Isaiah Kacyvenski is the Co-Founder and Managing Partner of Will Ventures, an early-stage venture capital firm in Boston. See sector focus and contact routes.
Isaiah Kacyvenski is the Co-Founder and Managing Partner of Will Ventures, an early-stage venture capital firm in Boston, MA, which he launched in 2019 alongside Brian Reilly after playing eight NFL seasons as a linebacker and earning an MBA from Harvard Business School. His investment thesis targets early-stage companies (seed and Series A) at the intersection of sports technology and adjacent markets including human performance, consumer health, wellness, media, and entertainment. The firm typically leads rounds with an average round size of approximately $8 million, employing a hands-on approach to provide strategic support. Notable portfolio companies include Mighty Health, Elo Health, Candy Digital, and Liteboxer, reflecting a focus on innovative health, fitness, and digital solutions. Kacyvenski distinguishes his approach by using sports as a unique lens to identify novel technologies that can scale into large, adjacent consumer and health markets. He has publicly emphasized that the demands and allure of the sports market serve as an ideal proving ground for innovations beyond the category.
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