"We look forward to combining Tetra Tech's focus on diversity, equity, and inclusion with our technical expertise in economic empowerment and gender integration to strengthen women's equity in Colombia." In January, Tetra Tech was awarded a $25 million, five-year contract from USAID for consulting services to increase renewable energy and reduce deforestation in the African nation of Zambia. Tetra Tech also received a five-year contract from USAID in March worth $39 million to support Indonesia's efforts to obtain reliable and sustainable renewable energy. Tetra Tech has 450 offices worldwide and about 20,000 employees. It reported net income of $52.4 million in the fiscal first quarter for 2021.