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Technologies / OpenAI / Porter Technologies

Companies using OpenAI and Porter Technologies

8 companies in our data have public evidence for both OpenAI and Porter Technologies, and 6 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.

8companies use both
under 1%of OpenAI users
89%of Porter Technologies users
6name both as subprocessors

Companies using one are 6.4 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

CompanyOpenAIPorter Technologies
Context.devContext.dev provides an API for AI agents and LLM apps to scrape, search, monitor, and collect data from the web.AI and machine learningDeveloper tools
End Closeendclose.comEnd Close provides automated payment reconciliation software that matches transactions and resolves exceptions.Finance and accounting softwareFintech
Featherfeatherhq.com
Ionworksionworks.comIonworks provides a battery data and simulation platform that turns test data into validated physics-based models.Energy and climate
Onboard.ioOnboard provides customer onboarding software with dashboards, a customer portal, document signing, and integrations.
Ontoraontora.comOntora provides AI transformation services that include process discovery, prioritised roadmaps, and targeted AI implementation with measurement of return.AI and machine learningConsulting and services
Writesonicwritesonic.comWritesonic tracks where brands appear in AI search answers and fixes content, citations, and technical issues to improve that visibility.AI and machine learningMarketing
Arcadearcade.devArcade provides an actions runtime that enforces, executes, and governs every action between AI agents and the systems they reach.AI and machine learningDeveloper tools

The two technologies

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 3,264 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

Porter Technologies

Cloud and infrastructure

89% of the 9 companies we see using Porter Technologies also show the other.

All 9 companies using Porter Technologies8 name it as a subprocessorMore in Cloud and infrastructure

Industries

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

AI and machine learning4Developer tools2

Other pairs

Companies with their own evidence for both.

More with OpenAI

Cloudflare3,248companiesGoogle Workspace2,449companiesAnthropic1,973companiesAmazon Web Services1,877companiesStripe1,629companiesGoogle1,528companies

More with Porter Technologies

Cloudflare9companiesGoogle Workspace9companiesAmazon Web Services7companiesPostHog6companiesStripe6companiesVercel6companies

Questions

How many companies use both OpenAI and Porter Technologies?

8 companies in StrataDB's data have public evidence for both, and 6 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 OpenAI and Porter Technologies?

Context.dev, End Close, Feather, Ionworks and Onboard.io, and 3 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses OpenAI and Porter Technologies?

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 OpenAI and Porter Technologies

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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