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Andy Sack primarily invests in early-stage technology companies. His focus areas include B2B SaaS, consumer technology, and frontier tech, always prioritizing strong founder teams and disruptive potential.
Andy Sack works as a Managing Partner at Founders Co-op, a prominent venture capital firm based in the Pacific Northwest, specializing in seed-stage investments.
Andy Sack is the Co-Founder and Managing Partner of Founders Co-op and the Co-Founder and Co-CEO of Forum3, based in Seattle, Washington. Before his venture capital career, he co-founded and exited three technology companies, including the sale of Abuzz to The New York Times and Kefta to Acxiom, after earning degrees from Brown University and MIT Sloan. He previously served as the Managing Director of Techstars Seattle and worked as a digital transformation consultant to Microsoft CEO Satya Nadella from 2015 to 2021. Through Founders Co-op, Sack has backed over 125 founding teams, including early seed investments in four unicorns such as Remitly, Outreach, and Zipline. In 2024, he co-authored a book on applying artificial intelligence in the enterprise sector. His current focus centers on early-stage technology investments, enterprise software, and artificial intelligence solutions.
Andy Sack stands as a pivotal figure in the Pacific Northwest's venture capital landscape, serving as a Managing Partner at Founders Co-op. This prominent seed-stage venture fund is renowned for its early and impactful investments in technology companies, and Sack's leadership has been instrumental in shaping its success and investment philosophy. At Founders Co-op, he plays a critical role in identifying promising startups, guiding investment decisions, and providing strategic support to portfolio companies as they navigate the challenging early stages of growth.
Sack's investment focus is primarily on early-stage technology companies across a diverse range of sectors. He has a keen eye for innovative solutions in areas such as B2B SaaS, consumer technology, and emerging frontier technologies. While Founders Co-op has a strong presence and impact in the Pacific Northwest, Sack's investment thesis extends to compelling opportunities wherever they arise, always prioritizing strong founder teams and disruptive potential. His approach is deeply rooted in a founder-first mentality, understanding the unique challenges and triumphs of building a company from the ground up.
Before co-founding Founders Co-op, Andy Sack built a distinguished career as an entrepreneur himself, providing him with invaluable insights into the startup journey. He co-founded Revenue Science, a pioneering company in online advertising technology, which was later acquired. This experience equipped him with firsthand knowledge of scaling a tech business and navigating market dynamics. Furthermore, Sack was a co-founder of TechStars Seattle, an accelerator program that has become a cornerstone of the region's startup ecosystem, further cementing his commitment to nurturing new ventures. His background as both a builder and an operator gives him a unique perspective that resonates deeply with the founders he supports.
Through Founders Co-op, Andy Sack has been involved in backing numerous companies that have gone on to achieve significant success and become household names in their respective industries. While specific personal investment lists are often private, his work with Founders Co-op includes early support for companies like Remitly, a leading digital remittance service; Outreach, a sales engagement platform; Rover, a popular pet care marketplace; Glowforge, a creator of 3D laser printers; and Defined.ai, an AI data platform. These investments highlight his ability to spot transformative ideas and teams with the potential for massive impact.
Andy Sack's dedication extends beyond capital provision. He is known for his hands-on mentorship, leveraging his vast network and operational expertise to help founders overcome hurdles, refine strategies, and accelerate their growth. His commitment to fostering a vibrant startup community makes him a highly respected and sought-after partner for entrepreneurs looking to build the next generation of technology leaders. His vision continues to drive Founders Co-op's mission to empower founders and build enduring companies.
