Company lists · Data refreshed September 2026

Top 24 Engineering consultancy companies based in Switzerland

Name: Engineering consultancy companies based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 1,233 companies tracked

RevenueBase identified 1,233 engineering consultancy companies headquartered in Switzerland as of September 2026 and tracks 16,530 professional contacts across them, including 7,877 with verified work emails and 275 with mobile numbers. Zurich is the largest hub.

This list covers engineering consultancy companies headquartered in Switzerland, 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 24, 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 24, 2026 86% judged on-target in blind review

1,233Companies

16,530Contacts tracked

7,877Verified emails

275Mobile numbers

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The 24 largest engineering consultancy companies based in Switzerland

Ranked by team size

Top 24 of 1,233 engineering consultancy companies based in Switzerland, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to engineering consultancy companies: 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	Amstein Walthert	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 24, 2026	1,001-5,000	563 contacts →
	Indirect evidence “Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Source: RevenueBase Database · checked Sep 24, 2026
2	Gruner	Indirect evidence	Basel, SwitzerlandHQ checked Sep 24, 2026	1,001-5,000	462 contacts →
	Indirect evidence “Gruner at a glance Founded: 1862 in Basel, Switzerland Legal form: Since 1970, public limited company owned by the founding families and employees Employees: more than 1,200 from…” Source: RevenueBase Database · checked Sep 24, 2026
3	WSP In Switzerland	Partial evidence	Lausanne, SwitzerlandHQ checked Sep 24, 2026	501-1,000	442 contacts →
	Partial evidence “We are one of the world’s leading professional services firms, uniting our engineering, advisory and science-based expertise to shape communities to advance humanity.” Source: RevenueBase Database · checked Sep 24, 2026
4	Basler & Hofmann	Partial evidence	Zürich, SwitzerlandHQ checked Sep 24, 2026	501-1,000	433 contacts →
	Partial evidence “We are an independent engineering, planning and consulting company.” Source: RevenueBase Database · checked Sep 24, 2026
5	EBP Schweiz	Partial evidence	Zurich, SwitzerlandHQ checked Sep 24, 2026	201-500	374 contacts →
	Partial evidence “As an international consulting and engineering company, we stand out by our combined excellence to deliver forward-thinking solutions for our clients' most complex challenges.” Source: RevenueBase Database · checked Sep 24, 2026
6	Emch Berger Group	Indirect evidence	Bern, SwitzerlandHQ checked Sep 24, 2026	501-1,000	283 contacts →
	Indirect evidence “Comprehensive know-how and many years of experience Since 1953, we have been providing our clients with design, consulting and project management services for all phases of their…” Source: RevenueBase Database · checked Sep 24, 2026
7	Lombardi Engineering Switzerland	Partial evidence	Bellinzona-giubiasco, SwitzerlandHQ checked Sep 24, 2026	201-500	276 contacts →
	Partial evidence “Lombardi Switzerland is a leading engineering company with over 400 skilled engineers and technicians delivering multidisciplinary and specialized services in infrastructure and…” Source: RevenueBase Database · checked Sep 24, 2026
8	Holinger	Partial evidence	Liestal, SwitzerlandHQ checked Sep 24, 2026	501-1,000	265 contacts →
	Partial evidence “For over 90 years, HOLINGER has been solving engineering and scientific tasks in various specialist areas related to the water cycle.” Source: RevenueBase Database · checked Sep 24, 2026
9	Drees & Sommer Switzerland	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 24, 2026	201-500	164 contacts →
	Indirect evidence “Drees & Sommer Switzerland is a consulting company providing a single source of consultation and implementation services for the real estate, infrastructure and industrial markets.” Source: RevenueBase Database · checked Sep 24, 2026
10	IUB Engineering LTD	Partial evidence	Bern 14, SwitzerlandHQ checked Sep 24, 2026	201-500	156 contacts →
	Partial evidence “IUB Engineering AG has been an overall planner for infrastructure systems for over 50 years.” Source: RevenueBase Database · checked Sep 24, 2026
11	PROSE	Partial evidence	Winterthur, SwitzerlandHQ checked Sep 24, 2026	51-200	151 contacts →
	Partial evidence “We offer independent engineering and consulting services with unique expertise in railway technology.” Source: RevenueBase Database · checked Sep 24, 2026
12	HHM Gruppe Hefti. Hess. Martignoni	Partial evidence	Aarau, SwitzerlandHQ checked Sep 24, 2026	201-500	143 contacts →
	Partial evidence “An engineering company is only as good as the innovative spirit of its employees.” Source: RevenueBase Database · checked Sep 24, 2026
13	Jauslin Stebler AG	Indirect evidence	Muttenz, SwitzerlandHQ checked Sep 24, 2026	51-200	108 contacts →
	Indirect evidence “Die komplexen Rahmenbedingungen erfordern eine ganzheitliche Sicht der Probleme, kreative Prozesse und eine entsprechend eingespielte Organisation.” Source: RevenueBase Database · checked Sep 24, 2026
14	FIDIC	Indirect evidence	Geneva, SwitzerlandHQ checked Sep 24, 2026	11-50	96 contacts →
	Indirect evidence “FIDIC is the International Federation of Consulting Engineers.” Source: RevenueBase Database · checked Sep 24, 2026
15	Aegerter & Bosshardt	Indirect evidence	Basel, SwitzerlandHQ checked Sep 24, 2026	51-200	86 contacts →
