Company lists · Data refreshed September 2026

Top 25 Energy systems integration firms based in Greece

Name: Energy systems integration firms based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 94 companies tracked

RevenueBase identified 94 energy systems integration firms headquartered in Greece as of September 2026 and tracks 569 professional contacts across them, including 181 with verified work emails. Athens is the largest hub.

This list covers energy systems integration firms 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 28, 2026 86% judged on-target in blind review

94Companies

569Contacts tracked

181Verified emails

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The 25 largest energy systems integration firms based in Greece

Ranked by team size

Top 25 of 94 energy systems integration firms based in Greece, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy systems integration firms: 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	Ifsas Group	Partial evidence	Kifissia, GreeceHQ checked Sep 28, 2026	51-200	68 contacts →
	Partial evidence “IFSAS Group is a leading integrator of advanced Safety, Security & Homeland Security solutions, delivering end-to-end systems that protect people, assets, and critical operations.” Source: RevenueBase Database · checked Sep 28, 2026
2	MGD Energy SA	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	51-200	33 contacts →
	Partial evidence “At MGD Energy, we empower households, businesses, and communities to actively participate in the energy transition by delivering cutting-edge, integrated clean energy solutions.” Source: RevenueBase Database · checked Sep 28, 2026
3	Iliatoras - Ηλιατορασ	Indirect evidence	Pylaia, GreeceHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Η εταιρεία Ηλιάτορας είναι μία εταιρεία οικονομικά υγιής και σύγχρονη που απαρτίζεται απο νέους ανθρώπους στην πλειοψηφία τους ηλεκτρονικούς τεχνικούς και ηλεκτρολόγους οι οποίοι…” Source: RevenueBase Database · checked Sep 28, 2026
4	Gecko Power Solutions	Indirect evidence	Marousi, GreeceHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Gecko Power Solutions is an engineering and consulting company specialized in Power Grids, HV & MV Substations, Power Generation and Industry projects.” Source: RevenueBase Database · checked Sep 28, 2026
5	Eaton PC	Indirect evidence	GreeceHQ checked Sep 28, 2026	1-10	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
6	SELMA	Indirect evidence	Piraeus, GreeceHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “SELMA is an engineering company specialising in Marine and Yachting Industry, implementing the design, development and installation of integrated marine electrical, automation and…” Source: RevenueBase Database · checked Sep 28, 2026
7	Calda Energy - Aermec	Strong evidence	Metamorfosi, GreeceHQ checked Sep 28, 2026	11-50	11 contacts →
	Strong evidence “Founded in 1981, CALDA ENERGY specializes in air-conditioning, heating, and solar energy solutions, offering innovative and technologically advanced systems for residential…” Source: RevenueBase Database · checked Sep 28, 2026
8	DOMX	Strong evidence	Kalamariá, GreeceHQ checked Sep 28, 2026	1-10	10 contacts →
	Strong evidence “Founded in 2019 by a team of specialized engineers with strong academic backgrounds, domx is on a mission to transform traditional building systems and maximize energy efficiency.” Source: RevenueBase Database · checked Sep 28, 2026
9	Inovtech	Partial evidence	Lykovrysi, GreeceHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “Inovtech Engineering & Consulting provides diverse specialist services to renewable energy & power generation developers & contractors, distribution & transmission utilities, and…” Source: RevenueBase Database · checked Sep 28, 2026
10	Sarris Energy	Strong evidence	Chania, GreeceHQ checked Sep 28, 2026	11-50	9 contacts →
	Strong evidence “Sarris Energy is a Technical Company that provides innovative products and services in the following sectors: Energy Efficiency: Heat pumps, Air Conditioning systems, Solar…” Source: RevenueBase Database · checked Sep 28, 2026
11	Alesco SA	Indirect evidence	Ioannina, GreeceHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Η ALESCO είναι μία εταιρεία ολοκληρωμένων ενεργειακών λύσεων με εξειδίκευση στα φωτοβολταϊκά συστήματα, την αποθήκευση ενέργειας, την ενεργειακή αναβάθμιση κτιρίων και τις…” Source: RevenueBase Database · checked Sep 28, 2026
12	Idealklima	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Η ΙDEALKLIMA PC είναι μία τεχνική εταιρεία με έδρα τη Θεσσαλονίκη, η οποία εξειδικεύεται στην παροχή ολοκληρωμένων λύσεων για τον κλιματισμό (ψύξη, θέρμανση, εξαερισμός) της…” Source: RevenueBase Database · checked Sep 28, 2026
13	Pro.Compute	Partial evidence	GreeceHQ checked Sep 28, 2026	1-10	8 contacts →
	Partial evidence “Our company focuses on SELV (Low Voltage) solutions for commercial and residential applications, such as networks, fiber optics, building automation, security systems, unified…” Source: RevenueBase Database · checked Sep 28, 2026
14	Energy Project	Strong evidence	Cholargos, GreeceHQ checked Sep 28, 2026	1-10	8 contacts →
	Strong evidence “Since 2006, Energy Project has been at the forefront of designing and implementing advanced energy-saving systems.” Source: RevenueBase Database · checked Sep 28, 2026
