Company lists · Data verified August 2026

Top 25 Enterprise IT consulting firms based in Switzerland

Name: Enterprise IT 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 1,191 companies tracked

There are 1,191 enterprise IT consulting firms headquartered in Switzerland (RevenueBase, August 2026). RevenueBase tracks 12,698 professional contacts across them, including 5,317 with verified work emails and 381 with mobile numbers. Zurich is the largest hub.

This list covers enterprise IT 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.

1,191Companies

12,698Contacts tracked

5,317Verified emails

381Mobile numbers

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The 25 largest enterprise IT consulting firms based in Switzerland

Ranked by team size

Top 25 of 1,191 enterprise IT 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	Billennium	Rotkreuz	1,001-5,000	1,288	881
2	API SA	Lausanne	n/a	667	38
3	Adesso Schweiz AG	St. Gallen	501-1,000	433	269
4	Solvia Digital Solutions	Zurich	201-500	394	203
5	Orbis SE	Baar	501-1,000	368	245
6	ITS Group S.A	Carouge	1,001-5,000	345	136
7	Isolutions AG	Basel	201-500	303	157
8	Sits Group	Basel	501-1,000	268	34
9	IPT Innovation Process Technology	Zurich	201-500	226	149
10	Yucca Scalian Group Yucca IT Solutions	Vevey	201-500	219	74
11	Amaris Consulting	Geneva	5,001-10,000	213	55
12	Netcloud ICT Professionals	Basel	201-500	197	154
13	DINA	Morges	201-500	154	82
14	Akros AG	Worblaufen	51-200	145	84
15	Document IT LLC	Reinach	201-500	139	1
16	Abylle Solutions Private Limited	Olten	51-200	85	23
17	Audaxis	Chatel Saint Denis	201-500	84	8
18	PCG International	Baar	51-200	83	52
19	Vanadys	Wollerau Wollerau	51-200	76	13
20	KIDAN	Allaman	51-200	71	47
21	Alpineo Consulting	Vernier	51-200	70	15
22	Infokrafts	Zurich	51-200	65	36
23	First Frame Networkers AG	Rothrist	51-200	57	43
24	Dplan AG	Solothurn	51-200	57	28
25	Arcplace AG	Zurich	51-200	53	37

Showing 25 of 1,191 enterprise IT consulting firms based in Switzerland

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Enterprise IT consulting firms based in Switzerland at a glance

As of Aug 28, 2026

1-10Median size (employees)

ZurichLargest hub · 114 HQs

381Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

837

11-50

246

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Enterprise IT consulting firms by metro

Metro	Companies
Enterprise IT consulting firms in Zurich	114
Enterprise IT consulting firms in Basel	41
Enterprise IT consulting firms in Bern	38
Enterprise IT consulting firms in Zug	34
Enterprise IT consulting firms in Lausanne	30
Enterprise IT consulting firms in Geneve	30
Enterprise IT consulting firms in Baar	25

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 “enterprise IT 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; 0 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 enterprise IT consulting firms are there based in Switzerland?

There are 1,191 enterprise IT consulting firms headquartered in Switzerland as of August 2026 (RevenueBase).

What is the largest company on this list?

Billennium, headquartered in Rotkreuz, tops this list with the largest team on record.

Which city has the most enterprise IT consulting firms?

Zurich leads with 114 headquartered companies, followed by Basel (41) and Bern (38).

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 5,317 verified decision-maker contacts tracked across these 1,191 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.