# What does Grk Gruppe use?

Grk Gruppe (grk.de) shows public evidence of 12 tools, according to runsonwhat (last checked 2026-10-07).

- Industry: Real Estate
- Size: 51–200 employees
- Based in: Leipzig, Germany
- Founded: 1991
- LinkedIn: https://www.linkedin.com/company/grk-immobilien-gmbh

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [IONOS](https://www.runsonwhat.com/reverse/ionos) | Hosting & Cloud | Email records, Website code |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [GSAP](https://www.runsonwhat.com/reverse/gsap) | Media & UI | Website code |  |
| [Vue.js](https://www.runsonwhat.com/reverse/vue) | Frontend | 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 |  |
| [GetResponse](https://www.runsonwhat.com/reverse/getresponse) | Marketing | Email records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records, Website code |  |
| [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records |  |
| [Exclaimer](https://www.runsonwhat.com/reverse/exclaimer) | Workspace | Email records |  |
| [Resend](https://www.runsonwhat.com/reverse/resend) | Email Delivery | Email records |  |
| [Amazon Business](https://www.runsonwhat.com/reverse/amazon-business) | Finance & Legal | DNS verification records |  |

## FAQ

### What tools does Grk Gruppe use?

As of October 2026, runsonwhat has found 12 tools at Grk Gruppe (grk.de) in public records. Edge & Hosting: IONOS. Application: jQuery, GSAP and Vue.js. Go-to-market: WordPress, Yoast SEO and GetResponse. Company Ops: Microsoft 365, Apple Business and Exclaimer. Last checked October 7, 2026.

### What cloud does Grk Gruppe run on?

Grk Gruppe uses IONOS for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found IONOS through email records that authorize IONOS and code on grk.de. IONOS is used by 22,355 companies runsonwhat tracks.

### What email provider does Grk Gruppe use?

Grk Gruppe uses Microsoft 365 for email and office software, alongside Apple Business and Exclaimer, 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 701,710 companies runsonwhat tracks.

### What is Grk Gruppe's website built with?

Grk Gruppe uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on grk.de. WordPress is used by 582,767 companies runsonwhat tracks.

### What marketing software does Grk Gruppe use?

Grk Gruppe uses GetResponse for marketing, according to runsonwhat (October 2026). runsonwhat found GetResponse through email records that authorize GetResponse. GetResponse is used by 1,450 companies runsonwhat tracks.

### Does Grk Gruppe use jQuery?

Yes. runsonwhat found jQuery at Grk Gruppe through jQuery code on grk.de. jQuery is a Frontend tool used by 897,845 companies runsonwhat tracks.

### Which companies have a tech stack similar to Grk Gruppe's?

The companies with the stacks most like Grk Gruppe's are Janex International, Harbingers, ecoprotec and Moneyhouse U.S., according to runsonwhat (October 2026). Each shares 3 to 6 tools with Grk Gruppe, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Grk Gruppe uses?

runsonwhat reads public records only. Of the 12 tools at Grk Gruppe, 5 were found through code on grk.de, 4 through email records and 3 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and grk.de about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/grk.de (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.