Tetra Tech ARD is a wholly owned subsidiary of Tetra Tech, a leading provider of consulting, engineering, and technical services worldwide. Tetra Tech is creating practical, environmentally responsible solutions that ensure sustained development. Our service areas include water resources and infrastructure, agriculture and economic growth, environment and natural resources, land tenure and property rights, democracy and governance, and knowledge management. For governments, multilateral banks, and multinational corporations, Tetra Tech provides scientific and institutional solutions for the world’s most complex challenges.