feature-flags
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The French Startup That Turned "Just Test It" Into a Global Experiment
For sixteen years AB Tasty sold brands a simple idea: stop arguing about what works on your website and test it. In January 2026 it merged with its biggest rival to prove the point at scale.
Frontegg
Frontegg is a customer identity and access management (CIAM) platform that gives SaaS builders drop-in authentication, authorization, and user management so they don't have to build login, SSO, MFA, roles, and multi-tenancy from scratch. Founded in 2019 by two former Check Point engineers, the company has expanded from B2B user management into identity infrastructure for AI agents, launching Frontegg.ai and AgentLink to secure how AI systems and the Model Context Protocol access enterprise applications.
PostHog
PostHog is an all-in-one, open-source developer platform that bundles product analytics, web analytics, session replay, feature flags, A/B testing, experiments, surveys, error tracking, a customer data platform, and a data warehouse into a single stack engineers can self-host or run in the cloud. Founded in 2020 by James Hawkins and Tim Glaser through Y Combinator, it lets product engineers track usage, ship features, and keep customer data in one place rather than stitching together a dozen SaaS tools. The company reached unicorn status in 2025 with a $75M Series E at a $1.4B valuation.
LaunchDarkly
LaunchDarkly is a feature management platform that lets software teams release, target, and measure code changes behind feature flags. Founded in 2014 in Oakland by Edith Harbaugh and John Kodumal, the company turned the homegrown 'if/else' toggle into an enterprise control plane used by more than 2,000 customers including Atlassian, IBM, Square, NBC, and Ryanair.