We strive to deliver the best value in everything we do. To achieve this, we consider some key factors when reviewing a tender, including best quality, efficiency, value for money and risk.
We review each proposal carefully and consider the needs of both OS and the stakeholder.
Current opportunities
Find out how you could be working with OS. We advertise tender opportunities via Contracts Finder portal, or we will publish via the Official Journal of the European Union (OJEU) for larger contracts.
Contracts - 2019
We publish all awarded contracts over the value of £25,000. Find details of all 2019 contracts over the value of £25,000.
Contracts - 2018
Find details of all 2018 contracts over the value of £25,000.
Guide for suppliers
Find out more about our approach to Public Procurement, including the range of goods and services we purchase.
Purchase orders
See our purchase order terms and conditions (PDF).
Supplier code of conduct
Click to download our supplier code of conduct.
Key OS suppliers
View a list of key suppliers that provide goods and services to OS.