PARTNERS
GER SA partners are here to assist our clients on a large range of expertise

E.GEO Italia designs, sizes, installs and maintains geothermal systems, supporting its clients from the initial study through to completion. Committed to research and development since its founding, the company has refined its techniques by combining field experience, continuous monitoring of its installations and a constantly growing database.
Its 20-years experience enables the delivery of a complete technical and commercial feasibility study quickly, then to build the system, in both new construction and renovation projects. E.GEO Italia’s track record speaks for itself:
- 500 heat pump systems in operation
- 43 MW of installed capacity
- 103 GWh produced per year
- More than 406 km of vertical borehole heat exchangers and dozens of groundwater wells
- 23,000 tonnes of CO₂ emissions avoided per year, along with other pollutants such as fine particles and sulphur dioxide
In 2024, E.GEO Italia, GER SA and Planeto SA signed a commercial partnership agreement, forming the EGEO International alliance. By joining their complementary skills, the partners offer a one-stop solution for geothermal projects of every kind. This spans E.GEO’s design, installation and maintenance expertise, GER’s subsurface and geothermal know-how, and Planeto’s digital network design and optimisation tools. Clients deal with a single partner from resource assessment through to system delivery and operation. The alliance aims to bring E.GEO Italia’s proven excellence and experience to the international market, with a focus on Switzerland, France and the United Kingdom.
E.GEO Italia is part of the Veos Group, which strengthens its position in the energy transition arena. The group offers a broader range of technology solutions, including biomass, photovoltaics and the manufacture of innovative high-temperature heat pumps for residential and industrial use. The group also brings its own financing capabilities to support clients’ projects.

Planeto SA is a partner of GER SA within the EGEO International alliance and specialises in the digital planning and optimisation of thermal energy networks. Its tools and expertise help developers, municipalities and building owners design heating and cooling systems that are technically sound and economically viable from the earliest project stages.
Core capabilities:
- Network design and simulation. Planeto models and simulates thermal networks, including low-temperature and 5th-generation systems, to test layouts, operating conditions and performance before construction.
- Building demand forecasting. It estimates the heating and cooling needs of individual buildings and entire districts, the basis for correctly sizing any system.
- Energy source sizing and optimisation. It determines the optimal size and combination of energy sources, such as geothermal, heat pumps and other renewables, to meet demand efficiently.
- Economic viability analysis. It assesses investment costs, operating costs and financial returns so that clients can compare scenarios and make informed decisions.
- API and AI integration. Its platform connects to third-party tools and data sources through APIs and uses artificial intelligence to speed up analysis and improve the accuracy of results.
- Phased development planning. Planeto structures the network’s roll-out in successive phases, aligned with demand growth, available funding and connection priorities. This spreads investment over time and reduces project risk while keeping the network scalable.

GEOEG is an engineering and innovation firm providing subsurface energy solutions to create a sustainable built environment. We work for architecture firms, engineering consultancies, construction companies, real estate agents, urban planners, public and private administrations, and general and specialised contractors. Our services cover feasibility studies, schematic and detailed design, design-and-build projects, and advisory work on assessing and solving technical problems.

Rudolf Ingénieurs is a consulting and project management firm specialised in energy engineering and sustainability. R Ingénieurs’ services range from the design and installation of heating, ventilation and air-conditioning (HVAC) systems to turnkey energy retrofits of small buildings. R Ingenieurs is GER’s preferred partner for Cantonal Energy Certification for Buildings (CECB), Minergie certification and federal programs such SwissEnergies and ProKilowatt




