About discoverDEF.com

discoverDEF.com was launched by Integer Research in 2010 to offer a free and independent service to truck & bus operators and fleets in North America needing to find DEF supply locations or suppliers to their fleet terminal. discoverDEF.com includes locations and terminal suppliers across Canada and the USA.

The discoverDEF.com partners are listed throughout the site. We are grateful to our partners for allowing us to provide a free service to the trucking industry through their support and funding.

discoverDEF.com data

The location data for the DEF supply points are gathered from a range of sources and data suppliers all over North America and are dependent on these sources being accurate and up to date. We regularly audit the database by calling DEF suppliers directly to verify their location and availability of DEF, and constantly monitor the dataset for errors using geocoding and deduplication algorithms.

If, however, you find that the information we provide is incorrect, or if we have missed a DEF supplier, please let us know so that we can update our database to provide a better service in the future.

If you sell DEF, or are a DEF distributor and would like your location or supply details listed on discoverDEF.com, please contact:

Laura Cross: laura.cross@discoverdef.com

There is no cost for listing on discoverDEF.com.

Sponsorship & Marketing

To find out more about our data services or to become a sponsor or advertiser on discoverDEF.com, please contact:

James Dixon: james.dixon@discoverdef.com