Marin Sonoma Impact Ventures

The firm explicitly targets startups headquartered in the North Bay region, primarily Marin and Sonoma counties. This geographic focus is the firm's defining structural thesis — using physical proximity to founders as a sourcing and diligence advantage while avoiding the hyper-competitive auction environment of San Francisco and Silicon Valley proper.

The firm writes pre-seed and seed-stage checks, often serving as the first institutional capital into a company. Its strategy revolves around high-conviction, early-entry positions where the firm can influence company-building fundamentals before a Series A institutional round.

The firm has not publicly disclosed its full partnership roster or investment committee structure. The available public record does not surface named managing partners or general partners, consistent with a firm still in the early chapters of its own formation and fundraising lifecycle.

The firm does not maintain a publicly accessible portfolio directory as of the latest available information. Detailed investment records — including named portfolio companies, check sizes, and co-investor syndicates — are not broadly distributed through the firm's website or public filings.

Its differentiation is purely geographic. The firm operates in Corte Madera, deliberately distanced from Sand Hill Road, and targets North Bay founders who often have exited larger Silicon Valley companies but no longer wish to build their next venture inside the Peninsula's fundraising ecosystem. The thesis is fundamentally a talent-and-valuation arbitrage on geography.