Company lists · Data refreshed September 2026

Top 25 Infrastructure conglomerates based in Greece

Name: Infrastructure conglomerates based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 120 companies tracked

RevenueBase identified 120 infrastructure conglomerates headquartered in Greece as of September 2026 and tracks 4,325 professional contacts across them, including 1,209 with verified work emails. Athens is the largest hub.

This list covers infrastructure conglomerates 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 20, 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 20, 2026 86% judged on-target in blind review

120Companies

4,325Contacts tracked

1,209Verified emails

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The 25 largest infrastructure conglomerates based in Greece

Ranked by team size

Top 25 of 120 infrastructure conglomerates based in Greece, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure conglomerates: 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	Terna S.A	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	1,001-5,000	787 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
2	Avax Group	Partial evidence	Marousi, GreeceHQ checked Sep 20, 2026	1,001-5,000	598 contacts →
	Partial evidence “AVAX Group is one of the largest construction groups in Greece, with a long track record of successful project deliveries, signature infrastructure works, company growth…” Source: RevenueBase Database · checked Sep 20, 2026
3	METKA	Partial evidence	Maroussi, GreeceHQ checked Sep 20, 2026	201-500	524 contacts →
	Partial evidence “METKA ΑΤΕ is a subsidiary of MYTILINEOS – Energy & Metals that was created after the corporate transformation of 2022 to upgrade the infrastructure and construction sector.” Source: RevenueBase Database · checked Sep 20, 2026
4	Salfo & Associates SA	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	201-500	361 contacts →
	Indirect evidence “About SALFO & Associates SALFO & Associates SA is a premier Greek Engineering & Management Consulting firm, delivering excellence through innovation, integrity, and human-centric…” Source: RevenueBase Database · checked Sep 20, 2026
5	Intracom Holdings	Partial evidence	Athens, GreeceHQ checked Sep 20, 2026	501-1,000	214 contacts →
	Partial evidence “INTRACOM established in 1977 by Sokratis Kokkalis, executive Chairman of the Company, soon evolved into a leading Greek conglomerate strategically positioned in high growth…” Source: RevenueBase Database · checked Sep 20, 2026
6	Intrakat Official	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	5,001-10,000	119 contacts →
	Indirect evidence “With headquarters in Greece and a significant international presence, the Intrakat Group is a leading player in the country’s construction sector and delivers high-end services…” Source: RevenueBase Database · checked Sep 20, 2026
7	Elemka S.A	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	51-200	107 contacts →
	Indirect evidence “ELEMKA ’s main activities in Greece and abroad are the following: • Construction and management of civil works, including projects in the energy sector, special steel structures…” Source: RevenueBase Database · checked Sep 20, 2026
8	Mesogeos S.A	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	201-500	102 contacts →
	Indirect evidence “Engineering, Constructing, Consulting and Operating company of Environmantal projects and Plants, related to Water, Waste Water, Solid Waste and Energy from Renewable sources.” Source: RevenueBase Database · checked Sep 20, 2026
9	C&m Engineering S.A	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	51-200	46 contacts →
	Indirect evidence “C&M Engineering is a Consulting Engineering company, in Project Management & Control, Design & Engineering, Construction Management, operating in South-East Europe.” Source: RevenueBase Database · checked Sep 20, 2026
10	Eretbo S.A	Partial evidence	Athens, GreeceHQ checked Sep 20, 2026	51-200	37 contacts →
	Partial evidence “The Group trades in all public and private construction project sectors, as well as, in building and infrastructure maintenance and facility management, in real estate development…” Source: RevenueBase Database · checked Sep 20, 2026
11	Dase Engineering	Indirect evidence	Khalándrion, GreeceHQ checked Sep 20, 2026	11-50	34 contacts →
	Indirect evidence “DASE is established by a mixed team of experienced and young engineers who shared the inspiring vision to create a modern engineering service company, capable of meeting the…” Source: RevenueBase Database · checked Sep 20, 2026
12	Datakat S.A	Indirect evidence	Koropi, GreeceHQ checked Sep 20, 2026	51-200	34 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
13	Aktor SA	Partial evidence	GreeceHQ checked Sep 20, 2026	1,001-5,000	33 contacts →
	Partial evidence “AKTOR, member of Intrakat Group, is established as a leading international infrastructure company with operations in 14 countries, providing a wide range of highly diversified…” Source: RevenueBase Database · checked Sep 20, 2026
