Who we are

Tetra Tech International Development Europe pursues clear solutions to international development’s most complex challenges.

We are trusted by partners across the European development community to design and implement complex multi-year programmes across governance and institutional strengthening, sustainable economic development and infrastructure. We are pproud to be a Gold Supplier to the UK’s Foreign, Commonwealth and Development Office.

Our monitoring evaluation, research and learning team is one of the largest in Europe. We implement some of the largest independent evaluations in the UK international development sector, and work with a number of European institutions to evaluate a broad range of areas and disciplines.

Throughout our programmes we integrate expertise that prioritises climate and environment, gender and social inclusion and digital solutions. Each area has a dedicated team who ensure that all of our programmes support these vital global concerns, with a constant eye on the long-term sustainability and equality of our work. We are a trusted partner on technical assistance facilities and delivery frameworks for European and UK institutions, providing agile and responsive expertise.

We deliver complex projects in challenging environments to support the recovery, resilience and institutional strengthening of the world’s least developed countries.

Our European operations sit alongside a number of the company’s other operating units that deliver international development services. Together we have over 40 years of global development experience, working to empower local communities and leverage private investment to create a safer, more prosperous world for all.


Colleagues across our
offices and programmes


Live projects


Countries with
projects and activities

Our values

  • We value our people

    Our people cover a wide range of disciplines, employment structures and countries but, wherever they are and whether they’re corporate staff or part of the technical delivery teams in-country, we ensure they work in fair, safe and flexible environments. We have written our equality, diversity and inclusion commitment into policy and support it with regular training, monitoring and staff engagement.

  • We deliver quality results

    We go the extra mile to deliver value for our clients, impact for beneficiaries and a fair financial return for the company to grow sustainably. Our projects regularly receive A or A+ in client reviews, incuding CRIDF (A+, 2020), UKNIAF, ACE, SUED (A, 2020) and LINKS, REINVENT (A, 2021). Our summative evaluation of FCDO’s Early Resilience Consortium in Afghanistan has been graded Excellent by EQUALS, FCDO’s 3rd party QA service.

  • We collaborate effectively

    We work authentically with our clients, beneficiaries and partners and strive to communicate clearly and openly at all times. We aim to create effective and mutually beneficial partnerships and collaborate with a wide range of organisations. This includes extensive work with SMEs and local partners across the world.

  • We encourage creativity and innovation

    We encourage entrepreneurial thinking and provide the freedom, support and investment for new ideas and initiatives. We have developed COSMOS and Lighthouse solutions in-house and continue to innovate on our projects. Our evaluation teams have developed tools and models through their work that have shared across Tetra Tech and with clients.

  • We operate with integrity

    We will do the right thing, be honest and keep to our commitments. Our approaches to safeguarding and anticorruption are set to the highest standards in our theatre of business and we regularly review and update them to ensure we maintain these high standards.

A man is taking a technical photograph of electricity infrastructure. He is wearing a yellow hi-vis vest branded with the logo of Tetra Tech.

One Tetra Tech

As part of the wider Tetra Tech family, we belong to a global network of consultants that brings together local knowledge, resources and experts to create lasting and meaningful change.

Across the world, Tetra Tech is home to industry-leading scientists, engineers, and technical specialists and we use this expertise throughout project life cycles. Our strength is in collectively providing integrated services—delivering the best solutions to meet our clients’ needs.