Technical Consulting & Engineering in the
Canton of Geneva

CLIM DIFFUSION SERVICE Sàrl

Since 2017 · 1–10 empl.·4.9(12)

CLIM DIFFUSION SERVICE Sàrl is a distributor of components and systems for air conditioning, heat pumps, refrigeration and ventilation. The company supplies air‑conditioning units, heat pump systems, refrigeration and humidification equipment, circulation pumps and related accessories for residential, commercial and industrial applications.

Conti & Associés Ingénieurs SA

Since 1988 · 21–50 empl.·4.1(7)

Conti & Associés Ingénieurs SA is an engineering consultancy providing energy planning and building services engineering, including heating, ventilation & refrigeration, sanitary systems, electrical installations and control/regulation. Services include audits, energy concepts, technical studies, sizing and tender documentation, as well as project support and system optimization.

LAYDEVANT SA

Since 1989 · 21–50 empl.·5.0(4)

LAYDEVANT SA is an electrical contracting company that carries out electrical installations, telecom and home-automation (low-voltage) systems, and the production and automation of doors and gates. Its services include consulting, technical studies, installation, conversions and maintenance for industrial, commercial and private clients.

DomotiConcept Sàrl

Since 2016 · 11–20 empl.·5.0(8)

DomotiConcept Sàrl provides integration and programming services for home automation (domotics) systems. The company conducts project studies and technical design, integrates and configures systems (e.g. KNX, Loxone, Zigbee/Z‑Wave/Wi‑Fi) and delivers alarm and video surveillance, home cinema, lighting and solar shading, intelligent thermostat control, intercoms, pool/wellness connectivity, energy management, plus commissioning, maintenance and user training.

EC SA

Since 1993 · 11–20 empl.·4.3(22)

The core activity of EC Electricité Genève is the provision of services and products in the field of electrical engineering, particularly in the installation, maintenance and repair of electrical systems and installations.

SAFELEC Sàrl

Since 2012 · 1–10 empl.·5.0(5)

The core activity of Safelec Sàrl is to carry out inspections and safety tests of electrical installations in Switzerland, particularly in the field of low-voltage installations, based on the Ordinance on Electrical Low-Voltage Installations (OIBT). This includes verifying compliance with safety standards, creating safety reports and supporting customers in meeting legal requirements.

Lombard Odier & Co Société en Commandite

Since 2016 · 11–20 empl.·4.7(3)

Lombard Odier & Co Société en Commandite is a private bank that provides wealth and asset management services. It offers tailored investment and wealth‑planning solutions for private and institutional clients and supplies banking technology and platform services to other financial institutions.

FEUER PRO TECH SA

Since 2022 · 1–10 empl.·5.0(18)

The core activity of Feuer Pro Tech is the planning and implementation of fire protection measures as well as thermal and sound insulation for buildings. The company offers certified solutions and services to ensure the safety of buildings, equipment and their occupants.

ZS Ingénieurs Civils SA

Since 1989 · 21–50 empl.·4.7(3)

ZS Ingénieurs Civils SA is a civil engineering firm that provides design and execution services for civil engineering projects. Its scope includes structural design and civil works as well as infrastructure projects such as roads, tram and rail lines, energy and distribution networks, sewage systems, river renaturation, renovations and project management.

MICALODEAL SA

Since 1996 · 1–10 empl.·5.0(4)

The core activity of Micalodeal SA is the safety of reservoirs, particularly in the installation, revision, cleaning, decommissioning, chemistry/large storage and repair of tanks for various liquids such as heating oil, gasoline, chemicals and others. The company also provides consulting services in the field of energy, particularly for heating systems, and supports customers in the selection and implementation of energy efficiency solutions.

Techfina SA

Since 1957 · 11–20 empl.

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.

Petroleum Technical Company SA

Since 1960 · 11–20 empl.

The company Petroleum Technical Company S.A. (PTC) is a provider of solutions for the field of fluid transfer and distribution. The company's core activity includes the design, development, and delivery of products and systems for the safe and efficient transfer of fluids in various industries, including chemicals, pharmaceuticals, agro-food, and energy. The company offers a wide range of products, including pumps, components, fittings, flexible hoses, pistols, safety equipment, and other accessories. PTC works with renowned manufacturers and also offers services such as consulting, installation, maintenance, and repair. The company's core activity can be summarized as follows: Design and delivery of systems for fluid transfer and distribution, offering products and components for the safe and efficient transfer of fluids, and providing services such as consulting, installation, maintenance, and repair of systems and products.

FORVIS MAZARS SA

Since 1975 · 101–500 empl.

FORVIS MAZARS SA provides audit, assurance, tax and advisory services, including outsourcing, financial advisory, consulting and sustainability services. The firm serves clients across sectors such as financial services, real estate, manufacturing and life sciences and also offers private client services.

Géotechnique appliquée Dériaz SA

Since 1975 · 11–20 empl.

