Company lists · Data refreshed September 2026

Top 23 IT outsourcing companies based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 151 companies tracked

RevenueBase identified 151 IT outsourcing companies headquartered in Switzerland as of September 2026 and tracks 3,320 professional contacts across them, including 1,474 with verified work emails and 139 with mobile numbers. Zurich is the largest hub.

This list covers IT outsourcing 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

151Companies

3,320Contacts tracked

1,474Verified emails

139Mobile numbers

Unlock all 151 companies Free signup · no credit card · 500 free credits

The 23 largest IT outsourcing companies based in Switzerland

Ranked by team size

Top 23 of 151 IT outsourcing companies based in Switzerland, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT outsourcing companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	API SAIndirect evidence	Lausanne 10, SwitzerlandHQ checked Sep 4, 2026	n/a	667
	“Fondée en 1990 par Maxime Borros, chairman, et actuellement dirigé par Nathanel Borros, CEO et 2ème génération, API est une entreprise de services et solutions informatiques.” Source: company website · checked Sep 4, 2026
2	DBI ServicesPartial evidence	Delémont, SwitzerlandHQ checked Sep 4, 2026	51-200	102
	“Founded in 2010, the IT services company dbi services is now a leader in the management of information systems with its team of experienced specialists.” Source: company website · checked Sep 4, 2026
3	Dplan AGPartial evidence	Solothurn, SwitzerlandHQ checked Sep 4, 2026	51-200	57
	“Die dplan AG ist ein etabliertes IT Beratungs- und Systemhaus für ganzheitliche IT Lösungen im Bereich Service & Support Ihrer IT Infrastruktur.” Source: company website · checked Sep 4, 2026
4	Allgeier Schweiz AGIndirect evidence	Thalwil, SwitzerlandHQ checked Sep 4, 2026	51-200	49
	“Empowering You Mit Leidenschaft, Wissen und Technologie ermöglichen wir es, Menschen und Organisationen, ihre Arbeitswelt und Prozesse zu verbessern und sich weiter zu entwickeln…” Source: company website · checked Sep 4, 2026
5	Econis AGStrong evidence	Dietikon, SwitzerlandHQ checked Sep 4, 2026	51-200	45
	“IT Consulting - IT Services - IT Outsourcing - IT Consulting - IT Services - IT Outsourcing- IT Consulting - IT Services - IT Outsourcing- IT Consulting - IT Services - IT…” Source: company website · checked Sep 4, 2026
6	Softec AGPartial evidence	Steinhausen, SwitzerlandHQ checked Sep 4, 2026	11-50	44
	“Software- und IT-Dienstleistungen die sofort Wirkung zeigen!” Source: company website · checked Sep 4, 2026
7	Data Conversion Service SAIndirect evidence	Petit-Lancy, SwitzerlandHQ checked Sep 4, 2026	51-200	40
	“Data Conversion Service SA, referred to henceforth as “DCS” is a service company based in Geneva, Switzerland, since 1973.” Source: company website · checked Sep 4, 2026
8	Overdata SaglPartial evidence	Chiasso, SwitzerlandHQ checked Sep 4, 2026	51-200	37
	“Overdata è una società di information Technology con sede a Chiasso che eroga servizi in ambito di consulenza IT e Business Process Management, offrendo le proprie competenze per…” Source: company website · checked Sep 4, 2026
9	groupe.idIndirect evidence	La Chaux-De-Fonds, SwitzerlandHQ checked Sep 4, 2026	11-50	37
	“Votre partenaire Informatique pour l'excellence opérationnelle!” Source: company website · checked Sep 4, 2026
10	IMS Informatik UND Management Service AGIndirect evidence	Ittigen, SwitzerlandHQ checked Sep 4, 2026	11-50	31
	“Ihr Partner für individuelle Informatiklösungen Als führendes Individualsoftwareunternehmen in der Region Bern sind wir bestrebt, komplexe Problemstellungen mit Hilfe modernster…” Source: company website · checked Sep 4, 2026
11	4it SolutionsIndirect evidence	Gravesano, SwitzerlandHQ checked Sep 4, 2026	11-50	31
	“Dal 2008 forniamo soluzioni informatiche di alto profilo ad aziende del settore pubblico e privato del territorio, affermandoci come uno dei principali partner tecnologici in…” Source: company website · checked Sep 4, 2026
12	Evok - Altern8 SAStrong evidence	Fribourg, SwitzerlandHQ checked Sep 4, 2026	11-50	29
	“Founded in 1998, EVOK developed over the years competencies and specializations in various activities like network security, system maintenance, IT outsourcing or ERP integration…” Source: company website · checked Sep 4, 2026
13	Netsafe AGIndirect evidence	St. Gallen, SwitzerlandHQ checked Sep 4, 2026	11-50	27
	“We are an innovative Information, Technology and Services company located in St.” Source: company website · checked Sep 4, 2026
14	Xware GmbhPartial evidence	Sursee, SwitzerlandHQ checked Sep 4, 2026	11-50	22
	“Effiziente Wege, dynamisches Handeln: Uns Mitarbeiter von XWare verbindet die Leidenschaft für IT-Lösungen, die die Geschäftsprozesse unserer Kunden tatsächlich verbessern.” Source: company website · checked Sep 4, 2026
15	Aark Tech Solutions GmbhIndirect evidence	Regensdorf, SwitzerlandHQ checked Sep 4, 2026	11-50	18
	“AarkTech specializes in Software Development and Consulting Services across the industries.” Source: company website · checked Sep 4, 2026
16	BWO Systems AGPartial evidence	SwitzerlandHQ checked Sep 4, 2026	51-200	17
	“IT-Services mit individuellen Lösungen Starke Unternehmen brauchen eine starke IT-Generalunternehmung.” Source: company website · checked Sep 4, 2026
17	Irix Software Engineering AGIndirect evidence	Basel, SwitzerlandHQ checked Sep 4, 2026	11-50	17
	“Welcome to iRIX Software Engineering AG!” Source: company website · checked Sep 4, 2026
18	A E Informatik GmbhPartial evidence	Winterthur, SwitzerlandHQ checked Sep 4, 2026	11-50	15
	“IT-Service mit Professionalität Die A+E Informatik GmbH bietet Ihnen zuverlässigen IT-Service von der neutralen Beratung, Konzeption und fachkundigen Implementierung bis zum…” Source: company website · checked Sep 4, 2026
19	Best Vision GroupPartial evidence	Lugano, SwitzerlandHQ checked Sep 4, 2026	201-500	14
	“Best Vision Group è un gruppo internazionale che opera nella produzione di soluzioni software innovative, nella fornitura di servizi di outsourcing e di consulenza, costituita da…” Source: company website · checked Sep 4, 2026
20	Reber Informatik Engineering GmbhPartial evidence	Munsingen, SwitzerlandHQ checked Sep 4, 2026	11-50	13
	“From specification and software development to implementation and maintenance, we work on your IT projects with great competence and passion.” Source: company website · checked Sep 4, 2026
21	Cogify AGPartial evidence	Root, SwitzerlandHQ checked Sep 4, 2026	11-50	13
	“From ideation, through consulting, to implementation and maintenance of your IT solutions.” Source: company website · checked Sep 4, 2026
22	PsideoPartial evidence	Plan-les-ouates, SwitzerlandHQ checked Sep 4, 2026	11-50	13
	“Based in Geneva (HQ) and Singapore, operating in more than 30 countries, PSiDEO provides a wide range of premium outsourced IT services to global customers, as well as the…” Source: company website · checked Sep 4, 2026
23	AppositePartial evidence	Ecublens, SwitzerlandHQ checked Sep 4, 2026	11-50	12
	“SERVICES IT Les compétences sont les outils, mais leur véritable pouvoir se révèle dans un partenariat intelligent.🧠 Apposite s’est pensé, non pas comme un prestataire, mais comme…” Source: company website · checked Sep 4, 2026

