Company lists · Data refreshed September 2026

Top 25 Infrastructure consulting firms based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 298 companies tracked

RevenueBase identified 298 infrastructure consulting firms headquartered in Greece as of September 2026 and tracks 3,326 professional contacts across them, including 906 with verified work emails and 62 with mobile numbers. Athens is the largest hub.

This list covers infrastructure consulting 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 3, 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 3, 2026 86% judged on-target in blind review

298Companies

3,326Contacts tracked

906Verified emails

62Mobile numbers

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The 25 largest infrastructure consulting firms based in Greece

Ranked by team size

Top 25 of 298 infrastructure consulting firms based in Greece, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure consulting 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	Salfo & Associates SA	Partial evidence	Athens, GreeceHQ checked Sep 3, 2026	201-500	361 contacts →
	Partial 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 3, 2026
2	Real Consulting	Partial evidence	Chalandri, GreeceHQ checked Sep 3, 2026	501-1,000	279 contacts →
	Partial evidence “Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Source: RevenueBase Database · checked Sep 3, 2026
3	Samaras & Associates Sa-Consulting Engineers	Indirect evidence	Athens, GreeceHQ checked Sep 3, 2026	201-500	150 contacts →
	Indirect evidence “Η «Σαμαράς & Συνεργάτες Α.Ε- Σύμβουλοι Μηχανικοί» αποτελεί, σήμερα, τη μεγαλύτερη και αρτιότερα στελεχωμένη μελετητική και συμβουλευτική εταιρεία στην Ελλάδα.” Source: RevenueBase Database · checked Sep 3, 2026
4	Mesogeos S.A	Partial evidence	Athens, GreeceHQ checked Sep 3, 2026	201-500	104 contacts →
	Partial 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 3, 2026
5	Ballian Techniki SA	Partial evidence	Athens, GreeceHQ checked Sep 3, 2026	51-200	94 contacts →
	Partial evidence “Ballian Techniki provides design, construction and technical consulting services for clients in the private sector, for over 4 decades.” Source: RevenueBase Database · checked Sep 3, 2026
6	Noisis Development Consultant S.A	Indirect evidence	Athens, GreeceHQ checked Sep 3, 2026	51-200	65 contacts →
	Indirect evidence “NOISIS S.A.” Source: RevenueBase Database · checked Sep 3, 2026
7	C&m Engineering S.A	Partial evidence	Athens, GreeceHQ checked Sep 3, 2026	51-200	46 contacts →
	Partial 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 3, 2026
8	Nama Consulting Engineers And Planners SA	Partial evidence	GreeceHQ checked Sep 3, 2026	51-200	45 contacts →
	Partial evidence “NAMA Consulting Engineers and Planners SA was founded in Athens (GR) at the beginning of 1990.” Source: RevenueBase Database · checked Sep 3, 2026
9	Gaia SA	Indirect evidence	GreeceHQ checked Sep 3, 2026	51-200	43 contacts →
	Indirect evidence “GAIA S.A.” Source: RevenueBase Database · checked Sep 3, 2026
10	Dase Engineering	Indirect evidence	GreeceHQ checked Sep 3, 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 3, 2026
11	Samaras & Partners Group Of Companies	Indirect evidence	Athens, GreeceHQ checked Sep 3, 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 3, 2026
12	Exergia S.A., Climate Change Consultants	Indirect evidence	GreeceHQ checked Sep 3, 2026	11-50	28 contacts →
	Indirect evidence “EXERGIA is an independent firm of consultants operating internationally and providing specialized advice, expertise and technical consultancy on the sectors of Energy, Environment…” Source: RevenueBase Database · checked Sep 3, 2026
13	ADT Omega	Strong evidence	Agia Paraskevi, GreeceHQ checked Sep 3, 2026	11-50	27 contacts →
	Strong evidence “Established in ADT OMEGA is a leading engineering company which provides design, consulting and supervision services for infrastructure projects.” Source: RevenueBase Database · checked Sep 3, 2026
14	Break Even Consulting	Partial evidence	GreeceHQ checked Sep 3, 2026	11-50	27 contacts →
	Partial evidence “Η εταιρεία Break Even Consulting ειδικεύεται στην παροχή συμβουλευτικών και μελετητικών υπηρεσιών υψηλής ποιότητας σε επιχειρήσεις, οργανισμούς και σε φορείς του δημοσίου και…” Source: RevenueBase Database · checked Sep 3, 2026
15	Thymio Papayannis And Associates INC	Indirect evidence	GreeceHQ checked Sep 3, 2026	11-50	26 contacts →
	Indirect evidence “THYMIO PAPAYANNIS AND ASSOCIATES INC (TPA) has been providing technical and social services in the fields of planning, architecture and engineering in Greece and abroad, since…” Source: RevenueBase Database · checked Sep 3, 2026
16	Rogan Associates S.A	Partial evidence	Athens, GreeceHQ checked Sep 3, 2026	11-50	25 contacts →
