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Technologies / OpenAI / Pydantic

Companies using OpenAI and Pydantic

12 companies in our data have public evidence for both OpenAI and Pydantic, and 12 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.

12companies use both
under 1%of OpenAI users
80%of Pydantic users
12name both as subprocessors

Companies using one are 5.7 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

CompanyOpenAIPydantic
Accountableaccountable.deFinance and accounting software
Demadema.aiDema connects a company's website data with stock, ads, orders, costs and returns in one commerce model.E-commerce
Falconfalcon.lawFalcon is an AI law firm that reviews commercial contracts, with AI preparing the first review and a qualified lawyer signing off.Legal
FurtherAIfurtherai.comFurtherAI provides domain-specific AI that automates busywork in insurance workflows such as submissions, policies, audits, and claims.AI and machine learningInsurance
LightTablelighttable.aiLightTable uses AI to review construction documents for errors, omissions, and coordination issues before construction begins.Construction
Oneleetoneleet.comOneleet provides a cybersecurity and compliance platform that combines security tools such as penetration testing, code scanning, and device management with compliance support for frameworks including SOC 2, ISO 27001, GDPR, and HIPAA.Compliance and riskCybersecurity
Orbio AIorbioai.coOrbio AI provides AI agents that handle employee screening, scheduling, onboarding and exit interviews by phone, text, WhatsApp and Teams.AI and machine learningHR and recruiting
Pharosynpharosyn.aiPharosyn provides AI-powered competitive intelligence monitoring and congress coverage for pharmaceutical companies.AI and machine learningBiotech and life sciences
Polarpolar.shPolar provides usage-based billing software that meters events, charges customers, and tracks unit economics.
Shapesshapes.coShapes is an HR platform that brings people processes such as employee data, performance, time off, attendance, surveys, compensation and documents into one place, with AI agents handling admin.HR and recruiting
Swantideswantide.comSwantide provides an agentic platform for building, maintaining, and optimizing Salesforce and other enterprise applications.AI and machine learning
swap-commerce.comSwap provides commerce services including shipping, cross-border duties and tax handling, returns, and AI shopping and customer support agents.E-commerce

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 3,304 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

Pydantic Validation is data validation from Python type hints. It is used to parse, validate, and serialize data.

Summarized from pydantic.dev on 8 Nov 2026.

80% of the 15 companies we see using Pydantic also show the other.

All 15 companies using Pydantic15 name it as a subprocessor

Industries

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

AI and machine learning4E-commerce2HR and recruiting2

Other pairs

Companies with their own evidence for both.

More with OpenAI

Cloudflare3,288companiesGoogle Workspace2,480companiesAnthropic1,998companiesAmazon Web Services1,890companiesStripe1,652companiesGoogle1,552companies

More with Pydantic

Cloudflare15companiesGoogle Workspace13companiesAmazon Web Services12companiesAnthropic11companiesNext.js9companiesSentry9companies

Questions

How many companies use both OpenAI and Pydantic?

12 companies in StrataDB's data have public evidence for both, and 12 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 Pydantic?

Accountable, Dema, Falcon, FurtherAI and LightTable, and 7 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses OpenAI and Pydantic?

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 Pydantic

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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