Showing 23 of 151 IT outsourcing companies based in Switzerland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,474 reachable decision-makers.

Free signup · no credit card

See all 151 companies

IT outsourcing companies based in Switzerland at a glance

As of Sep 4, 2026

11-50Median size (employees)

ZurichLargest hub · 11 HQs

139Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Verified emails by last verification

0–30

31–60

115

61–90

793

90–180

506

180+

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 IT outsourcing companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Switzerland whose own description of what they do matches “IT outsourcing companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among IT outsourcing 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 an evidence 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, 1,474 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 4, 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

How many IT outsourcing companies are there based in Switzerland?

RevenueBase identified 151 IT outsourcing 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?

API SA, headquartered in Lausanne, tops this list with the largest team on record.

Which city has the most IT outsourcing companies?

Zurich leads with 11 headquartered companies, followed by Bern (4) and Geneve (4).

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 1,474 verified decision-maker contacts tracked across these 151 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 4, 2026.

Ready to reach these companies? Verified emails and direct dials for all 151 IT outsourcing companies based in Switzerland. Start with a free account, no credit card.

Get the full list

Related lists

IT outsourcing companies by geography

Browse the directory

Browse: Companies home · All Switzerland lists · All IT outsourcing companies lists · New lists

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 SmartSearch, 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.