# What does C1 use?

C1 (crowd1.com) shows public evidence of 11 tools, according to runsonwhat (last checked 2026-10-10).

- Industry: Telecommunications
- Size: 10,000+ employees
- Based in: Bellwood, United States
- Founded: 2016
- LinkedIn: https://www.linkedin.com/company/crowd1

## Edge & Hosting

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

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records |  |
| [Zoho](https://www.runsonwhat.com/reverse/zoho) | Sales & CRM | Email records |  |
| [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Custom domain, Email records |  |
| [Webflow](https://www.runsonwhat.com/reverse/webflow) | Website & CMS | Custom domain |  |
| [Pinterest](https://www.runsonwhat.com/reverse/pinterest) | Ads & Pixels | DNS verification records |  |
| [GetResponse](https://www.runsonwhat.com/reverse/getresponse) | Marketing | Email records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |
| [Postmark](https://www.runsonwhat.com/reverse/postmark) | Email Delivery | Email records |  |
| [AbuseIPDB](https://www.runsonwhat.com/reverse/abuseipdb) | Security & Compliance | DNS verification records |  |

## FAQ

### What tools does C1 use?

As of October 2026, runsonwhat has found 11 tools at C1 (crowd1.com) in public records. Edge & Hosting: Cloudflare. Go-to-market: Mailchimp, Zoho and Zendesk. Company Ops: Google Workspace, Postmark and AbuseIPDB. Last checked October 10, 2026.

### What CRM does C1 use?

C1 uses Zoho for its CRM, according to runsonwhat (October 2026). runsonwhat found Zoho through email records that authorize Zoho. Zoho is used by 61,651 companies runsonwhat tracks.

### What email provider does C1 use?

C1 uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 397,574 companies runsonwhat tracks.

### What does C1 use for customer support?

C1 uses Zendesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Zendesk through a subdomain that points at Zendesk and email records. Zendesk is used by 40,934 companies runsonwhat tracks.

### What is C1's website built with?

C1 uses Webflow for its website, according to runsonwhat (October 2026). runsonwhat found Webflow through a subdomain that points at Webflow. Webflow is used by 34,296 companies runsonwhat tracks.

### What marketing software does C1 use?

C1 uses Mailchimp for marketing, alongside GetResponse, according to runsonwhat (October 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 113,225 companies runsonwhat tracks.

### Does C1 use Cloudflare?

Yes. runsonwhat found Cloudflare at C1 through DNS records that point at Cloudflare and email records. Cloudflare is a CDN & Edge tool used by 692,707 companies runsonwhat tracks.

### Which companies have a tech stack similar to C1's?

The companies with the stacks most like C1's are Anticimex Group, Norfa, Belmond and Tillys, according to runsonwhat (October 2026). Each shares 2 to 5 tools with C1, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what C1 uses?

runsonwhat reads public records only. Of the 11 tools at C1, 5 were found through email records, 4 through DNS records and 2 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and crowd1.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/crowd1.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.