Company lists · Data refreshed September 2026

Top 25 Sustainable energy consultants based in Romania

Name: Sustainable energy consultants based in Romania
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 134 companies tracked

RevenueBase identified 134 sustainable energy consultants headquartered in Romania as of September 2026 and tracks 1,544 professional contacts across them, including 325 with verified work emails. Bucharest is the largest hub.

This list covers sustainable energy consultants headquartered in Romania, 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 18, 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 18, 2026 86% judged on-target in blind review

134Companies

1,544Contacts tracked

325Verified emails

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The 25 largest sustainable energy consultants based in Romania

Ranked by team size

Top 25 of 134 sustainable energy consultants based in Romania, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable energy consultants: 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	Energobit	Partial evidence	Cluj-napoca, RomaniaHQ checked Sep 18, 2026	501-1,000	176 contacts →
	Partial evidence “We are a competitive, strong and trustworthy company in the sector of major electrical energy players.” Source: RevenueBase Database · checked Sep 18, 2026
2	ADREM	Indirect evidence	Bucharest, RomaniaHQ checked Sep 18, 2026	1,001-5,000	152 contacts →
	Indirect evidence “Adrem captures the essence of Adrem Engineering, Adrem Invest and Adrem Link.” Source: RevenueBase Database · checked Sep 18, 2026
3	Simtel	Partial evidence	Bucharest, RomaniaHQ checked Sep 18, 2026	51-200	97 contacts →
	Partial evidence “Simtel offers professional services in the telecommunication and solar energy fields.” Source: RevenueBase Database · checked Sep 18, 2026
4	AJ Brand	Strong evidence	Sector 1, RomaniaHQ checked Sep 18, 2026	501-1,000	58 contacts →
	Strong evidence “The goal of AJ BRAND is to provide sustainable and renewable energy solutions.” Source: RevenueBase Database · checked Sep 18, 2026
5	Servelect	Partial evidence	Cluj-napoca, RomaniaHQ checked Sep 18, 2026	11-50	49 contacts →
	Partial evidence “We are an engineering and energy services company based in Cluj-Napoca, specializing in the identification and implementation of solutions for optimizing energy consumption…” Source: RevenueBase Database · checked Sep 18, 2026
6	Restart Energy	Partial evidence	Timișoara, RomaniaHQ checked Sep 18, 2026	51-200	48 contacts →
	Partial evidence “Restart Energy este o companie din prima linie în domeniul energiei care deține capital mixt româno-american.” Source: RevenueBase Database · checked Sep 18, 2026
7	WIREN	Strong evidence	Arad, RomaniaHQ checked Sep 18, 2026	51-200	41 contacts →
	Strong evidence “Wiren's mission is to reshape the energy landscape by making sustainable energy universally accessible.” Source: RevenueBase Database · checked Sep 18, 2026
8	FGM Solar	Partial evidence	Oradea, RomaniaHQ checked Sep 18, 2026	201-500	40 contacts →
	Partial evidence “Fgm Solar has years of experience in the renewable energy sector and perforations.” Source: RevenueBase Database · checked Sep 18, 2026
9	ENSYS	Strong evidence	Oradea, RomaniaHQ checked Sep 18, 2026	51-200	39 contacts →
	Strong evidence “Ensys specializes in solar energy solutions and consultancy for residential and industrial users.” Source: RevenueBase Database · checked Sep 18, 2026
10	Volta X Solar Systems	Partial evidence	Piatra Neamt, RomaniaHQ checked Sep 18, 2026	51-200	34 contacts →
	Partial evidence “Volta X Solar Systems este un one-stop-shop de energie regenerabilă ce oferă soluții la cheie pentru sisteme fotovoltaice, eficiență energetică, sisteme de stocare a energiei și…” Source: RevenueBase Database · checked Sep 18, 2026
11	Energy And Environment Consulting Company	Indirect evidence	Sector 1, RomaniaHQ checked Sep 18, 2026	51-200	28 contacts →
	Indirect evidence “CCEM is your reliable partner, with an effective approach of 2 major business areas, well known by the experts who define the company.” Source: RevenueBase Database · checked Sep 18, 2026
12	Monsson	Partial evidence	Constanţa, RomaniaHQ checked Sep 18, 2026	201-500	25 contacts →
	Partial evidence “Monsson is the first company established within Monsson Group, a group that has been leading the way in renewable energy for over 15 years.” Source: RevenueBase Database · checked Sep 18, 2026
13	Creative Management	Indirect evidence	Brasov, RomaniaHQ checked Sep 18, 2026	1-10	15 contacts →
	Indirect evidence “We have the desire to be different and to bring to the Romanian market what seems to be increasingly difficult to find: integrity and professionalism Me and my team have extensive…” Source: RevenueBase Database · checked Sep 18, 2026
14	CRC Energy	Partial evidence	Ghiroda, RomaniaHQ checked Sep 18, 2026	1-10	13 contacts →
	Partial evidence “Suntem o companie specializată în furnizarea de soluții energetice la cheie, integrate și personalizate, astfel încat să putem fi considerați partenerul de încredere al…” Source: RevenueBase Database · checked Sep 18, 2026
15	Termohabitat	Indirect evidence	Scheia, RomaniaHQ checked Sep 18, 2026	51-200	12 contacts →
	Indirect evidence “Principiul nostru de bază este calitatea.” Source: RevenueBase Database · checked Sep 18, 2026
16	Solarx	Partial evidence	Targu-jiu, RomaniaHQ checked Sep 18, 2026	11-50	10 contacts →
