Company lists · Data refreshed September 2026

Top 12 Blockchain consulting firms based in Estonia

RevenueBase identified 63 blockchain consulting firms headquartered in Estonia as of September 2026 and tracks 598 professional contacts across them, including 120 with verified work emails. Tallinn is the largest hub.

This list covers blockchain consulting firms headquartered in Estonia, 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 14, 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 14, 2026 86% judged on-target in blind review
63Companies
598Contacts tracked
120Verified emails
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The 12 largest blockchain consulting firms based in Estonia

Ranked by team size
Top 12 of 63 blockchain consulting firms based in Estonia, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to blockchain consulting firms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceTallinn City, EstoniaHQ checked Sep 14, 202651-200172 contacts →

Partial evidence

“Hacken is an end-to-end blockchain security and compliance partner for digital assets.”

Source: RevenueBase Database · checked Sep 14, 2026
2Partial evidenceTallinn, EstoniaHQ checked Sep 14, 2026201-500132 contacts →

Partial evidence

“IdeaSoft is a leading blockchain development company that helps startups and enterprises build cutting-edge solutions.”

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidenceTallinn, EstoniaHQ checked Sep 14, 2026n/a33 contacts →

Partial evidence

“We help Crypto, Web3 & Blockchain startups get VC funding & grow.”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceTallinn, EstoniaHQ checked Sep 14, 202611-5031 contacts →

Indirect evidence

“Manimama is a law firm.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceTallinn, EstoniaHQ checked Sep 14, 202611-5013 contacts →

Indirect evidence

“Dizair is a technology-oriented company with a deep understanding of software development.”

Source: RevenueBase Database · checked Sep 14, 2026
6Strong evidenceTallinn, EstoniaHQ checked Sep 14, 202611-505 contacts →

Strong evidence

“Trusted smart contract audits and blockchain consulting since 2017.”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceTallin, EstoniaHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“Beltsys Labs es una empresa especializada en el desarrollo de soluciones basadas en tecnología blockchain, web3 e inteligencia artificial.”

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceTallinn, EstoniaHQ checked Sep 14, 20261-103 contacts →

Partial evidence

“Software and consulting agency.”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceCity Centre, EstoniaHQ checked Sep 14, 20261-102 contacts →

Partial evidence

“We are a leading consulting firm that offers a comprehensive range of services to businesses of all sizes worldwide.”

Source: RevenueBase Database · checked Sep 14, 2026
10Strong evidenceTallinn, EstoniaHQ checked Sep 14, 20261-102 contacts →

Strong evidence

Consulting and development in cryptography, blockchain, smart contracts, Information security, zero-knowledge proofs etc”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceTallinn, EstoniaHQ checked Sep 14, 20261-101 contacts →

Partial evidence

“0x Marketing is the first nomad digital marketing agency specializing in the Blockchain sector, Cryptocurrencies, NFTs, DeFi, metaverses, etc.”

Source: RevenueBase Database · checked Sep 14, 2026
12Strong evidenceTallinn, EstoniaHQ checked Sep 14, 20261-101 contacts →

Strong evidence

Consulting startups, FinTech companies, innovators and unconventional entrepreneurs on AML, financial crime risk, blockchain technologies, company establishment and crypto…”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 12 of 63 blockchain consulting firms based in Estonia

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Blockchain consulting firms based in Estonia at a glance

As of Sep 14, 2026
20.1%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
74.6%Largest-city concentration · Tallinn
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
37
11-50
19
51-200
6
201-500
1

Email recency for this list is measured worldwide rather than for Estonia, so it is reported there. Company counts and contact totals on this page are exact for Estonia, over 63 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 consulting firms, 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 Estonia whose own description of what they do matches “blockchain consulting firms”. 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 consulting firms), 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 consulting firms, and records with no verified work email. Companies headquartered outside Estonia 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, 120 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 14, 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 consulting firms by metro

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 consulting firms, 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 consulting firms are there based in Estonia?

RevenueBase identified 63 blockchain consulting firms headquartered in Estonia 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?

Hacken, Blockchain Security & Compliance, headquartered in Tallinn City, tops this list with the largest team on record.

Which city has the most blockchain consulting firms?

Tallinn leads with 47 headquartered companies, followed by Tallin (3) and Kesklinna Linnaosa (1).

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 120 verified decision-maker contacts tracked across these 63 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 14, 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.