Crimestoppers will have its branding and crime information line number displayed at 58 UK horse-racing courses this year after signing an agreement with the Jockey Club and the Racecourse Association.
The partnership is designed to help the horse-racing industry tackle the betting scandals that have tarnished its reputation in recent times.
It will also give the charity access to five million potential witnesses of crime.
Dave Cording, director of operations at Crimestoppers, said: "This deal gives us an opportunity to target more than five million people at the races with our anonymous phone line, while our new partners will be able to receive intelligence through us to help them combat their internal issues."
The venture was launched at Newmarket last week, where three Crimestoppers' banners were on show. The marketing scheme will be rolled out to the UK's major horse-racing venues over the season, but negotiations on available space will be made on an individual basis.
Cording said he hoped the racecourses would display the freephone number on tickets and racecards as well as on banners.