Electricity and Energy
- Costa Rican Institute of Electricity (ICE)
- Costa Rican Petroleum Refinery
- Energy Sectorial Unit of the Ministry of the Environment, Energy, and Telecommunications (Information available in English)
- National Power and Light Company
Telecommunications
- Costa Rican Electricity and Telecommunications Institute (ICE)
- Radiográfica Costarricense S.A. (RACSA)
- Telecommunications Regulator (SUTEL)
- Vice Ministry of Telecommunications
Transport
- Atlantic Port Authority
- Costa Rican Institute of Pacific Ports (INCOP)
- Costa Rican Institute of Railways (INCOFER)
- Ministry of Transport and Public Works
Water
- Costa Rican Institute of Fisheries and Aquaculture (INCOPESCA)
- National Service of Groundwater Irrigation and Drainage
- Water Department of the Ministry of the Environment, Energy, and Telecommunications
- Water and Sewage (AyA)
Tourism