Rock River Capital Partners

Investment decisions are driven by Partners Andy Walker and Christopher Eckstrom. Walker is a serial entrepreneur with fifteen years of experience in data science strategy, analytics, and engineering. Eckstrom brings institutional investing experience as a former global hedge fund manager coupled with an investment banking and turnaround consulting background.

The firm focuses on the Midwest startup ecosystem, targeting founders who have already achieved initial product-market fit and are positioned for growth. Its sourcing emphasizes technical disruptors, often software-based, across industries. The website does not detail proprietary sourcing programs or university pipelines, describing an approach centered on regional entrepreneurial networks.

Rock River targets early-stage companies, ranging from seed to growth stage, that have initial product-market fit. The firm prefers to lead investment rounds and take a board seat, reserving significant follow-on capital to support portfolio companies in subsequent funding rounds. It partners with larger Midwest venture firms when companies are ready to graduate to later-stage institutional capital.

Rock River positions itself explicitly as a Midwest-based, early-stage venture firm and markets its focus on the 'New Midwest' opportunity. The firm's website does not reference investments or offices outside the region, signaling a concentrated geographic mandate centered on its Madison, Wisconsin headquarters.

Rock River states that it partners with some of the largest venture capitalists in the Midwest to help portfolio companies graduate to the next level of investment. While it prefers to be the lead investor and take a board seat in its initial commitment, the firm maintains ongoing relationships with larger regional VCs for co-investment and follow-on rounds.

No. Rock River does not publicly disclose assets under management, fund sizes, or total capital deployed. The firm's website makes no reference to current or historical fund vehicles, placing it outside the set of managers that voluntarily report AUM figures.

The firm blends operator and institutional investor DNA: one partner is a repeat technical founder with deep data-science expertise, while the other is a former global hedge fund manager. Rock River emphasizes founder-aligned deal terms, a commitment to lead rounds and occupy board seats, and a strategy of reserving capital for follow-on investments — all applied within an underserved Midwest geography.