Géotechnique appliquée Dériaz SA provides geotechnical and geological studies as well as hydrogeology and environmental investigation services. Its activities include site investigations and boreholes, laboratory testing, foundation and infrastructure design, in-situ monitoring and instrumentation, and construction supervision for geotechnical and underground works.

Geos Ingénieurs-Conseils SA

Since 1976 · 1–10 empl.

Geos Ingénieurs-Conseils SA is an engineering consultancy active in civil engineering, geotechnics, hydraulics, infrastructure and environmental services. The company provides services from preliminary studies and design to tendering, execution studies and site supervision, with particular activity in hydraulic works, structures and urban infrastructure.

Perreten & Milleret SA

Since 1978 · 11–20 empl.

Perreten & Milleret SA is an engineering firm specializing in the fields of construction, environment and geotechnics. The core activities include: Consulting and planning in the field of construction, including structures (concrete, steel, wood), buildings, civil engineering and railway engineering; Environmental consulting and planning; Geotechnical consulting and planning; Conseil Maître d'Ouvrage (CMO) - assuming tasks as a client representative; Specialized services such as earthquake-resistant buildings, concrete carbonation, material recycling, detection of hazardous materials, comprehensive audits and demolitions. The company offers its services throughout the entire project cycle, from the initial request to project realization.

DIETSMANN SA

Since 1978 · 11–20 empl.

Dietsmann is a provider of maintenance and repair solutions for industrial facilities, particularly in the energy and raw materials sectors. The company's core activity involves the development and implementation of innovative technologies and services to improve the planning, safety and efficiency of maintenance and repair work. This also includes comprehensive condition and emissions monitoring as well as the provision of advanced technologies to support these processes.

Rhône-Electra Engineering SA

Since 1978 · 1–10 empl.

The core activity of Rhône-Electra Engineering S.A. consists of providing engineering and consulting services for the conception and realization of electrical infrastructures. This includes in particular: Consulting and conception, studies and expert opinions, energy management and analysis, support in the selection of contractors, and monitoring of the execution of works. The company positions itself as a neutral partner for its customers and offers them comprehensive support in the planning and realization of their electrical infrastructures.

B+S ingénieurs SA

Since 1982 · 21–50 empl.

The core activity of B+S ingénieurs SA is engineering in the field of construction, particularly in the areas of structural engineering (load-bearing structures and civil engineering works), civil engineering (roads, development, pipelines and earthworks) as well as environmental technology and sustainable development. The company provides consulting and planning services for construction projects and is involved in various projects, such as the renovation of bridges, the construction of new buildings and the renovation of historic buildings.

MCM Management, Control and Maintenance SA

Since 1982 · 21–50 empl.

The core activity of MCM is the rental and management of special containers for the transport of liquid goods, in particular ISO tank containers, swap tanks and gas tanks. The company also offers a range of services such as maintenance, repair, insurance and logistics to support the transport of liquid goods.

Ney & Hurni SNC

Since 1984 · 1–10 empl.

Ney & Hurni SNC is a geomatics and surveying practice offering official and technical surveying services as well as spatial planning and environmental consulting. Its services include terrestrial and mobile LiDAR, drone photogrammetry, GIS/BIM data management, hydrology, metrology/monitoring and non‑destructive testing (NDT).

DURLEMANN ENERGIES SA

Since 1985 · 1–10 empl.

The core activity of Durlemann Energies is the installation, maintenance and repair of heating systems, including renewable energy systems such as pellet heating, photovoltaic systems and geothermal energy. The company also offers energy consulting, planning and services, including energy audits and optimization.

AAB - J. Stryjenski & H. Monti SA

Since 1985 · 1–10 empl.

The core activity of AAB - J.Stryjenski & H.Monti SA is to provide services in the field of acoustics and building physics. In particular, the company offers expertise, simulation services and consulting in the following areas: Acoustics: room acoustics, building acoustics, sound reinforcement and environmental acoustics; Building physics: building physics, expertise and simulation services. The company positions itself as a pioneer in these fields and offers its services in both Switzerland and France.

Amstein + Walthert Genève SA

Since 1986 · 51–100 empl.

Amstein + Walthert Genève SA is an engineering and consulting firm providing technical planning and advisory services for buildings and real estate. Its services include building services engineering (electrical, HVAC, plumbing), energy and climate concepts, facility management, coordination, sustainability and BIM/VDC services.

Trafitec Ingénieurs Conseils SA

Since 1988 · 1–10 empl.

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.

QMT Suisse SA

Since 1989 · 11–20 empl.

QMT Suisse SA designs and supplies customised test and quality-control systems, including automated visual inspection, high-precision dimensional measurement and electromechanical testing solutions. The company also provides industry-specific systems for watchmaking, medical, automotive and rail sectors, together with software, mechatronics and AI-based data processing.

Erte Ingénieurs Conseils SA

Since 1990 · 1–10 empl.

