Mannvit offers engineering, consulting, management, operational and EPCM services to projects all over the world.

Mannvit core activities include: geothermal and hydroelectric power development, geothermal district heating, infrastructure and transportation, buildings, renewable energy and climate, environmental consulting, power transmission, industry, IT and telecommunications.

Mannvit Engineering is a consulting engineering firm that specializes in geothermal,[8] geothermal district heating, hydroelectric, power transmission as well as other renewable energies such as wind power and environmentally-friendly processes, such as hydrogen,[9] biofuels[10] and biogas,[11] anaerobic digestion,[12] waste management,[13] CO2 sequestration,[14][15] carbon dioxide to methanol,[16] and large scale composting.

These include buildings, transportation infrastructure, traffic and planning, environmental studies issues, hydrography measurements, land surveys, geology and acoustics.

Recent international projects include geothermal development in Hungary,[23] Indonesia,[24] Kenya and Ethiopia.