Private equity firms Vista Equity Partners and Insight Partners completed the investment in Portside, a premier provider of modern software solutions for the business aviation industry. Financial terms were not disclosed. "Portside is building a turn-key and scalable operating system that spans the full range of business aviation needs. Portside has strong momentum, and we look forward to partnering with Vista and leveraging its considerable software and operational expertise as we continue to build our business and enhance our product offerings for customers," Alek Vernitsky, Portside CEO and Co-Founder.