Clearbit employs a sophisticated lead qualification system comprised of two interconnected stacks managed by the RevOps and growth teams. The RevOps stack, centered on Salesforce, integrates various tools for lead scoring, routing, and data enrichment, such as Segment, Tray.io, LeanData, MadKudu, Chili Piper, and Clearbit itself, to ensure efficient processing and routing of leads to sales or marketing sequences. Meanwhile, the growth stack utilizes Redshift as a data warehouse to store and transform lead and customer data, which is then synced to Salesforce and other tools using dbt and Census, allowing for personalized marketing and sales outreach. This custom-built system, despite its complexity, affords Clearbit greater flexibility and data tracking capabilities than an out-of-the-box marketing automation platform, supported by a dedicated RevOps team and marketing analyst.