Summer is a New York proptech company that builds SummerOS, asset-management software for short-term rental operators. After starting as an asset-heavy 'own a vacation home without the risk' model, the Airbnb-alumni team pivoted to SaaS, crunching market data and a property's own performance to tell operators exactly what to fix, raise, or rethink. It aims to bring professional-grade, data-driven tools - long standard in commercial real estate - to the fragmented $125B short-term rental market.

Paul Kromidas is the founder and CEO of Summer, a New York short-term rental technology company behind SummerOS, which he pitches as the asset-intelligence platform for vacation-rental owners and operators. A former Airbnb product and strategy lead who helped build Airbnb Luxe, he started Summer in 2021 to make high-performance vacation-rental ownership accessible, then pivoted the business toward SaaS software that forecasts rental revenue and optimizes property performance.