# What does Stack Group, A Pcm Company use?

Stack Group, A Pcm Company (stack.co.uk) shows public evidence of 5 tools, according to runsonwhat (last checked 2026-11-05).

- Industry: Computer Networking
- Size: 11–50 employees
- Based in: Liverpool, United Kingdom
- Founded: 1979
- LinkedIn: https://www.linkedin.com/company/stack-data-solutions

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Akamai](https://www.runsonwhat.com/reverse/akamai) | CDN & Edge | Website code |  |

## Company Ops

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

## FAQ

### What tools does Stack Group, A Pcm Company use?

As of November 2026, runsonwhat has found 5 tools at Stack Group, A Pcm Company (stack.co.uk) in public records. Edge & Hosting: Akamai. Company Ops: Microsoft 365 and Proofpoint. Last checked November 5, 2026.

### What email provider does Stack Group, A Pcm Company use?

Stack Group, A Pcm Company uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 723,895 companies runsonwhat tracks.

### Does Stack Group, A Pcm Company use Proofpoint?

Yes. runsonwhat found Proofpoint at Stack Group, A Pcm Company through email records that authorize Proofpoint. Proofpoint is a Security & Compliance tool used by 50,179 companies runsonwhat tracks.

### How does runsonwhat know what Stack Group, A Pcm Company uses?

runsonwhat reads public records only. Of the 5 tools at Stack Group, A Pcm Company, 2 were found through email records, 1 through DNS records, 1 through website configuration files and 1 through code on stack.co.uk. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and stack.co.uk about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/stack.co.uk (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.