Roger Ehrenberg built his reputation through a concentrated reserve strategy at IA Ventures, typically backing 22-25 companies per fund but putting the majority of capital into 5-7 breakouts like The Trade Desk and Wise, then aggressively recycling early liquidity to drive 10x+ net returns. After stepping back from IA Ventures, he has evolved into a specialized sports and entertainment investor with minority ownership stakes in major franchises including the Miami Marlins, Real Salt Lake, and Alpine F1, while building a multigenerational family investment enterprise where he and his wife lent capital to their sons to invest alongside him.

• Deep interest in the intersection of sports, media, and entertainment. He actively looks for ventures in this space, evident in his enthusiasm for niche sports concepts like high-stakes par 3 golf leagues and his investments in basketball analytics technology.
• A strong commitment to the Detroit and Michigan startup ecosystem. He views the region as a place for long-term building rather than quick wins, frequently mentioning his intent to construct businesses there and his support for the city's gradual economic renaissance alongside his family members.
• Prioritizes long-term value creation over short-term ego. He advises founders to ignore immediate emotional reactions to unlock intrinsic value later, noting that short-term thinking acts as a tax on future potential, particularly for complex ideas that need time to mature.
• Appreciation for the nuances of fund economics and alignment with limited partners. He argues that management fees should be viewed as interest-free loans that the best investors repay through recycling capital, emphasizing that high fees are only justified by superior risk-adjusted returns.
• Interest in applying quantitative frameworks to traditional industries. For instance, he draws parallels between the historical evolution of programmatic advertising and the current potential for sponsorship markets to move away from manual matchmaking toward more automated, data-driven systems.