Venture Capital

We investigate a novel channel of venture capital value creation: the practices through which startups build and maintain their technology. We construct a new panel of 569 firms using 60,000 full codebase snapshots. We compare changes in engineering quality following first VC investment with changes at similar firms that remain without VC backing. We also construct a dollar-denominated measure of technical debt, the estimated maintenance liability embedded in software. Relative to codebase size, serious deviations from coding best practices decline by 15% and technical debt by 12%. These improvements accompany substantial codebase growth. The decline in the frequency of serious coding problems persists after matching on pre-financing growth, and quality gains extend to firms already generating revenue. In contrast, a placebo test around later financing rounds shows no evidence of quality improvement. We also analyze 4.8 million code contributions (commits). After first VC investment, documented peer review and formal issue tracking become more common, off-hours work declines, and existing team members become less likely to introduce defective code. The findings suggest that VC professionalization extends to the engineering practices through which teams build and maintain their products.