# What does Lean Group use?

Lean Group (lean-group.com) shows public evidence of 10 tools, according to runsonwhat (last checked 2026-11-06).

- Industry: Management Consulting
- Size: 11–50 employees
- Based in: Frankfurt, Germany
- Founded: 2020
- LinkedIn: https://www.linkedin.com/company/lean-group-com

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code |  |
| [GoDaddy](https://www.runsonwhat.com/reverse/godaddy) | DNS | DNS records |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records |  |
| [Astro](https://www.runsonwhat.com/reverse/astro) | Frontend | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records |  |
| [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records |  |
| [Resend](https://www.runsonwhat.com/reverse/resend) | Email Delivery | Email records |  |
| [Cloudflare Turnstile](https://www.runsonwhat.com/reverse/turnstile) | Security & Compliance | Website code |  |
| [Postmark](https://www.runsonwhat.com/reverse/postmark) | Email Delivery | Email records |  |

## FAQ

### What tools does Lean Group use?

As of November 2026, runsonwhat has found 10 tools at Lean Group (lean-group.com) in public records. Edge & Hosting: Cloudflare and GoDaddy. Application: OpenAI and Astro. Company Ops: Microsoft 365, Atlassian and Resend. Last checked November 6, 2026.

### What email provider does Lean Group use?

Lean Group 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 734,762 companies runsonwhat tracks.

### Does Lean Group use Cloudflare?

Yes. runsonwhat found Cloudflare at Lean Group through Cloudflare code on lean-group.com. Cloudflare is a CDN & Edge tool used by 734,055 companies runsonwhat tracks.

### Does Lean Group use AI tools?

Yes. runsonwhat has found OpenAI at Lean Group; OpenAI, for example, through a DNS verification record for OpenAI. AI services called only from servers leave no public trace, so Lean Group may use more AI tools than these.

### How does runsonwhat know what Lean Group uses?

runsonwhat reads public records only. Of the 10 tools at Lean Group, 4 were found through DNS records, 3 through email records and 3 through code on lean-group.com. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and lean-group.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/lean-group.com (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.