Company lists · Data refreshed September 2026

Top 25 Renewable energy consulting firms based in Barcelona, Spain

Name: Renewable energy consulting firms based in Barcelona, Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 88 companies tracked

RevenueBase identified 88 renewable energy consulting firms headquartered in Barcelona, Spain as of September 2026 and tracks 1,618 professional contacts across them, including 141 with verified work emails. Madrid is the largest hub.

This list covers renewable energy consulting firms headquartered in Barcelona, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

88Companies

1,618Contacts tracked

141Verified emails

Explore all 88 companies → Free signup · no credit card · 500 free credits

The 25 largest renewable energy consulting firms based in Barcelona, Spain

Ranked by team size

Top 25 of 88 renewable energy consulting firms based in Barcelona, Spain, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names renewable energy consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Iplan Gestión IntegralStrong evidence	Barcelona, SpainHQ checked Sep 5, 2026	501-1,000	363
	“Iplan is a company related to the engineering services of projects developed mainly in the energy sector, civil works, renewable energies and environment.” Source: company website · checked Sep 5, 2026
2	AESAPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	n/a	351
	“Ingeniería y Consultoría Energética orientada a la búsqueda y el desarrollo de soluciones energéticas de alta eficiencia para sus Clientes.” Source: company website · checked Sep 5, 2026
3	Enerside EnergyPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	51-200	205
	“Enerside is a fast-growing, fully integrated solar photovoltaic platform with a global presence and headquarters in Barcelona, Spain.” Source: company website · checked Sep 5, 2026
4	EACOMIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	51-200	90
	“EACOM S.A.(Enginyers i Arquitectes, Consultors d'Obres i Muntatges S.A.) es una sociedad privada consultora de servicios y actividades de ingeniería, que nace con las obras…” Source: company website · checked Sep 5, 2026
5	Erf, Energia & Sostenibilitat - WattegaStrong evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	33
	“With over 20 years of expertise in the environmental sector, ERF-Energy and Sustainability is a significant firm in the strategic environmental consulting industry that it has…” Source: company website · checked Sep 5, 2026
6	Energía LocalPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	27
	“Somos una consultora especializada en el ámbito energético y sostenibilidad.” Source: company website · checked Sep 5, 2026
7	AdymusPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	24
	“Consultora energética dedicada al desarrollo de proyectos de Eficiencia Energética y Energías Renovables.” Source: company website · checked Sep 5, 2026
8	Biosphere FluxPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	15
	“Biosphere Flux es una empresa de la nueva economía, formada por jóvenes emprendedores y que está resuelta en el fomento de las tecnologías en EFICIENCIA ENERGÉTICA y en la…” Source: company website · checked Sep 5, 2026
9	SoluxionsIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	13
	“Nuestra visión no es solo la de una economía sostenible, sino también la de la propia empresa que busca ser más competitiva.” Source: company website · checked Sep 5, 2026
10	EU WasteIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	12
	“EUWASTE is a leading engineering and sustainability company with a presence in Barcelona and Buenos Aires.” Source: company website · checked Sep 5, 2026
11	Greenflex EspañaPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	501-1,000	12
	“Desde 2009, GreenFlex es el socio clave en la transformación energética, medioambiental y social de las organizaciones, permitiéndoles cambiar su trayectoria hacia una economía…” Source: company website · checked Sep 5, 2026
12	Soren Energia SLPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	9
	“SOREN Energia és una Empresa de Serveis Energètics (ESE).” Source: company website · checked Sep 5, 2026
13	Vallcorba EnginyersIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	8
	“Vallcorba Enginyers es una empresa especialitzada en oferir serveis professionals d'enginyeria relacionats amb: obertura de negocis i naus industrials, legalizació i disseny…” Source: company website · checked Sep 5, 2026
14	Envolta EnergiaIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	6
	“We are a services company focused on sustainability and on fighting climate change.” Source: company website · checked Sep 5, 2026
15	NormawindStrong evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	5
	“NORMAWIND, Wind Energy Consulting With more than a decade of experience, NORMAWIND is a pioneer in helping wind energy developers and financial institutions invest successfully in…” Source: company website · checked Sep 5, 2026
16	QuadrifoliPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	5
	“Somos especialistas en instalaciones y en implementación de energías renovables en la edificación y el urbanismo.” Source: company website · checked Sep 5, 2026
17	Enginyeria Classe A S.L.PIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	5
	Source: company website · checked Sep 5, 2026
18	Efitekna Consultoría S.LPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	5
	“EFITEKNA es una consultoría energética con una amplia experiencia en Optimización y Desarrollo de proyectos energéticos en España, Portugal, Sudamérica y Asia.” Source: company website · checked Sep 5, 2026
19	Profine EnergíaPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	4
	“Queremos ser tu socio para ayudarte a rentabilizar los espacios de tu empresa, propiedad o comunidad que no utilizas gracias a las energías renovables.” Source: company website · checked Sep 5, 2026
20	Trama Tecnoambiental, S.LStrong evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	4
	“Trama TecnoAmbiental (TTA), based in Barcelona, Spain, is an international consulting and engineering company that specializes in distributed generation through renewable energy…” Source: company website · checked Sep 5, 2026
21	Econsultants - BarcelonaIndirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	4
	“econsultants is a group of multidisciplinary professional consultants.” Source: company website · checked Sep 5, 2026
22	TDI EnginyersPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	4
	“TDI es una ingeniería especializada en la gestión integral de proyectos de instalaciones y de estructuras, así como en la auditoría de eficiencia energética y sostenibilidad…” Source: company website · checked Sep 5, 2026
23	OFF Energy ConsultingStrong evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	3
	“Off Energy Consulting es una consultoría energética especializada en la gestión, optimización y reducción de costes en los contratos de suministro de electricidad y gas.” Source: company website · checked Sep 5, 2026
24	Rozo IbéricaPartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	51-200	3
	“Empresa consultora en eficiencia energética desde 2010, ROZO apoya a sus clientes a largo plazo para reducir de forma durable sus costes energéticos y su huella medioambiental.” Source: company website · checked Sep 5, 2026
25	Universal Energy ServicePartial evidence	Barcelona, SpainHQ checked Sep 5, 2026	11-50	3
	“En UNIVERSAL ENERGY SERVICE somos asesores energéticos para empresas y particulares.” Source: company website · checked Sep 5, 2026

