Company lists · Data verified August 2026

Top 23 Energy audit services based in Spain

Name: Energy audit services based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 202 companies tracked

There are 202 energy audit services headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 1,165 professional contacts across them, including 76 with verified work emails and 20 with mobile numbers. Madrid is the largest hub.

This list covers energy audit services 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.

202Companies

1,165Contacts tracked

76Verified emails

20Mobile numbers

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The 23 largest energy audit services based in Spain

Ranked by team size

Top 23 of 202 energy audit services 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	NESS	Madrid	11-50	83	8
2	Grupo Emececuadrado	Caceres	11-50	32	1
3	Naturelek Energía E Ingeniería	Derio	51-200	30	10
4	Ge&pe	Sevilla	11-50	30	5
5	Energy Tools	Terrassa	11-50	28	8
6	ZULUX	Santa Pola	11-50	27	3
7	Letter Ingenieros	Granada	11-50	26	1
8	Ahorrenergia	Madrid	51-200	16	1
9	Gen0	Madrid	11-50	15	3
10	Future Motors Iberia	Madrid	11-50	12	2
11	Zuia Ingeniería	Vitoria-Gasteiz	11-50	10	1
12	Zontak Energía	n/a	11-50	8	3
13	Fusiona Mantenimientos S.A	Madrid	11-50	8	2
14	Creo Gestores Energéticos, S.L	Burgos	1-10	5	4
15	Engipro Energy	Mataro	11-50	5	3
16	EIF Solar	Madrid	1-10	5	1
17	Ebuilding	Madrid	1-10	4	1
18	Rozo Ibérica	Barcelona	51-200	3	2
19	GCT Plus Eficiència Energètica	Manresa	1-10	3	1
20	Estalviaenergia	Rubi	1-10	3	1
21	Certificadosbaratos	Madrid	1-10	2	1
22	Cóendar Energy Control	Barcelona	11-50	1	1
23	Gesterval	Valencia	1-10	1	1

Showing 23 of 202 energy audit services based in Spain

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Energy audit services based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 38 HQs

20Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

148

11-50

51-200

201-500

501-1,000

Energy audit services by metro

Metro	Companies
Energy audit services in Madrid	38
Energy audit services in Barcelona	16
Energy audit services in Valencia	10
Energy audit services in Zaragoza	6
Energy audit services in Malaga	5
Energy audit services in Las Palmas De Gran Canaria	5
Energy audit services in Sevilla	4

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 “energy audit services”, 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; 0 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 energy audit services are there based in Spain?

There are 202 energy audit services headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most energy audit services?

Madrid leads with 38 headquartered companies, followed by Barcelona (16) and Valencia (10).

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 76 verified decision-maker contacts tracked across these 202 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.