Who We Are

In 2012 we set up Ideal Postcodes, a UK based address verification service, and Postcodes.io, an open-sourced postcode and geolocation API. Through our brilliant team's hard work and loyal customers, we became one of the leading and fastest-growing address verification companies. Our APIs now handle over 1 billion requests per month and we couldn't be more grateful.

We wanted to branch out to the United States to provide US businesses with the most accurate, up-to-date and complete address data by offering our proven, successful, and trustworthy platform.

From small businesses and start-ups through to public and enterprise organisations, we help businesses deliver a friction free customer experience with our simple service. To us, it's more than just address verification. It's giving businesses more time to focus on what they care about.

Our team of developers and address specialists work together to provide the latest address data, fully featured tools, integrations and an effortless user interface. With sheer passion and determination, we strive to find the best solution for every customer. Hear what our customers say about us on our customer stories.

Our Values


We provide a simple, manageable system that is easy for every user to understand and implement.


Our services are high quality and consistent. We've developed our address lookup tool to be evergreen, fully-featured and scalable.


You are our priority. We believe in delivering support that is approachable and accessible with fast response times.