Company lists · Data verified August 2026

Top 25 Clean energy consultancy companies based in Greece

Name: Clean energy consultancy companies based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 243 companies tracked

There are 243 clean energy consultancy companies headquartered in Greece (RevenueBase, August 2026). RevenueBase tracks 1,597 professional contacts across them, including 346 with verified work emails and 27 with mobile numbers. Athens is the largest hub.

This list covers clean energy consultancy companies headquartered in Greece, 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.

243Companies

1,597Contacts tracked

346Verified emails

27Mobile numbers

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The 25 largest clean energy consultancy companies based in Greece

Ranked by team size

Top 25 of 243 clean energy consultancy companies based in Greece, 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	Noisis Development Consultant S.A	n/a	51-200	65	34
2	Envirometrics	n/a	11-50	34	24
3	MGD Energy SA	Athens	51-200	33	19
4	Entec Contractors S.A. GR	Vagia	51-200	31	12
5	Samaras & Partners Group Of Companies	Athens	201-500	31	6
6	Exergia S.A., Climate Change Consultants	n/a	11-50	28	17
7	E3-Modelling Energy-Economy-Environment	Athens	11-50	26	11
8	Airenergy SA	n/a	11-50	24	15
9	Trek Development SA	Greece	11-50	24	5
10	Verd S.A	n/a	51-200	23	13
11	Terra Neutral PC	n/a	11-50	15	11
12	Holistic	n/a	11-50	13	8
13	Blend Development SA	Athens	11-50	13	8
14	Intrapower S.A	n/a	51-200	13	4
15	Estia Consulting & Engineering SA	Thermi	11-50	13	3
16	Dektis Consultant Engineers LTD	Athens	11-50	11	5
17	Kickster Group	Piraeus	11-50	10	5
18	HM Engineering S.A	Athens	11-50	10	2
19	Entricity	n/a	11-50	9	7
20	Innoveco Consulting Services	n/a	11-50	9	5
21	FGRID	Athens	11-50	9	4
22	Prenecon	n/a	201-500	9	2
23	Encircle Energy Specialists	Pefka	11-50	8	4
24	Climergia	Athens	11-50	7	3
25	Team E-M Consulting Engineers S.A	Athens	11-50	7	1

Showing 25 of 243 clean energy consultancy companies based in Greece

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Clean energy consultancy companies based in Greece at a glance

As of Aug 28, 2026

1-10Median size (employees)

AthensLargest hub · 63 HQs

27Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

152

11-50

51-200

201-500

Clean energy consultancy companies by metro

Metro	Companies
Clean energy consultancy companies in Athens	63
Clean energy consultancy companies in Thessaloniki	9
Clean energy consultancy companies in Marousi	3
Clean energy consultancy companies in Kallithea	3
Clean energy consultancy companies in Salonica	3
Clean energy consultancy companies in Corinth	2
Clean energy consultancy companies in Attica	2

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 consultancy companies”, with match quality audited by blind human judging, and headquartered in Greece.
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; 3 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 consultancy companies are there based in Greece?

There are 243 clean energy consultancy companies headquartered in Greece as of August 2026 (RevenueBase).

What is the largest company on this list?

Noisis Development Consultant S.A, headquartered in Greece, tops this list with the largest team on record.

Which city has the most clean energy consultancy companies?

Athens leads with 63 headquartered companies, followed by Thessaloniki (9) and Marousi (3).

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 346 verified decision-maker contacts tracked across these 243 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.