Walker Sands

The firm sources primarily through its agency client relationships, which give it early visibility into several hundred B2B technology companies across SaaS, cybersecurity, cloud infrastructure, and AI sectors. Because Walker Sands provides marketing and demand-generation services to these companies, it gains operational insight into growth metrics, product-market fit, and management quality before committing capital. This pipeline is proprietary and difficult for traditional venture firms to replicate.

Walker Sands funds its venture activity from its own services revenue, not from committed outside limited partners. The agency was bootstrapped from founding and has remained privately held, which means its investment decisions are not constrained by fund timelines or LP redemption pressures. That internal funding model gives the firm flexibility to hold positions for indefinite periods.

The firm invests primarily at the early stage within B2B technology, with a focus on enterprise software, cybersecurity, AI and machine learning, cloud infrastructure, and fintech. Its typical entry point is at seed or Series A rounds for companies that are already operating in sectors where the agency has deep domain expertise from its client work.

Walker Sands is not a family office. It is a hybrid structure: an integrated B2B marketing agency that also operates a venture investment practice. Founder and CEO Mike Santoro controls the firm, which uses services-generated profits rather than family wealth or outside LP commitments to fund its equity investments. The architecture more closely resembles a permanent-capital vehicle than either a family office or a traditional venture fund.

Walker Sands combines a venture balance sheet with an operating B2B marketing agency that serves over 100 technology clients. That dual structure provides proprietary deal flow sourced through client engagements, as well as a built-in demand-generation engine for portfolio companies. The agency relationship often predates the investment, meaning the firm has already validated a startup's go-to-market execution before writing a check.