Company lists · Data refreshed September 2026

Top 11 Consulting firms based in Thessaloniki, Greece

RevenueBase identified 37 consulting firms headquartered in Thessaloniki, Greece as of September 2026 and tracks 165 professional contacts across them, including 42 with verified work emails and 5 with mobile numbers. Athens is the largest hub.

This list covers consulting firms headquartered in Thessaloniki, 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 8, 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 8, 2026 86% judged on-target in blind review
37Companies
165Contacts tracked
42Verified emails
5Mobile numbers
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The 11 largest consulting firms based in Thessaloniki, Greece

Ranked by team size
Top 11 of 37 consulting firms based in Thessaloniki, Greece, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceThessaloniki, GreeceHQ checked Sep 8, 202611-5017 contacts →

“OECON Group, a Greek-based consultancy company, has been providing exceptional business consulting services since 2003.”

Source: company website · checked Sep 8, 2026
2Indirect evidenceThessaloniki, GreeceHQ checked Sep 8, 202611-5016 contacts →

“Η BLUE VALUE είναι μία σύγχρονη εταιρεία παροχής συμβουλευτικών υπηρεσιών, υπηρεσιών υποστήριξης και λειτουργίας φορέων και υπηρεσιών εκπαίδευσης.”

Source: company website · checked Sep 8, 2026
3Indirect evidenceThessaloniki, GreeceHQ checked Sep 8, 202611-5015 contacts →

“At Codable, we partner with organizations undergoing digital and operational change.”

Source: company website · checked Sep 8, 2026
4Strong evidenceThessaloniki, GreeceHQ checked Sep 8, 202611-5010 contacts →

“for EN scroll down) Η Ιds Consulting με έδρα την Θεσσαλονίκη, από το 2003 παρέχει ολοκληρωμένες συμβουλευτικές και διαχειριστικές υπηρεσίες σε επιχειρήσεις, οργανισμούς και…”

Source: company website · checked Sep 8, 2026
5Indirect evidenceThessaloniki, GreeceHQ checked Sep 8, 202611-509 contacts →
Source: company website · checked Sep 8, 2026
6Strong evidenceThessaloniki, GreeceHQ checked Sep 8, 20261-106 contacts →

“Emetris is a business consulting company founded in 1996 which specializes in SMEs, Innovation, Strategy, Finance & Environment.”

Source: company website · checked Sep 8, 2026
7Indirect evidenceThessaloniki, GreeceHQ checked Sep 8, 202611-504 contacts →

“KASALIAS Food Industry Consultants is an interdisciplinary team of consultants, whose services cover the full range of food industry needs and expectations.”

Source: company website · checked Sep 8, 2026
8Indirect evidenceThessaloniki, GreeceHQ checked Sep 8, 20261-103 contacts →

“Human Value is dedicated exclusively to providing comprehensive, specialized HR services for both companies and individuals.”

Source: company website · checked Sep 8, 2026
9Strong evidenceThessaloniki, GreeceHQ checked Sep 8, 202611-503 contacts →

“Delta Communications Business Solutions provides high quality Sales, Lead Generation and Consulting services to Organizations, Large Firms and Start Ups.”

Source: company website · checked Sep 8, 2026
10Indirect evidenceThessaloniki, GreeceHQ checked Sep 8, 20261-101 contacts →

“Αξιοποιούμε στο μέγιστο την πολυετή εμπειρία των στελεχών μας, εξασφαλίζοντας τα συμφέροντα σας και την πλήρη διεκπεραίωση των υποθέσεών σας.”

Source: company website · checked Sep 8, 2026
11Strong evidenceThessaloniki, GreeceHQ checked Sep 8, 20261-101 contacts →

“We are a boutique consulting agency specialising in business development and sales in Greece, Middle East & Africa.”

Source: company website · checked Sep 8, 2026

Showing 11 of 37 consulting firms based in Thessaloniki, Greece

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Consulting firms based in Thessaloniki, Greece at a glance

As of Sep 8, 2026
25.5%Verified-email coverage
3.0%Mobile-number coverage
4.5Average contacts per company
1-10Median size (employees)
824.3%Largest-city concentration · Athens
Sep 8, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
13

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 11.5d

Company record updated

Median 58.0d

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 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 Thessaloniki, Greece whose own description of what they do matches “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 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 consulting firms, and records with no verified work email. Companies headquartered outside Thessaloniki 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, 42 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 8, 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.

Consulting firms by metro in Greece

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 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 consulting firms are there based in Thessaloniki, Greece?

RevenueBase identified 37 consulting firms headquartered in Thessaloniki, 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?

Oecon Group Of Companies, headquartered in Thessaloniki, tops this list with the largest team on record.

Which city has the most consulting firms?

Athens leads with 305 headquartered companies, followed by Thessaloniki (38) and Marousi (15).

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 42 verified decision-maker contacts tracked across these 37 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 8, 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.