	Indirect evidence “Mit über 180 Mitarbeitenden zählt AEBO zu den führenden Ingenieurbüros in der Nordwestschweiz.” Source: RevenueBase Database · checked Sep 24, 2026
16	Stutz AG Bauunternehmung	Indirect evidence	Hefenhofen, SwitzerlandHQ checked Sep 24, 2026	501-1,000	86 contacts →
	Indirect evidence “Wir bauen mit Menschen für Menschen Mit Professionalität und Kreativität auf dem Bau hat sich die STUTZ AG zum führenden Bauunternehmen in der Ostschweiz entwickelt.” Source: RevenueBase Database · checked Sep 24, 2026
17	Bänziger Partner Ag, Ingenieure Planer	Indirect evidence	Buchs, SwitzerlandHQ checked Sep 24, 2026	51-200	83 contacts →
	Indirect evidence “1959 durch Dialma Jakob Bänziger gegründet - heute eine der führenden Bauingenieurfirmen in der Schweiz.” Source: RevenueBase Database · checked Sep 24, 2026
18	Ingeni SA	Partial evidence	Lausanne, SwitzerlandHQ checked Sep 24, 2026	51-200	82 contacts →
	Partial evidence “INGENI is a structural engineering company with a strong team of skilled professionals and hardened experience in the design and construction of structures and civil engineering…” Source: RevenueBase Database · checked Sep 24, 2026
19	Willers	Partial evidence	Stadtkreis 9, SwitzerlandHQ checked Sep 24, 2026	51-200	81 contacts →
	Partial evidence “Willers is an international engineering company for high-tech buildings and infrastructures.” Source: RevenueBase Database · checked Sep 24, 2026
20	Gartenmann Engineering AG	Indirect evidence	Bern, SwitzerlandHQ checked Sep 24, 2026	51-200	71 contacts →
	Indirect evidence “Wir sind ein Team von Spezialingenieuren/innen und Berater/innen.” Source: RevenueBase Database · checked Sep 24, 2026
21	Gähler UND Partner AG	Indirect evidence	Ennetbaden, SwitzerlandHQ checked Sep 24, 2026	51-200	70 contacts →
	Indirect evidence “Gähler Partner steht für ganzheitliches Denken im Planen und Bauen.” Source: RevenueBase Database · checked Sep 24, 2026
22	Betelec SA	Indirect evidence	Villars-ste-croix, SwitzerlandHQ checked Sep 24, 2026	51-200	69 contacts →
	Indirect evidence “Nous sommes une entreprise qui a pour but l'ingénierie, le conseil, la conception, l'établissement de projets, la direction des travaux et l'exploitation dans le domaine des…” Source: RevenueBase Database · checked Sep 24, 2026
23	SD Ingénierie	Indirect evidence	Suisse-romande, SwitzerlandHQ checked Sep 24, 2026	51-200	69 contacts →
	Indirect evidence “Fondée en 1955 à Lausanne, sd ingénierie se compose aujourd’hui d’environ 180 collaborateurs répartis au sein de sept filiales cantonales.” Source: RevenueBase Database · checked Sep 24, 2026
24	Rothpletz, Lienhard CIE AG Bauingenieure & Bauunternehmung	Indirect evidence	Aarau, SwitzerlandHQ checked Sep 24, 2026	51-200	69 contacts →
	Indirect evidence “Bauunternehmung und Ingenieurbüro unter einem Dach Als einzige Schweizer Unternehmung verbinden wir seit 1918 Planung und Ausführung im Bauwesen.” Source: RevenueBase Database · checked Sep 24, 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: engineering consultancy companies. 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 engineering consultancy companies.
Partial evidence: Its own public description names part of engineering consultancy companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering consultancy companies. 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 24 of 1,233 engineering consultancy companies based in Switzerland

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Engineering consultancy companies based in Switzerland at a glance

As of Sep 24, 2026

47.7%Verified-email coverage

1.7%Mobile-number coverage

13.4Average contacts per company

1-10Median size (employees)

9.0%Largest-city concentration · Zurich

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

684

11-50

398

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

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

Email last verified

Median 26.0d

5,9320–30

1,79131–60

12961–90

290–180

23180+

Company record updated

Median 76.0d

00–30

1,56331–60

9,60561–90

4,59090–180

772180+

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 engineering consultancy companies, 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 Switzerland whose own description of what they do matches “engineering consultancy companies”. 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 engineering consultancy companies), 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 engineering consultancy companies, and records with no verified work email. Companies headquartered outside Switzerland 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, 7,877 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 24, 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.

Engineering consultancy companies by metro

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 engineering consultancy companies, 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 engineering consultancy companies are there based in Switzerland?

RevenueBase identified 1,233 engineering consultancy companies headquartered in Switzerland 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?

Amstein Walthert, headquartered in Zurich, tops this list with the largest team on record.

Which city has the most engineering consultancy companies?

Zurich leads with 111 headquartered companies, followed by Lausanne (41) and Bern (28).

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 7,877 verified decision-maker contacts tracked across these 1,233 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 24, 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.