# What does RTX use? RTX (rtx.dk) shows public evidence of 19 tools, according to runsonwhat (last checked 2026-10-07). - Industry: Telecommunications - Size: 201–1,000 employees - Based in: Nørresundby, Denmark - Founded: 1993 - LinkedIn: https://www.linkedin.com/company/rtx-a-s ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Website code | | | [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | Custom domain, Website code | | | [one.com](https://www.runsonwhat.com/reverse/one-com) | Hosting & Cloud | Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [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 | | | [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code | | | [Microsoft Clarity](https://www.runsonwhat.com/reverse/clarity) | Analytics | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code | | | [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records, Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, Website code | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [Cookiebot](https://www.runsonwhat.com/reverse/cookiebot) | Security & Compliance | Website code | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | Email records, Website code | | | [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records | | | [Mailgun](https://www.runsonwhat.com/reverse/mailgun) | Email Delivery | Email records, Website code | | | [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records, Website code | | | [Webex](https://www.runsonwhat.com/reverse/webex) | Collaboration | DNS verification records | | ## FAQ ### What tools does RTX use? As of October 2026, runsonwhat has found 19 tools at RTX (rtx.dk) in public records. Edge & Hosting: Amazon Web Services, Microsoft Azure and one.com. Application: Anthropic. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Microsoft Ads and Mailchimp. Company Ops: Microsoft 365, Apple Business and Atlassian. Last checked October 7, 2026. ### What cloud does RTX run on? RTX uses Amazon Web Services for hosting and cloud infrastructure, alongside Microsoft Azure and one.com, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on rtx.dk. Amazon Web Services is used by 144,351 companies runsonwhat tracks. ### What email provider does RTX use? RTX 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 code on rtx.dk. Microsoft 365 is used by 694,681 companies runsonwhat tracks. ### What analytics tools does RTX use? RTX uses Google Analytics for analytics, alongside Google Tag Manager and Microsoft Clarity, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on rtx.dk. Google Analytics is used by 842,597 companies runsonwhat tracks. ### What marketing software does RTX use? RTX uses Mailchimp for marketing, according to runsonwhat (October 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp and code on rtx.dk. Mailchimp is used by 112,124 companies runsonwhat tracks. ### Does RTX use Google Ads? Yes. runsonwhat found Google Ads at RTX through Google Ads code on rtx.dk. Google Ads is a Ads & Pixels tool used by 447,171 companies runsonwhat tracks. ### Does RTX use AI tools? Yes. runsonwhat has found Anthropic at RTX; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so RTX may use more AI tools than these. ### Which companies have a tech stack similar to RTX's? The companies with the stacks most like RTX's are Unexus, Product Development Research Lab | Mechanical Engineering | Bth, LUCU FOOD and NORDIC Floorheating, according to runsonwhat (October 2026). Each shares 3 to 9 tools with RTX, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what RTX uses? runsonwhat reads public records only. Of the 19 tools at RTX, 8 were found through code on rtx.dk, 5 through email records, 5 through DNS records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and rtx.dk about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/rtx.dk (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.