Companies that published a GPT in GPT Store

Source: Analysis of Linkedin bios of 1,697 companies that use OpenAI GPT Store

I noticed these companies fall into three distinct categories: AI-native toolmakers building productivity solutions (like AskYourPDF, Writesonic, and HIX.AI), traditional SaaS companies extending their platforms with GPT capabilities (like Tactiq, Descript, and Wix), and service providers packaging their expertise into GPT form (like educational writing services, marketing agencies, and consulting firms). The through-line is democratization – they're taking specialized knowledge or complex workflows and making them accessible through conversational interfaces.

The majority are micro-businesses and small startups. Of the companies, roughly 70% report fewer than 50 employees, and many show the "2-10" employee range with an actual count of 1-4 people. Only about 15 companies have raised formal funding, with most seed rounds under $5M. Yet I see some established players too, like MathWorks with 7,800+ employees and Wix post-IPO. The GPT Store appears to be an easy distribution channel for solo founders and small teams to test ideas without significant capital.

Source: Analysis of tech stacks from 1,697 companies that use OpenAI GPT Store

I noticed these companies are AI-first builders who treat their own products as platforms for partnership growth. The combination of ChatGPT Teams, multiple partner management tools like Rewardful and Partnerstack, and advanced AI development tools tells me these aren't casual GPT experimenters. They're companies building AI products commercially and using partner networks to distribute them.

The pairing of ChatGPT Teams with Rewardful and Partnerstack is particularly revealing. These companies are building on OpenAI's platform while simultaneously running affiliate and partner programs, which suggests they've created products valuable enough to warrant referral economies. The presence of Claude Code and AI coding agents alongside ChatGPT Teams shows they're multi-platform developers who hedge their bets across different AI providers rather than committing to just one ecosystem.

What strikes me most is the MCP correlation. This is a newer, more technical protocol that signals these companies are building sophisticated integrations, not just simple chatbot wrappers. Combined with the coding agents, I see engineering-heavy teams automating their own development workflows while building for others. This stack suggests product-led growth companies in early to mid-stage, likely post-product-market-fit. They've proven their GPT has value and are now scaling distribution through partners rather than traditional sales teams.