Heath Barnett

Heath Barnett is the Founder of Built GTM, where he helps revenue teams build offense-first systems that scale from early traction to $100 million and beyond. Before launching Built GTM, he served as VP of Revenue at Mixmax, where he built the go-to-market playbook around signal-led selling, turning scattered buyer signals into clear, timely outreach. He created the PLAN Selling Framework, a buyer-centric methodology designed to cut through sales noise, and he hosted Mixology by Mixmax, a show built around practical GTM strategy.

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Heath's career spans Uber, Notch, and Mixmax, giving him a rare view across scrappy startups and hypergrowth scale ups. At Uber Eats, he built the Texas sales hub from scratch, leading more than 150 account executives and managers past their revenue goals. At Notch, he shifted the business from marketplace to SaaS and rebuilt its go-to-market motion end to end. He now advises GTM teams on revenue operations and AI-enabled selling, and he shows the Sell Better audience how to build a revenue engine that runs on process, not luck.