# What does SIENN use?

SIENN (sienn.com) shows public evidence of 24 tools, according to runsonwhat (last checked 2026-10-23).

- Industry: IT Services
- Size: 51–200 employees
- Based in: Nijmegen, Netherlands
- Founded: 2004
- LinkedIn: https://www.linkedin.com/company/sienn-group

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code |  |
| [GSAP](https://www.runsonwhat.com/reverse/gsap) | Media & UI | Website code |  |
| [Lottie](https://www.runsonwhat.com/reverse/lottie) | Media & UI | Website code |  |

## 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 |  |
| [Hotjar](https://www.runsonwhat.com/reverse/hotjar) | Analytics | Website code |  |
| [Matomo](https://www.runsonwhat.com/reverse/matomo) | Analytics | Website code |  |
| [web-vitals](https://www.runsonwhat.com/reverse/web-vitals) | Monitoring | Website code |  |
| [Piwik PRO](https://www.runsonwhat.com/reverse/piwik-pro) | Analytics | Website code |  |
| [UptimeRobot](https://www.runsonwhat.com/reverse/uptimerobot) | Monitoring | Custom domain |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |
| [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code |  |
| [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records |  |
| [Leadinfo](https://www.runsonwhat.com/reverse/leadinfo) | Sales & CRM | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records |  |
| [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records |  |
| [Cookiebot](https://www.runsonwhat.com/reverse/cookiebot) | Security & Compliance | Website code |  |
| [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records, Email records |  |

## FAQ

### What tools does SIENN use?

As of October 2026, runsonwhat has found 24 tools at SIENN (sienn.com) in public records. Application: jQuery, Google Fonts and GSAP. Data & Observability: Google Analytics, Google Tag Manager and Hotjar. Go-to-market: WordPress, Google Ads and Yoast SEO. Company Ops: Microsoft 365, SendGrid and Apple Business. Last checked October 23, 2026.

### What sales tools does SIENN use?

The sales tools runsonwhat has found at SIENN are Leadinfo (October 2026); no CRM shows up in SIENN's public records. runsonwhat found Leadinfo through Leadinfo code on sienn.com. Leadinfo is used by 5,860 companies runsonwhat tracks.

### What email provider does SIENN use?

SIENN 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 710,129 companies runsonwhat tracks.

### What analytics tools does SIENN use?

SIENN uses Google Analytics for analytics, alongside Google Tag Manager, Hotjar and Matomo, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on sienn.com. Google Analytics is used by 878,780 companies runsonwhat tracks.

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

SIENN uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on sienn.com. WordPress is used by 596,448 companies runsonwhat tracks.

### What marketing software does SIENN use?

SIENN uses Mailchimp for marketing, according to runsonwhat (October 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 114,934 companies runsonwhat tracks.

### Does SIENN use jQuery?

Yes. runsonwhat found jQuery at SIENN through jQuery code on sienn.com. jQuery is a Frontend tool used by 914,913 companies runsonwhat tracks.

### How does runsonwhat know what SIENN uses?

runsonwhat reads public records only. Of the 24 tools at SIENN, 16 were found through code on sienn.com, 4 through DNS records, 2 through email records, 1 through website configuration files 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 sienn.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/sienn.com (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.