Company lists · Data refreshed September 2026

Top 25 Renewable energy consultancy companies based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 246 companies tracked

RevenueBase identified 246 renewable energy consultancy companies headquartered in Greece as of September 2026 and tracks 2,022 professional contacts across them, including 609 with verified work emails and 39 with mobile numbers. Athens is the largest hub.

This list covers renewable 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. 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

246Companies

2,022Contacts tracked

609Verified emails

39Mobile numbers

Explore all 246 companies → Free signup · no credit card · 500 free credits

The 25 largest renewable energy consultancy companies based in Greece

Ranked by team size

Top 25 of 246 renewable energy consultancy companies based in Greece, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names renewable energy consultancy companies: 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	PPC RenewablesStrong evidence	Athens, GreeceHQ checked Sep 5, 2026	201-500	312
	“Public Power Corporation Renewables, subsidiary of PPC S.A, Greece’s largest power generation company, is dedicated to the development and management of energy production from…” Source: company website · checked Sep 5, 2026
2	Paralos EnergyPartial evidence	Marousi, GreeceHQ checked Sep 5, 2026	51-200	89
	“Paralos Energy specialises in the design, construction, commissioning, operation and maintenance of energy projects.” Source: company website · checked Sep 5, 2026
3	Enveco S.AIndirect evidence	Marousi, GreeceHQ checked Sep 5, 2026	11-50	39
	Source: company website · checked Sep 5, 2026
4	MGK TechPartial evidence	Lykovrysi, GreeceHQ checked Sep 5, 2026	51-200	38
	“MGK Tech is an engineering firm specialized in Engineering, Procurement, Construction, Commissioning and O&M Services for Electrical Substations, Conventional and Renewable Power…” Source: company website · checked Sep 5, 2026
5	MES Energy S.APartial evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	35
	“MES Energy SA is the energy subsidiary of MESOGEOS Group dealing with energy applications, RES energy production, energy trading and specialized energy engineering services.” Source: company website · checked Sep 5, 2026
6	EnvirometricsIndirect evidence	Khalándrion, GreeceHQ checked Sep 5, 2026	11-50	35
	“Envirometrics is a leading environmental consulting firm specializing in sustainability and environmental protection.” Source: company website · checked Sep 5, 2026
7	Faria Renewables S.AStrong evidence	Thessaloniki, GreeceHQ checked Sep 5, 2026	11-50	33
	“FARIA Renewables is a joint corporate formation between FARIA Group and Capenergie 5 Fund, targeting to co-operate closely for the development and operation of Renewable Energy…” Source: company website · checked Sep 5, 2026
8	Entec Contractors S.A. GRPartial evidence	Kallithea, GreeceHQ checked Sep 5, 2026	51-200	31
	“Entec Contractors S.A, a member of the Entec Group, is an Engineering, Procurement and Construction (EPC) company for the energy and digital transition.” Source: company website · checked Sep 5, 2026
9	Exergia S.A., Climate Change ConsultantsStrong evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	30
	“EXERGIA is an independent firm of consultants operating internationally and providing specialized advice, expertise and technical consultancy on the sectors of Energy, Environment…” Source: company website · checked Sep 5, 2026
10	Solar Cells Hellas GroupStrong evidence	Maroussi, GreeceHQ checked Sep 5, 2026	51-200	27
	“Solar Cells Hellas Group provides professional solutions for the realization of Renewable Energy Sources (RES) projects, including the development of techno-economic studies…” Source: company website · checked Sep 5, 2026
11	Aenaos Energy SystemsStrong evidence	Athens, GreeceHQ checked Sep 5, 2026	51-200	26
	“AENAOS - Energy Systems is a Greek energy company active in the field of Renewable Energy Sources.” Source: company website · checked Sep 5, 2026
12	Optimus Energy Heron GEK Terna GroupPartial evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	26
	“The #1 Renewable Aggregator in Greece and Demand Response services provider.” Source: company website · checked Sep 5, 2026
13	E3-Modelling Energy-Economy-EnvironmentPartial evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	25
	“We are a team of experienced consultants, analysts and modellers specializing in providing consulting services based on advanced empirical modelling of the…” Source: company website · checked Sep 5, 2026
14	Airenergy SAPartial evidence	Agia Paraskevi, GreeceHQ checked Sep 5, 2026	11-50	24
