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Technologies / Autumn / OpenAI

Companies using Autumn and OpenAI

11 companies in our data have public evidence for both Autumn and OpenAI, and 9 name both in their own subprocessor list. Each company below links to the source for every claim. Our coverage is partial, so this is not everyone.

11companies use both
69%of Autumn users
under 1%of OpenAI users
9name both as subprocessors

Companies using one are 4.9 times as likely as the average company in our data to show evidence of the other.

The companies

Strongest evidence first: a company naming both in its own subprocessor list comes before one seen on its website or in job postings.

Subprocessor listPrivacy policyWebsiteJob postings

CompanyAutumnOpenAI
Choruschorus.comChorus provides AI agents that perform marketing and other business tasks, communicating through apps like iMessage, Slack, and WhatsApp.AI and machine learningProductivity and collaboration
Databuddydatabuddy.ccDatabuddy provides product analytics that track visitors, signups, funnels, and revenue in one place, along with error tracking, Web Vitals, feature flags, and an AI analyst.Data and analyticsDeveloper tools
First Concepts Creativefirstconcepts.coFirst Concepts provides a workspace for turning briefs into creative concepts, scripts, storyboards and video using AI models.AI and machine learningDesign and creative
Golemrygolemry.comGolemry runs scheduled or triggered jobs in a cloud sandbox with access limited to the tools each job needs, and an overseer checks every result.AI and machine learningProductivity and collaboration
HelixDBhelix-db.comHelixDB is an open-source graph database with native vector and full-text search, built in Rust on object storage.AI and machine learningDeveloper tools
Mastramastra.aiMastra is a TypeScript agent framework for building, observing, and improving AI agents.AI and machine learningDeveloper tools
RevisionDojorevisiondojo.comRevisionDojo provides IB exam-style questions, notes, cheatsheets, videos, and AI study tools.Education
Runablerunable.comRunable is an AI agent that helps users build websites, run tasks, and grow a business.AI and machine learningProductivity and collaboration
Notrausenotra.comNotra is a GEO tool that asks ChatGPT, Claude and Gemini the questions buyers ask and shows whether a brand appears in the answers, who appears instead, and how to fix it.AI and machine learningMarketing
BromeAIbrome.aiBrome provides a single workspace that combines multiple AI models and routes each question to a suitable model.AI and machine learning
Wafflewaffle.aiWaffle makes AI-generated videos featuring AI creators, which brands can use to research what sells, produce short-form video, and post it across TikTok, Instagram, YouTube and LinkedIn.AI and machine learning

The two technologies

Autumn

Payments

69% of the 16 companies we see using Autumn also show the other.

All 16 companies using Autumn13 name it as a subprocessorMore in Payments

OpenAI

AI and LLM providers

OpenAI is a platform that provides an API for building with OpenAI models. It is used to access models, tools, and services for tasks such as text generation, image generation, audio, and agents.

Summarized from developers.openai.com on 8 Nov 2026.

under 1% of the 3,304 companies we see using OpenAI also show the other.

All 3,304 companies using OpenAI2,530 name it as a subprocessorMore in AI and LLM providers

Industries

Among the companies above, by our own classification of their homepage.

AI and machine learning9Productivity and collaboration3Developer tools3

Other pairs

Companies with their own evidence for both.

More with Autumn

Cloudflare16companiesStripe16companiesGoogle Workspace14companiesPostHog14companiesVercel14companiesAnthropic11companies

More with OpenAI

Cloudflare3,285companiesGoogle Workspace2,478companiesAnthropic1,997companiesAmazon Web Services1,889companiesStripe1,650companiesGoogle1,551companies

Questions

How many companies use both Autumn and OpenAI?

11 companies in StrataDB's data have public evidence for both, and 9 of them name both in their own subprocessor list, the strongest evidence we hold. Our coverage is partial, so the real number is higher.

Which companies use Autumn and OpenAI?

Chorus, Databuddy, First Concepts Creative, Golemry and HelixDB, and 6 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Autumn and OpenAI?

From four kinds of public evidence: subprocessor lists, privacy policies, website code and job postings. Each is kept apart with its source and the date we saw it. A company missing here means we found no evidence, not that it does not use them.

Find every company using Autumn and OpenAI

See the full list with the source for each company, and run the same lookup for any technology from the API, Claude or your browser.

  • Every company and vendor, with its public source
  • 100 API calls a month, plus MCP and the Chrome extension
  • Work email only. No card, no sales call