Blackstone investment in ISN puts a $2 billion value on the Dallas tech firm
Blackstone investment in ISN puts a $2 billion value on the Dallas tech firm It also makes the Wall Street giant the only outside investor in ISN, an employee-owned company. Blackstone Group, the world's largest private equity firm, announced it had made a "significant" minority investment in Dallas-based ISN Thursday through its Blackstone Growth arm. Investment firm Blackstone Group says its “significant” minority investment in Dallas-based ISN, a contractor management software company helping clients with safe contractor hiring practices and corporate liability, puts a $2 billion valua...