# What does Siegen use?

Siegen (siegen.com.br) shows public evidence of 9 tools, according to runsonwhat (last checked 2026-11-06).

- Industry: Management Consulting
- Size: 51–200 employees
- Based in: São Paulo, Brazil
- Founded: 1996
- LinkedIn: https://www.linkedin.com/company/siegen-ltda

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code |  |
| [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |
| [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records |  |
| [GlobalSign](https://www.runsonwhat.com/reverse/globalsign) | Security & Compliance | DNS verification records |  |

## FAQ

### What tools does Siegen use?

As of November 2026, runsonwhat has found 9 tools at Siegen (siegen.com.br) in public records. Application: jQuery, Vimeo and YouTube. Go-to-market: WordPress, Yoast SEO and Mailchimp. Company Ops: Microsoft 365 and GlobalSign. Last checked November 6, 2026.

### What email provider does Siegen use?

Siegen uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 734,184 companies runsonwhat tracks.

### What is Siegen's website built with?

Siegen uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (November 2026). runsonwhat found WordPress through WordPress code on siegen.com.br. WordPress is used by 606,809 companies runsonwhat tracks.

### What marketing software does Siegen use?

Siegen uses Mailchimp for marketing, according to runsonwhat (November 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 119,031 companies runsonwhat tracks.

### Does Siegen use jQuery?

Yes. runsonwhat found jQuery at Siegen through jQuery code on siegen.com.br. jQuery is a Frontend tool used by 927,202 companies runsonwhat tracks.

### How does runsonwhat know what Siegen uses?

runsonwhat reads public records only. Of the 9 tools at Siegen, 5 were found through code on siegen.com.br, 2 through DNS records and 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and siegen.com.br about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/siegen.com.br (updated November 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.