Warburg Pincus and Martis Capital are merging their respective portfolio companies, Qualifacts and Credible Behavioral Health, according to a news release.

Qualifacts, based in Nashville, is a provider of electronic health records for behavioral health and human services organizations. Credible, based in Rockville, Md., provides web-based software for clinic, community, residential, and mobile care providers.

The combined company serves more than 800 behavioral health agencies nationwide.

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.

Martis Capital, with offices in San Francisco and Washington, D.C., is a private equity firm focused exclusively on the healthcare industry. Founded in 2012, the firm targets growth-oriented healthcare companies in the middle market.

Terms of the transaction were not disclosed.