Improving lives with evidence-based, sustainable development solutions

Delivering solutions to support climate-resilient communities

Tetra Tech is Leading With Science® to support climate change adaptation and mitigation around the world.

Supporting recovery efforts in Ukraine and Eastern Europe

Tetra Tech is supporting our clients, the Ukrainian people, and neighboring countries in the recovery and reconstruction effort.

Creating holistic and inclusive approaches to development solutions

Tetra Tech leverages our global network of experts to meet the need for greater economic, social, gender, and environmental justice and equity.

Tetra Tech designs and delivers practical and impactful international development solutions in partnership with our clients, partners, and the communities we serve. We leverage decades of technical expertise from our teams across the globe to address today’s most complex social, economic, and environmental challenges and create positive impact for the future. Learn more.

40+

years of experience

100+

countries

250+

active projects

5,000+

international development employees

Our featured international development highlights

Projects

Strengthening Energy Security in Ukraine

Expert Interviews

Carolina Barreto Discusses the Climate Resilience Lessons from Expanding Energy Access in Africa

Projects

Mobilizing Finance to Increase Climate-Resilient Water and Sanitation Services

Projects

Advancing Equitable and Impactful Climate Adaptation

Projects

Strengthening Democratic Governance in Georgia

Expert Interviews

Kalinda Magloire Discusses Challenges and Opportunities for Locally Led Peacebuilding Programming in Fragile Contexts

Insights

One Year In: Transforming Development through Partnership Tools

By Dr. Donna Vincent Roa

Insights

Scaling Ground Truth Data Collection, Use, and Sharing to Promote Advanced Crop Analytics

By Tetra Tech’s Agriculture and Economic Growth team

Insights

Securing Land Rights for Female Farmers in India

By Thais Bessa

Explore our international development solutions

Our world-class engineers and scientists leverage industry-leading technical expertise, in-depth local knowledge, and sustainable approaches to provide resilient solutions for our clients.

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.

Subscribe to our international development newsletter to receive updates on our projects, people, and job opportunities!