# What does WorkOS, Inc. use? WorkOS, Inc. (workos.com) shows public evidence of 43 tools, according to runsonwhat (last checked 2026-10-20). - Based in: San Francisco, United States - Founded: 2019 - LinkedIn: https://www.linkedin.com/company/workos-inc ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS verification records, DNS records, Email records, Website code | | | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Custom domain | 2020-02 | | [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | DNS verification records | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records | | | [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | DNS verification records, Website code | | | [MCP Registry](https://www.runsonwhat.com/reverse/mcp-registry) | AI | DNS verification records | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code | | | [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code | | | [Atlassian Statuspage](https://www.runsonwhat.com/reverse/statuspage) | Monitoring | Custom domain | 2019-06 | | [Segment](https://www.runsonwhat.com/reverse/segment) | Analytics | DNS verification records, Website code | | | [LaunchDarkly](https://www.runsonwhat.com/reverse/launchdarkly) | Flags & Experiments | DNS verification records | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | DNS verification records, Website code | | | [Webflow](https://www.runsonwhat.com/reverse/webflow) | Website & CMS | Website code | | | [X Ads](https://www.runsonwhat.com/reverse/x-ads) | Ads & Pixels | Website code | | | [Reddit Ads](https://www.runsonwhat.com/reverse/reddit-ads) | Ads & Pixels | Website code | | | [Apollo.io](https://www.runsonwhat.com/reverse/apollo) | Sales & CRM | Custom domain | 2026-08 | | [Dub](https://www.runsonwhat.com/reverse/dub) | Marketing | Custom domain | 2022 | | [Unify](https://www.runsonwhat.com/reverse/unify) | Sales & CRM | Website code | | | [Default](https://www.runsonwhat.com/reverse/default) | Sales & CRM | DNS verification records | | | [Plain](https://www.runsonwhat.com/reverse/plain) | Support & Docs | DNS verification records | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records | | | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [Resend](https://www.runsonwhat.com/reverse/resend) | Email Delivery | Email records | | | [Zoom](https://www.runsonwhat.com/reverse/zoom) | Collaboration | DNS verification records | | | [Slack](https://www.runsonwhat.com/reverse/slack) | Collaboration | DNS verification records | | | [Cursor](https://www.runsonwhat.com/reverse/cursor) | Dev Tools | DNS verification records | | | [Figma](https://www.runsonwhat.com/reverse/figma) | Collaboration | DNS verification records | | | [Rippling](https://www.runsonwhat.com/reverse/rippling) | People & HR | DNS verification records | | | [Postman](https://www.runsonwhat.com/reverse/postman) | Dev Tools | DNS verification records | | | [Vanta](https://www.runsonwhat.com/reverse/vanta) | Security & Compliance | Custom domain | 2025-11 | | [Zapier](https://www.runsonwhat.com/reverse/zapier) | Dev Tools | DNS verification records | | | [Linear](https://www.runsonwhat.com/reverse/linear) | Dev Tools | DNS verification records | | | [HashiCorp Cloud](https://www.runsonwhat.com/reverse/hashicorp) | Dev Tools | DNS verification records | | | [Maven Central](https://www.runsonwhat.com/reverse/maven-central) | Dev Tools | DNS verification records | | | [Serval](https://www.runsonwhat.com/reverse/serval) | Dev Tools | DNS verification records | | ## FAQ ### What tools does WorkOS use? As of October 2026, runsonwhat has found 43 tools at WorkOS (workos.com) in public records. Edge & Hosting: Cloudflare, Amazon CloudFront and Vercel. Application: jQuery, Anthropic and OpenAI. Data & Observability: Google Analytics, Google Tag Manager and Atlassian Statuspage. Go-to-market: Google Ads, LinkedIn Insight Tag and HubSpot. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 20, 2026. ### What cloud does WorkOS run on? WorkOS uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through a DNS verification record for Vercel. Vercel is used by 47,859 companies runsonwhat tracks. ### What CRM does WorkOS use? WorkOS uses HubSpot for its CRM, alongside Apollo.io, Unify and Default, according to runsonwhat (October 2026). runsonwhat found HubSpot through a DNS verification record for HubSpot and code on workos.com. HubSpot is used by 93,606 companies runsonwhat tracks. ### What email provider does WorkOS use? WorkOS uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 709,020 companies runsonwhat tracks. ### What does WorkOS use for customer support? WorkOS uses Plain for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Plain through a DNS verification record for Plain. Plain is used by 74 companies runsonwhat tracks. ### What payment provider does WorkOS use? WorkOS uses Stripe for payments and billing, according to runsonwhat (October 2026). runsonwhat found Stripe through a DNS verification record for Stripe and code on workos.com. Stripe is used by 27,701 companies runsonwhat tracks. ### How long has WorkOS used Atlassian Statuspage? WorkOS has used Atlassian Statuspage since at least June 2019, going by the first public certificate of the workos.com subdomain that points at Atlassian Statuspage. Other long-running tools at WorkOS include Amazon CloudFront (since February 2020), Dub (since 2022) and Vanta (since November 2025). ### Does WorkOS use jQuery? Yes. runsonwhat found jQuery at WorkOS through jQuery code on workos.com. jQuery is a Frontend tool used by 911,720 companies runsonwhat tracks. ### Does WorkOS use AI tools? Yes. runsonwhat has found Anthropic, OpenAI and MCP Registry at WorkOS; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so WorkOS may use more AI tools than these. ### Which companies have a tech stack similar to WorkOS's? The companies with the stacks most like WorkOS' are Rillet, Mintlify, kick.co and Braintrust, according to runsonwhat (October 2026). Each shares 18 to 28 tools with WorkOS, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what WorkOS uses? runsonwhat reads public records only. Of the 43 tools at WorkOS, 26 were found through DNS records, 9 through code on workos.com, 5 through subdomains that point at the vendor and 3 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and workos.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/workos.com (updated October 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.