Lowercase Capital

Crystal English Sacca is an American venture investor, author, and partner at Lowercase Capital and co-founder and partner at Lowercarbon Capital, where she has co-led early investments in technology and consumer companies such as Uber and Blue Bottle Coffee and advises portfolio companies on strategy and growth. She originally built her career in advertising and creative direction with global brands before moving into venture investing and climate-focused funds, leveraging design, storytelling, and strategic insight in her investment work. Beyond investing, she has published bestselling books and serves on cultural and design institution boards, reflecting her engagement in arts, philanthropy, and community initiatives. At Lowercarbon Capital, she focuses on backing climate solutions and environmental innovation alongside traditional venture interests. Her public work also includes advocacy for diversity in venture capital and involvement in philanthropy and social impact efforts.