Showing 25 of 88 renewable energy consulting firms based in Barcelona, Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 141 reachable decision-makers.

Free signup · no credit card

See all 88 companies

Renewable energy consulting firms based in Barcelona, Spain at a glance

As of Sep 5, 2026

1-10Median size (employees)

MadridLargest hub · 281 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole Spain list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Barcelona, over 88 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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Barcelona, Spain whose own description of what they do matches “renewable energy consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among renewable energy consulting firms, and records with no verified work email. Companies headquartered outside Barcelona 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 an evidence 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, 141 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 5, 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 consulting firms by metro in Spain

Renewable energy consulting firms in Madrid281
Renewable energy consulting firms in Barcelona88
Renewable energy consulting firms in Sevilla56
Renewable energy consulting firms in Valencia52
Renewable energy consulting firms in Zaragoza33
Renewable energy consulting firms in Malaga26

Frequently asked

How many renewable energy consulting firms are there based in Barcelona, Spain?

RevenueBase identified 88 renewable energy consulting firms headquartered in Barcelona, 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?

Iplan Gestión Integral, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most renewable energy consulting firms?

Madrid leads with 281 headquartered companies, followed by Barcelona (88) and Sevilla (56).

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 141 verified decision-maker contacts tracked across these 88 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 88 renewable energy consulting firms based in Barcelona, Spain. Start with a free account, no credit card.

Get the full list

Related lists

Renewable energy consulting firms by geography

Browse the directory

Browse: Companies home · Renewable energy consulting firms in Spain · All Spain lists · All Renewable energy consulting firms 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 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.