront of digital transformation.” Source: RevenueBase Database · checked Sep 19, 2026
15	Web3 Labs	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “Web3 Labs is a leading blockchain technology firm specialising in decentralised infrastructure solutions.” Source: RevenueBase Database · checked Sep 19, 2026
16	Coinsetters Web3	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 19, 2026
17	Blockchain Advisors LTD	Partial evidence	Birmingham, United KingdomHQ checked Sep 19, 2026	1-10	14 contacts →
	Partial evidence “Our mission is to enhance our clients' efficiency, fund management, and government of their blockchain assets.” Source: RevenueBase Database · checked Sep 19, 2026
18	Appold	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Appold is an independent, award-winning blockchain advisory firm supporting financial institutions, asset managers, listed companies and blockchain-native organisations.” Source: RevenueBase Database · checked Sep 19, 2026
19	Argedor Information Technologies	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “ARGEDOR is a London-based technology company that specializes in providing innovative and advanced blockchain solutions to businesses and end-users.” Source: RevenueBase Database · checked Sep 19, 2026
20	Analytiq Global LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	11 contacts →
	Indirect evidence “Analytiq Global, headquartered in London, is an agile IT services and consultancy firm that blends deep technical expertise with strategic business insight.” Source: RevenueBase Database · checked Sep 19, 2026
21	AI Dizital	Partial evidence	Slough, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “The Most Affordable Smart Blockchain Solutions.” Source: RevenueBase Database · checked Sep 19, 2026
22	Ownyourbusiness	Strong evidence	Londra, United KingdomHQ checked Sep 19, 2026	11-50	10 contacts →
	Strong evidence “Own Your Business offers its customers blockchain services and solutions through an innovative approach capable of integrating consulting skills with specialist and development…” Source: RevenueBase Database · checked Sep 19, 2026
23	Flexychain	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 19, 2026
24	Blockchain Sensei	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 19, 2026
25	SAXON	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	7 contacts →
	Partial evidence “Saxon is committed to institutionalising the capital raising process for blockchain-enabled businesses through: 1) Thematic research and company due diligence.” Source: RevenueBase Database · checked Sep 19, 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 development 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 development companies.
Partial evidence: Its own public description names part of blockchain development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name blockchain development 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 25 of 273 blockchain development companies based in the United Kingdom

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Blockchain development companies based in the United Kingdom at a glance

As of Sep 19, 2026

20.4%Verified-email coverage

13.2Average contacts per company

1-10Median size (employees)

69.2%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

155

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 273 companies.

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 development 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 the United Kingdom whose own description of what they do matches “blockchain development 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 development 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 development companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 737 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 19, 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 development companies by metro

Blockchain development companies in London189

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 development 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 development companies are there based in the United Kingdom?

RevenueBase identified 273 blockchain development companies headquartered in the 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 development companies?

London leads with 189 headquartered companies, followed by Manchester (8) and Birmingham (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 737 verified decision-maker contacts tracked across these 273 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 19, 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.