Company lists · Data verified August 2026

Top 25 Clean energy consulting firms based in Greece

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 201 companies tracked

There are 201 clean energy consulting firms headquartered in Greece (RevenueBase, August 2026). RevenueBase tracks 1,383 professional contacts across them, including 310 with verified work emails and 18 with mobile numbers. Athens is the largest hub.

This list covers clean energy consulting firms 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.

201Companies

1,383Contacts tracked

310Verified emails

18Mobile numbers

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The 25 largest clean energy consulting firms based in Greece

Ranked by team size

Top 25 of 201 clean energy consulting firms 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	Exergia S.A., Climate Change Consultants	n/a	11-50	28	17
6	E3-Modelling Energy-Economy-Environment	Athens	11-50	26	11
7	Airenergy SA	n/a	11-50	24	15
8	Verd S.A	n/a	51-200	23	13
9	Terra Neutral PC	n/a	11-50	15	11
10	Vm&a S.A	n/a	11-50	14	10
11	Holistic	n/a	11-50	13	8
12	Estia Consulting & Engineering SA	Thermi	11-50	13	3
13	Dektis Consultant Engineers LTD	Athens	11-50	11	5
14	Kickster Group	Piraeus	11-50	10	5
15	HM Engineering S.A	Athens	11-50	10	2
16	Entricity	n/a	11-50	9	7
17	Innoveco Consulting Services	n/a	11-50	9	5
18	Inovtech	n/a	11-50	9	5
19	FGRID	Athens	11-50	9	4
20	Prenecon	n/a	201-500	9	2
21	Encircle Energy Specialists	Pefka	11-50	8	4
22	Climergia	Athens	11-50	7	3
23	Echmes LTD	Athens	11-50	7	3
24	Team E-M Consulting Engineers S.A	Athens	11-50	7	1
25	Arservices	n/a	11-50	6	2

Showing 25 of 201 clean energy consulting firms based in Greece

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Clean energy consulting firms based in Greece at a glance

As of Aug 28, 2026

1-10Median size (employees)

AthensLargest hub · 52 HQs

18Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

121

11-50

51-200

201-500

Clean energy consulting firms by metro

Metro	Companies
Clean energy consulting firms in Athens	52
Clean energy consulting firms in Thessaloniki	8
Clean energy consulting firms in Salonica	3
Clean energy consulting firms in Marousi	3
Clean energy consulting firms in Trikala	2
Clean energy consulting firms in Patras	2
Clean energy consulting firms in Kallithea	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 consulting firms”, 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; 2 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 Greece?

There are 201 clean energy consulting firms 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 consulting firms?

Athens leads with 52 headquartered companies, followed by Thessaloniki (8) and Salonica (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 310 verified decision-maker contacts tracked across these 201 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.