Company lists · Data refreshed September 2026

Top 25 Renewable energy gas producers based in Spain

Name: Renewable energy gas producers based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 95 companies tracked

RevenueBase identified 95 renewable energy gas producers headquartered in Spain as of September 2026 and tracks 3,447 professional contacts across them, including 307 with verified work emails. Madrid is the largest hub.

This list covers renewable energy gas producers headquartered in Spain, 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 17, 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 17, 2026 86% judged on-target in blind review

95Companies

3,447Contacts tracked

307Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest renewable energy gas producers based in Spain

Ranked by team size

Top 25 of 95 renewable energy gas producers based in Spain, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy gas producers: 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	Redexis	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	205 contacts →
	Strong evidence “Grupo Redexis es un conjunto de sociedades de infraestructuras comprometidas con la transición energética, el desarrollo de los gases renovables y el crecimiento sostenible…” Source: RevenueBase Database · checked Sep 17, 2026
2	Greening	Strong evidence	Granada, SpainHQ checked Sep 17, 2026	501-1,000	175 contacts →
	Strong evidence “Greening is a global, vertically integrated renewable energy company that not only generates and markets its own green energy, but does so through a diversified portfolio of…” Source: RevenueBase Database · checked Sep 17, 2026
3	Verdalia Bioenergy	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	121 contacts →
	Partial evidence “Verdalia Bioenergy aims to become a leading energy transition player focused on developing, acquiring and operating biomethane plants.” Source: RevenueBase Database · checked Sep 17, 2026
4	Sitra Agua Industrial & Bioenergía	Partial evidence	Castellón, SpainHQ checked Sep 17, 2026	51-200	114 contacts →
	Partial evidence “Sitra ofrece soluciones y servicios integrales e innovadores para la gestión eficiente y sostenible del agua en la industria, de la generación de gases renovables y de la…” Source: RevenueBase Database · checked Sep 17, 2026
5	Grupo Neoelectra	Partial evidence	Sant Just Desvern, SpainHQ checked Sep 17, 2026	201-500	92 contacts →
	Partial evidence “Neoelectra es un grupo empresarial especializado en aportar soluciones energéticas eficientes a la industria.” Source: RevenueBase Database · checked Sep 17, 2026
6	Greenalia S.A	Strong evidence	A Coruña, SpainHQ checked Sep 17, 2026	51-200	87 contacts →
	Strong evidence “Greenalia is an independent renewable energy producer.” Source: RevenueBase Database · checked Sep 17, 2026
7	Univergy Solar	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	71 contacts →
	Partial evidence “Univergy Solar es una empresa hispano-japonesa especializada en el desarrollo y construcción de proyectos de energía solar, eólica y de hidrógeno verde, incluyendo soluciones de…” Source: RevenueBase Database · checked Sep 17, 2026
8	Gnera Energia	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	11-50	52 contacts →
	Partial evidence “The GNERA group was created to participate in the transition towards a new energy model, assuming the dual mission of integrating new energy sources and new technology, while…” Source: RevenueBase Database · checked Sep 17, 2026
9	Grupo HAM	Indirect evidence	Abrera, SpainHQ checked Sep 17, 2026	201-500	51 contacts →
	Indirect evidence “Grupo HAM es líder en el servicio integral de Bio GNL, Bio GNC, Biometano, GNL y GNC en industrias y entornos móviles-vehiculares.” Source: RevenueBase Database · checked Sep 17, 2026
10	Enagás Renovable	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	11-50	48 contacts →
	Strong evidence “Enagás Renovable has a portfolio of more than 20 specific projects in Spain in the field of renewable gases and decarbonisation, representing one of the largest European platforms…” Source: RevenueBase Database · checked Sep 17, 2026
11	Progressum Energy Developments	Indirect evidence	Pozuelo De Alarcón, SpainHQ checked Sep 17, 2026	11-50	41 contacts →
	Indirect evidence “Progressum was born in London in October 2012 based on values of excellence and professionalism with the aim of being a ‘Tailor Made’ company for those who wanted to develop and…” Source: RevenueBase Database · checked Sep 17, 2026
12	Ingenium	Strong evidence	Valencia, SpainHQ checked Sep 17, 2026	11-50	33 contacts →
	Strong evidence “INGENIUM GROUP is an international energy group specialized in the development and investment in renewable energy projects, with a presence in Italy, Spain, and Germany.” Source: RevenueBase Database · checked Sep 17, 2026
13	Heygaz Biomethane, S.L	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	31 contacts →
	Indirect evidence “Heygaz is focused in developing a robust and efficient biomethane platform across Europe in accordance to the higher industry standards.” Source: RevenueBase Database · checked Sep 17, 2026
14	Logos Energía	Partial evidence	Santander, SpainHQ checked Sep 17, 2026	11-50	31 contacts →
	Partial evidence “En LoGOs Energía compartimos contigo la energía que nos mueve a buscar las mejores tarifas y soluciones energéticas.” Source: RevenueBase Database · checked Sep 17, 2026
15	Inderen Ingeniería Y Desarrollos Renovables	Strong evidence	Silla, SpainHQ checked Sep 17, 2026	11-50	30 contacts →
