RoseAnn B. Rosenthal

RoseAnn B. Rosenthal is the President of Broad Street Angels, a prominent early-stage angel investment group based in Philadelphia, Pennsylvania. Elected to her current executive leadership position in 2022, she oversees a growing portfolio of more than 50 investments across the software, biotechnology, and emerging technology sectors. Under her direction, the organization expanded its capital deployment in 2024 to include new ventures in artificial intelligence and healthtech. Rosenthal is a recognized figure within the regional startup ecosystem, frequently collaborating with major institutions like the University of Pennsylvania and Ben Franklin Technology Partners. She actively participates in regional capital allocation initiatives, recently speaking on technology investor panels throughout 2025. Her current focus remains firmly on bridging the gap between early-stage technology entrepreneurs and institutional capital to accelerate the commercialization of innovative regional startups.