Laos, a landlocked country in Southeast Asia, is facing a multitude of environmental challenges, including deforestation, water pollution, and air pollution. To address these issues, the government of Laos has been working with environmental consulting firms to develop and implement sustainable solutions.
Here are the five largest environmental consulting firms in Laos:
- Environmental Resources Management (ERM): ERM is a global environmental consulting firm that has been operating in Laos since 1994. The firm provides a wide range of services, including environmental impact assessments, environmental management plans, and sustainable development planning.
- AECOM: AECOM is a multinational engineering and construction firm that also provides environmental consulting services. The firm has been active in Laos since 2006, and its services include environmental impact assessments, air quality monitoring, and water resources management.
- Golder Associates: Golder Associates is a Canadian environmental consulting firm that has been operating in Laos since 2005. The firm provides a wide range of services, including environmental impact assessments, geotechnical engineering, and water resources management.
- Tetra Tech: Tetra Tech is a global engineering and consulting firm that has been operating in Laos since 2008. The firm provides a wide range of services, including environmental impact assessments, water resources management, and climate change adaptation.
- CH2M: CH2M is a global engineering and consulting firm that has been operating in Laos since 2007. The firm provides a wide range of services, including environmental impact assessments, water resources management, and transportation planning.

The 7 Biggest Environmental Consulting Firm near Vientiane
ESL Sole Company Ltd.
- Address: Sibounhueng Rd ວຽງຈັນ, 01000, Laos
- Map: Click here
- Rating: 4.5 (13)
- Phone: +856 21 413 723
- Opening hours:
Monday: 9:00 AM – 5:00 PMTuesday: 9:00 AM – 5:00 PMWednesday: 9:00 AM – 5:00 PMThursday: 9:00 AM – 5:00 PMFriday: 9:00 AM – 5:00 PMSaturday: ClosedSunday: Closed - Reviews:
2 years agoESL has over 20 years of experiences in a large variety of sectors and projects, providing services in consulting, research, and project management services in the environmental and human development sectors.7 years agoESL Sole Company Ltd has moved to 26 Sibounheuang Rd, 334/25 Sibounheuang Village, Chanthaboury District, Vientiane Capital, Lao PDR7 years agoNew location is 26 Sibounheuang Rd., 334/25 Sibounheuang Village, Chanthaboury District, Vientiane Capital.7 years agoEnvironmental and Social Consulting Company where I working for . We provide good quality of service for our clients8 years agoOne of a high profile company I have been associated with.
ALS (Lao) Co., Ltd
- Address: 297 Saphanthong Neua Road, PO Box 11289, Vientiane, Laos
- Map: Click here
- Rating: 4 (15)
- Phone: +856 21 313 438
- Website:
- Reviews:
5 years agoThe lab for mining project support. Also good for some local advice.6 years agoALS Lao services the Minerals Mining and Life Sciences sector2 years ago3 years agoIt feels warm like the old village3 years ago
Mekong Consultants Co., Ltd
- Address: XJRG+5XV, Phontongsavat Village, Chanthabuly District, Vientiane, Laos
- Map: Click here
- Rating: 4.2 (5)
Geo-Sys (Lao) Co., Ltd
- Address: WJWF+7C7, Vientiane, Laos
- Map: Click here
- Rating:
Milsearch Lao EOD Sole Company Ltd
- Address: XJ3M+235, Vientiane, Laos
- Map: Click here
- Rating: 5 (1)
ILF Consulting Engineers Lao Co., Ltd.
- Address: Vientiane, Laos
- Map: Click here
- Rating: 4.3 (6)
Earth Systems
- Address: Rue 23 Singha, Vientiane, Laos
- Map: Click here
- Rating:

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