Karl Antle

Co-founder and General Partner @Valuestream Ventures

San Francisco, CA, US

General Partner at ValueStream Ventures, a venture capital firm investing in technology and data-driven businesses that address complex, high stakes problems for large enterprises. I have led and participated in investments across a broad range of sectors, including enterprise software, data and infrastructure platforms, financial services, insurance, fraud and identity, and vertical SaaS.I am a member of the firm’s Investment Committee and am actively involved in underwriting new investments, portfolio construction, and fund-level strategy, including investment pacing, capital allocation, and structural decision-making. Across the portfolio, I have primary responsibility for evaluating risk, stress-testing assumptions, and assessing how decision frameworks, models, and operating discipline translate into long-term economic outcomes.I work closely with founders and leadership teams as an active board member and advisor, often during periods of strategic inflection, capital allocation pressure, or operational complexity. My engagement frequently extends beyond governance into partnering with management on operating model design, pricing and unit economics, scaling decisions, and navigating second order effects as businesses mature.I have supported founders and boards through the full company lifecycle, including strategic transactions and liquidity events, and am most effective in environments where clear judgment, disciplined risk taking, and alignment between growth objectives and economic reality are critical.