Company lists · Data verified August 2026

Top 25 Engineering consulting firms based in Greece

Name: Engineering 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 623 companies tracked

There are 623 engineering consulting firms headquartered in Greece (RevenueBase, August 2026). RevenueBase tracks 11,693 professional contacts across them, including 2,706 with verified work emails and 745 with mobile numbers. Athens is the largest hub.

This list covers engineering 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.

623Companies

11,693Contacts tracked

2,706Verified emails

745Mobile numbers

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The 25 largest engineering consulting firms based in Greece

Ranked by team size

Top 25 of 623 engineering 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	Hill International, INC	Athens	1,001-5,000	6,713	1,374
2	Salfo & Associates SA	Athens	201-500	361	90
3	Samaras & Associates Sa-Consulting Engineers	Athens	201-500	150	60
4	Asprofos Engineering	Athens	201-500	134	69
5	Elemka S.A	Athens	51-200	105	65
6	Mesogeos S.A	Athens	201-500	104	50
7	Hydrus	n/a	201-500	101	57
8	Protasis SA	Pylaia Chortiatis	51-200	100	47
9	Ballian Techniki SA	Athens	51-200	94	49
10	Delta Engineering S.A. Consulting Engineers	n/a	51-200	73	32
11	VCE Vienna Consulting Engineers ZT Gmbh	n/a	201-500	68	37
12	C&m Engineering S.A	Athens	51-200	46	31
13	Nama Consulting Engineers And Planners SA	n/a	51-200	45	15
14	Gaia SA	n/a	51-200	43	10
15	MGK Tech	n/a	51-200	38	20
16	Althom Group	n/a	51-200	37	16
17	Technor Engineering S.A	n/a	51-200	34	8
18	Samaras & Partners Group Of Companies	Athens	201-500	31	6
19	Exergia S.A., Climate Change Consultants	n/a	11-50	28	17
20	Marnet S.A	n/a	11-50	27	16
21	ADT Omega	Agia Paraskevi	11-50	27	14
22	Aethon Engineering	n/a	11-50	24	5
23	A&g Powering Construction	Agios Dimitrios	51-200	22	5
24	ATEKE	Petras	51-200	20	8
25	Edafos Engineering Consultants S.A	n/a	11-50	17	5

Showing 25 of 623 engineering consulting firms based in Greece

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Engineering consulting firms based in Greece at a glance

As of Aug 28, 2026

1-10Median size (employees)

AthensLargest hub · 183 HQs

745Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

359

11-50

216

51-200

201-500

1,001-5,000

Engineering consulting firms by metro

Metro	Companies
Engineering consulting firms in Athens	183
Engineering consulting firms in Thessaloniki	26
Engineering consulting firms in Patras	7
Engineering consulting firms in Marousi	7
Engineering consulting firms in Piraeus	6
Engineering consulting firms in Attica	6
Engineering consulting firms in Pylaia	5

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 “engineering 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; 0 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 engineering consulting firms are there based in Greece?

There are 623 engineering consulting firms headquartered in Greece as of August 2026 (RevenueBase).

What is the largest company on this list?

Hill International, INC, headquartered in Athens, tops this list with the largest team on record.

Which city has the most engineering consulting firms?

Athens leads with 183 headquartered companies, followed by Thessaloniki (26) and Patras (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 2,706 verified decision-maker contacts tracked across these 623 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.