# What does Aon use? Aon (aon.de) shows public evidence of 22 tools, according to runsonwhat (last checked 2026-10-20). - Industry: Financial Services - Size: 1,001–5,000 employees - Based in: Hamburg, Germany - Founded: 1919 - LinkedIn: https://www.linkedin.com/company/aon ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code | | | [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | Website code | | | [IBM Cloud](https://www.runsonwhat.com/reverse/ibm-cloud) | Hosting & Cloud | DNS verification records | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code | | | [Hotjar](https://www.runsonwhat.com/reverse/hotjar) | Analytics | Website code | | | [New Relic](https://www.runsonwhat.com/reverse/newrelic) | Monitoring | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [Brevo](https://www.runsonwhat.com/reverse/brevo) | Marketing | DNS verification records, Email records | | | [Reddit Ads](https://www.runsonwhat.com/reverse/reddit-ads) | Ads & Pixels | Website code | | ## 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 | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code | | | [Valimail](https://www.runsonwhat.com/reverse/valimail) | Security & Compliance | Email records | | | [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records | | | [Webex](https://www.runsonwhat.com/reverse/webex) | Collaboration | DNS verification records | | | [Figma](https://www.runsonwhat.com/reverse/figma) | Collaboration | DNS verification records | | | [HackerOne](https://www.runsonwhat.com/reverse/hackerone) | Security & Compliance | Website config | | ## Recent changes at Aon - 2026-10-09: started using [IBM Cloud](https://www.runsonwhat.com/reverse/ibm-cloud) ## FAQ ### What tools does Aon use? As of October 2026, runsonwhat has found 22 tools at Aon (aon.de) in public records. Edge & Hosting: Cloudflare, Microsoft Azure and IBM Cloud. Application: Vimeo and Anthropic. Data & Observability: Google Analytics, Hotjar and New Relic. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Microsoft 365, SendGrid and Atlassian. Last checked October 20, 2026. ### What cloud does Aon run on? Aon uses Microsoft Azure for hosting and cloud infrastructure, alongside IBM Cloud, according to runsonwhat (October 2026). runsonwhat found Microsoft Azure through Microsoft Azure code on aon.de. Microsoft Azure is used by 46,693 companies runsonwhat tracks. ### What email provider does Aon use? Aon uses Microsoft 365 for email and office software, 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 710,144 companies runsonwhat tracks. ### What analytics tools does Aon use? Aon uses Google Analytics for analytics, alongside Hotjar, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on aon.de. Google Analytics is used by 879,118 companies runsonwhat tracks. ### What marketing software does Aon use? Aon uses Brevo for marketing, according to runsonwhat (October 2026). runsonwhat found Brevo through a DNS verification record for Brevo and email records. Brevo is used by 79,653 companies runsonwhat tracks. ### What monitoring tools does Aon use? Aon uses New Relic for monitoring, according to runsonwhat (October 2026). runsonwhat found New Relic through New Relic code on aon.de. New Relic is used by 16,924 companies runsonwhat tracks. ### Does Aon use Cloudflare? Yes. runsonwhat found Cloudflare at Aon through DNS records that point at Cloudflare and code on aon.de. Cloudflare is a CDN & Edge tool used by 702,765 companies runsonwhat tracks. ### Does Aon use AI tools? Yes. runsonwhat has found Anthropic at Aon; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Aon may use more AI tools than these. ### Has Aon changed tools recently? Yes. On runsonwhat's rechecks, Aon started using IBM Cloud (latest on October 9, 2026). A change counts only between two checks of aon.de done the same way. ### Which companies have a tech stack similar to Aon's? The companies with the stacks most like Aon's are SoFi Technology Solutions, IG, Fiserv and Aon, according to runsonwhat (October 2026). Each shares 8 to 20 tools with Aon, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Aon uses? runsonwhat reads public records only. Of the 22 tools at Aon, 10 were found through code on aon.de, 8 through DNS records, 3 through email records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and aon.de about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/aon.de (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.