LAUNCHDARKLY

Edith Harbaugh was a product manager who kept watching engineering teams struggle with releases. Shipping new code was terrifying — one bad feature could crash everything.

What if you could separate deploying code from releasing features? In 2014, she co-founded LaunchDarkly with John Kodumal to build feature management infrastructure.

Feature flags let engineers wrap new features in toggles that can be turned on/off independently of code deployment.

SaaS subscriptions. Companies pay based on the number of developers using the platform and the volume of feature flag evaluations.

Pricing starts at $10/month for small teams and scales to six-figure enterprise contracts. The product is sticky — once feature flags are embedded in code, ripping them out is painful.

Feature Flags — toggle features on/off for specific users, segments, or percentages. Progressive Rollouts — gradually release features to increasing percentages of users.

Experimentation — A/B testing tied to feature flags. Feature Workflows — approval processes and scheduling for flag changes.

Developer-led adoption. Engineers at one team would start using LaunchDarkly, then it would spread across the organization.

The "land and expand" motion worked perfectly because feature flags solve a universal engineering pain point. Enterprise sales followed as CTOs realized their teams were already using it.

Feature flags are becoming a commodity. GitHub, GitLab, and cloud providers (AWS, Vercel) are adding basic feature flag capabilities.

LaunchDarkly needs to stay ahead by offering enterprise-grade features (targeting, experimentation, governance) that free alternatives can't match.

Bessemer Venture Partners led the Series D at a $3 billion valuation. Other investors include Vertex Ventures, Bloomberg Beta, DFJ Growth, and various developer-focused VCs.