Company lists · Data refreshed November 2026

Top 25 Hydrogen consultants based in Spain

RevenueBase identified 129 company matches for hydrogen consultants associated with Spain as of November 2026 and tracks 1,105 professional contacts across them, including 204 with verified work emails. Madrid is the largest hub.

This list covers company matches for hydrogen consultants associated with Spain, 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 November 6, 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 Nov 6, 2026 How this list was built
129Companies
1,105Contacts tracked
204Verified emails
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The 25 largest hydrogen consultants based in Spain

Ranked by team size
Top 25 of 129 company matches for hydrogen consultants based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLoiu, SpainHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“H2SITE provides solutions to the hydrogen transport problem.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchDos Hermanas, SpainHQ recorded Nov 6, 202611-5065 contacts →

Exact match

“H2B2 is a technology-based company that promotes, develops, finances, designs, integrates, builds, operates and maintains systems based on electrolyzers for hydrogen production…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchEpila, SpainHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“CALVERA HYDROGEN is a global player in the hydrogen infrastructure, which offer revolutionary solutions for companies and communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchTres Cantos, SpainHQ recorded Nov 6, 202611-5054 contacts →

Exact match

“ARIEMA es una compañía tecnológica fundada en 2002.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCuarte ( Huesca), SpainHQ recorded Nov 6, 202611-5046 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchPaterna, SpainHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Matteco is a cleantech company accelerating global decarbonization through next-generation advanced material technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDerio, SpainHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“Somos una ingeniería y consultora especializada en eficiencia, gestión y transformación energética para empresas, con un enfoque técnico, integral y orientado a resultados.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Somos una consultora especializada en el ámbito energético y sostenibilidad.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchVigo, SpainHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Soltec Ingenieros SL, founded in 2001, is an independent engineering and consulting firm based in Vigo, Spain.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchZaragoza, SpainHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Como ingeniería, Base Sistemas lleva años trabajando en los sectores químico y energético realizando una gran cantidad de proyectos con el hidrógeno como protagonista.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSpainHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Empresa de servicios de Ingeniería y Consultoría Energética e Industrial, que desarrolla su actividad en las áreas de:* Generación y Uso Racional de la Energía en la Industria y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchTres Cantos, SpainHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“We provide comprehensive solutions for liquid hydrogen, including designing and constructing cryogenic plants and equipment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSant Boi De Llobregat, SpainHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“EVARM es una ingeniería de integración especializada en la conversión de vehículos profesionales a combustibles alternativos, como el GLP, GNC, hidrógeno, que tienen etiqueta ECO…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHontoria, SpainHQ recorded Nov 6, 202611-509 contacts →

Exact match

“H2Greem is a leading European technology company and manufacturer of next-generation electrolyser solutions based on proton exchange membrane (PEM) technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSeville, SpainHQ recorded Nov 6, 20261-109 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchVigo, SpainHQ recorded Nov 6, 20261-109 contacts →

Exact match

“En atlantHy hacemos realidad los proyectos de hidrógeno verde gracias a nuestro conocimiento de la tecnología y del sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBarcelona, SpainHQ recorded Nov 6, 20261-108 contacts →

Exact match

“EFITEKNA es una consultoría energética con una amplia experiencia en Optimización y Desarrollo de proyectos energéticos en España, Portugal, Sudamérica y Asia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMairena Del Aljarafe, SpainHQ recorded Nov 6, 202611-508 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMadrid, SpainHQ recorded Nov 6, 20261-106 contacts →

Exact match

“We are a platform of experts in the hydrogen field with more than 50 years of accumulated experience in it.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMadrid, SpainHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Pharoes helps public and private organizations make better strategic decisions in the energy transition.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBilbao, SpainHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Our main business core is to provide services to the energy and industrial sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchO Porriño, SpainHQ recorded Nov 6, 2026201-5005 contacts →

Exact match

“HEAD UP SERVICES is a management consulting company based out of Barrio San Andrés Pontellas, 20 36412 Porriño comercial@headup.es -”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLa Rinconada, SpainHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Tempos posee una gran experiencia en los mercados energéticos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMataró, SpainHQ recorded Nov 6, 20261-104 contacts →

Exact match

“At Lexier we are technical distributors specialised in valves, fittings, tubing and instrumentation for the entire hydrogen value chain and for critical industrial processes: high…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHuesca, SpainHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Helios Aragon is a natural hydrogen producer otherwise known as "Gold" hydrogen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 129 hydrogen consultants based in Spain

See the full list, filter by size, metro and specialty, and access 204 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogen consultants based in Spain at a glance

As of Nov 6, 2026
18.5%Verified-email coverage
8.6Average contacts per company
1-10Median size (employees)
20.9%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
82
11-50
35
51-200
11
201-500
1

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 129 companies.

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 Spain whose business descriptions match “hydrogen consultants” 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 204 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 November 6, 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 “hydrogen consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrogen consultants are there based in Spain?

RevenueBase identified 129 company matches for hydrogen consultants associated with Spain as of November 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?

H2site tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hydrogen consultants?

Madrid leads with 27 company records, followed by Barcelona (9) and Seville (7).

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 204 professional contacts with verified work emails tracked across these 129 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 November 6, 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.