Company lists · Data refreshed September 2026

Top 25 Water resources engineering firms based in Switzerland

Name: Water resources engineering firms based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 188 companies tracked

RevenueBase identified 188 water resources engineering firms headquartered in Switzerland as of September 2026 and tracks 4,119 professional contacts across them, including 2,123 with verified work emails. Zurich is the largest hub.

This list covers water resources engineering firms 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 19, 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 19, 2026 86% judged on-target in blind review

188Companies

4,119Contacts tracked

2,123Verified emails

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The 25 largest water resources engineering firms based in Switzerland

Ranked by team size

Top 25 of 188 water resources engineering firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to water resources engineering 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	Amstein Walthert	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	563 contacts →
	Indirect evidence “Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Source: RevenueBase Database · checked Sep 19, 2026
2	EBP Schweiz	Partial evidence	Zurich, SwitzerlandHQ checked Sep 19, 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 19, 2026
3	Emch Berger Group	Indirect evidence	Bern, SwitzerlandHQ checked Sep 19, 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 19, 2026
4	Lombardi Engineering Switzerland	Partial evidence	Bellinzona-giubiasco, SwitzerlandHQ checked Sep 19, 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 19, 2026
5	Holinger	Strong evidence	Liestal, SwitzerlandHQ checked Sep 19, 2026	501-1,000	265 contacts →
	Strong 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 19, 2026
6	IUB Engineering LTD	Partial evidence	Bern 14, SwitzerlandHQ checked Sep 19, 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 19, 2026
7	Jauslin Stebler AG	Indirect evidence	Muttenz, SwitzerlandHQ checked Sep 19, 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 19, 2026
8	Hunziker Betatech AG	Indirect evidence	Winterthur, SwitzerlandHQ checked Sep 19, 2026	201-500	101 contacts →
	Indirect evidence “Unter dem Motto „Einfach.” Source: RevenueBase Database · checked Sep 19, 2026
9	SD Ingénierie	Indirect evidence	Suisse-romande, SwitzerlandHQ checked Sep 19, 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 19, 2026
10	BSB Partner Ingenieure UND Planer AG	Indirect evidence	Biberist, SwitzerlandHQ checked Sep 19, 2026	51-200	42 contacts →
	Indirect evidence “Seit 1942 leistet BSB + Partner relevante Beiträge zu einer nachhaltigen Entwicklung und trägt dazu bei, die Zukunft umsichtig und mit langfristigem Blick zu formen.” Source: RevenueBase Database · checked Sep 19, 2026
11	Ryser Ingenieure AG	Indirect evidence	Bern, SwitzerlandHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “Wir sind eine eigenständige Ingenieurunternehmung für Planung, Beratung und Realisierung mit Schwergewicht im Siedlungswasserbau.” Source: RevenueBase Database · checked Sep 19, 2026
12	Mauler SA	Indirect evidence	Neuchâtel, SwitzerlandHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “Mauler SA, bureau d’ingénierie civile et environnementale établi depuis 1950 à Neuchâtel, est spécialisé dans la planification, la conception et la réalisation de projets, il…” Source: RevenueBase Database · checked Sep 19, 2026
13	EFP AG	Indirect evidence	Regensdorf, SwitzerlandHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “EFP AG Ingenieure Planer Geometer setzen sich für zukunftsgerichtete Ingenieurlösungen ein, die den Bedürfnissen der Nutzerinnen und Nutzer genauso verpflichtet sind wie einem…” Source: RevenueBase Database · checked Sep 19, 2026
14	Kuster Hager Gruppe	Indirect evidence	Uznach, SwitzerlandHQ checked Sep 19, 2026	51-200	24 contacts →
	Indirect evidence “GEBÜNDELTES FACHWISSEN FÜR BAU, WASSER UND UMWELT Unter aktivem Einsatz der zweiten und dritten Generation der Inhaberfamilie bietet die KUSTER+HAGER Gruppe dank ihren…” Source: RevenueBase Database · checked Sep 19, 2026
15	Theiler Ingenieure AG	Indirect evidence	Thun, SwitzerlandHQ checked Sep 19, 2026	51-200	23 contacts →
	Indirect evidence “Ihr kompetenter Partner für Planung und Bauleitung im Hochbau, Tiefbau, Wasserbau und Brückenbau.” Source: RevenueBase Database · checked Sep 19, 2026
16	C S Ingenieure AG	Indirect evidence	Hasle B.b., SwitzerlandHQ checked Sep 19, 2026	51-200	22 contacts →
	Indirect evidence “Wir sind ein Team von Ingenieuren, Bautechnikern und qualifizierten Bauzeichnern und Ihr Ansprechpartner für alle Aufgaben im Ingenieurbau.” Source: RevenueBase Database · checked Sep 19, 2026
