Great Britain's national mapping agency
No-one knows Great Britain better
Online | Mobile | Paper
Start your adventure
OS MapFinder now on Kindle Fire HDX
Our outdoor map app is available from Amazon, as well as the iTunes store and Google Play.
Discover new adventures in 2015
Find new routes to walk, run and ride in the New Year and print them all on OS maps ideal for starting a new fitness plan.
Secure information-sharing platform saves emergency responders £760 000.
We work closely with Public sector organisations. Find out about the PSMA and OSMA mapping agreements.
PSMA and OSMA
Create your own map
Personalise your outdoor adventures with a bespoke OS map. Select an area and add your own photo and title.
Make your custom made map
We're all about location
You'd be lost without us – we've got Great Britain mapped.
What we do
Free digital map data
View, download and order OS OpenData products or use OS OpenSpace to enhance your own application.
Open data products
Download sample data
Sample our data for free and see how it can help your business.
Try our products
Our maps are accurate to one metre – perfect for planning building work.
Maps for planning applications
Working with OS map data products
Discover how business and government have worked with our products and the difference it has made to them. View all case studies.