Supplier Information

At Tetra Tech International Development Europe Limited, including our branches and subsidiaries, we are committed to integrity and ethical business practices.

We maintain business practice standards that command the respect of everyone conduct business with, including our suppliers and subcontracting associates. These standards are intended to protect Tetra Tech’s reputation and brand, the quality of our products and services and the best interests of our clients, shareholders and personnel, as well as our reputation and brand.

We expect everyone providing services to Tetra Tech – including individuals, companies, partnerships and any third parties (including their personnel, servants, agents and subcontractors) – to share this commitment and require them to conduct themselves in accordance with our Supplier Code of Conduct. On this page, you can find all the policies and codes that we require our partners to uphold.

Supplier Code of Conduct

Privacy Notice

Standard Contractual Clauses (Annex)

Safeguarding Policy

Whistleblowing Policy

Quality Policy Statement

Anti-Bribery & Corruption Policy

Conflict of Interest Policy

Corporate Social Responsibility and Sustainability Policy

Gender Policy

Equality, Diversity & Inclusion Policy

HSSE Commitment

Tetra Tech UK Group Tax Strategy