Company lists · Data refreshed September 2026
Top 25 Behind-the-meter energy optimization companies based in Spain
RevenueBase identified 185 behind-the-meter energy optimization companies headquartered in Spain as of September 2026 and tracks 1,610 professional contacts across them, including 207 with verified work emails. Madrid is the largest hub.
This list covers behind-the-meter energy optimization companies 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 16, 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.
The 25 largest behind-the-meter energy optimization companies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 61 contacts → | ||||
Partial evidence “Hybrid Energy Storage Solution Ltd.(hereinafter called HESS Ltd.) is a technological solution provider, pioneer in creating hybrid energy storage solutions (HESS), optimized in…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 57 contacts → | ||||
Indirect evidence “We provide #SmartEnergy and #SmartBuilding solutions with a clear objective; to help companies to find balance between financial peace of mind, corporate well-being, and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 53 contacts → | ||||
Strong evidence “Smarkia is the world's leading SaaS Energy Management Platform that has (R)evolutionized the Energy Optimization paradigm, worldwide.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 50 contacts → | ||||
Partial evidence “Spacewell Energy is a cloud-based Energy Intelligence Platform, trusted by over organisations across 35+ countries.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 38 contacts → | ||||
Indirect evidence “Best in class software platform for the operation of demand-response flexibility aggregation.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 30 contacts → | ||||
Partial evidence “Somos una ingeniería y consultora especializada en eficiencia, gestión y transformación energética para empresas, con un enfoque técnico, integral y orientado a resultados.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 30 contacts → | ||||
Partial evidence “GE & PE was created in 1983 with the purpose of covering the needs and increasingly complex management and efficiency tasks related to the supply and consumption of energy by…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 26 contacts → | ||||
Partial evidence “The energy market is moving faster than most retailers can keep up with.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 22 contacts → | ||||
Partial evidence “Exclusivas Energéticas es una de las empresas de gestión energética de mayor proyección en este momento, nos respaldan los numerosos casos de éxito que sumamos, una gran…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 22 contacts → | ||||
Partial evidence “En Thunder Hunter ayudamos a empresas a transformar su energía en una ventaja competitiva.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 contacts → | ||||
Partial evidence “La energía limpia y asequible para todos es uno de los mayores desafíos de nuestro tiempo.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 18 contacts → | ||||
Partial evidence “ICOENERGIA SOLUCIONES ENERGETICAS SA es una compañía con mas de 18 años de trayectoria profesional acreditada por la satisfacción de los Clientes que consideramos "Socios" por el…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 18 contacts → | ||||
Partial evidence “Optimize Energy provides tailor made energy and risk management solutions for renewable power plant owners and asset managers.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 15 contacts → | ||||
Partial evidence “Asesores energéticos especialistas en la optimización de la factura energética.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 12 contacts → | ||||
Partial evidence “energymanagement #energyefficiency #Industry4.0 #digitalisation #preventivemaintenance #IOT #BI At CO2 Smart Tech we help your organisation to be more sustainable, digital and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 12 contacts → | ||||
Partial evidence “En Pebblex diseñamos y desplegamos sistemas de almacenamiento energético que hacen la transición renovable posible.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 12 contacts → | ||||
Partial evidence “Aseprel desarrolla su actividad en el campo de la gestión informatizada y el control de la energía eléctrica desde hace más de 25 años.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Partial evidence “Impulsamos la transición energética del sector industrial con soluciones integrales y de gran escala.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Partial evidence “Energy Storage & Dispatchable Heat and Power Solutions” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Partial evidence “Asesoría energética para ahorro y eficiencia Analizamos tu consumo eléctrico y de gas de forma personalizada para optimizar y reducir costes en tu factura.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Partial evidence “Webdom Labs nace en el año 2011, con el espíritu de recoger, procesar y mostrar información del consumo energético en tiempo real.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Partial evidence “Grupo Iremar nace con una misión clara: transformar el sector energético y liberarlo de las ineficiencias y restricciones impuestas por modelos tradicionales, creando soluciones…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 8 contacts → | ||||
Partial evidence “Globeenergy, energía para todos.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 contacts → | ||||
Indirect evidence “Couce Consulting nace en 2010 con un objetivo claro Ayudar a grandes empresas, PYMES y autónomos a ahorrar en sus facturas.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Indirect evidence “Trabajamos con distribuidores, fabricantes, EPCs, integradores y modelos PPA que necesitan algo más que instalar tecnología: necesitan que cada proyecto sea rentable, defendible y…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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: behind-the-meter energy optimization companies. 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 behind-the-meter energy optimization companies.
- Partial evidence
- Its own public description names part of behind-the-meter energy optimization companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name behind-the-meter energy optimization companies. 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 185 behind-the-meter energy optimization companies based in Spain
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Behind-the-meter energy optimization companies based in Spain at a glance
As of Sep 16, 2026Companies by employee count
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 185 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 behind-the-meter energy optimization companies, 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 “behind-the-meter energy optimization companies”. 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 behind-the-meter energy optimization companies), 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 behind-the-meter energy optimization companies, 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, 207 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 16, 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.
Behind-the-meter energy optimization companies by metro
- Behind-the-meter energy optimization companies in Madrid41
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 behind-the-meter energy optimization companies, 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 behind-the-meter energy optimization companies are there based in Spain?
RevenueBase identified 185 behind-the-meter energy optimization companies 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?
Hesstec Hybrid Energy Storage Solutions LTD, headquartered in Paterna, tops this list with the largest team on record.
Which city has the most behind-the-meter energy optimization companies?
Madrid leads with 41 headquartered companies, followed by Barcelona (14) 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 207 verified decision-maker contacts tracked across these 185 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 16, 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 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.
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