Company lists · Data verified August 2026

Top 12 Esg consulting firms based in Luxembourg

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 35 companies tracked

There are 35 esg consulting firms headquartered in Luxembourg (RevenueBase, August 2026). RevenueBase tracks 298 professional contacts across them, including 72 with verified work emails and 5 with mobile numbers. Luxembourg is the largest hub.

This list covers esg consulting firms headquartered in Luxembourg, 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.

35Companies

298Contacts tracked

72Verified emails

5Mobile numbers

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The 12 largest esg consulting firms based in Luxembourg

Ranked by team size

Top 12 of 35 esg consulting firms based in Luxembourg, 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	Hiram Finance	n/a	11-50	37	18
2	Intraco Consulting	Weiswampach	11-50	35	20
3	Energie ET Environnement S.A	Luxembourg	11-50	23	17
4	Forethix	Capellen	1-10	13	6
5	Eurogroup Consulting Luxembourg	Luxembourg	11-50	12	2
6	YOY ESG Cloud	Luxembourg	51-200	5	3
7	Iooikos	Bertrange	1-10	3	1
8	Greenlit Consultancy Sarl Jackie Geisen	Bereldange Bereldange	1-10	2	1
9	Ripple Effect	Luxembourg	1-10	1	1
10	Everard Consulting & Communication	Wahlhausen	1-10	1	1
11	Primera Purpose Advisory	Luxembourg	1-10	1	1
12	Change Digital	Luxembourg	1-10	1	1

Showing 12 of 35 esg consulting firms based in Luxembourg

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Esg consulting firms based in Luxembourg at a glance

As of Aug 28, 2026

1-10Median size (employees)

LuxembourgLargest hub · 18 HQs

5Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Esg consulting firms by metro

Metro	Companies
Esg consulting firms in Luxembourg	18
Esg consulting firms in Bertrange	2
Esg consulting firms in Esch-Sur-Alzette	2
Esg consulting firms in Niederpallen Luxembourg	1
Esg consulting firms in Senningerberg	1
Esg consulting firms in Wahlhausen	1
Esg consulting firms in Bereldange Bereldange	1

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 “esg consulting firms”, with match quality audited by blind human judging, and headquartered in Luxembourg.
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 esg consulting firms are there based in Luxembourg?

There are 35 esg consulting firms headquartered in Luxembourg as of August 2026 (RevenueBase).

What is the largest company on this list?

Hiram Finance, headquartered in Luxembourg, tops this list with the largest team on record.

Which city has the most esg consulting firms?

Luxembourg leads with 18 headquartered companies, followed by Bertrange (2) and Esch-Sur-Alzette (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 72 verified decision-maker contacts tracked across these 35 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.