Robbie Horwitz

Robbie Horwitz is currently an investor at Addition, a prominent venture capital firm located in New York, New York. Operating within the multibillion-dollar investment vehicle established by former Tiger Global Management partner Lee Fixel, he evaluates equity funding opportunities across the broader technology landscape. Horwitz directs his primary investment efforts toward scaling technology-enabled companies across multiple venture funding stages. He maintains a specific mandate to source, analyze, and execute prospective venture deals within the software-as-a-service and enterprise software verticals. Before joining the New York-based fund, he built a foundational professional career operating directly at the intersection of the traditional corporate finance and modern global technology sectors. Today, Horwitz utilizes his dual background in financial analysis and technology markets to identify high-growth software startups and support the ongoing strategic expansion of Addition’s global asset portfolio.