	Partial evidence “Reducem Costurile Energetice pentru Companii – Soluția Completă La SolarX, ajutăm companiile să reducă costurile cu energia prin soluții fotovoltaice eficiente și personalizate.” Source: RevenueBase Database · checked Sep 18, 2026
17	Dienergy	Indirect evidence	Bucharest, RomaniaHQ checked Sep 18, 2026	11-50	8 contacts →
	Indirect evidence “Realizam concept partial sau integral de iluminat, cu simulari 2d, 3d, proiectare si calcul luminotehnic Punem la dispoziție echipa de electricieni autorizați, ce realizeaza…” Source: RevenueBase Database · checked Sep 18, 2026
18	Inter Heat SRL	Partial evidence	Bucharest, RomaniaHQ checked Sep 18, 2026	51-200	8 contacts →
	Partial evidence “With over 20 years of solid experience in consultancy, sales, and services for photovoltaic systems, air conditioning, and automation, we stand as industry leaders.” Source: RevenueBase Database · checked Sep 18, 2026
19	MBK Power Energy	Partial evidence	Cluj-napoca, RomaniaHQ checked Sep 18, 2026	1-10	8 contacts →
	Partial evidence “Founded in 2017, MBK Power Energy has expanded its scope of activity into energy consulting and project management since 2022.” Source: RevenueBase Database · checked Sep 18, 2026
20	Proiect RO Invest Capital	Strong evidence	Bucharest, RomaniaHQ checked Sep 18, 2026	1-10	7 contacts →
	Strong evidence “Despre noi PROIECT RO INVEST CAPITAL SRL este un lider cu peste un deceniu de expertiză în consultanță pentru proiecte de energie regenerabilă, finanțate din fonduri europene.” Source: RevenueBase Database · checked Sep 18, 2026
21	GIS Energy	Strong evidence	Oradea, RomaniaHQ checked Sep 18, 2026	11-50	7 contacts →
	Strong evidence “Expert in providing sustainable green energy solutions and comprehensive maintenance services.” Source: RevenueBase Database · checked Sep 18, 2026
22	Aquarius Grup	Indirect evidence	Bucharest, RomaniaHQ checked Sep 18, 2026	11-50	6 contacts →
	Indirect evidence “Founded in 2003, Aquarius Grup actively began trading as a standalone unit in early 2005 and developed briskly leading to the later establishment of Aquarius Developments and…” Source: RevenueBase Database · checked Sep 18, 2026
23	Partenerg	Partial evidence	Brasov, RomaniaHQ checked Sep 18, 2026	1-10	6 contacts →
	Partial evidence “Suntem partenerul strategic în achiziția de energie, pentru consumatorii industriali.” Source: RevenueBase Database · checked Sep 18, 2026
24	Econous Green Energy	Indirect evidence	Sector 1, RomaniaHQ checked Sep 18, 2026	11-50	3 contacts →
	Indirect evidence “ECONOUS, with branch offices in Athens, Thessaloniki and Bucharest, is a specialized asset management, private equity and acquisition advisory firm with a primary focus on the…” Source: RevenueBase Database · checked Sep 18, 2026
25	Evolve Energy Management Solutions	Partial evidence	Bucuresti, RomaniaHQ checked Sep 18, 2026	1-10	3 contacts →
	Partial evidence “EVOLVE Energy Management Solutions was founded in 2023 as a response to the challenges addressed to all energy market participant by the transition towards a carbon neutral…” Source: RevenueBase Database · checked Sep 18, 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: sustainable energy consultants. 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 sustainable energy consultants.
Partial evidence: Its own public description names part of sustainable energy consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable energy consultants. 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 134 sustainable energy consultants based in Romania

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Sustainable energy consultants based in Romania at a glance

As of Sep 18, 2026

21.0%Verified-email coverage

11.5Average contacts per company

11-50Median size (employees)

23.9%Largest-city concentration · Bucharest

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for Romania, so it is reported there. Company counts and contact totals on this page are exact for Romania, over 134 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 sustainable energy consultants, 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 Romania whose own description of what they do matches “sustainable energy consultants”. 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 sustainable energy consultants), 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 sustainable energy consultants, and records with no verified work email. Companies headquartered outside Romania 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, 325 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 18, 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.

Sustainable energy consultants by metro

Sustainable energy consultants in Bucharest32

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 sustainable energy consultants, 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 sustainable energy consultants are there based in Romania?

RevenueBase identified 134 sustainable energy consultants headquartered in Romania 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?

Energobit, headquartered in Cluj-Napoca, tops this list with the largest team on record.

Which city has the most sustainable energy consultants?

Bucharest leads with 32 headquartered companies, followed by Bucuresti (12) and Cluj-Napoca (9).

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 325 verified decision-maker contacts tracked across these 134 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 18, 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.