Bill Tarr

Co-Founder, Managing Director at MOTIV

Bill is an Unreasonable Mentor. Bill was part of Unreasonable Impact Americas 2024, and has advised over 14 Unreasonable companies.

Bill Tarr has spent 25 plus years as a strategic advisor, coach, confidant, and investor devoted to serving bold, systems-changing founders and investors. He has supported the formation and scale-up of several category leading investment funds and companies across climate technology, project finance, regenerative food and agriculture, nature-based solutions, green and affordable real estate, healthcare, and financial inclusion. Notable examples include: Devoted Health, Uprising (now The Space Between), Curemark, Ezra Climate, ReGen Ventures, Generate Capital, The Cranemere Group, Zouk Capital, Community Investment Management (CIM), XL Fleet, Zep Solar, Ecosystem Integrity Fund, Beartooth Group, MicroVest, Enertech Capital, etc. He also plays a key role in helping institutional and family investors identify and evaluate emerging private market opportunities that beat the benchment financially while generating significant quantifiable positive social and environmental impact.