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Synerio SA 

Petit-Lancy · Since 2023

Synerio is an IT service provider specializing in consulting, development, and integration of Microsoft solutions, particularly in the areas of Digital Workplace (SharePoint, Teams, O365) and infrastructure (Azure). The core activities include the conception, implementation, and maintenance of IT systems, networks, and servers for customers, as well as consulting and implementation of projects for migrating applications and certifications to the cloud (Azure).

TB Center Sàrl 

Petit-Lancy · Since 2024

TB Center Sàrl is a food service establishment offering tacos, burgers, smash, bowls, salads, Tex‑Mex dishes, sides and desserts. The business lists menu options and enables online ordering via a third‑party platform.

Td rénovation Sàrl 

Petit-Lancy · Since 2023

The core activity of TD Renovation is the execution of work in the field of building renovation and restoration, particularly: facade renovation, building insulation and envelope, specialized plastering, curative treatment of concrete carbonation, cleaning, hydroblasting and maintenance of facades, interior and exterior painting, and special works (such as expansion joints, sealant resin, coring, and masonry). The company places great emphasis on preserving the historical character of buildings and therefore works with specialized techniques and materials.

Techfina SA 

Petit-Lancy · Since 1957

Techfina SA designs and constructs turnkey plants for drinking water treatment and wastewater treatment. Services include engineering, 3D planning, supply and installation of key components, commissioning and testing, and operational support, as well as sludge treatment, removal of micropollutants, phosphorus recovery and energy recovery.

TECTON Toitures SA, Succursale de Lancy 

Petit-Lancy · Since 2021

TECTON Toitures SA, Succursale de Lancy provides customer service, flat-roof installation and repair, renovation work, sheet-metal roofing and roof greening services.

TELEACTIS TELEPRO SA 

Petit-Lancy · Since 2002

The core activity of Teleactis is to provide customer service and customer communication services, particularly through the operation of call centers and the implementation of prospecting and sales activities. This includes, among other things: * Handling customer inquiries and complaints * Conducting sales and prospecting conversations * Creating and managing customer leads * Providing after-sales service * Analyzing and optimizing customer communication processes Teleactis positions itself as a Swiss company with local teams in Geneva and Bern, offering its services primarily to companies in the media, services, and consumer goods sectors.

Telix Pharmaceuticals (Switzerland) Sàrl 

Petit-Lancy · Since 1999

The core activity of Telix Pharmaceuticals is the development and manufacture of biopharmaceutical products, in particular targeted radiation products for the diagnosis and treatment of cancer and rare diseases.

The Staf Sàrl 

Petit-Lancy · Since 2018

The company "The Staf Hairdresser" provides high-quality hairdressing services, including haircuts, coloring and straightening, in a salon located within international companies.

The WIT International Services SA 

Petit-Lancy · Since 2009

The company 'The Wit' offers a range of services and products specializing in providing information and analysis on TV and digital content. The core activity of the company is to supply producers, broadcasters, distributors, and advertisers worldwide with information on TV and digital content, trends, and developments. This includes: Creating and distributing daily newsletters and reports on new TV and digital shows; Operating a proprietary database containing information on TV and digital content, including descriptions, videos, and ratings; Conducting market research and analysis to identify trends and developments in the TV and digital sector; Providing tools and services to support customers in searching, evaluating, and acquiring TV and digital content. Overall, the core activity of the company can be described as 'information and analysis service provider for the TV and digital media industry'.

TPF SA 

Petit-Lancy · Since 2022

Trafitec Ingénieurs Conseils SA 

Petit-Lancy · Since 1988

Trafitec Ingénieurs Conseils SA is an engineering firm specializing in transport and mobility. The company provides network planning and public-space design, traffic management, parking studies, and consultancy on public transport, construction site coordination and impact assessments.

Videlio (Suisse) SA 

Petit-Lancy · Since 1999

The core activity of Videlio is the integration of audiovisual solutions and services for various markets and industries, including the design, installation, maintenance and support of audiovisual systems, as well as the creation of innovative work environments (Workplace) through the integration of technologies, communication and collaboration solutions.

Vincent Du Bois sculpteur 

Petit-Lancy · Since 1999

The company's core activity is the creation of artworks, particularly sculptures, by the artist Vincent Du Bois. The company also offers services such as art lessons and consulting on the use of stone as a material.

Viridis environnement Sàrl 

Petit-Lancy · Since 2001

The core activity of Viridis Environnement is to provide services in the field of environmental planning and consulting, particularly in the areas of: environmental studies and assessments, urban planning and development, renaturation and nature conservation, agriculture and forestry, hydrogeology, agronomy, forestry and geophysics. The company supports its clients, including public institutions, companies and private individuals, in planning and implementing projects that affect the environment and quality of life.

WasteOlas Sàrl 

Petit-Lancy · Since 2022

The core activity of WasteOlas is the development and implementation of systems for capturing and recycling CO2 emissions, particularly in the brewing industry. The company offers solutions to reduce, recycle and convert CO2 emissions into valuable resources, thereby supporting breweries in achieving their sustainability goals.

W&W, Waste&Watt Sàrl 

Petit-Lancy · Since 2018

The company W&W (Waste & Watt) offers solutions for sustainable development, particularly in the areas of energy efficiency and waste management. The core activities include: energy audits and optimization for companies and municipalities, development of strategies for reducing energy consumption and waste, implementation of measures to increase energy efficiency and promote renewable energies, and consulting and support for the implementation of sustainable solutions for companies, municipalities, and private individuals. W&W's core activities focus on supporting companies and municipalities in implementing the 2050 strategy and reducing their ecological footprint.

Zensar Technologies (UK) Limited, Londres, succursale de Lancy/Genève 

Petit-Lancy · Since 2014

The company offers services in the field of digital transformation and IT consulting. The core activities include: * Development and implementation of artificial intelligence (AI) and machine learning (ML) * Consulting and implementation of digital strategies and solutions for companies * Development and operation of cloud infrastructures and applications * Security services for companies * Consulting and implementation of digital workplaces and infrastructures * Development and implementation of applications and solutions for various industries such as financial services, healthcare, telecommunications and more. The company also offers specific services for various technologies and platforms such as Oracle, Salesforce, SAP, Google Cloud, AWS and Microsoft Azure.

ZIG Services Sàrl 

Petit-Lancy · Since 2023

ZIG Services Sàrl provides moving, cleaning and renovation services. Its offerings include social, private and corporate moves; commercial and domestic cleaning, post-construction and end-of-lease cleaning and decluttering; as well as painting, tiling and parquet work.

3S Conseils Sàrl 

Petit-Lancy · Since 2025

3S Conseils Sàrl is a consulting firm that advises individuals on tax, social‑security and administrative matters, with a focus on cross‑border issues between France and Switzerland. Services include tax declarations, guidance on URSSAF/CNTFS and social contributions, support for LMNP and real‑estate declarations, financial advice and tax optimisation.

CroisSens RH SARL 

Petit-Lancy · Since 2025

CroisSens RH SARL is a human resources consulting firm that supports organisations in talent assessment and development. Its services include predictive potential evaluations (assessment centres, psychometric tools, 360° feedback), coaching, training and onboarding, and career management and mobility services including outplacement.