About International Development
We have more than 40 years of development experience and use an integrated approach focused on empowering local communities and leveraging private investment to create a safer, more equitable, and more prosperous world for all.
Tetra Tech’s international development service offerings have expanded over time in response to our clients’ needs. We offer a comprehensive suite of integrated services in 15 key practice areas.
Our people are passionate about improving lives by applying their technical expertise and experience to create practical, sustainable, and environmentally responsible development solutions. We serve various development clients, including government agencies in the United States, the United Kingdom, Europe, and Australia as well as multilateral development banks and the private sector. Learn more about the work of our teams based in the United Kingdom and Europe, and our teams in the Indo-Pacific region.
We are part of the larger Tetra Tech family—a leading provider of global consulting and engineering services. Tetra Tech supports government and commercial clients by providing innovative solutions focused on water, environment, infrastructure, resource management, energy, and international development. With 27,000 employees worldwide, Tetra Tech’s capabilities span the entire project life cycle.
years of experience
international development employees
Tetra Tech provides innovative development services on six continents. Tetra Tech’s International Development Services group operates out of eight key home offices around the world.
159 Bank Street
Burlington, VT 05401
+1 (802) 495-0282
1320 N. Courthouse Road
Arlington, VA 22201
+1 (703) 387-2100
100 Nickerson Road
Marlborough, MA 01752
+1 (508) 786-2200
107 Gray’s Inn Road,
London, UK WC1X 8TZ
+44 (0)20 7837 2881
1 Northfield Road
Reading, RG1 8AH
+44 118 956 6066
Worldpark Level 1
33 Richmond Road
Keswick, South Australia 5035
+61 8 8375 4400
Jan Luijkenstraat 92-3
1071 CT Amsterdam, The Netherlands
+31 20 214 2127
+31 20 214 2128
+48 22 578 2280
In addition to our home offices, we also have various regional hub offices around the world, located conveniently close to some of our clients’ main overseas offices.
27 Hang Bai Street
Office88@Kasablanka, Tower A, 27th Floor Unit C
Jl Casablanca Raya Kav.88, Jakarta 12870, Indonesia
Plot 8H, Roan Road, Kabulonga Zambia
3rd Floor, JMT Building, ADB Avenue,
Pasig City, Metro Manila
Minas Gerais, Brazil
Av. Afonso Pena, 1.500, 5º andar
Ground Floor, Prosperity House, Westlands Road, Westlands
Phnom Penh, Cambodia
Level 3, Room 322, Phnom Penh Center, Corner Sihanouk (274) & Sothearos (3)
Blvd, Sangkat Tonle Bassac, Khan Chamkar Mon
Port Moresby, Papua New Guinea
Level 2, Comrade Haus, Comrade Place (off Frangipani Street), Hohola
Papua New Guinea
Level 2 – Module 2, Provident Plaza One
33 Ellery Street
Learn more about Tetra Tech’s 550+ office locations worldwide.
Connect with us. Reach out to our international development experts.
Create a sustainable future with us
Our people around the world are supporting our mission and vision for a sustainable world. Join us today.