Company lists · Data refreshed September 2026

Top 25 Port engineering firms based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 169 companies tracked

RevenueBase identified 169 port engineering firms headquartered in Switzerland as of September 2026 and tracks 2,965 professional contacts across them, including 1,418 with verified work emails. Zurich is the largest hub.

This list covers port 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 17, 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 17, 2026 86% judged on-target in blind review

169Companies

2,965Contacts tracked

1,418Verified emails

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The 25 largest port engineering firms based in Switzerland

Ranked by team size

Top 25 of 169 port engineering firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to port 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 17, 2026	1,001-5,000	563 contacts →
	Indirect evidence “Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Source: RevenueBase Database · checked Sep 17, 2026
2	Gruner	Indirect evidence	Basel, SwitzerlandHQ checked Sep 17, 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 17, 2026
3	IUB Engineering LTD	Partial evidence	Bern 14, SwitzerlandHQ checked Sep 17, 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 17, 2026
4	Locher Ingenieure	Indirect evidence	Stadtkreis 1 Altstadt, SwitzerlandHQ checked Sep 17, 2026	51-200	67 contacts →
	Indirect evidence “In der Bearbeitung von interdisziplinären Grossprojekten bis zu kleinen «Eine-Person-Projekten» bietet Locher Ingenieure das ideale Umfeld.” Source: RevenueBase Database · checked Sep 17, 2026
5	DSP Ingenieure & Planer AG	Indirect evidence	Uster, SwitzerlandHQ checked Sep 17, 2026	51-200	66 contacts →
	Indirect evidence “dsp Ingenieure & Planer AG ist seit 1985 als unabhängiges Ingenieur- und Planungsunternehmen in der Bauwirtschaft erfolgreich in der ganzen Schweiz und im Bereich der…” Source: RevenueBase Database · checked Sep 17, 2026
6	Project Partners LTD Consulting Engineers	Partial evidence	Lugano, SwitzerlandHQ checked Sep 17, 2026	51-200	54 contacts →
	Partial evidence “Project Partners Ltd Consulting Engineers is an engineering firm, with headquarter in Lugano-Switzerland, specialized in the construction and strategic consultancy of large works…” Source: RevenueBase Database · checked Sep 17, 2026
7	Mawi Group SA	Indirect evidence	Bellinzona, SwitzerlandHQ checked Sep 17, 2026	51-200	53 contacts →
	Indirect evidence “con 140 collaboratori è attiva in diversi ambiti dell'ingegneria, tra cui ingegneria civile, restauro di monumenti storici, geologia, impiantistica, fisica della costruzione…” Source: RevenueBase Database · checked Sep 17, 2026
8	ILF Consulting Engineers In Switzerland	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 17, 2026	51-200	37 contacts →
	Indirect evidence “Die ILF Schweiz ist ein Ingenieur- und Beratungsunternehmen und Teil der international tätigen ILF-Holding.” Source: RevenueBase Database · checked Sep 17, 2026
9	Edms SA	Indirect evidence	Petit Lancy 1, SwitzerlandHQ checked Sep 17, 2026	11-50	35 contacts →
	Indirect evidence “edms SA est un bureau d'ingénieurs pluridisciplinaire dans le domaine de la construction.” Source: RevenueBase Database · checked Sep 17, 2026
10	Henauer Gugler AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 17, 2026	51-200	31 contacts →
	Indirect evidence “1922 von Ernst Rathgeb gegründet, hat unser Unternehmen bereits in frühen Jahren an wichtigen Bauwerken wie z.B.” Source: RevenueBase Database · checked Sep 17, 2026
11	BISA	Indirect evidence	Sierre, SwitzerlandHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Notre bureau est une société d'ingénieurs spécialisés dans les principaux domaines de l'ingénierie civile, ce qui lui permet de résoudre les problèmes complexes liés à l'étude et…” Source: RevenueBase Database · checked Sep 17, 2026
12	B S Ingenieurs SA	Indirect evidence	Genève, SwitzerlandHQ checked Sep 17, 2026	11-50	27 contacts →
	Indirect evidence “B+S INGENIEURS SA est composé de 37 collaborateurs bénéficiant de compétences élargies dans les domaines de l’ingénierie structurale (structures porteuses et ouvrages d’art), du…” Source: RevenueBase Database · checked Sep 17, 2026
13	Flückiger Bosshard AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 17, 2026	51-200	27 contacts →
	Indirect evidence “Die Tradition der Flückiger + Bosshard AG, als Teil einer innovativen, leistungsstarken und unabhängigen Ingenieurgruppe im Ingenieurbau reicht zurück bis ins Jahr 1964.” Source: RevenueBase Database · checked Sep 17, 2026
