# What does Bayer use? Bayer (bayer.com) shows public evidence of 31 tools, according to runsonwhat (last checked 2026-10-09). - Industry: Phytopharmaceuticals - Size: 10,000+ employees - Based in: Germany - Founded: 1863 - LinkedIn: https://www.linkedin.com/company/bayer ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Custom domain | | | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Custom domain | | | [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | DNS verification records | | | [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | Custom domain | | | [Akamai](https://www.runsonwhat.com/reverse/akamai) | CDN & Edge | Custom domain, Website code | | | [CSC](https://www.runsonwhat.com/reverse/csc-domains) | DNS | DNS records | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [MongoDB Atlas](https://www.runsonwhat.com/reverse/mongodb) | Backend & Database | DNS verification records | | | [Perplexity](https://www.runsonwhat.com/reverse/perplexity) | AI | DNS verification records | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [CloudHealth](https://www.runsonwhat.com/reverse/cloudhealth) | Monitoring | DNS verification records | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Klaviyo](https://www.runsonwhat.com/reverse/klaviyo) | Marketing | DNS verification records | | | [Sitecore](https://www.runsonwhat.com/reverse/sitecore) | Website & CMS | DNS verification records | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, DNS verification records | | | [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 | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | DNS verification records | | | [GlobalSign](https://www.runsonwhat.com/reverse/globalsign) | Security & Compliance | DNS verification records | | | [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records | | | [Webex](https://www.runsonwhat.com/reverse/webex) | Collaboration | DNS verification records | | | [dmarcian](https://www.runsonwhat.com/reverse/dmarcian) | Security & Compliance | Email records | | | [Miro](https://www.runsonwhat.com/reverse/miro) | Collaboration | DNS verification records | | | [Canva](https://www.runsonwhat.com/reverse/canva) | Collaboration | DNS verification records | | | [Smartsheet](https://www.runsonwhat.com/reverse/smartsheet) | Collaboration | DNS verification records | | | [Bitwarden](https://www.runsonwhat.com/reverse/bitwarden) | Security & Compliance | DNS verification records | | | [Airtable](https://www.runsonwhat.com/reverse/airtable) | Collaboration | DNS verification records | | | [SAP SuccessFactors](https://www.runsonwhat.com/reverse/sap-successfactors) | People & HR | Custom domain | | | [Docker](https://www.runsonwhat.com/reverse/docker) | Dev Tools | DNS verification records | | | [Wrike](https://www.runsonwhat.com/reverse/wrike) | Collaboration | DNS verification records | | | [Flexera](https://www.runsonwhat.com/reverse/flexera) | Dev Tools | DNS verification records | | ## FAQ ### What tools does Bayer use? As of October 2026, runsonwhat has found 31 tools at Bayer (bayer.com) in public records. Edge & Hosting: Amazon Web Services, Amazon CloudFront and Vercel. Application: Anthropic, MongoDB Atlas and Perplexity. Data & Observability: CloudHealth. Go-to-market: Klaviyo and Sitecore. Company Ops: Microsoft 365, SendGrid and Apple Business. Last checked October 9, 2026. ### What cloud does Bayer run on? Bayer uses Amazon Web Services for hosting and cloud infrastructure, alongside Vercel and Microsoft Azure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services. Amazon Web Services is used by 144,750 companies runsonwhat tracks. ### What email provider does Bayer use? Bayer uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 700,596 companies runsonwhat tracks. ### What is Bayer's website built with? Bayer uses Sitecore for its website, according to runsonwhat (October 2026). runsonwhat found Sitecore through a DNS verification record for Sitecore. Sitecore is used by 2,062 companies runsonwhat tracks. ### What marketing software does Bayer use? Bayer uses Klaviyo for marketing, according to runsonwhat (October 2026). runsonwhat found Klaviyo through a DNS verification record for Klaviyo. Klaviyo is used by 34,542 companies runsonwhat tracks. ### What does Bayer use for hiring and HR? Bayer uses SAP SuccessFactors for hiring and HR, according to runsonwhat (October 2026). runsonwhat found SAP SuccessFactors through a subdomain that points at SAP SuccessFactors. SAP SuccessFactors is used by 3,179 companies runsonwhat tracks. ### Does Bayer use SendGrid? Yes. runsonwhat found SendGrid at Bayer through email records that authorize SendGrid. SendGrid is a Email Delivery tool used by 190,757 companies runsonwhat tracks. ### Does Bayer use AI tools? Yes. runsonwhat has found Anthropic and Perplexity at Bayer; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Bayer may use more AI tools than these. ### Which companies have a tech stack similar to Bayer's? The companies with the stacks most like Bayer's are Warner Bros. Discovery, CDW, Aon and Tesco Metro, according to runsonwhat (October 2026). Each shares 14 to 20 tools with Bayer, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Bayer uses? runsonwhat reads public records only. Of the 31 tools at Bayer, 23 were found through DNS records, 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 bayer.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/bayer.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.