Company lists · Data refreshed September 2026

Top 25 Drug development service providers based in Switzerland

Name: Drug development service providers based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 182 companies tracked

RevenueBase identified 182 drug development service providers headquartered in Switzerland as of September 2026 and tracks 30,028 professional contacts across them, including 16,613 with verified work emails. Basel is the largest hub.

This list covers drug development service providers 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

182Companies

30,028Contacts tracked

16,613Verified emails

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The 25 largest drug development service providers based in Switzerland

Ranked by team size

Top 25 of 182 drug development service providers 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 drug development service providers: 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	LONZA	Indirect evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	10001+	16,290 contacts →
	Indirect evidence “Lonza is a pioneer and world leader in the CDMO industry, setting the pace with cutting-edge science, smart technology, and lean manufacturing.” Source: RevenueBase Database · checked Sep 19, 2026
2	PSI CRO	Indirect evidence	Zug, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	2,494 contacts →
	Indirect evidence “PSI is a leading full-service global Contract Research Organization whose key strength is predictable patient enrollment across multiple therapeutic areas.” Source: RevenueBase Database · checked Sep 19, 2026
3	Siegfried	Indirect evidence	Zofingen, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	1,913 contacts →
	Indirect evidence “Siegfried is a leading CDMO with 16 production sites on four continents.” Source: RevenueBase Database · checked Sep 19, 2026
4	Corden Pharma	Strong evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	1,616 contacts →
	Strong evidence “CordenPharma is your full-service partner in the Contract Development & Manufacturing (CDMO) of APIs, Lipid Excipients, Drug Products and Packaging.” Source: RevenueBase Database · checked Sep 19, 2026
5	Polypeptide Group	Partial evidence	Baar, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	1,301 contacts →
	Partial evidence “PolyPeptide Group AG and its consolidated subsidiaries (“PolyPeptide”) is a specialized Contract Development & Manufacturing Organization (CDMO) for peptide-based active…” Source: RevenueBase Database · checked Sep 19, 2026
6	Solvias	Indirect evidence	Kaiseraugst, SwitzerlandHQ checked Sep 19, 2026	501-1,000	683 contacts →
	Indirect evidence “Solvias helps innovative companies advance their path to commercialization with CMC analytical solutions powered by deep scientific expertise and a relentless focus on our…” Source: RevenueBase Database · checked Sep 19, 2026
7	Genedata	Indirect evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	201-500	386 contacts →
	Indirect evidence “Genedata transforms biopharma data into intelligence.” Source: RevenueBase Database · checked Sep 19, 2026
8	Celonic Group	Partial evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	201-500	309 contacts →
	Partial evidence “Celonic is a “Pure Play” Biologics Contract Development Manufacturing Organization (CDMO).” Source: RevenueBase Database · checked Sep 19, 2026
9	Accelsiors CRO	Indirect evidence	Baar, SwitzerlandHQ checked Sep 19, 2026	201-500	196 contacts →
	Indirect evidence “Accelsiors is an end-to-end clinical research organization that has empowered biopharmaceutical companies for over two decades.” Source: RevenueBase Database · checked Sep 19, 2026
10	KD Pharma Group	Indirect evidence	Bioggio, SwitzerlandHQ checked Sep 19, 2026	201-500	194 contacts →
	Indirect evidence “KD Pharma Group \| Creating Health Solutions The KD Pharma Group is a CDMO that develops products in the pharmaceutical and nutraceutical space.” Source: RevenueBase Database · checked Sep 19, 2026
11	Ten23 Health	Partial evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	51-200	192 contacts →
	Partial evidence “ten23 health is the human-centric and sustainable strategic partner of choice for the pharmaceutical industry and biotech start-ups for the development, manufacture, and testing…” Source: RevenueBase Database · checked Sep 19, 2026
12	Anapath Services Gmbh & Anapath Research S.A.U	Indirect evidence	Liestal, SwitzerlandHQ checked Sep 19, 2026	51-200	95 contacts →
	Indirect evidence “AnaPath, is a global company including contract research organization (CRO) and pathology services that provides R&D services in the preclinical and bioanalytical fields.” Source: RevenueBase Database · checked Sep 19, 2026
13	HAS Healthcare Advanced Synthesis SA	Indirect evidence	Biasca, SwitzerlandHQ checked Sep 19, 2026	201-500	93 contacts →
	Indirect evidence “HAS Healthcare Advanced Synthesis SA \| The HAS Group We are a leading full-service CDMO and the anchor of the HAS Group, uniting specialized entities like Cerbios-Pharma SA to…” Source: RevenueBase Database · checked Sep 19, 2026
14	Spirochem	Partial evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	51-200	77 contacts →
	Partial evidence “SpiroChem is a pioneering research partner providing innovative solutions across the drug discovery and process R&D chemistry value chain.” Source: RevenueBase Database · checked Sep 19, 2026
