Case Study: PostHog improves retention with Harmonic

PostHog boosts retention with Harmonic using signals from 30 million companies

PostHog, a product analytics and developer platform, faced the challenge of identifying its high-momentum startup customers early enough to guide implementation and improve retention. In their product-led growth model, they risked engaging users too late, often only after problems had arisen. To solve this, they turned to vendor Harmonic for its startup firmographics and traction tracking capabilities.

Harmonic provided real-time signals of organizational growth, such as hiring velocity and fundraising activity, which were integrated directly into PostHog's CRM. This allowed their lean team to prioritize engagement based on growth inflection points rather than lagging revenue signals. As a result, PostHog dramatically improved customer retention, achieving a top-quartile retention rate by proactively guiding customers during phases of expansion.

PostHog