The core activity of ERTE Consulting Engineers AG is the planning, consulting and implementation of innovative energy concepts in the field of building technology, particularly in the areas of heating, ventilation, air conditioning, solar energy and earth-to-air heat exchangers. The company offers services from conception to maintenance and focuses on the development of environmentally friendly and efficient solutions for private and public construction projects.

COGEN Energies SA

Since 1991 · 11–20 empl.

Cogen Energies SA is an engineering firm specializing in the planning and implementation of energy efficiency and sustainability projects. The core activities include: energy planning, sustainable construction, heating, ventilation and air conditioning, sanitary engineering, electrical engineering, and control technology. The company offers services such as energy audits, planning and implementation of energy efficiency measures, as well as the development of sustainable solutions for the production and distribution of heat and cold.

Peak Partners Blue SA

Since 1991 · 1–10 empl.

Peak Partners Blue SA develops and supports solutions to conserve water and improve irrigation efficiency. The site states that the company supports Swiss firm Bultec SA in promoting the Pumpilo solar pump for off‑grid irrigation and is collaborating with the Japanese group EF Polymer on a biological hydro‑retaining product to reduce agricultural water use.

PSA - PERRIN, SPAETH & ASSOCIES - BUREAU D'INGENIEURS CONSEILS SA

Since 1992 · 11–20 empl.

PSA (Perrin, Spaeth & Associés) is an engineering firm specializing in the planning and development of complex and innovative electrical installations. The company's core activity is the creation of studies and projects in the field of electrical engineering, particularly in the areas of high voltage, low voltage and renewable energies. The company works closely with architects and builders to develop customized solutions for their projects.

Techniserv SA

Since 1993 · 1–10 empl.

The core activity of Techniserv is the provision of services and consulting in the field of cleanroom technology, particularly in the areas of cleanroom and laminar flow technology, decontamination and sterilization, laboratory instruments and equipment, and climate cabinets and systems. In addition, the company also offers measurement and testing services, such as particle counting, air velocity measurement and leak testing of HEPA filters, as well as consulting and certification in the field of quality management standards ISO 9001 and ISO/IEC 17025.

Helveos SA

Since 1993 · 1–10 empl.

Helveos SA is an engineering consultancy active in civil engineering, geotechnics, energy, water and hydraulic structures. The company plans and supports projects in these fields, including buildings, infrastructure, water supply, wastewater, energy systems, dams and flood protection works.

Schumacher & CHIngS Ingénieurs SA

Since 1994 · 11–20 empl.

Schumacher & CHIngS Ingénieurs SA is an engineering firm focused on building services engineering, including heating, ventilation, air conditioning, sanitation, electrical systems, building automation, and safety and security. The company provides consulting, interdisciplinary coordination, project management, expert assessments, audits, and client support services.

Vert Demain Sàrl - Spécialiste en Transition Energétique

Since 1995 · 11–20 empl.

The core activity of Vert'Demain Sàrl is consulting and implementing energy efficiency measures in the construction sector, particularly in the planning and realization of energy-efficient new buildings, renovations and optimizations of existing buildings, as well as the installation of heating systems, solar panels and insulation. The company also offers audit and consulting services in the field of energy efficiency.

SB technique SA

Since 1996 · 21–50 empl.

SB Technique SA is an engineering services provider specializing in the planning, development and implementation of energy-efficient solutions for buildings. The company's core activity encompasses the design and implementation of energy-efficient systems for heating, ventilation, air conditioning, plumbing and security systems, as well as consulting and supporting building owners and architects in the planning and implementation of energy-efficient buildings.

CGG International SA

Since 1997 · 1–10 empl.

CGG International SA is a technology and data company that provides Earth and geoscience-related solutions. Its activities focus on subsurface imaging, data services, high-performance computing, sensing and monitoring, and data products for sectors such as energy, carbon storage, mining and infrastructure.

Satel Services SA

Since 1997 · 1–10 empl.

The core activity of Satel Service SA is the sale and installation of entertainment electronics, particularly television sets, home cinema systems, audio and video equipment, as well as automation solutions for private households. The company also offers satellite installations, TV lift solutions, and THX calibrations. It distributes products from various brands such as Samsung, LG, Sony, Meridian, and others.

HEIMBERG & Cie SA

Since 1998 · 1–10 empl.

The core activity of HEIMBERG & Cie SA is the provision of services in the fields of geomatics and engineering, particularly in the following areas: surveying of conditions (e.g. buildings, vegetation, levels), creation of documents for building permits (e.g. plans, sections), monitoring of construction sites (e.g. implantation, level, motion control), cadastral work (e.g. cadastral surveying, boundary determination, parcel mutation, servitudes), geomatics (e.g. acquisition, processing and dissemination of geospatial data), and creation of ownership plans for co-ownership. The company thus offers a wide range of services in the fields of geomatics, engineering and cadastral surveying.