Companies that use OpenAI ChatKit

Source: Analysis of Linkedin bios of 46 companies that use OpenAI ChatKit

I noticed that OpenAI ChatKit attracts an incredibly diverse range of companies across practically every industry imaginable. These aren't concentrated in tech or AI. Instead, I'm seeing water heater installers, stone dealers, jewelry retailers, outdoor kitchen manufacturers, farm equipment magazines, telecommunications brokers, and fitness platforms. What unites them is that they're all selling something tangible or providing concrete services, whether that's ERP software, lab equipment, luxury jewelry, or biochar carbon credits. Very few are pure software companies.

These companies span the entire spectrum of business maturity. I see several genuinely early-stage ventures in pre-seed or seed funding like Saleschat, Valorize Systems, and heyBoss.ai with under 10 employees. But I also see established businesses like Frontline Information Technology with 25 years of operation, DRF Water Heating Solutions with over 195,000 installations completed, and Zyte with 226 employees. Many fall into that middle category of 11-50 employees with no apparent VC funding, suggesting profitable small businesses rather than venture-backed startups.

Source: Analysis of tech stacks from 46 companies that use OpenAI ChatKit

I noticed that companies using OpenAI ChatKit are typically B2B SaaS companies in growth mode that are heavily focused on customer support and developer experience. The combination of Sentry, Retool, and HuggingFace tells me these are technical product companies building AI-powered features, while the presence of HubSpot tools indicates they're also investing seriously in go-to-market operations.

The pairing of Sentry and HuggingFace is particularly revealing. These companies aren't just using ChatKit out of the box, they're building custom AI implementations that need robust error tracking and model experimentation. The frequent use of Retool alongside ChatKit suggests they're building internal tools to manage and monitor their chat implementations, likely creating dashboards for support teams or admin panels for fine-tuning responses. Jira Service Desk appearing so often makes perfect sense because these companies are clearly support-intensive, probably using ChatKit to handle tier-one inquiries while routing complex issues to human agents.

The full stack reveals a product-led growth company that's reached a scaling inflection point. They have enough customer volume to justify investing in chat automation (hence ChatKit), but they're also sophisticated enough to need proper customer relationship management (HubSpot Marketing Hub and Conversations). The presence of both developer tools and marketing automation suggests a company with 50 to 200 employees that's moved beyond pure word-of-mouth growth but still maintains a technical, product-first culture.