15	Excellgene SA	Partial evidence	Monthey, SwitzerlandHQ checked Sep 19, 2026	51-200	63 contacts →
	Partial evidence “Looking for a trusted partner in the development of cell lines and manufacturing processes?” Source: RevenueBase Database · checked Sep 19, 2026
16	Senn Chemicals AG	Indirect evidence	Dielsdorf, SwitzerlandHQ checked Sep 19, 2026	51-200	61 contacts →
	Indirect evidence “SENN has been in the peptide business since 1963.” Source: RevenueBase Database · checked Sep 19, 2026
17	Philochem AG	Indirect evidence	Otelfingen, SwitzerlandHQ checked Sep 19, 2026	11-50	49 contacts →
	Indirect evidence “Philochem is a fully owned daughter company of Philogen and represents the Discovery Unit of the Philogen group.” Source: RevenueBase Database · checked Sep 19, 2026
18	Retinai	Partial evidence	Bern, SwitzerlandHQ checked Sep 19, 2026	11-50	42 contacts →
	Partial evidence “RetinAI is a Swiss & US-based software company improving and supporting R&D of first-in-human drug candidates, supercharging management and oversight of clinical trials and…” Source: RevenueBase Database · checked Sep 19, 2026
19	Consultys Suisse	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 19, 2026	51-200	36 contacts →
	Indirect evidence “Empowering Life Sciences innovation for over 20 years.” Source: RevenueBase Database · checked Sep 19, 2026
20	Bacthera	Indirect evidence	SwitzerlandHQ checked Sep 19, 2026	51-200	34 contacts →
	Indirect evidence “We are a leading CDMO in the LBP industry, supporting our customers with microbiology know-how, process expertise and industry changing innovation From pre-clinical to…” Source: RevenueBase Database · checked Sep 19, 2026
21	Five Office LTD	Indirect evidence	Wetzikon (zürich), SwitzerlandHQ checked Sep 19, 2026	51-200	31 contacts →
	Indirect evidence “Five Office Ltd is a service provider based in Switzerland and operating worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
22	Unipharma SA	Indirect evidence	Lugano, SwitzerlandHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “Unipharma is a Swiss pharmaceutical service provider established in 1947 with long and strong heritage and unparalleled know-how in the distribution of medicines that are not…” Source: RevenueBase Database · checked Sep 19, 2026
23	Selexis SA	Indirect evidence	Plan-les-ouates, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	28 contacts →
	Indirect evidence “KBI Biopharma and Selexis SA are consolidating operations as one organization under the KBI Biopharma name.” Source: RevenueBase Database · checked Sep 19, 2026
24	Eumedica Pharmaceuticals AG	Indirect evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	11-50	24 contacts →
	Indirect evidence “At Eumedica we offer an extensive range of products and services, covering healthcare stakeholders' need, in three domains of expertise- Manufacturing Active Pharmaceutical…” Source: RevenueBase Database · checked Sep 19, 2026
25	HEMEX	Partial evidence	Liestal, SwitzerlandHQ checked Sep 19, 2026	11-50	23 contacts →
	Partial evidence “HEMEX is a European Contract Research Organization (CRO) supporting pharmaceutical, biotech, and medtech SMEs with end-to-end clinical development solutions.” 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: drug development service providers. 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 drug development service providers.
Partial evidence: Its own public description names part of drug development service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name drug development service providers. 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 182 drug development service providers based in Switzerland

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Drug development service providers based in Switzerland at a glance

As of Sep 19, 2026

55.3%Verified-email coverage

165.0Average contacts per company

1-10Median size (employees)

14.8%Largest-city concentration · Basel

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

113

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 182 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 drug development service providers, 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 “drug development service providers”. 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 drug development service providers), 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 drug development service providers, 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, 16,613 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.

Drug development service providers by metro

Drug development service providers in Basel27

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 drug development service providers, 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 drug development service providers are there based in Switzerland?

RevenueBase identified 182 drug development service providers 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?

LONZA, headquartered in Basel, tops this list with the largest team on record.

Which city has the most drug development service providers?

Basel leads with 27 headquartered companies, followed by Zurich (9) and Geneva (8).

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 16,613 verified decision-maker contacts tracked across these 182 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.