Ontrex AG's tech stack
What does Ontrex AG use?
Ontrex AG (ontrex.ch) uses at least 7 tools we can see from public records, including Microsoft 365 for email and documents, CleverReach for marketing, Let's Encrypt for security and Anthropic for AI. Last checked .
- Industry
- IT Services
- Size
- 51–200 employees
- Based in
- Brüttisellen, Switzerland
- Founded
- 2004
- Company page
- Tools found
- 7
- Categories
- 5
- Layers
- 3 of 5
- Changes seen
- 1
Ontrex AG's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Application
1 tool, what the product is built with
Go-to-market
1 tool, how they find and keep customers
Marketing
Company Ops
5 tools, what the team runs on day to day
Workspace
Dev Tools
Security & Compliance
What changed at Ontrex AG
Recent starts and stops
- StartedAnthropic
Ontrex AG tech stack FAQ
What tools does Ontrex use?
As of October 2026, runsonwhat has found 7 tools at Ontrex (ontrex.ch) in public records. Application: Anthropic. Go-to-market: CleverReach. Company Ops: Microsoft 365, Atlassian and Let's Encrypt. Last checked October 16, 2026.
What email provider does Ontrex use?
Ontrex uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 701,702 companies runsonwhat tracks.
What marketing software does Ontrex use?
Ontrex uses CleverReach for marketing, according to runsonwhat (October 2026). runsonwhat found CleverReach through email records that authorize CleverReach. CleverReach is used by 3,420 companies runsonwhat tracks.
Does Ontrex use Atlassian?
Yes. runsonwhat found Atlassian at Ontrex through a DNS verification record for Atlassian. Atlassian is a Dev Tools tool used by 65,137 companies runsonwhat tracks.
Does Ontrex use AI tools?
Yes. runsonwhat has found Anthropic at Ontrex; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Ontrex may use more AI tools than these.
Has Ontrex changed tools recently?
Yes. On runsonwhat's rechecks, Ontrex started using Anthropic (latest on October 16, 2026). A change counts only between two checks of ontrex.ch done the same way.
How does runsonwhat know what Ontrex uses?
runsonwhat reads public records only. Of the 7 tools at Ontrex, 5 were found through DNS records, 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and ontrex.ch about monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.