Capstreet and Aquiline Capital have agreed to sell Ontellus to Datavant, according to a news release.

Ontellus, founded in 1975 as Keais Records Retrieval and rebranded in 2017, is a provider of health records retrieval and claims intelligence based in Houston.

Datavant, founded in 2017 and based in Phoenix, Arizona, is a health data platform company.

CapStreet, founded in 1990 and based in Houston, is private equity firm that invests in owner-managed, lower-middle-market companies. The firm primarily seeks majority investments in the software, tech-enabled services and industrial business services sectors, across multiple industries including healthcare. 

Aquiline, founded in 2005 and with its U.S. operations based out of New York, is a private investment firm. Its private equity team targets investments in several industries. Investments typically falling in the range of $50 million to $350 million of equity, either funded all at once or over time.

Terms of the transaction were not disclosed.