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Technologies / Mailersend / OpenAI

Companies using Mailersend and OpenAI

11 companies in our data have public evidence for both Mailersend 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
39%of Mailersend users
under 1%of OpenAI users
9name both as subprocessors

Companies using one are 2.8 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

CompanyMailersendOpenAI
Askoliaaskolia.appAskolia provides AI search and an AI chat widget that answer visitors' questions from a website's own content, with handoff to a human team.AI and machine learningCustomer support
Curiositycuriosity.aiCuriosity builds internal software and AI agents from plain-language descriptions, grounded in a company's connected data and existing permissions.AI and machine learning
curiocuriosity.shCuriosity provides a command line tool called curio that connects to Curiosity Studio, giving users a two-panel terminal interface to edit, build, commit and approve workspace configuration files.Developer tools
GenieOSgenieos.proGenieOS turns one brief into an on-brand campaign with coordinated email, social posts and landing pages.Marketing
COUNTgetcount.comCOUNT provides automated accounting software that handles expenses, invoices, bills, time tracking, and reports.Finance and accounting software
iambogdaniambogdan.comBogdan Andronic is a full-stack developer and AI orchestrator who builds applications and the AI agents inside them, working in TypeScript with agents that use tools, memory, retrieval and evals.AI and machine learning
Kandirkandir.ioKandir provides AI agents that monitor sales accounts and flag changes such as job moves, competitor activity, and budget shifts.AI and machine learningSales
Le Poolle-pool.chLe Pool provides a platform for healthcare institutions to manage internal staff pools, publish assignments and coordinate replacements.HealthcareHR and recruiting
Schmeits websolutionsschmeits.comSchmeits builds custom software, websites and platforms, system integrations, and provides AI consultancy.Consulting and services
Add to CRMaddtocrm.comAdd to CRM is a Chrome extension that finds verified email addresses and phone numbers from LinkedIn, Gmail, and Outlook profiles and adds them to a connected CRM.Sales
AI Sales Assistantaisalesassistant.itAISA is an AI sales assistant that reads a website's content and product pages and shows products in chat with a buy button, and can open tickets, book appointments and query connected systems.AI and machine learningCustomer support

The two technologies

Mailersend

Email and communications

Mailersend is a transactional email API and SMTP service that lets developers send reliable email, SMS and WhatsApp messages from their applications. It is used to deliver critical messages such as order confirmations, notifications, password resets and one-time passcodes at scale.

Summarized from mailersend.com on 8 Nov 2026.

39% of the 28 companies we see using Mailersend also show the other.

All 28 companies using Mailersend26 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.

AI and machine learning5Customer support2Sales2

Other pairs

Companies with their own evidence for both.

More with Mailersend

Cloudflare28companiesStripe19companiesGoogle Workspace17companiesGoogle15companiesGoogle Analytics14companiesGoogle Tag Manager10companies

More with OpenAI

Cloudflare3,249companiesGoogle Workspace2,451companiesAnthropic1,975companiesAmazon Web Services1,878companiesStripe1,630companiesGoogle1,528companies

Questions

How many companies use both Mailersend 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 Mailersend and OpenAI?

Askolia, Curiosity, curio, GenieOS and COUNT, and 6 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Mailersend 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 Mailersend 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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