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Technologies / DIDWW / OpenAI

Companies using DIDWW and OpenAI

9 companies in our data have public evidence for both DIDWW 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.

9companies use both
75%of DIDWW users
under 1%of OpenAI users
9name both as subprocessors

Companies using one are 5.4 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

CompanyDIDWWOpenAI
askdonna.comDonna is a voice-first AI assistant that helps field sales teams with conversation guides, note taking, CRM integration, reporting, and coaching.Sales
Calendiacalendia.orgCalendia provides booking, payment, and business management software for service businesses.Productivity and collaboration
Effiviseffivis.comEffivis provides websites, appointment booking and phone/WhatsApp attention, card and Bizum payment terminals, and custom automation, plus Zendesk implementation and development.Consulting and services
Hailhail.soHail gives AI assistants a phone number and email inbox so they can handle calls, texts, and email.AI and machine learningCommunications
Kreedlkreedl.comKreedl is an AI colleague that answers calls and messages from tenants, store teams and applicants, coordinates repairs with contractors and vendors, and follows up until the job is done.AI and machine learningReal estate
Ringostatringostat.comRingostat provides an AI-powered business phone and marketing performance platform that combines calls, chats, messengers and SMS with call tracking and analytics.CommunicationsData and analytics
Ringoverringover.esRingover provides a cloud communication platform with cloud telephony, call campaigns, virtual numbers, IVR, CRM and ATS integrations, and AI agents.CommunicationsSales
Ringoverringover.frRingover provides a cloud communication platform with cloud telephony, call campaigns, virtual numbers, IVR, CRM and ATS integrations, and AI agents.AI and machine learningCommunications
Sonetelsonetel.comSonetel sells business phone numbers that ring in its app or forward to a mobile or any phone worldwide.CommunicationsTelecom

The two technologies

DIDWW

Email and communications

DIDWW is a provider of global phone numbers, voice and SMS services for businesses. It is used for business telephony, including DID numbers, SIP trunking and business messaging.

Summarized from didww.com on 9 Nov 2026.

75% of the 12 companies we see using DIDWW also show the other.

All 12 companies using DIDWW11 name it as a subprocessorMore in Email and communications

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

Industries

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

Communications5Sales3AI and machine learning3

Other pairs

Companies with their own evidence for both.

More with DIDWW

Cloudflare12companiesAmazon Web Services9companiesTwilio8companiesElevenLabs7companiesGoogle Tag Manager6companiesGoogle Workspace6companies

More with OpenAI

Cloudflare3,266companiesGoogle Workspace2,462companiesAnthropic1,985companiesAmazon Web Services1,885companiesStripe1,637companiesGoogle1,540companies

Questions

How many companies use both DIDWW and OpenAI?

9 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 DIDWW and OpenAI?

askdonna.com, Calendia, Effivis, Hail and Kreedl, and 4 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses DIDWW 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 DIDWW 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