Company lists · Data verified August 2026

Top 24 Blockchain consulting firms based in Spain

Name: Blockchain consulting firms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 132 companies tracked

There are 132 blockchain consulting firms headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 1,189 professional contacts across them, including 135 with verified work emails and 13 with mobile numbers. Madrid is the largest hub.

This list covers blockchain consulting firms headquartered in Spain, 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.

132Companies

1,189Contacts tracked

135Verified emails

13Mobile numbers

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The 24 largest blockchain consulting firms based in Spain

Ranked by team size

Top 24 of 132 blockchain consulting firms based in Spain, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Nter Tech Services	Madrid	201-500	409	44
2	Iobuilders	Madrid	51-200	80	39
3	S&m Services	Bilbao	51-200	30	3
4	ZOKYO	Barcelona	11-50	24	6
5	Berformance Group	Marbella	11-50	24	5
6	Metlabs	A Coruna	11-50	19	1
7	Crypto Plaza	Madrid	1-10	13	3
8	Pala Blockchain	Barcelona	11-50	12	6
9	TK Analytics Group	Murcia	11-50	12	1
10	Minos Global	Alicante	11-50	11	2
11	Xpander Powered By Teknia	Almussafes	11-50	8	2
12	SPC Serviceprofit Consulting	Madrid	11-50	8	2
13	SBG	Madrid	1-10	8	1
14	Blocklack	Barcelona	1-10	7	2
15	Go2chain	Gijon	1-10	7	1
16	Beltsys	Malaga	1-10	4	2
17	Airtrace	Madrid	1-10	4	1
18	Trustedbrand	Barcelona	11-50	3	1
19	Criptoservicios	Valencia	1-10	3	1
20	BTC Consulting 360	Madrid	1-10	2	1
21	Witwaker	Vigo	1-10	2	1
22	ALFA	Barcelona	1-10	2	1
23	MISET	Malaga	1-10	1	1
24	Uniclau	Barcelona	1-10	1	1

Showing 24 of 132 blockchain consulting firms based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 135 reachable decision-makers.

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Blockchain consulting firms based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 42 HQs

13Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Blockchain consulting firms by metro

Metro	Companies
Blockchain consulting firms in Madrid	42
Blockchain consulting firms in Barcelona	25
Blockchain consulting firms in Valencia	5
Blockchain consulting firms in Malaga	5
Blockchain consulting firms in Alicante	4
Blockchain consulting firms in Murcia	2
Blockchain consulting firms in Sabadell	2

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 Spain.
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; 1 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 Spain?

There are 132 blockchain consulting firms headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Nter Tech Services, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most blockchain consulting firms?

Madrid leads with 42 headquartered companies, followed by Barcelona (25) and Valencia (5).

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 135 verified decision-maker contacts tracked across these 132 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.