Gerhard van der Zwan

Part of Login International Group BV, Login VSI, Inc. develops software technology to test and monitor the performance. The company is based in Woburn, MA. The company was founded by Eric-Jan van Leeuwen, Gerhard van der Zwan. John Vigeant has been the CEO of the company since 2023.

Part of Login International Group BV, Login VSI BV is a Dutch company that specializes in maximizing end-user experience for digital workspaces. The company is based in Amsterdam, Netherlands and was founded by Gerhard van der Zwan and Eric-Jan van Leeuwen, with Eric-Jan van Leeuwen serving as CEO since incorporation. The company uses synthetic users to test and validate the impact of changes in physical, virtual, and cloud-based workspaces. The company's flagship product, Login Enterprise, integrates application compatibility testing, load testing, as well as performance and availability testing into a single platform. The company has over 400 customers in 50 countries and are a leader in automated performance and scalability testing, providing unparalleled insights through automation on performance, scalability, and application experiences across various platforms.