14	Linardos S.M.P.C	Indirect evidence	Metamorfosi, GreeceHQ checked Sep 20, 2026	51-200	31 contacts →
	Indirect evidence “LINARDOS P.C.” Source: RevenueBase Database · checked Sep 20, 2026
15	Samaras & Partners Group Of Companies	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	201-500	31 contacts →
	Indirect evidence “Ο Όμιλος «Σαμαράς & Συνεργάτες» κατέχει ηγετική θέση στην ελληνική αγορά ως ένας από τους πλέον ολοκληρωμένους μελετητικούς και συμβουλευτικούς οργανισμούς, παρέχοντας…” Source: RevenueBase Database · checked Sep 20, 2026
16	Ergosteel S.A	Indirect evidence	Maroussi, GreeceHQ checked Sep 20, 2026	11-50	30 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
17	Emek SA	Indirect evidence	Aspropyrgos, GreeceHQ checked Sep 20, 2026	51-200	29 contacts →
	Indirect evidence “With an experience of more than 50 years in the fields of Construction and Heavy Industrial Fabrication on a domestic and international level, we operate today in the sectors of…” Source: RevenueBase Database · checked Sep 20, 2026
18	ATEKE	Partial evidence	Aigaleo, GreeceHQ checked Sep 20, 2026	51-200	20 contacts →
	Partial evidence “ATEKE is a dynamic and highly specialized construction and engineering company based in Athens, Greece, with a strong legacy of delivering complex infrastructure, energy, and…” Source: RevenueBase Database · checked Sep 20, 2026
19	ETME	Indirect evidence	Neo Psichiko, GreeceHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “With a history of more than 45 years in engineering design and project management, ETME S.A.” Source: RevenueBase Database · checked Sep 20, 2026
20	Kryacon S.A	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
21	Ergopraxis S.A	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
22	Redeplan Consultants	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Project & Programme Management, Engineeniring, Technical Assesor Services, Real Estate Advisory and Consulting, EPC Management (Engineering, Procurement, Construction), Circular…” Source: RevenueBase Database · checked Sep 20, 2026
23	Latomiki	Indirect evidence	Heraclion, GreeceHQ checked Sep 20, 2026	51-200	10 contacts →
	Indirect evidence “Latomiki Group of companies is a leading contractor of construction-related services in Greece.” Source: RevenueBase Database · checked Sep 20, 2026
24	Smili SA	Indirect evidence	Athens, GreeceHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Our Identity SMILI SA is a modern and dynamic technical company with over 20 years of experience in the fields of design, construction, and project management.” Source: RevenueBase Database · checked Sep 20, 2026
25	Mavrakis Consulting Engineers	Indirect evidence	Salonica, GreeceHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “MAVRAKIS CONSULTING ENGINEERS is a leading Greek Engineering Consultancy founded back in 1978.” Source: RevenueBase Database · checked Sep 20, 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: infrastructure conglomerates. 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 infrastructure conglomerates.
Partial evidence: Its own public description names part of infrastructure conglomerates, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure conglomerates. 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 120 infrastructure conglomerates based in Greece

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Infrastructure conglomerates based in Greece at a glance

As of Sep 20, 2026

28.0%Verified-email coverage

36.0Average contacts per company

11-50Median size (employees)

27.5%Largest-city concentration · Athens

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 120 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 infrastructure conglomerates, 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 “infrastructure conglomerates”. 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 infrastructure conglomerates), 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 infrastructure conglomerates, 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, 1,209 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 20, 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.

Infrastructure conglomerates by metro

Infrastructure conglomerates in Athens33

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 infrastructure conglomerates, 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 infrastructure conglomerates are there based in Greece?

RevenueBase identified 120 infrastructure conglomerates 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?

Terna S.A, headquartered in Athens, tops this list with the largest team on record.

Which city has the most infrastructure conglomerates?

Athens leads with 33 headquartered companies, followed by Kozani (3) and Chalandri (2).

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 1,209 verified decision-maker contacts tracked across these 120 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 20, 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.