Company lists · Data refreshed September 2026

Top 25 Environmental consultancy firms based in Luxembourg

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 48 companies tracked

RevenueBase identified 48 environmental consultancy firms headquartered in Luxembourg as of September 2026 and tracks 844 professional contacts across them, including 421 with verified work emails and 7 with mobile numbers. Luxembourg is the largest hub.

This list covers environmental consultancy firms headquartered in Luxembourg, 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

48Companies

844Contacts tracked

421Verified emails

7Mobile numbers

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The 25 largest environmental consultancy firms based in Luxembourg

Ranked by team size

Top 25 of 48 environmental consultancy firms based in Luxembourg, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to environmental consultancy 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Tr-Engineering	Indirect evidence	Luxembourg	51-200	102 contacts →
	Indirect evidence “Depuis sa création en 1988, le bureau d'ingénieurs-conseils TR-Engineering apporte son concours à l'élaboration et à la réalisation de projets d'infrastructures et de programmes…” Source: RevenueBase Database · checked Sep 2, 2026
2	Betic Ingénieurs-Conseils, Part Of Sweco	Indirect evidence	Steinheim, Luxembourg	51-200	84 contacts →
	Indirect evidence “L’expertise dont fait preuve le bureau d’études techniques et d’Ingénieurs-Conseils Betic dans les services d’études, de conseils, d’assistance et de coordination dans les projets…” Source: RevenueBase Database · checked Sep 2, 2026
3	Inca Ingénieurs Conseils Associés S.À R.L	Indirect evidence	Esch-Sur-Alzette, Luxembourg	51-200	82 contacts →
	Indirect evidence “INCA Ingénieurs Conseils Associés S.à.r.l.” Source: RevenueBase Database · checked Sep 2, 2026
4	Goblet Lavandier & Associés S.A	Indirect evidence	Luxembourg	51-200	71 contacts →
	Indirect evidence “Goblet Lavandier & Associés est un des plus grands bureaux d’ingénieurs-conseils luxembourgeois spécialisé en génie technique et énergétique.” Source: RevenueBase Database · checked Sep 2, 2026
5	Best Ingénieurs-Conseils	Indirect evidence	Senningerberg, Luxembourg	51-200	60 contacts →
	Indirect evidence “BEST Ingénieurs-Conseils : 32 ans d’excellence et d’innovation!” Source: RevenueBase Database · checked Sep 2, 2026
6	SIX Consulting & Engineering SA	Indirect evidence	Luxembourg	51-200	56 contacts →
	Indirect evidence “Créé en 2005 le bureau d’études SIX Consulting & Engineering SA comprend une équipe de 65 personnes et propose ses services en - Architecture - Stabilité - Techniques Spéciales -…” Source: RevenueBase Database · checked Sep 2, 2026
7	Intraco Consulting	Partial evidence	Weiswampach, Luxembourg	11-50	35 contacts →
	Partial evidence “Grâce à nos consultants et à notre large réseau de spécialistes, nous avons développé une expertise de pointe dans une large gamme de services incluant des conseils en stratégie…” Source: RevenueBase Database · checked Sep 2, 2026
8	Jean Schmit Engineering	Indirect evidence	Luxembourg	51-200	30 contacts →
	Indirect evidence “Le bureau a été fondé en 1981 par Jean Schmit.” Source: RevenueBase Database · checked Sep 2, 2026
9	Energie ET Environnement S.A	Indirect evidence	Luxembourg	11-50	23 contacts →
	Indirect evidence “Bureau d'ingénieur-conseil spécialisé dans les domaines de l'énergie, des déchets, de l'acoustique, de la sécurité incendie et de l'environnement : études de faisabilité…” Source: RevenueBase Database · checked Sep 2, 2026
10	SML Ingénieurs Conseils	Indirect evidence	Weiswampach Diekirch, Luxembourg	11-50	18 contacts →
	Indirect evidence “Bureau d'étude pluridisciplinaire d'ingénieurs.” Source: RevenueBase Database · checked Sep 2, 2026
11	Zeyen Baumann	Indirect evidence	Bereldange, Luxembourg	11-50	14 contacts →
	Indirect evidence “Zeyen+Baumann est un bureau d’études pluridisciplinaire avec plus de 35 ans d’expérience au Luxembourg.” Source: RevenueBase Database · checked Sep 2, 2026
12	E3consult	Indirect evidence	Mertert, Luxembourg	11-50	14 contacts →
	Indirect evidence “Crée en 2011, E3Consult est une jeune entreprise composée d'une équipe multidisciplinaire d'architectes, d'ingénieurs, de scientifiques et de spécialistes en biologie de l’habitat.” Source: RevenueBase Database · checked Sep 2, 2026
13	Kneip Geocad	Indirect evidence	Luxembourg	11-50	12 contacts →
	Indirect evidence “Bureau d’études, ingénieurs-conseils, spécialistes du cadastre, génie civil, imagerie 3D, remembrement, environnement, bornage, SIG et PAP.” Source: RevenueBase Database · checked Sep 2, 2026
14	Entec Ingénieurs-Conseils	Indirect evidence	Petange, Luxembourg	11-50	10 contacts →
	Indirect evidence “Nos prestations comprennent les domaines de l'énergie, la physique, l'écologie et les techniques du bâtiment.” Source: RevenueBase Database · checked Sep 2, 2026
