MULTI has carried out assignments funded by His Majesty's Government of Nepal, International Development Banks, United Nations,  and other Regional and Bilateral Agencies. Several projects have been completed in association with various reputed international  consulting firms.

Ω His Majesty's Government of Nepal
- Water and Energy Commission Secretariat (WECS)
- National Planning Commission (NPC)
- Nepal Water Supply Corporation (NWSC)
- Nepal Electricity Authority (NEA)
- Department of Irrigation (DOI formerly DIHM)
- Department of Roads (DOR)
- Department of Water Supply and Sanitation (DWSS)
- Department of Housing, Physical Planning and Urban
- Development (DHUD)
- Department of Archaeology (DOA)
- Department of Tourism (DOT)
- Department of Soil Conservation (DOSC)
- Ministry of Works and Transport (MOWT)
- Ministry of Local Development (MLD)
- Ministry of Agriculture (MOA)
- Ministry of Education and Culture (MOEC)
- Ministry of Health (MOH)

Ω International Consulting Firms
- Nippon Koei Company Ltd., Japan
- Consulting Engineers Salzgitter GmbH, Germany
- EPOS Health Consultants (a GOPA group enterprise)
- GOPA Consultants Ltd., Germany
- Intercontinental Consultants & Technocrats (P) Ltd., India
- Sir M Macdonalds & Partners, UK
- Science Applications International Corporations, USA
- Louis Berger International Inc., USA
- Wilber Smith and Associates, USA
- Sir William Halcrow and Partners, UK
- Binnie and Partners, UK
- Engineering Consultants, Sri Lanka
- Canadian International Water and Energy Consultants
- Hyundai Engineering Co. Ltd., South Korea
- Chas. T. Main International Inc., USA
- South Staffordshire Services Ltd., UK
- Mediconsult Management Soln BHD
- Eggleston Macdonald Pty. Ltd., Australia
- Scott and Furphy Pty. Ltd., Australia
- SMEC., Australia
- RRI, Germany