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Jason Portnoy is a Partner at Subtraction Capital, an early-stage technology venture capital firm based in the San Francisco Bay Area. He previously served as the Vice President of Financial Planning and Analysis at PayPal and was the first Chief Financial Officer of Palantir Technologies. Portnoy also held the Chief Financial Officer position at Practice Fusion and founded the venture capital firm Oakhouse Partners, where he served as Managing Partner. He holds a BS in Chemical Engineering from the University of Colorado Boulder and an MS in Management Science and Engineering from Stanford University. Beyond his corporate tenure, he authored the 2020 memoir Silicon Valley Porn Star and has appeared on programs like the Tim Ferriss Show. His current focus centers on early-stage venture capital investments across enterprise software, financial technology, and consumer technology sectors.
Jason Portnoy stands as a distinguished Partner at Subtraction Capital, an early-stage venture capital firm renowned for its strategic investments in groundbreaking technology companies. In his pivotal role, Jason is instrumental in sourcing, evaluating, and nurturing promising startups, bringing a wealth of operational and financial expertise to the venture capital landscape. He is deeply committed to partnering with visionary founders who are poised to disrupt industries and create significant value.
Subtraction Capital, under Jason Portnoy's guidance, primarily targets early-stage companies, often at the seed or Series A phase. His investment thesis centers on identifying businesses with strong product-market fit, scalable business models, and exceptional leadership teams. While his portfolio is diverse, Jason has a particular affinity for sectors such as financial technology (fintech), enterprise software as a service (SaaS), and innovative marketplace platforms. He seeks out companies that leverage technology to solve complex problems, enhance efficiency, and unlock new market opportunities.
Portnoy's career background provides a robust foundation for his investment acumen. Prior to his tenure at Subtraction Capital, he held significant operational leadership positions that honed his understanding of scaling high-growth technology companies. Notably, he served as CFO at PayPal during its formative years, playing a crucial role in its financial strategy and growth. His experience also includes leadership roles at other impactful organizations like Kiva, a non-profit organization focused on microfinance, where he further developed his expertise in financial innovation and global impact. This unique blend of operational experience, from nascent startups to established tech giants and mission-driven organizations, equips him with a comprehensive perspective on the challenges and opportunities faced by entrepreneurs.
Through Subtraction Capital, Jason Portnoy actively supports his portfolio companies beyond capital infusion. He acts as a trusted advisor, offering strategic insights on financial planning, operational scaling, market expansion, and team building. His hands-on approach and deep industry knowledge make him a valuable partner for founders navigating the complexities of early-stage growth. Jason Portnoy's dedication to fostering innovation and empowering entrepreneurs solidifies his reputation as a key figure in the venture capital ecosystem, continually seeking out the next wave of transformative technology.
Jason Portnoy is a Partner at Subtraction Capital, an early-stage venture capital firm. He is an experienced investor and operational leader known for his strategic insights in finance and technology, particularly in supporting innovative startups.
Jason Portnoy primarily invests in early-stage technology companies through Subtraction Capital. His investment focus areas include financial technology (fintech), enterprise software as a service (SaaS), and marketplace platforms, seeking companies with strong founders and disruptive potential.
Jason Portnoy works as a Partner at Subtraction Capital, an early-stage venture capital firm.
