C1's tech stack
What does C1 use?
C1 (crowd1.com) uses at least 11 tools we can see from public records, including Google Workspace for email and documents, Zoho for sales, Zendesk for customer support and Webflow for its website. Last checked .
- