Promega's CEO mandated ChatGPT. 1,400 custom GPTs later, it's saving 600 hours a year.

Most enterprise AI stories follow a predictable arc: a cautious pilot, a lengthy ROI review, and a rollout that lands with a thud. Promega flipped that script entirely. CEO Bill Linton saw ChatGPT, grasped its potential immediately, and told his 60,000-account, 4,000-product life sciences company to get on with it. The result isn’t a tentative experiment but a full-throttle integration where 80% of the workforce now uses over 1,400 custom-built GPTs.

Linton’s top-down edict wasn’t about blindly chasing hype. He framed the tool as a force multiplier for his people’s existing talent, calling it a coach or an extra set of hands. That vision cascaded into real numbers. In Quality Assurance, a custom GPT integrated with Power Automate now handles more than 250 customer surveys annually, slashing internal workload by over 600 hours. The tool delivers certifications and quality policies automatically, freeing up humans for work that requires actual judgment.

Similar efficiency gains are popping up across the org chart. Account Manager Franchestia Flennory uses a prospecting GPT that cuts lead analysis time by one to four hours per prospect by surfacing research initiatives and even personal commonalities to spark a natural conversation. On the marketing side, Kari Siegenthaler’s Email Marketing Strategist GPT has halved the time from content creation to campaign launch, saving 135 hours of work in just a few months. Siegenthaler’s admission that she can’t remember the last time she wrote an email without the GPT is less a tech flex and more a statement about how quickly a well-fitting tool becomes invisible infrastructure.

What’s genuinely instructive here isn’t the tech—it’s the governance. Promega credits its AI Advisory Council, a cross-departmental group of senior leaders, with keeping the rollout from becoming a chaotic free-for-all. They tracked enterprise usage to identify high-impact use cases, poured resources into what worked, and made learning deliberately fun with workshops. Crucially, they weaponized internal data to crush skepticism, proving that even employees using basic prompts consistently outperformed those who avoided the tool. Linton’s mandate set the tone, but it was proving the tool’s value at a granular, departmental level that made it stick.