15	Blue SUN	Indirect evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Founded in 2020, BLUESUN Hellas specializes in the design, installation, and maintenance of mission-critical infrastructures.” Source: RevenueBase Database · checked Sep 28, 2026
16	Arignoti Engineering	Partial evidence	Thessaloniki, GreeceHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “ARIGNOTI Engineering founded in 2021, has already developed extensive expertise in industrial and energy generation projects, combining project design and engineering with…” Source: RevenueBase Database · checked Sep 28, 2026
17	Megva Energy	Partial evidence	Thessaloniki, GreeceHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “MEGVA Energy, an ISO 9001:2015, ISO 45001:2018, ISO 14001:2015 certified company, is a leading innovator in the renewable energy sector.” Source: RevenueBase Database · checked Sep 28, 2026
18	Extrabit	Strong evidence	Egaleo, GreeceHQ checked Sep 28, 2026	1-10	5 contacts →
	Strong evidence “Extrabit was founded in 2018 by a team of engineers with 15+ years of experience in systems integration and automation projects.” Source: RevenueBase Database · checked Sep 28, 2026
19	Green Value	Indirect evidence	Athens, GreeceHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “GreenValue S.A.” Source: RevenueBase Database · checked Sep 28, 2026
20	Upnorm S.A	Indirect evidence	Thessaloniki, GreeceHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “Zero Power Waste.” Source: RevenueBase Database · checked Sep 28, 2026
21	BI & Automations GP	Partial evidence	Thessaloniki, GreeceHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “We provide turnkey automation solutions to public and private sector clients, including municipalities, hotels, buildings and infrastructure operators, addressing energy…” Source: RevenueBase Database · checked Sep 28, 2026
22	Ecomechanica	Strong evidence	Amaroúsion, GreeceHQ checked Sep 28, 2026	1-10	3 contacts →
	Strong evidence “EcoMechanica is a Greek engineering and commercial firm specializing in Renewable Energy Systems (RES), voltage power optimization, and energy management.” Source: RevenueBase Database · checked Sep 28, 2026
23	Energy Profit	Partial evidence	Athens, GreeceHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “Η ENERGY PROFIT είναι ενεργειακή συμβουλευτική εταιρεία με εξειδίκευση στον στρατηγικό ενεργειακό σχεδιασμό, στον τομέα της παραγωγής ενέργειας από ανανεώσιμες πηγές (ΑΠΕ), την…” Source: RevenueBase Database · checked Sep 28, 2026
24	Interen Engineering P.C	Partial evidence	Kavala, GreeceHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “At Interen Engineering, we specialize in building automation, energy management, and photovoltaics.” Source: RevenueBase Database · checked Sep 28, 2026
25	Next Constructions	Strong evidence	Néa Ionía, GreeceHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “Next Constructions is an innovative company in the construction and system integration field, operating in Athens, Greece.” Source: RevenueBase Database · checked Sep 28, 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: energy systems integration firms. 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 energy systems integration firms.
Partial evidence: Its own public description names part of energy systems integration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy systems integration firms. 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 94 energy systems integration firms based in Greece

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Energy systems integration firms based in Greece at a glance

As of Sep 28, 2026

31.8%Verified-email coverage

6.1Average contacts per company

1-10Median size (employees)

21.3%Largest-city concentration · Athens

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured worldwide rather than for Greece, so it is reported there. Company counts and contact totals on this page are exact for Greece, over 94 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 energy systems integration firms, 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 Greece whose own description of what they do matches “energy systems integration firms”. 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 energy systems integration firms), 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 energy systems integration firms, 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 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, 181 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 28, 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.

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 energy systems integration firms, 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 energy systems integration firms are there based in Greece?

RevenueBase identified 94 energy systems integration firms 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?

Ifsas Group, headquartered in Greece, tops this list with the largest team on record.

Which city has the most energy systems integration firms?

Athens leads with 20 headquartered companies, followed by Thessaloniki (6) and Patras (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 181 verified decision-maker contacts tracked across these 94 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 28, 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.