Kathmandu's historic monument zones are supported by a robust network of local, national, and international organizations dedicated to heritage preservation, tourism development, and community welfare.
* **Kathmandu Valley Preservation Trust (KVPT):** An international non-profit dedicated to safeguarding the extraordinary architectural heritage of the Kathmandu Valley, heavily involved in post-earthquake reconstruction. * **Department of Archaeology (Government of Nepal):** The primary governmental body responsible for the protection, maintenance, and excavation of archaeological sites and monuments. * **UNESCO Kathmandu Office:** Works closely with the government to monitor and preserve the seven Monument Zones of the Kathmandu Valley World Heritage property. * **Nepal Tourism Board (NTB):** A national organization promoting tourism and facilitating sustainable visitor experiences around the city's landmarks. * **Kathmandu Metropolitan City (KMC) Heritage Department:** Manages local municipal efforts to maintain the urban fabric around historic sites like Kathmandu Durbar Square. * **Rotary Club of Kathmandu:** One of the oldest service clubs in the region, actively engaging in community health, education, and post-earthquake rebuilding efforts.