Harmonic is a leading platform in the startup ecosystem, providing a data engine that maintains up-to-date information on over 15 million companies and 110 million professional profiles. This enables businesses and investors to stay informed about significant developments, such as funding rounds, key hires, and social media milestones. Harmonic's technology also integrates seamlessly with various systems, including CRM, Airtable, and data warehouses, saving users valuable time on sourcing and data entry, and making it a preferred choice for top-tier firms like Brex, Greylock, and MongoDB.