Company lists · Data verified August 2026

Top 25 Construction consulting firms based in Switzerland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,015 companies tracked

There are 1,015 construction consulting firms headquartered in Switzerland (RevenueBase, August 2026). RevenueBase tracks 5,878 professional contacts across them, including 2,544 with verified work emails and 111 with mobile numbers. Zurich is the largest hub.

This list covers construction consulting firms headquartered in Switzerland, 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.

1,015Companies

5,878Contacts tracked

2,544Verified emails

111Mobile numbers

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The 25 largest construction consulting firms based in Switzerland

Ranked by team size

Top 25 of 1,015 construction consulting firms based in Switzerland, 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	Amstein Walthert	Buchs	1,001-5,000	562	384
2	IUB Engineering LTD	Visp	201-500	156	16
3	Stutz AG Bauunternehmung	St. Gallen	501-1,000	85	38
4	Rothpletz, Lienhard CIE AG Bauingenieure & Bauunternehmung	Zurich	51-200	70	38
5	Gähler UND Partner AG	Ennetbaden	51-200	68	30
6	Groupe -T	Lausanne	51-200	68	4
7	DSP Ingenieure & Planer AG	Uster	51-200	66	43
8	Groupe Egli AG	Biel	201-500	63	32
9	Project Partners LTD Consulting Engineers	Lugano	51-200	55	1
10	Doutaz SA	Bulle	51-200	54	33
11	Mawi Group SA	Bellinzona	51-200	53	39
12	SJB Kempter Fitze AG	Frauenfeld	51-200	53	34
13	ZPF Ingenieure AG	Zurich	51-200	39	31
14	Ernst Frey AG	Kaiseraugst	201-500	39	20
15	Proplaning AG	Basel	51-200	38	24
16	Wh-P Ingenieure	Basel	51-200	35	3
17	Henauer Gugler AG	Berne	51-200	31	15
18	GVH Ingénieurs Civils EPF SIA	Saint-Blaise	51-200	30	27
19	Rofra Baut	n/a	51-200	28	1
20	Synaxis Ag, Zurich	Zurich	51-200	25	13
21	PEG	Lancy	51-200	25	8
22	KMP Architektur AG	Wettingen	51-200	23	17
23	Theiler Ingenieure AG	Thun Thun	51-200	23	13
24	C S Ingenieure AG	Burgdorf	51-200	23	13
25	ATB SA Ingénieurs-Conseils SIA Suisse.Ing	Tramelan	51-200	22	11

Showing 25 of 1,015 construction consulting firms based in Switzerland

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Construction consulting firms based in Switzerland at a glance

As of Aug 28, 2026

1-10Median size (employees)

ZurichLargest hub · 92 HQs

111Contacts with mobile numbers

10Emails re-verified in last 30 days

Companies by employee count

1-10

670

11-50

254

51-200

201-500

501-1,000

1,001-5,000

Construction consulting firms by metro

Metro	Companies
Construction consulting firms in Zurich	92
Construction consulting firms in Lausanne	31
Construction consulting firms in Basel	26
Construction consulting firms in Winterthur	17
Construction consulting firms in Geneve	15
Construction consulting firms in Bern	15
Construction consulting firms in Lugano	11

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 “construction consulting firms”, with match quality audited by blind human judging, and headquartered in Switzerland.
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; 10 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 construction consulting firms are there based in Switzerland?

There are 1,015 construction consulting firms headquartered in Switzerland as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most construction consulting firms?

Zurich leads with 92 headquartered companies, followed by Lausanne (31) and Basel (26).

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 2,544 verified decision-maker contacts tracked across these 1,015 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.