A decline in TV ratings and lingering concerns over off-field controversies have taken a toll on corporate interest in the National Football League.

Sponsorship spending on the NFL and its 32 teams rose 4.3 percent to $1.25 billion in the 2016-2017 season, according to IEG research. Spending rose 4.4 percent in the previous season.

The increase exceeds the 4.2 percent increase in overall 2016 sponsorship spending but trails the 4.7 percent increase in overall sports spending.

The NFL secured one major new partner in the 2016 season: Ford Motor Co. The company serves as the official truck of the NFL in a deal that splits the auto category with Hyundai Motor Co. (cars, SUVs, crossovers and luxury passenger vehicles).

NFL League/Team Sponsorship Revenue
NFL League/Team Sponsorship Revenue

2016 NFL Sponsors & Categories
2016 NFL Sponsors & Categories