17	Landis AG	Indirect evidence	Geroldswil, SwitzerlandHQ checked Sep 19, 2026	51-200	20 contacts →
	Indirect evidence “Die Landis AG wurde 1961 als «Bauingenieurunternehmung Hans Landis AG» von Hans Landis gegründet.” Source: RevenueBase Database · checked Sep 19, 2026
18	Hydrique Engineers	Partial evidence	Le Mont Sur Lausanne, SwitzerlandHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “OUR HISTORY Hydrique Ingénieurs was founded in 2006 by two civil engineers, both passionate about water and energy domains.” Source: RevenueBase Database · checked Sep 19, 2026
19	Ingenias AG	Indirect evidence	Weinfelden, SwitzerlandHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Ingenias ist Ihr Umwelt-Ingenieurbüro für anspruchsvolle Aufgaben in den Bereichen Umwelt, Wasser und Geologie.” Source: RevenueBase Database · checked Sep 19, 2026
20	K. Lienhard AG	Indirect evidence	Buchs, SwitzerlandHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “K.” Source: RevenueBase Database · checked Sep 19, 2026
21	Flussbau AG SAH	Indirect evidence	Zürich + Bern, SwitzerlandHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “DE] Das Ingenieurbüro Flussbau AG SAH bearbeitet seit 1993 mit viel Fachwissen und grossem Engagement Projekte und Studien in den Bereichen Fluss- und Wasserbau.” Source: RevenueBase Database · checked Sep 19, 2026
22	Müller Ingenieure AG	Indirect evidence	Dielsdorf, SwitzerlandHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “Wir sind ein interdisziplinär ausgerichtetes Ingenieur- und Planungsbüro mit Sitz in Dielsdorf.” Source: RevenueBase Database · checked Sep 19, 2026
23	Gruner Stucky LTD	Indirect evidence	Renens, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	16 contacts →
	Indirect evidence “Gruner Stucky Ltd (formerly Stucky Ltd) is amongst the world leaders in design both for construction and rehabilitation of dam & hydropower schemes.” Source: RevenueBase Database · checked Sep 19, 2026
24	SRP Ingenieur AG	Indirect evidence	Brig, SwitzerlandHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “Wir sind Ihr zuverlässiger und engagierter Partner für eine zielgerichtete und faire Zusammenarbeit.” Source: RevenueBase Database · checked Sep 19, 2026
25	Waldburger Ingenieure AG	Partial evidence	Aarau, SwitzerlandHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “For more than 100 years, Waldburger Ingenieure AG and its predecessor companies have been heavily involved in urban water management.” Source: RevenueBase Database · checked Sep 19, 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: water resources engineering 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 water resources engineering firms.
Partial evidence: Its own public description names part of water resources engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water resources engineering 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 188 water resources engineering firms based in Switzerland

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Water resources engineering firms based in Switzerland at a glance

As of Sep 19, 2026

51.5%Verified-email coverage

21.9Average contacts per company

11-50Median size (employees)

5.9%Largest-city concentration · Zurich

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Switzerland, so it is reported there. Company counts and contact totals on this page are exact for Switzerland, over 188 companies.

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 water resources engineering 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 Switzerland whose own description of what they do matches “water resources engineering 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 water resources engineering 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 water resources engineering firms, 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, 2,123 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 19, 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 water resources engineering 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 water resources engineering firms are there based in Switzerland?

RevenueBase identified 188 water resources engineering firms 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 water resources engineering firms?

Zurich leads with 11 headquartered companies, followed by Bern (7) and Lausanne (6).

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 2,123 verified decision-maker contacts tracked across these 188 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 19, 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.