Exostar, a cloud platform provider for business-to-business collaboration for aerospace, defense and other industries, on Tuesday said it has agreed to be acquired by the private equity firm Thoma Bravo.

Terms of the deal, which is subject to regulatory approvals, were not disclosed.

Exostar is a joint venture of

BAE Systems, Boeing [BA], Lockheed Martin [LMT], Raytheon Technologies [RTX], Rolls-Royce, and the pharmaceutical giant Merck [MRK]. The exact ownership structure isn’t disclosed.

Exostar said that Thoma Bravo will leverage its expertise in enterprise software solutions to expand the company’s capabilities, particularly in cyber security.

“Our corporate vision remains unchanged,” Richard Addi, president and CEO of Exostar, said in a statement. “To be a trusted, innovative leader in secure business collaboration for highly-regulated industries.”

Addi also said that the “strategic investment positions us to more rapidly expand our community and delivery the digital trust that must exist between an enterprise and its suppliers, customers and partners. This transaction reflects the logical next step in our company’s evolution. We can leverage Thoma Bravo’s deep technology and security experience to take full advantage of our unique market position. Together, we plan to accelerate time-to-market for the Exostar suite of solutions that enable global enterprises to execute their mission-critical supply chain and drug development initiatives.”

Exostar Chairman Paul Kaminski the pending deal signals a “more growth-focused model” for Exostar that will allow it to “further innovate and expand its capabilities.”

Exostar is based in Northern Virginia. The company has about 250 employees and serves more than 150,000 organizations worldwide.

AGC Partners is Exostar’s financial advisor on the deal.