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Alexandre Hêche, architecte et urbaniste indépendant 

Châtelaine · Since 2021

The company's core activity is architecture and urban planning.

Amelias Sàrl 

Châtelaine · Since 2022

Amelias Sàrl serves Peruvian cuisine, featuring dishes such as ceviche, causa and arroz chaufa on its menu. The company provides restaurant service as well as catering, takeaway, delivery and private‑chef (chef at home) options.

Ametry Sàrl 

Châtelaine · Since 2023

Ametry Sàrl is an investment management firm specialising in absolute return strategies, including global macro and equity long/short, within a cross-asset framework. The firm employs proprietary macroeconomic models based on historical demographic data and provides investment advisory and portfolio management services.

A.RDC.DIESEL SA 

Châtelaine · Since 2006

argenx Switzerland SA 

Châtelaine · Since 2020

argenx Switzerland SA is a biopharmaceutical company that discovers, develops and commercializes antibody-based therapies for severe autoimmune diseases. Its portfolio includes the FcRn-targeting agent efgartigimod (marketed as VYVGART and VYVGART Hytrulo), a pipeline of additional antibody candidates such as empasiprubart, and ongoing clinical research.

ARK-Services SA 

Châtelaine · Since 2016

The core activity of ARK-Services SA is in the real estate sector, specifically in: * Acquisition (purchase) of properties * Management of properties * Rental of properties * Sale of properties The company thus offers comprehensive services in the field of real estate economics.

A.S.P.G.A., Association des services privés genevois d'ambulances 

Châtelaine · Since 1972

The company's core activity is the provision of emergency and rescue services, including the provision of ambulance vehicles and qualified personnel for the transportation and care of patients in emergency situations.

Association Initiative Assurance Qualité Humanitaire 

Châtelaine · Since 2016

The core activity of HQAI is to conduct independent audits and certifications for humanitarian and development organizations to improve the quality and accountability of their work. HQAI offers services such as benchmarking, independent verification, bridge audits and internal auditor training to support organizations in improving their processes and control mechanisms and increasing the effectiveness of their work.

Association Internationale des Tunnels et de l'Espace Souterrain 

Châtelaine · Since 2018

Association Nouvel Horizon 

Châtelaine · Since 2001

Association Nouvel Horizon offers Arabic language courses for all levels and organises cultural and social activities related to Arab‑Muslim culture. The association runs children’s and adult courses, workshops (theatre, cooking), after‑school care, holiday camps, community projects and provides legal advice sessions.