Mosley Ventures

Sig Mosley serves as the managing partner and sole decision-maker. He brings over thirty years of early-stage technology investing experience in the Southeast, previously deploying capital through Imlay Investments alongside John Imlay. His track record includes early backing of Internet Security Systems, SecureWorks, and Lancope before they were acquired by IBM, Dell, and Cisco respectively.

The firm targets seed and early-stage rounds in B2B software, cybersecurity, and health IT companies. Typical initial check sizes range from $500,000 to $2 million. The portfolio reflects Sig Mosley's domain expertise in enterprise technology and his preference for founder teams with deep technical backgrounds.

Deal flow is heavily relationship-driven, built on Sig Mosley's network as a co-founder of the Atlanta Technology Angels and his decades of angel investing. A substantial portion of opportunities arrive through referrals from existing portfolio company founders and the dense operator community he has cultivated since the 1990s Atlanta tech boom.

Mosley Ventures operates as a traditional venture capital firm, not a family office. It manages committed capital from external limited partners within a seed-stage fund structure. The firm does not manage a single family's wealth, though decision-making authority resides with Sig Mosley as the sole managing partner.

Atlanta is the firm's primary market, with additional exposure across the broader Southeast including the Research Triangle of North Carolina and Nashville. The investment thesis is built on the premise that the region's engineering talent pool and lower operating costs generate venture-scale returns without the entry price premiums of Silicon Valley or New York.

The firm is comfortable leading seed rounds but frequently co-invests alongside angel syndicates and other early-stage funds. Sig Mosley's operating history and reputation often position Mosley Ventures as the institutional anchor that signals validation to other investors considering a first commitment to a Southeastern startup.

Sig Mosley built his reputation as the most active angel investor in the Southeastern United States through Imlay Investments, the firm he ran with MSA founder John Imlay. Before his investment career, Mosley held operating roles in the Atlanta technology sector. His portfolio companies have produced exits to IBM, Dell, Cisco, and other enterprise acquirers, establishing his track record as a seed-stage investor in enterprise technology.