Company lists · Data verified August 2026

Top 16 Clean energy consultancy companies based in Luxembourg

Name: Clean energy consultancy companies based in Luxembourg
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 41 companies tracked

There are 41 clean energy consultancy companies headquartered in Luxembourg (RevenueBase, August 2026). RevenueBase tracks 381 professional contacts across them, including 206 with verified work emails and 2 with mobile numbers. Luxembourg is the largest hub.

This list covers clean energy consultancy companies 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.

41Companies

381Contacts tracked

206Verified emails

2Mobile numbers

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The 16 largest clean energy consultancy companies based in Luxembourg

Ranked by team size

Top 16 of 41 clean energy consultancy companies 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	Electris Luxembourg	Luxembourg	11-50	35	19
4	Energieagence Agence DE L'energie S.A	Howald	11-50	32	20
5	Ineo Engineering Sàrl	Steinfort	11-50	19	15
6	Buildtec	Steinfort	1-10	19	9
7	Voltmax Sarl	Soleuvre Sanem	11-50	17	5
8	Entec Ingénieurs-Conseils	Petange	11-50	10	9
9	Letz Green Renewables	Esch-Sur-Alzette	1-10	6	3
10	EG Energy	Beckerich Diekirch	1-10	4	3
11	ECO Novis S.À R.L. Ingénieurs-Conseils	Contern	1-10	3	2
12	Topsolar S.A	Heiderscheid Diekirch	11-50	3	1
13	Ides Sàrl	Steinfort	1-10	3	1
14	Iooikos	Bertrange	1-10	3	1
15	Everard Consulting & Communication	Wahlhausen	1-10	1	1
16	Building Consult Partner	Luxembourg	1-10	1	1

Showing 16 of 41 clean energy consultancy companies based in Luxembourg

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Clean energy consultancy companies based in Luxembourg at a glance

As of Aug 28, 2026

1-10Median size (employees)

LuxembourgLargest hub · 14 HQs

2Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Clean energy consultancy companies by metro

Metro	Companies
Clean energy consultancy companies in Luxembourg	14
Clean energy consultancy companies in Steinfort	3
Clean energy consultancy companies in Contern	3
Clean energy consultancy companies in Bertrange	2
Clean energy consultancy companies in Niederpallen Luxembourg	1
Clean energy consultancy companies in Heiderscheid Diekirch	1
Clean energy consultancy companies in Petange	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 consultancy companies”, 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; 3 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 consultancy companies are there based in Luxembourg?

There are 41 clean energy consultancy companies 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 consultancy companies?

Luxembourg leads with 14 headquartered companies, followed by Steinfort (3) and Contern (3).

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 206 verified decision-maker contacts tracked across these 41 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.