15	Eneco Ingénieurs-Conseils S.A	Indirect evidence	Contern, Luxembourg	11-50	8 contacts →
	Indirect evidence “GEBÄUDESCHADSTOFFE ALTLASTEN BRANDSCHUTZ GENEHMIGUNGSANTRÄGE GEOTECHNIK NATURSCHUTZ Das Ingenieurbüro ENECO Ingénieurs-Conseils S.A.” Source: RevenueBase Database · checked Sep 2, 2026
16	SÉQ	Indirect evidence	Luxembourg	1-10	6 contacts →
	Indirect evidence “SéQ vous aide à intégrer la gestion de la sécurité au cœur de vos projets, dès la conception, dans son exécution et dans la phase d’exploitation de votre activité.” Source: RevenueBase Database · checked Sep 2, 2026
17	Ciex Sàrl	Indirect evidence	Luxembourg	11-50	5 contacts →
	Indirect evidence “Plus de 25 ans d'existence de la première société fondatrice du Groupe Ciex.” Source: RevenueBase Database · checked Sep 2, 2026
18	Ëmweltberodung Lëtzebuerg EBL	Strong evidence	Luxembourg	1-10	4 contacts →
	Strong evidence “Environmental consultancy for communities, institutions and private households.” Source: RevenueBase Database · checked Sep 2, 2026
19	ECO Novis S.À R.L. Ingénieurs-Conseils	Indirect evidence	Contern, Luxembourg	1-10	3 contacts →
	Indirect evidence “eco:novis bietet zukunftsorientierte Lösungen für eine nachhaltige Energie- und Umweltwirtschaft und erbringt Ingenieurdienstleistungen.” Source: RevenueBase Database · checked Sep 2, 2026
20	Sensbox SIS	Indirect evidence	Luxembourg	1-10	3 contacts →
	Indirect evidence “SENSBOX, construisons le futur!” Source: RevenueBase Database · checked Sep 2, 2026
21	Studio Maestrale	Partial evidence	Luxembourg	1-10	3 contacts →
	Partial evidence “Project Management Assistance Technique & Expertise assermentée Innovation & Ecologie Urbaine Studio Maestrale is an engineering consultancy company with innovation and…” Source: RevenueBase Database · checked Sep 2, 2026
22	Ides Sàrl	Indirect evidence	Steinfort, Luxembourg	1-10	3 contacts →
	Indirect evidence “IDES Engineering is a green building "boutique" engineering firm, dedicated to energy-efficient and sustainable real estate projects since 2008.” Source: RevenueBase Database · checked Sep 2, 2026
23	Géoconseils	Indirect evidence	Luxembourg	11-50	1 contacts →
	Indirect evidence “Géoconseils, est un bureau d'études qui couvre toutes les problématiques liées au sous-sol à travers ses compétences en géotechnique, environnement et gestion des sites pollués…” Source: RevenueBase Database · checked Sep 2, 2026
24	biota.lu	Indirect evidence	Hostert Hostert, Luxembourg	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 2, 2026
25	Everard Consulting & Communication	Indirect evidence	Wahlhausen, Luxembourg	1-10	1 contacts →
	Indirect evidence “Why choose to work with us?” Source: RevenueBase Database · checked Sep 2, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: environmental consultancy firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names environmental consultancy firms.
Partial evidence: Its own public description names part of environmental consultancy firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental consultancy firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 48 environmental consultancy firms based in Luxembourg

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Environmental consultancy firms based in Luxembourg at a glance

As of Sep 2, 2026

49.9%Verified-email coverage

0.8%Mobile-number coverage

17.6Average contacts per company

11-50Median size (employees)

43.8%Largest-city concentration · Luxembourg

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 environmental consultancy 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 Luxembourg whose own description of what they do matches “environmental consultancy 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 environmental consultancy 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 environmental consultancy firms, and records with no verified work email. Companies headquartered outside Luxembourg 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, 421 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 2, 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.

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 environmental consultancy 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 environmental consultancy firms are there based in Luxembourg?

RevenueBase identified 48 environmental consultancy firms headquartered in Luxembourg 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?

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

Which city has the most environmental consultancy firms?

Luxembourg leads with 21 headquartered companies, followed by Contern (4) and Niederpallen Luxembourg (1).

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 421 verified decision-maker contacts tracked across these 48 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 2, 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.