SJ's tech stack
What does SJ use?
SJ (sj.dk) uses at least 14 tools we can see from public records, including Microsoft 365 for email and documents, Zendesk for customer support, Cloudflare for content delivery and GlobalSign for security. Last checked .
- Industry
- Civil Engineering
- Size
- 51–200 employees
- Based in
- Aarhus, Denmark
- Founded
- 1945
- Company page
- Tools found
- 14
- Categories
- 9
- Layers
- 4 of 5
- Last checked
- Oct 2026
SJ'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.
Edge & Hosting
1 tool, where the bytes are served from
CDN & Edge
Application
5 tools, what the product is built with
Go-to-market
2 tools, how they find and keep customers
Marketing
Support & Docs
Company Ops
6 tools, what the team runs on day to day
Workspace
Collaboration
Security & Compliance
SJ tech stack FAQ
What tools does SJ use?
As of October 2026, runsonwhat has found 14 tools at SJ (sj.dk) in public records. Edge & Hosting: Cloudflare. Application: jQuery, Google Fonts and Vimeo. Go-to-market: Zendesk. Company Ops: Microsoft 365, Apple Business and GlobalSign. Last checked October 7, 2026.
What email provider does SJ use?
SJ uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 699,637 companies runsonwhat tracks.
What does SJ use for customer support?
SJ uses Zendesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Zendesk through email records that authorize Zendesk and code on sj.dk. Zendesk is used by 40,767 companies runsonwhat tracks.
Does SJ use jQuery?
Yes. runsonwhat found jQuery at SJ through jQuery code on sj.dk. jQuery is a Frontend tool used by 895,139 companies runsonwhat tracks.
Does SJ use AI tools?
Yes. runsonwhat has found Anthropic at SJ; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so SJ may use more AI tools than these.
How does runsonwhat know what SJ uses?
runsonwhat reads public records only. Of the 14 tools at SJ, 8 were found through DNS records, 4 through code on sj.dk and 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and sj.dk 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.