# usedby > usedby lists which companies use which AI tools. Each line links a company to a tool and to a public page that shows them together: a vendor customer page, a case study, a press release or a job post. Counts are of the companies on usedby, not market shares, and a date is the first public proof found, not an adoption date. Today: 12,374 public lines across 7,551 companies, on 468 AI tools with public customers (466 of them with a confirmed or observed one), of 484 tracked tools. Every proof level is a customer, and each line shows its level: 6,546 confirmed (a case study, a named quote or a press release), 5,623 observed (the vendor shows the company on its own pages), 205 signals (a job post shows the company's employees use the tool: the weakest proof). Companies that a vendor stops showing are hidden, never published as departures. Proof is never for sale: no one can pay for a line, a proof level or a rank. Latest check of a public line: 2026-10-08 (11,518 of 12,374 lines have a dated check). Markdown twins: the main pages (tool, company, industry, category, compare, alternatives, case study, methodology, changes) have a plain Markdown version in English. Add `.md` to the page path, for example https://www.usedby.ai/tools/harvey.md. Twins carry the same counts and rules as the HTML page, which stays the canonical URL. ## Method - [How we check](https://www.usedby.ai/methodology.md): proof levels, captures, checks, removal rules and what usedby does not claim - [Newly listed customers](https://www.usedby.ai/changes.md): newly listed customers, newest first, dated, with their source when one is public ## Pages - [AI tools](https://www.usedby.ai/tools): every tracked tool ranked by public customers. Twin of a tool: /tools/{slug}.md - [Tool categories](https://www.usedby.ai/tools): one ranking per category. Twin: /tools/category/{slug}.md - [Companies](https://www.usedby.ai/companies): the AI tools of each company, with the proof behind each line. Twin: /companies/{slug}.md - [Industries](https://www.usedby.ai/companies): what the companies of an industry on usedby use. Twin: /companies/industry/{slug}.md - [Compare](https://www.usedby.ai/compare): two tools side by side, with the companies named on both. Twin: /compare/{a}-vs-{b}.md (slugs in alphabetical order) - Alternatives: tools of the same category (or category family when the category is thin) with a public customer. Twin: /alternatives/{slug}.md - [Case studies](https://www.usedby.ai/case-studies): reviewed customer stories, each with what usedby checked. Twin: /case-studies/{slug}.md - [Blog](https://www.usedby.ai/blog): articles (HTML only) ## Tools with the most public customers - [Harvey](https://www.usedby.ai/tools/harvey.md): 235 public customers, 235 named - [Jotform](https://www.usedby.ai/tools/jotform.md): 132 public customers, 132 named - [Retool](https://www.usedby.ai/tools/retool.md): 128 public customers, 128 named - [Intercom](https://www.usedby.ai/tools/intercom.md): 112 public customers, 110 named - [Legora](https://www.usedby.ai/tools/legora.md): 111 public customers, 111 named - [Akur8](https://www.usedby.ai/tools/akur8.md): 105 public customers, 105 named - [Notion](https://www.usedby.ai/tools/notion.md): 101 public customers, 94 named - [Cursor](https://www.usedby.ai/tools/cursor.md): 97 public customers, 86 named - [FloQast](https://www.usedby.ai/tools/floqast.md): 96 public customers, 96 named - [Metaview](https://www.usedby.ai/tools/metaview.md): 84 public customers, 84 named - [Reclaim](https://www.usedby.ai/tools/reclaim.md): 81 public customers, 81 named - [Figma](https://www.usedby.ai/tools/figma.md): 76 public customers, 49 named - [Writer](https://www.usedby.ai/tools/writer.md): 73 public customers, 73 named - [Claude](https://www.usedby.ai/tools/claude.md): 73 public customers, 48 named - [HighRadius](https://www.usedby.ai/tools/highradius.md): 72 public customers, 72 named - [Apollo](https://www.usedby.ai/tools/apollo.md): 71 public customers, 71 named - [Monte Carlo](https://www.usedby.ai/tools/monte-carlo.md): 69 public customers, 69 named - [Common Room](https://www.usedby.ai/tools/common-room.md): 68 public customers, 68 named - [ElevenLabs](https://www.usedby.ai/tools/elevenlabs.md): 