Holding Companies in
Plan-Les-Ouates

PATEK PHILIPPE HOLDING SA

Since 2013 · 101–500 empl.·4.9(10)

PATEK PHILIPPE HOLDING SA designs, develops and manufactures mechanical wristwatches, movements and jewellery timepieces, and provides related services including maintenance, repair and the issuance of archival extracts.

Sigma Group Holding SA

Since 2018 · 1–10 empl.·4.4(55)

Sigma Group Holding SA is a recruitment and staffing firm that connects employers and candidates. The company provides permanent recruitment, temporary staffing, sector-focused recruiting services and an online job listing platform.

Swissroc Group Services SA

Since 2019 · 1–10 empl.·4.0(87)

Swissroc Group Services SA is a real estate group offering integrated services across the property value chain, including investment, asset management, development, architecture, construction, property brokerage and building intelligence.

Dosim Holding SA

Since 2007 · 11–20 empl.·3.8(9)

Dosim Holding SA provides facility services, including support services such as cleaning, reception, mail services, meeting-room preparation, internal moves, indoor plant care and print & copy services. Its offering also covers property services—concierge, minor maintenance, technical building operations, green-space maintenance, waste management, pest control and winter services—and specific cleaning and hotel-type services for healthcare environments.

Frédérique Constant Holding SA

Since 2016 · 1–10 empl.·4.0(202)

Frédérique Constant Holding SA is a watch company that designs, manufactures and sells mechanical and quartz wristwatches. It produces in‑house calibers at its manufacture in Plan‑les‑Ouates, markets collections such as Classic, Highlife and Manufacture, and provides after‑sales services including warranty activation and authorized service centers.

Addex Therapeutics Ltd

Since 2007 · 11–20 empl.

The core activity of Addex Therapeutics is the development and marketing of allosteric modulators, a new class of orally available small molecules, for the treatment of neurological disorders.

EXLTERRA SA

Since 2017 · 11–20 empl.

EXLTERRA SA develops and supplies energy‑passive soil remediation technologies and specialized drilling rigs, including the GEPS, NEPS and NSPS product lines. Its modular polyethylene units operate underground without external power and are used for stormwater infiltration and groundwater recharge, nutrient enrichment, soil stabilization and in‑situ chemical or radioactive decontamination.

KEP Technologies International SA

Since 2017 · 1–10 empl.

KEP Technologies International SA designs and implements industrial and technological solutions, providing engineering, innovation and project management services. The company operates the brands SETARAM (material characterization), SETSMART (industrial control) and SETSAFE (radioactivity measurement) and serves markets including aeronautics and space, security and defense, health and research, energy and transport.

Swissroc Capital Holding SA

Since 2017 · 11–20 empl.

Swissroc Capital Holding SA is a real estate group offering services across the property value chain, including investment and asset management, development, architecture, construction and property services (including building intelligence and energy-related services).

Epithelix-Holding Sàrl

Since 2019 · 1–10 empl.

Epithelix-Holding Sàrl is a company offering in vitro respiratory solutions, including reconstituted human airway tissues and related products and testing services. Offerings include MucilAir™, SmallAir™ and AlveolAir™ tissue models, assays for viral and bacterial infections, nasal spray evaluation and inhalation toxicity testing.

L'Occitane International (Suisse) SA

Since 2022 · 1–10 empl.

L'Occitane International (Suisse) SA develops and markets cosmetics and personal care products as part of the L'OCCITANE Group. The company manages a portfolio of beauty brands and distributes their products through brand channels and retail.

DUNOYER HOLDING SA

Since 2014 · 1–10 empl.

DUNOYER HOLDING SA is a holding company within the DUNOYER group. The website points to the group’s activities in construction and real estate, as well as the related companies and projects.