Company lists · Data verified August 2026

Top 25 Energy efficiency software companies based in Spain

Name: Energy efficiency software companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 317 companies tracked

There are 317 energy efficiency software companies headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 2,532 professional contacts across them, including 301 with verified work emails and 39 with mobile numbers. Madrid is the largest hub.

This list covers energy efficiency software companies 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.

317Companies

2,532Contacts tracked

301Verified emails

39Mobile numbers

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The 25 largest energy efficiency software companies based in Spain

Ranked by team size

Top 25 of 317 energy efficiency software companies 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	Isotrol	Sevilla	201-500	396	52
2	NESS	Madrid	11-50	83	8
3	Energisme	Madrid	51-200	62	38
4	Smilics Technologies	Terrassa	11-50	55	9
5	Smarkia	Leon	51-200	52	9
6	Spacewell Energy Dexma	Barcelona	51-200	50	18
7	Cambioenergetico	Campos	51-200	42	1
8	Naturelek Energía E Ingeniería	Derio	51-200	30	10
9	Ge&pe	Sevilla	11-50	30	5
10	Energy Tools	Terrassa	11-50	28	8
11	Inergy	Barcelona	11-50	28	5
12	ZULUX	Santa Pola	11-50	27	3
13	Teslights	Barcelona	11-50	24	2
14	IEQSY	Tres Cantos	11-50	23	4
15	Exclusivas Energeticas	n/a	11-50	22	3
16	Greemko, Green Management Technology	Madrid	11-50	20	5
17	Encore Efficiency SE	Madrid	11-50	16	10
18	Luzía Energía	Mairena Del Aljarafe	51-200	16	3
19	Gese Integral DE Servicios Energéticos	Leioa	11-50	15	2
20	NOA Soluciones Energeticas SL	Ocana	51-200	14	4
21	Future Motors Iberia	Madrid	11-50	12	2
22	BSE Renovables	Huercal Overa	51-200	10	1
23	Fusiona Mantenimientos S.A	Madrid	11-50	8	2
24	Coanatur Energia Y Ambientes SL	Castello De La Plana	11-50	8	1
25	Energy Tricolor Asesoría Energética Y Soluciones Sostenibles	Garrucha	11-50	8	1

Showing 25 of 317 energy efficiency software companies based in Spain

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Energy efficiency software companies based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 68 HQs

39Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

197

11-50

51-200

201-500

501-1,000

Energy efficiency software companies by metro

Metro	Companies
Energy efficiency software companies in Madrid	68
Energy efficiency software companies in Barcelona	34
Energy efficiency software companies in Valencia	13
Energy efficiency software companies in Sevilla	12
Energy efficiency software companies in Malaga	8
Energy efficiency software companies in Alicante	5
Energy efficiency software companies in Cordoba	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 efficiency software companies”, 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 efficiency software companies are there based in Spain?

There are 317 energy efficiency software companies headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Isotrol, headquartered in Sevilla, tops this list with the largest team on record.

Which city has the most energy efficiency software companies?

Madrid leads with 68 headquartered companies, followed by Barcelona (34) and Valencia (13).

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 301 verified decision-maker contacts tracked across these 317 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.