I propose a new measure of venture capital (VC) firm reputation and analyze its performance implications on private companies. Controlling for portfolio company quality and other VC-specific factors including experience, connectedness, syndication, industry competition, exit conditions, and investment environment, I find companies backed by more reputable VCs by initial public offering (IPO) capitalization share (based on cumulative market capitalization of IPCs backed by the VC), are more likely to exit successfully, access public markets faster, and have higher asset productivity at IPOs. Further tests suggest VCs' IPO Capitalization share effectively captures both VC screening and monitoring expertise. My findings have financial implications for limited partners and entrepreneurs regarding their VC-sorting activities. (C) 2008 Elsevier B.V. All rights reserved.