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Technologies / ChatGPT / OpenAI

Companies using ChatGPT and OpenAI

23 companies in our data have public evidence for both ChatGPT and OpenAI, and 2 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.

23companies use both
37%of ChatGPT users
1%of OpenAI users
2name both as subprocessors

Companies using one are 2.7 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

CompanyChatGPTOpenAI
Onitonit.comOnit provides AI-powered enterprise legal management software for managing legal spend, matters, contracts, and workflows.Legal
Simple Analyticssimpleanalytics.comSimple Analytics provides cookieless web analytics that measure pageviews, events, referrers, and campaign data without cookies or visitor IDs.Data and analytics
Citations.ioCitations.io tracks whether and how AI search engines like ChatGPT, Gemini, Perplexity and Claude mention a brand, and provides a monthly Implementation Pack of steps to get cited more often.AI and machine learningMarketing
Eulexeulex.aiEulex provides an AI system for navigating European regulation and staying compliant, including a legal research workstation and a regulatory database connected to AI assistants.AI and machine learningCompliance and risk
Hirevirehirevire.comHirevire provides one-way video interviews for screening candidates.HR and recruiting
IQRushiqrush.aiIQRush measures how a brand appears in AI search, verifies the results, and creates recommendations to improve visibility.AI and machine learningData and analytics
Octolane AIoctolane.comOctolane provides an AI agent that learns from a revenue team's decisions and proposes actions on every account for human approval.AI and machine learningSales
AveryIQaveryiq.comAvery is an assistant that helps turn leads into clients.Real estate
CampaignStackcampaignstack.ioCampaignStack finds leads, writes to them in your voice, books meetings and provides a brief before the call.Sales
CasEnginecasengine.appCasEngine provides legal practice management software that combines case, client, document, time and billing records with an AI workspace that reads case documents into cited chronologies and party maps.Legal
Corebeecorebee.aiCorebee is an AI customer support agent that answers customers on multiple channels and takes actions such as rescheduling appointments, processing refunds, and booking visits.AI and machine learningCustomer support
Emotional Pulseemotionalpulse.aiEmotional Pulse provides a proactive EAP with scheduled check-in calls, mental health training and a daily check-in app.Compliance and riskHR and recruiting
Habiatahabiata.luHabiata is an AI platform for real estate agencies that handles calls, texts, emails, listings, contracts and photo staging.AI and machine learningReal estate
Incontrolincontrol.appIncontrol provides a platform with inspection templates for norm-based inspections of installations and buildings, and automatically updates those templates when norms change.
BOBjoinbob.aiBOB is an AI agent that handles business finance work such as books, invoices, estimates and follow-ups, connecting to the accounting, invoicing and estimating tools a business already uses.AI and machine learningFinance and accounting software
Junglerjungler.aiJungler tracks who likes and comments on social profiles and turns those engagers into enriched leads delivered to tools like Clay or Slack.Sales
ListPluslistplus.aiListPlus helps CRM teams, RevOps and GTM engineers find B2B leads and check and enrich contact data.Sales
Livestormlivestorm.coLivestorm provides a browser-based platform for hosting webinars, virtual events, and on-demand or automated webinars.Communications
MarketplaceHubmarketplacehub.comMarketplaceHub is a multi-channel management application that lets retailers and brands manage their listings, inventory and orders across marketplaces from one app.E-commerceRetail
Nova Analyticsnovadata.ioNova provides Amazon seller and vendor analytics covering sales, profit and loss, advertising, inventory, catalogue and search query performance.Data and analyticsE-commerce
Paymobpaymob.comPaymob provides tools to accept payments online, in-store, and on the go, including checkout, payment links, subscriptions, in-store POS, payouts, and bill payments.FintechPayments
Pomousepomo.aiPomo monitors market trends, competitor activity, and AI search results, then drafts and launches ads, social posts, and PR for user approval.AI and machine learningMarketing
Zerniozernio.comZernio provides a single API that lets products and agents publish posts, send messages, run ads, and read analytics across social, blog, messaging, voice, and ad platforms.Developer tools

The two technologies

ChatGPT

AI and LLM providers

ChatGPT is AI. It is used to chat and get responses.

Summarized from chatgpt.com on 8 Nov 2026.

37% of the 62 companies we see using ChatGPT also show the other.

All 62 companies using ChatGPT10 name it as a subprocessorMore in AI and LLM providers

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.

1% of the 3,264 companies we see using OpenAI also show the other.

All 3,264 companies using OpenAI2,507 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 learning8Sales4Legal3Data and analytics3Marketing3Compliance and risk2HR and recruiting2Real estate2Fintech2E-commerce2

Other pairs

Companies with their own evidence for both.

More with ChatGPT

Cloudflare62companiesAnthropic48companiesGoogle Workspace39companiesAmazon Web Services26companiesGoogle Analytics26companiesGoogle25companies

More with OpenAI

Cloudflare3,264companiesGoogle Workspace2,460companiesAnthropic1,983companiesAmazon Web Services1,884companiesStripe1,636companiesGoogle1,538companies

Questions

How many companies use both ChatGPT and OpenAI?

23 companies in StrataDB's data have public evidence for both, and 2 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 ChatGPT and OpenAI?

Onit, Simple Analytics, Citations.io, Eulex and Hirevire, and 18 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses ChatGPT 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 ChatGPT 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.

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