PSG, a growth equity firm partnering with middle-market software and technology-enabled services companies, agreed to acquire Traction Guest, a provider of cloud-based visitor management and workforce security software. Financial terms were not disclosed. "Visitor management and workforce security represents a $12bn addressable market worldwide, bolstered by increasing demand for simple, clear and compelling tools. With that, we believe Traction Guest and Sign In App have the potential to forge the future of the industry. With the backing of PSG V, we’re excited to offer visitor management solutions to small, mid and large-scale organizations around the world," Jeff Gordon, PSG Senior Advisor.