Thomas H. Lee Partners (THL) has announced it will acquire a majority interest in Intelligent Medical Objects (IMO) from Warburg Pincus.

The deal was reported to be worth more than $1.5 billion.

IMO, based in Rosemont, Ill., is a healthcare data enablement company. Founded in 1994, the company states that its suite of software products is used by more than 740,000 physicians daily.

THL, based in Boston, is a private equity firm investing in middle market growth companies in three sectors, including healthcare. Founded in 1974, the firm typically targets companies with enterprise values between $250 million and $2.5 billion.

Warburg Pincus, based in New York, is a global private equity firm focused on growth investing. Founded in 1966, the firm takes a long-term perspective and invests in businesses at all stages of development within healthcare and several other sectors.