BV Investment, a middle-market private equity firm, completed the investment in CallTower, a leader in delivering cloud-based enterprise-class communications, contact center and collaboration solutions. Financial terms were not disclosed. "The growth of remote and hybrid workforces has driven demand for collaboration platforms and CallTower has been there to help teams stay connected. As a solution-agnostic provider aligned with best-of-breed platforms, CallTower is helping change the way people communicate around the world and get work done. We have found a like-minded partner in BV and this new relationship will help us to accelerate our growth, both organically and through acquisitions, while maintaining a healthy, well-functioning organization and providing exceptional service to our customers," Bret England, CallTower Chief Executive Officer.