Company lists · Data verified August 2026

Top 21 Clean energy consulting firms based in Romania

Name: Clean energy consulting firms based in Romania
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 138 companies tracked

There are 138 clean energy consulting firms headquartered in Romania (RevenueBase, August 2026). RevenueBase tracks 1,538 professional contacts across them, including 286 with verified work emails and 33 with mobile numbers. Bucharest is the largest hub.

This list covers clean energy consulting firms headquartered in Romania, 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.

138Companies

1,538Contacts tracked

286Verified emails

33Mobile numbers

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The 21 largest clean energy consulting firms based in Romania

Ranked by team size

Top 21 of 138 clean energy consulting firms based in Romania, 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	Energobit	Cluj-Napoca	501-1,000	173	2
2	ADREM	Bucharest	1,001-5,000	151	67
3	Simtel	Bucharest Romania	51-200	95	45
4	Chint Green Energy	Bucharest	5,001-10,000	78	7
5	AJ Brand	Bucharest	501-1,000	53	12
6	Servelect	Cluj-Napoca	11-50	49	26
7	Restart Energy	Timisoara Romania	51-200	49	15
8	FGM Solar	Oradea	201-500	41	14
9	ENSYS	Headquarters	201-500	33	8
10	Volta X Solar Systems	Piatra Neamt	51-200	32	15
11	Energy And Environment Consulting Company	Bucuresti	51-200	26	20
12	Monsson	Constanta	201-500	24	17
13	TDP Partners	Bucharest	11-50	22	1
14	Media Marketing	Tirgu Mures	11-50	12	1
15	Termohabitat	Scheia	51-200	11	3
16	GIS Energy	Oradea	11-50	8	2
17	Loop Operations	n/a	11-50	8	1
18	Aquarius Grup	Bucharest	11-50	6	1
19	Gentle Electric	Ghercesti	51-200	4	2
20	Econous Green Energy	n/a	11-50	2	2
21	Cyeb Energetic Solutions Limited Liability Company	Cluj-Napoca	11-50	2	2

Showing 21 of 138 clean energy consulting firms based in Romania

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Clean energy consulting firms based in Romania at a glance

As of Aug 28, 2026

1-10Median size (employees)

BucharestLargest hub · 39 HQs

33Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Clean energy consulting firms by metro

Metro	Companies
Clean energy consulting firms in Bucharest	39
Clean energy consulting firms in Bucuresti	16
Clean energy consulting firms in Cluj-Napoca	10
Clean energy consulting firms in Constanta	5
Clean energy consulting firms in Galati	3
Clean energy consulting firms in Bacau	3
Clean energy consulting firms in Ploiesti	3

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 “clean energy consulting firms”, with match quality audited by blind human judging, and headquartered in Romania.
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 clean energy consulting firms are there based in Romania?

There are 138 clean energy consulting firms headquartered in Romania as of August 2026 (RevenueBase).

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 clean energy consulting firms?

Bucharest leads with 39 headquartered companies, followed by Bucuresti (16) and Cluj-Napoca (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 286 verified decision-maker contacts tracked across these 138 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.