Company lists · Data verified August 2026

Top 14 Clean energy consulting firms based in Luxembourg

Name: Clean energy 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 31 companies tracked

There are 31 clean energy consulting firms headquartered in Luxembourg (RevenueBase, August 2026). RevenueBase tracks 313 professional contacts across them, including 174 with verified work emails and 2 with mobile numbers. Luxembourg is the largest hub.

This list covers clean energy 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.

31Companies

313Contacts tracked

174Verified emails

2Mobile numbers

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The 14 largest clean energy consulting firms based in Luxembourg

Ranked by team size

Top 14 of 31 clean energy 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	Tr-Engineering	Luxembourg	51-200	102	56
2	Goblet Lavandier & Associés S.A	n/a	51-200	71	60
3	Energieagence Agence DE L'energie S.A	Howald	11-50	32	20
4	Buildtec	Steinfort	1-10	19	9
5	Voltmax Sarl	Soleuvre Sanem	11-50	17	5
6	Entec Ingénieurs-Conseils	Petange	11-50	10	9
7	Asars Constructions S.A	Luxembourg	1-10	7	3
8	Letz Green Renewables	Esch-Sur-Alzette	1-10	6	3
9	EG Energy	Beckerich Diekirch	1-10	4	3
10	ECO Novis S.À R.L. Ingénieurs-Conseils	Contern	1-10	3	2
11	Topsolar S.A	Heiderscheid Diekirch	11-50	3	1
12	Ides Sàrl	Steinfort	1-10	3	1
13	Building Consult Partner	Luxembourg	1-10	1	1
14	Everard Consulting & Communication	Wahlhausen	1-10	1	1

Showing 14 of 31 clean energy consulting firms based in Luxembourg

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Clean energy consulting firms based in Luxembourg at a glance

As of Aug 28, 2026

1-10Median size (employees)

LuxembourgLargest hub · 12 HQs

2Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Clean energy consulting firms by metro

Metro	Companies
Clean energy consulting firms in Luxembourg	12
Clean energy consulting firms in Steinfort	2
Clean energy consulting firms in Contern	2
Clean energy consulting firms in Heiderscheid Diekirch	1
Clean energy consulting firms in Petange	1
Clean energy consulting firms in Wahlhausen	1
Clean energy consulting firms in Mondorf Les Bains	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 “clean energy 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; 2 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 clean energy consulting firms are there based in Luxembourg?

There are 31 clean energy consulting firms headquartered in Luxembourg as of August 2026 (RevenueBase).

What is the largest company on this list?

Tr-Engineering, headquartered in Luxembourg, tops this list with the largest team on record.

Which city has the most clean energy consulting firms?

Luxembourg leads with 12 headquartered companies, followed by Steinfort (2) and Contern (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 174 verified decision-maker contacts tracked across these 31 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.