Company lists · Data refreshed September 2026

Top 25 Blockchain software development companies based in London, United Kingdom

Name: Blockchain software development 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 2, 2026 158 companies tracked

RevenueBase identified 158 company matches for blockchain software development companies associated with London, United Kingdom as of September 2026 and tracks 1,446 professional contacts across them, including 404 with verified work emails and 61 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for blockchain software development companies associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 2, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 2, 2026 How this list was built

158Companies

1,446Contacts tracked

404Verified emails

61Mobile numbers

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The 25 largest blockchain software development companies based in London, United Kingdom

Ranked by team size

Top 25 of 158 company matches for blockchain software development companies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 2, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Nethermind	Exact match	London, United Kingdom	201-500	261 contacts →
	Exact match “Nethermind has a world class team of builders and researchers with expertise in Ethereum, protocol engineering, layer 2 scaling, decentralized finance, smart contracts development…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
2	Webbylab	Exact match	London, United Kingdom	51-200	104 contacts →
	Exact match “Since 2011, we’ve been developing client-driven solutions by integrating cutting-edge combinations of the newest IT technology with efficient processes.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
3	Primafelicitas	Exact match	London, United Kingdom	51-200	90 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
4	Applied Blockchain	Exact match	London, United Kingdom	51-200	76 contacts →
	Exact match “Applied Blockchain is a specialised development studio advising and delivering blockchain and privacy solutions tailored to a company's specific needs.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
5	Ment Tech	Exact match	London, United Kingdom	51-200	74 contacts →
	Exact match “World Leading Blockchain Products & Services Provider.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
6	PEIKO	Exact match	London, United Kingdom	51-200	74 contacts →
	Exact match “Peiko is a company that develops the most demanding and technically complex web projects, enhancing products for all major IT markets in the world.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
7	Smart Sight Innovations	Exact match	London, United Kingdom	51-200	65 contacts →
	Exact match “Smart Sight Innovations (SSI) is an agile, progressive IT company with a workforce being tech-savvy, updated, upgraded, and innovative company.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
8	EXYTE	Exact match	London, United Kingdom	11-50	57 contacts →
	Exact match “We are a team of developers and designers.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
9	DLT Apps	Exact match	London, United Kingdom	51-200	50 contacts →
	Exact match “We are an innovative engineering team, focused on transforming financial services globally.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
10	CML Team LTD	Exact match	London, United Kingdom	11-50	38 contacts →
	Exact match “We are a professional team of senior software engineers with more than 10 years of experience in Java, Web, and Mobile technology stacks.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
11	Gattaca	Exact match	London, United Kingdom	11-50	19 contacts →
	Exact match “Gattaca is a venture-backed crypto research and technology company.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
12	Web3 Labs	Exact match	London, United Kingdom	11-50	17 contacts →
	Exact match “Web3 Labs is a leading blockchain technology firm specialising in decentralised infrastructure solutions.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
13	Kodelab	Exact match	London, United Kingdom	11-50	16 contacts →
	Exact match “At KodeLab, we believe in shaping the future with the right understanding and technological edge, leading companies towards unprecedented success.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
14	Blockchain Reply	Exact match	London, United Kingdom	1,001-5,000	15 contacts →
	Exact match “Reply has pioneered the application of blockchain technology and created a group of specialized analysts, consultants and techie people able to support the Fintech industry…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
15	Coinsetters Web3	Exact match	London, United Kingdom	11-50	14 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
16	COSX	Exact match	London, United Kingdom	11-50	13 contacts →
	Exact match “At CosX, we use AI and new-age technology to drive business transformation.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
17	AVARA	Exact match	London, United Kingdom	51-200	10 contacts →
	Exact match “Avara is a software technology company, renowned for building innovative web3 products based on blockchain technologies.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
18	Dentoro Lumiere	Exact match	London, United Kingdom	11-50	10 contacts →
	Exact match “We're a software engineering company with experience in building world-scale products.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
19	Ondemandworld 点应科技	Exact match	London, United Kingdom	11-50	6 contacts →
	Exact match “New Blockchain and AI based solution coming in 2024 AssetTech – Tokenisation Solution based on ERC-1400 STO standard with public and private Ethereum-based chain support Niftnack…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
20	Coinque Consulting	Exact match	London, United Kingdom	11-50	5 contacts →
	Exact match “CoinQue has a strong understanding of how Blockchain and Cryptocurrency or any other domain works in blockchain technology companies.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
21	Horizont Labs	Exact match	London, United Kingdom	11-50	5 contacts →
	Exact match “Horizont Labs is a software development company based in London.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
22	TECXA	Exact match	London, United Kingdom	11-50	5 contacts →
	Exact match “TECXA is a forward-thinking cybersecurity, artificial intelligence, and digital trust consulting firm delivering strategic security solutions for modern enterprises, financial…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
23	Buckchaf	Exact match	London, United Kingdom	11-50	5 contacts →
	Exact match “Engage in Blockchain with ease” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
24	Cynopia LTD	Exact match	London, United Kingdom	11-50	4 contacts →
	Exact match “CYNOPIA LTD is a full-spectrum Web3 actionable consulting firm (business consulting, software development, customers engagement) that helps brands and manufacturers to lower…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
25	Itealist	Exact match	London, United Kingdom	51-200	3 contacts →
	Exact match “We are a leading provider of software services, helping businesses bring their innovative ideas to life.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “blockchain software development companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 158 blockchain software development companies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 404 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Blockchain software development companies based in London, United Kingdom at a glance

As of Sep 2, 2026

27.9%Verified-email coverage

4.2%Mobile-number coverage

9.2Average contacts per company

1-10Median size (employees)

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with London, United Kingdom whose business descriptions match “blockchain software development companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 404 professional contacts with verified work emails across the full matched dataset. 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 2, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “blockchain software development companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 158 company matches for blockchain software development companies associated with London, United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Nethermind tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most blockchain software development companies?

London leads the United Kingdom with 174 company records, followed by Manchester (8) and Glasgow (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 404 professional contacts with verified work emails tracked across these 158 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 2, 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 SmartSearch, 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.