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Companies / TheirStack

TheirStack tech stack

theirstack.com

TheirStack provides data on companies' technology usage, hiring activity and buying intent derived from job postings. It serves sales and marketing teams.

Summarized from its homepage on 8 Nov 2026.

Classified asSales

The TheirStack homepage

Vendors of TheirStack and the evidence for each

TheirStack declares 16 subprocessors, including AI providers OpenAI.

VendorCategoryEvidenceLevel
CloudflareCloud and infrastructureConfirmed
Subprocessor listNamed as Cloudflare, Inc. · Processes data for the company8 Nov 2026Source
Websiteheader: cf-ray: a5744f7b6d37d021-SJC8 Nov 2026Source
Companies using Cloudflare
VercelCloud and infrastructureConfirmed
Subprocessor listNamed as Vercel Inc. · Processes data for the company8 Nov 2026Source
Websiteheader: x-vercel-id: sfo1::lzhfz-1794138106145-710d68c86f608 Nov 2026Source
Companies using Vercel
Amazon Web ServicesCloud and infrastructureConfirmed
Subprocessor listNamed as Amazon Web Services, Inc. · Processes data for the company8 Nov 2026Source
Companies using Amazon Web Services
BrevoEmail and communicationsConfirmed
Subprocessor listProcesses data for the company8 Nov 2026Source
Companies using Brevo
ClickHouseDataConfirmed
Subprocessor listNamed as ClickHouse, Inc. · Processes data for the company8 Nov 2026Source
Companies using ClickHouse
GrafanaObservabilityConfirmed
Subprocessor listNamed as Grafana Labs Inc. · Processes data for the company8 Nov 2026Source
Companies using Grafana
HerokuCloud and infrastructureConfirmed
Subprocessor listProcesses data for the company8 Nov 2026Source
Companies using Heroku
KindeSecurity and identityConfirmed
Subprocessor listNamed as Kinde Inc. · Processes data for the company8 Nov 2026Source
Companies using Kinde
LoopsEmail and communicationsConfirmed
Subprocessor listNamed as Loops.io · Processes data for the company8 Nov 2026Source
Companies using Loops
OpenAIAI and LLM providersConfirmed
Subprocessor listNamed as OpenAI, Inc. · Processes data for the company8 Nov 2026Source
Companies using OpenAI

9 more vendors

See TheirStack's full stack and the source for every claim.

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Questions about TheirStack

Does TheirStack use OpenAI?

Vendor's own statement, retrieved from the source URL on the date shown. StrataDB does not verify the underlying claim. Data sources.

See TheirStack's full stack

Every vendor with its source and date, and an alert when TheirStack adds or drops one. The same lookup works for any company.

  • 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