	Strong evidence “INDEREN is a company with an important technical capacity and with a wide experience of industrial installations, we are dedicated to promoting and developing renewable energies…” Source: RevenueBase Database · checked Sep 17, 2026
16	Adelanta	Indirect evidence	Ourense, SpainHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Adelanta es un productor independiente de electricidad 100% renovable.” Source: RevenueBase Database · checked Sep 17, 2026
17	AGF Procesos Biogás S.L	Indirect evidence	Badajoz, SpainHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Technology company integrating research, engineering, construction, and operation in the field of biogas and biomethane.” Source: RevenueBase Database · checked Sep 17, 2026
18	Amda Energía	Partial evidence	Zaragoza, SpainHQ checked Sep 17, 2026	11-50	28 contacts →
	Partial evidence “Compañía especializada en la promoción, desarrollo, construcción y operación de proyectos de alto valor tecnológico en el campo de las energías renovables, siempre en un marco de…” Source: RevenueBase Database · checked Sep 17, 2026
19	Grupo Zero Waste Energy	Partial evidence	Málaga, SpainHQ checked Sep 17, 2026	51-200	27 contacts →
	Partial evidence “Zero Waste Energy es un grupo de empresas dedicadas a la producción de energía eléctrica mediante fuentes de energía renovables y cogeneración, así como al tratamiento eficiente…” Source: RevenueBase Database · checked Sep 17, 2026
20	Ascia Renovables S.L	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	24 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
21	Grupo Arrate	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	11-50	23 contacts →
	Partial evidence “Grupo Arrate surgió para cubrir la demanda existente en el sector energético, principalmente en Europa y América Latina.” Source: RevenueBase Database · checked Sep 17, 2026
22	Gestcompost	Partial evidence	Zaragoza, SpainHQ checked Sep 17, 2026	11-50	22 contacts →
	Partial evidence “GESTCOMPOST trabaja por la gestión sostenible de los recursos, el aprovechamiento energético y la valorización de residuos no peligrosos, haciendo de la economía circular el…” Source: RevenueBase Database · checked Sep 17, 2026
23	AGR Biogás	Indirect evidence	Sevilla, SpainHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “AGR Biogás es la empresa pionera en Andalucía en promoción, construcción y gestión de plantas de biogás industrial.” Source: RevenueBase Database · checked Sep 17, 2026
24	Uriel Renovables, S.A	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	1-10	18 contacts →
	Partial evidence “Uriel Renovables, S.A.(URSA) es una compañía dedicada a la promoción, construcción y explotación de proyectos de energías renovables.” Source: RevenueBase Database · checked Sep 17, 2026
25	IAM Carbonzero	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “En IAMcarbonzero, estamos a la vanguardia de la transición hacia un futuro sostenible, liderando la creación y operación de plantas de biometano de última generación.” Source: RevenueBase Database · checked Sep 17, 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: renewable energy gas producers. 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 renewable energy gas producers.
Partial evidence: Its own public description names part of renewable energy gas producers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy gas producers. 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 95 renewable energy gas producers based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 307 reachable decision-makers.

Free signup · no credit card

View the full list →

Renewable energy gas producers based in Spain at a glance

As of Sep 17, 2026

8.9%Verified-email coverage

36.3Average contacts per company

11-50Median size (employees)

34.7%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

10001+

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 95 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 renewable energy gas producers, 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 Spain whose own description of what they do matches “renewable energy gas producers”. 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 renewable energy gas producers), 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 renewable energy gas producers, and records with no verified work email. Companies headquartered outside Spain 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, 307 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 17, 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.

Renewable energy gas producers by metro

Renewable energy gas producers in Madrid33

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 renewable energy gas producers, 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 renewable energy gas producers are there based in Spain?

RevenueBase identified 95 renewable energy gas producers headquartered in Spain 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?

Redexis, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most renewable energy gas producers?

Madrid leads with 33 headquartered companies, followed by Barcelona (6) and Valencia (6).

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 307 verified decision-maker contacts tracked across these 95 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 95 renewable energy gas producers based in Spain. Start with a free account, no credit card.

Download this list →

Related lists

Renewable energy gas producers by geography

Browse the directory

Browse: Companies home · All Spain lists · All Renewable energy gas producers lists · New lists

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.