Chelsea owner Todd Boehly has agreed to buy a 49% share in Hundred franchise Trent Rockets.
Cain International, founded by American Boehly and British businessman Jonathan Goldstein, will pay just under £40m for the stake in the Rockets, valuing the entire franchise at £79m.
Nottinghamshire, hosts of the Rockets at their Trent Bridge ground, will retain control of the other 51%.
Cain, a real estate investment company, was in the running for a stake in London Spirit before a 49% share in the Lord's team was sold to a Silicon Valley consortium for £145m.