Sue Heilbronner is an angel investor and Investment Partner based in Boulder, Colorado. See sector focus and contact routes.
Sue Heilbronner is an angel investor and Investment Partner based in Boulder, Colorado, who also serves as an adjunct professor of law and entrepreneurship at the University of Colorado School of Law and an active mentor with Techstars Boulder[1][2]. She leads MergeLane, a firm that invests in women-led businesses and startups with at least one female in leadership, focusing on pre-seed and seed stages with a geographical preference for Boulder, Colorado[3]. Typical check sizes through MergeLane range from $1 million to $5 million per company, supporting early to mid-stage ventures[3]. Her notable portfolio companies include Shinesty, Discovery Communications, Inc., Pana, Rapt Media, Zestful, and Kapta[2][3]. Heilbronner is known for a direct, collaborative, and challenger partnership style that fosters startup growth, reflecting her background as a seasoned startup operator, CEO, and executive coach[3]. While she invests in dynamic technology companies, her distinctive point of view centers on addressing the gender gap in entrepreneurship by supporting women entrepreneurs[3].
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