	Partial evidence “ROGAN ASSOCIATES is an International Consulting Engineering Firm specialized in Port and Waterfront Development.” Source: RevenueBase Database · checked Sep 3, 2026
17	Aethon Engineering	Indirect evidence	GreeceHQ checked Sep 3, 2026	11-50	24 contacts →
	Indirect evidence “We are a company of engineers, programmers, analysts and consultants who engage in designing, planning and generating innovative and smart solutions for the civil engineering…” Source: RevenueBase Database · checked Sep 3, 2026
18	Trek Development SA	Partial evidence	Athens, GreeceHQ checked Sep 3, 2026	11-50	24 contacts →
	Partial evidence “TREK Development is among the top Project Development in INFRASTRUCTURE & Professional Services Public listed company (ATHEX: TREK) in the region.” Source: RevenueBase Database · checked Sep 3, 2026
19	Domi S.A	Indirect evidence	GreeceHQ checked Sep 3, 2026	11-50	21 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 3, 2026
20	ATEKE	Partial evidence	Petras, GreeceHQ checked Sep 3, 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 3, 2026
21	Define Solutions S.A	Indirect evidence	GreeceHQ checked Sep 3, 2026	11-50	18 contacts →
	Indirect evidence “At Define Solutions, we put your business needs and goals first, in order to deliver tailored solutions that drive growth and streamline operations.” Source: RevenueBase Database · checked Sep 3, 2026
22	ANAX	Partial evidence	GreeceHQ checked Sep 3, 2026	11-50	18 contacts →
	Partial evidence “ANAX provides Construction, Design & Engineering, Project Management, and Technical Consulting services for diverse projects in the private sector.” Source: RevenueBase Database · checked Sep 3, 2026
23	Liontos & Associates	Partial evidence	GreeceHQ checked Sep 3, 2026	11-50	17 contacts →
	Partial evidence “Liontos & Associates Ltd was established in 1998, having as an objective to provide consulting services regarding the design and management of complex technical projects.” Source: RevenueBase Database · checked Sep 3, 2026
24	Remaco S.A	Partial evidence	Marousi, GreeceHQ checked Sep 3, 2026	11-50	16 contacts →
	Partial evidence “REMACO S.A, a founding member of the Hellenic Association of Management Consulting Firms (SESMA), is offering governance and innovation services, responsibly and consistently…” Source: RevenueBase Database · checked Sep 3, 2026
25	Panmarine & Industrial Services LTD	Indirect evidence	Piraeus, GreeceHQ checked Sep 3, 2026	11-50	16 contacts →
	Indirect evidence “PanMarine & Industrial Services Ltd was established in Piraeus, to accommodate the needs of the Greek Marine, Power and Industrial sectors.” Source: RevenueBase Database · checked Sep 3, 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 consulting 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 infrastructure consulting firms.
Partial evidence: Its own public description names part of infrastructure consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure consulting 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 298 infrastructure consulting firms based in Greece

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Infrastructure consulting firms based in Greece at a glance

As of Sep 3, 2026

27.2%Verified-email coverage

1.9%Mobile-number coverage

11.2Average contacts per company

1-10Median size (employees)

29.9%Largest-city concentration · Athens

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

149

11-50

125

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

8831–60

52661–90

29090–180

2180+

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 consulting 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 “infrastructure consulting 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 infrastructure consulting 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 infrastructure consulting 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, 906 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 3, 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 consulting firms by metro

Infrastructure consulting firms in Athens89

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 consulting 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 infrastructure consulting firms are there based in Greece?

RevenueBase identified 298 infrastructure consulting 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?

Salfo & Associates SA, headquartered in Athens, tops this list with the largest team on record.

Which city has the most infrastructure consulting firms?

Athens leads with 89 headquartered companies, followed by Thessaloniki (8) and Marousi (7).

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 906 verified decision-maker contacts tracked across these 298 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 3, 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.