	“AirEnergy S.A, was established in 2008, leads to energy transition towards a sustainable future in Greece.” Source: company website · checked Sep 5, 2026
15	ResinvestPartial evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	23
	“RESINVEST undertakes the development and construction of RES projects and offers a customised range of services in the energy efficiency scope by identifying and optimally…” Source: company website · checked Sep 5, 2026
16	Verd S.APartial evidence	Marousi, GreeceHQ checked Sep 5, 2026	51-200	23
	“VERD is a next-generation green energy company.” Source: company website · checked Sep 5, 2026
17	NANKOPartial evidence	Chalandri, GreeceHQ checked Sep 5, 2026	11-50	16
	“NANKO Energy S.A.” Source: company website · checked Sep 5, 2026
18	Terra Neutral PCIndirect evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	15
	“TERRA NEUTRAL provides services for the sustainable growth of its clients by managing the risks arising from climate change, resource depletion and environmental degradation.” Source: company website · checked Sep 5, 2026
19	Entec Green Economy Consultants GRStrong evidence	GreeceHQ checked Sep 5, 2026	11-50	14
	“Green economies consist of activities in sectors such as renewable energy, sustainable construction, eco-transport, protecting land and water resources, and waste management.” Source: company website · checked Sep 5, 2026
20	Eaton PCIndirect evidence	GreeceHQ checked Sep 5, 2026	1-10	14
	Source: company website · checked Sep 5, 2026
21	ECO SUN LTDStrong evidence	Thessaloniki, GreeceHQ checked Sep 5, 2026	11-50	14
	“ECO//SUN Ltd is a pioneer company in the renewable energy sector.” Source: company website · checked Sep 5, 2026
22	Estia Consulting & Engineering SAIndirect evidence	Thessaloniki, GreeceHQ checked Sep 5, 2026	11-50	14
	“ESTIA Consulting and Engineering - based in Thessaloniki - is active on development, licensing and engineering of RES projects.” Source: company website · checked Sep 5, 2026
23	Blend Development SAStrong evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	13
	“Blend is a development, project management and consulting services company planning and executing real estate and renewable energy projects in Greece.” Source: company website · checked Sep 5, 2026
24	HolisticPartial evidence	Agia Paraskevi, GreeceHQ checked Sep 5, 2026	11-50	13
	“HOLISTIC offers a wide range of consulting services in the fields of projects organization and management support, digital services and energy and environmental policy and…” Source: company website · checked Sep 5, 2026
25	Ambio SAStrong evidence	Athens, GreeceHQ checked Sep 5, 2026	11-50	13
	“AMBIO, as a full service development consultancy, provides a complete range of consulting services, focusing on the Primary sector and Food Industry, Environment, Energy and…” Source: company website · checked Sep 5, 2026

Showing 25 of 246 renewable energy consultancy companies based in Greece

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Renewable energy consultancy companies based in Greece at a glance

As of Sep 5, 2026

1-10Median size (employees)

AthensLargest hub · 58 HQs

39Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

136

11-50

51-200

201-500

1,001-5,000

Verified emails by last verification

0–30

581

31–60

61–90

90–180

180+

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 consultancy companies, 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 Greece whose own description of what they do matches “renewable energy consultancy companies”. 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 consultancy companies, and records with no verified work email. Companies headquartered outside Greece 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, 609 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 consultancy companies by metro

Renewable energy consultancy companies in Athens58

Frequently asked

How many renewable energy consultancy companies are there based in Greece?

RevenueBase identified 246 renewable energy consultancy companies headquartered in Greece 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?

PPC Renewables, headquartered in Greece, tops this list with the largest team on record.

Which city has the most renewable energy consultancy companies?

Athens leads with 58 headquartered companies, followed by Thessaloniki (6) and Marousi (4).

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 609 verified decision-maker contacts tracked across these 246 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.

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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 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.