# What does 3i use?

3i (3i.com) shows public evidence of 19 tools, according to runsonwhat (last checked 2026-10-11).

- Based in: United Kingdom
- Founded: 1945
- LinkedIn: https://www.linkedin.com/company/3i-group-plc

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Custom domain, Website code |  |
| [CSC](https://www.runsonwhat.com/reverse/csc-domains) | DNS | DNS records |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code |  |
| [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records |  |
| [Perplexity](https://www.runsonwhat.com/reverse/perplexity) | AI | DNS verification records |  |

## 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 |  |
| [Microsoft Clarity](https://www.runsonwhat.com/reverse/clarity) | Analytics | Website code |  |
| [Plausible](https://www.runsonwhat.com/reverse/plausible) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code |  |
| [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Website code |  |
| [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records |  |
| [Cookiebot](https://www.runsonwhat.com/reverse/cookiebot) | Security & Compliance | Website code |  |
| [Mimecast](https://www.runsonwhat.com/reverse/mimecast) | Security & Compliance | Email records |  |
| [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records, Website code |  |
| [Zoom](https://www.runsonwhat.com/reverse/zoom) | Collaboration | DNS verification records |  |
| [Pexip](https://www.runsonwhat.com/reverse/pexip) | Collaboration | DNS verification records |  |

## FAQ

### What tools does 3i use?

As of October 2026, runsonwhat has found 19 tools at 3i (3i.com) in public records. Edge & Hosting: Cloudflare and CSC. Application: Vimeo, OpenAI and Perplexity. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Microsoft Ads, Mailchimp and LinkedIn Insight Tag. Company Ops: Microsoft 365, Cookiebot and Mimecast. Last checked October 11, 2026.

### What email provider does 3i use?

3i uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 705,079 companies runsonwhat tracks.

### What analytics tools does 3i use?

3i uses Google Analytics for analytics, alongside Google Tag Manager, Microsoft Clarity and Plausible, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on 3i.com. Google Analytics is used by 859,388 companies runsonwhat tracks.

### What marketing software does 3i use?

3i uses Mailchimp for marketing, according to runsonwhat (October 2026). runsonwhat found Mailchimp through Mailchimp code on 3i.com. Mailchimp is used by 113,624 companies runsonwhat tracks.

### Does 3i use Cloudflare?

Yes. runsonwhat found Cloudflare at 3i through a subdomain that points at Cloudflare and code on 3i.com. Cloudflare is a CDN & Edge tool used by 695,615 companies runsonwhat tracks.

### Does 3i use AI tools?

Yes. runsonwhat has found OpenAI and Perplexity at 3i; OpenAI, for example, through a DNS verification record for OpenAI. AI services called only from servers leave no public trace, so 3i may use more AI tools than these.

### Which companies have a tech stack similar to 3i's?

The companies with the stacks most like 3i's are W. P. Carey, Berkeley Research Group, New Jersey Resources and BCIT - Education for a Complex World, according to runsonwhat (October 2026). Each shares 8 to 13 tools with 3i, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what 3i uses?

runsonwhat reads public records only. Of the 19 tools at 3i, 10 were found through code on 3i.com, 7 through DNS records, 1 through subdomains that point at the vendor and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and 3i.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/3i.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.