68 public customers, 68 named - [ZoomInfo](https://www.usedby.ai/tools/zoominfo.md): 67 public customers, 62 named ## Companies with the most named AI tools - [Amazon](https://www.usedby.ai/companies/amazon.md): 41 named AI tools - [Salesforce](https://www.usedby.ai/companies/salesforce.md): 40 named AI tools - [Hubspot](https://www.usedby.ai/companies/hubspot.md): 35 named AI tools - [Nvidia](https://www.usedby.ai/companies/nvidia.md): 34 named AI tools - [Microsoft](https://www.usedby.ai/companies/microsoft.md): 33 named AI tools - [Cisco](https://www.usedby.ai/companies/cisco.md): 33 named AI tools - [Ramp](https://www.usedby.ai/companies/ramp.md): 31 named AI tools - [Adobe](https://www.usedby.ai/companies/adobe.md): 30 named AI tools - [Notion](https://www.usedby.ai/companies/notion.md): 27 named AI tools - [Canva](https://www.usedby.ai/companies/canva.md): 27 named AI tools ## Industries - [Legal & Compliance](https://www.usedby.ai/companies/industry/legal-compliance-legaltech.md): 204 companies with a public AI tool - [Insurance & InsurTech](https://www.usedby.ai/companies/industry/insurance-insurtech.md): 139 companies with a public AI tool - [Fintech & Payments](https://www.usedby.ai/companies/industry/fintech-payments.md): 131 companies with a public AI tool - [Marketing Tech](https://www.usedby.ai/companies/industry/marketing-tech-martech.md): 127 companies with a public AI tool - [DevTools & Infrastructure](https://www.usedby.ai/companies/industry/devtools-infrastructure.md): 126 companies with a public AI tool - [Artificial Intelligence](https://www.usedby.ai/companies/industry/artificial-intelligence.md): 117 companies with a public AI tool - [HR & Recruiting](https://www.usedby.ai/companies/industry/hr-recruiting-hr-tech.md): 101 companies with a public AI tool - [Banking & Mortgages](https://www.usedby.ai/companies/industry/banking-mortgages.md): 94 companies with a public AI tool - [HealthTech & Digital Health](https://www.usedby.ai/companies/industry/healthtech-digital-health.md): 81 companies with a public AI tool - [Cybersecurity](https://www.usedby.ai/companies/industry/cybersecurity.md): 74 companies with a public AI tool - [Telecommunications](https://www.usedby.ai/companies/industry/telecommunications.md): 69 companies with a public AI tool - [IT Services & System Integration](https://www.usedby.ai/companies/industry/it-services-system-integration.md): 69 companies with a public AI tool ## Categories - [Customer Service Automation](https://www.usedby.ai/tools/category/customer-service-automation.md): 36 tools with a public customer - [Finance & Accounting AI](https://www.usedby.ai/tools/category/finance-accounting-ai.md): 24 tools with a public customer - [Recruiting & Talent Acquisition](https://www.usedby.ai/tools/category/recruiting-talent-acquisition.md): 18 tools with a public customer - [Legal AI](https://www.usedby.ai/tools/category/legal-compliance-ai.md): 15 tools with a public customer - [LLM Ops & Frameworks](https://www.usedby.ai/tools/category/llm-ops-frameworks.md): 14 tools with a public customer - [Video Generation & Editing](https://www.usedby.ai/tools/category/video-generation-editing.md): 14 tools with a public customer - [Meeting Assistants](https://www.usedby.ai/tools/category/meeting-assistants.md): 13 tools with a public customer - [Enterprise AI Platforms](https://www.usedby.ai/tools/category/enterprise-ai-platforms.md): 12 tools with a public customer - [AI Phone Agents](https://www.usedby.ai/tools/category/ai-phone-agents.md): 11 tools with a public customer - [Document & Process Intelligence](https://www.usedby.ai/tools/category/document-process-intelligence.md): 11 tools with a public customer - [LLM Inference](https://www.usedby.ai/tools/category/llm-inference.md): 11 tools with a public customer - [ML Ops & Training](https://www.usedby.ai/tools/category/ml-ops-training.md): 11 tools with a public customer ## Terms - [Terms of use](https://www.usedby.ai/terms): quote freely with a link to the source page; bulk reuse, scraping or copying the database needs written consent ## Contact - Corrections, data questions and consent requests: contact@usedby.ai ## Optional - [Sitemap](https://www.usedby.ai/sitemap.xml): every indexable HTML page