14	Mauler SA	Indirect evidence	Neuchâtel, SwitzerlandHQ checked Sep 17, 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 17, 2026
15	ZS Ingénieurs Civils	Indirect evidence	Petit Lancy, SwitzerlandHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect evidence “Depuis 1969, le bureau zs ingénieurs civils est spécialisé dans la conception et réalisation de projets d’ingénierie civile.” Source: RevenueBase Database · checked Sep 17, 2026
16	Synaxis Ag, Zurich	Indirect evidence	8050 Zürich, SwitzerlandHQ checked Sep 17, 2026	51-200	24 contacts →
	Indirect evidence “Die Synaxis AG plant und realisiert anspruchsvolle Projekte im Hochbau, Brückenbau und Infrastrukturbau, in der Bauwerkserhaltung sowie in Grundbau und Geotechnik.” Source: RevenueBase Database · checked Sep 17, 2026
17	Theiler Ingenieure AG	Indirect evidence	Thun, SwitzerlandHQ checked Sep 17, 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 17, 2026
18	C S Ingenieure AG	Indirect evidence	Hasle B.b., SwitzerlandHQ checked Sep 17, 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 17, 2026
19	Steinmann Ingenieure UND Planer AG	Indirect evidence	Brugg, SwitzerlandHQ checked Sep 17, 2026	51-200	21 contacts →
	Indirect evidence “Die Steinmann Ingenieure und Planer AG mit Sitz in Brugg, Baden, Aarau und Muri ist Teil der Steinmann Group mit mehr als 90 Fachkräften und einem breit abgestützten Knowhow in…” Source: RevenueBase Database · checked Sep 17, 2026
20	LE Collectif SA	Indirect evidence	Carouge, SwitzerlandHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Le Collectif SA propose des services dans le domaine du génie civil et de l'ingénierie des structures.” Source: RevenueBase Database · checked Sep 17, 2026
21	Filippini & Partner Ingegneria SA	Indirect evidence	Biasca, SwitzerlandHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “Filippini & Partner Ingegneria SA è una società indipendente di ingegneria, fondata nel 1972 a Biasca (Ct.” Source: RevenueBase Database · checked Sep 17, 2026
22	Ingenieurbureau Heierli AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “Das Ingenieurbureau Heierli wurde 1957 in Zürich gegründet.” Source: RevenueBase Database · checked Sep 17, 2026
23	Perret-Gentil SA	Indirect evidence	Yverdon-les-bains, SwitzerlandHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “Notre mission est de fournir des prestations d’ingénieurs civils pour conseiller et accompagner un Maître de l’ouvrage dans la conception et la réalisation de ses objectifs, de…” Source: RevenueBase Database · checked Sep 17, 2026
24	HKP Bauingenieure AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “Die HKP Bauingenieure AG ist eine Tochter der Emch+Berger AG Bern und ein Unternehmen der 1953 gegründeten Emch+Berger Gruppe.” Source: RevenueBase Database · checked Sep 17, 2026
25	Blesshess	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “Anspruchsvolle Bauwerke sind unser Antrieb.” Source: RevenueBase Database · checked Sep 17, 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: port 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 port engineering firms.
Partial evidence: Its own public description names part of port engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name port 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 169 port engineering firms based in Switzerland

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Port engineering firms based in Switzerland at a glance

As of Sep 17, 2026

47.8%Verified-email coverage

17.5Average contacts per company

11-50Median size (employees)

10.7%Largest-city concentration · Zurich

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

5,001-10,000

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 169 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 port 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 “port 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 port 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 port 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, 1,418 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 17, 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 port 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 port engineering firms are there based in Switzerland?

RevenueBase identified 169 port 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 port engineering firms?

Zurich leads with 18 headquartered companies, followed by Lausanne (7) and Lugano (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 1,418 verified decision-maker contacts tracked across these 169 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 17, 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.