Lean Group's tech stack
What does Lean Group use?
Lean Group (lean-group.com) uses at least 10 tools we can see from public records, including Microsoft 365 for email and documents, Cloudflare for content delivery, Resend for email delivery and Cloudflare Turnstile for security. Last checked .
- Industry
- Management Consulting
- Size
- 11–50 employees
- Based in
- Frankfurt, Germany
- Founded
- 2020
- Company page
- Tools found
- 10
- Categories
- 9
- Layers
- 4 of 5
- Last checked
- Oct 2026
Lean Group'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
2 tools, where the bytes are served from
CDN & Edge
DNS
Application
2 tools, what the product is built with
Frontend
Go-to-market
1 tool, how they find and keep customers
Marketing
Company Ops
5 tools, what the team runs on day to day
Email Delivery
Workspace
Dev Tools
Security & Compliance
Lean Group tech stack FAQ
What tools does Lean Group use?
As of October 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 Cloudflare Turnstile. Last checked October 20, 2026.
What email provider does Lean Group use?
Lean Group uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 713,718 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 706,670 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.
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.