Lowenstein Represents Aviation Software Company Portside in New Investment From Vista Equity

Lowenstein represented Portside, a leading provider of modern, cloud-based software solutions for global aviation, in a new investment from Vista Equity Partners, a global technology investor that specializes in enterprise software. The investment will accelerate platform integration, advance Portside's AI-enabled roadmap and further scale its global go-to-market capabilities. Current investor Insight Partners will remain a significant shareholder in Portside.

Since Vista's initial investment in 2024, Portside has strengthened its position as a leading cloud-native platform for business aviation, regional commercial airlines and aircraft leasing and finance. Now, with deepened investment from Vista, the company is entering an ambitious next phase centered on defining the global standard for modern aviation software, including continued development of Portside Horizon, its cloud-based flight management system, as well as expanded customer success and go-to-market capabilities designed to deliver seamless efficiency, enhanced decision-making and broader operational control for operators, airlines and lessors worldwide.

The Lowenstein team included Brendan J. Koeth, Mark P. Kesslen, Meredith Beuchaw, Kevin Colan, Doreen M. Edelman, James E. Gregory, Zarema A. Jaramillo, Kathleen A. McGee, Amy S. Mushahwar, Raquel Smith, Manali Joglekar, Abbey E. Baker, Bianka V. Barraza, Taryn E. Cannataro, Samantha Fox, Sydney J. Kaplan, Carly E. Nixon, Tricia Wagner, Zachary Bocian, Rahul J. Devnani, Crystal McDonald, Michelle Podolnyy, Christopher W. Raymond, Jessica I. Stewart, Chelsea Wong, Chynara Tolubaeva, Megan C. Bodie, and Joseph Mignone.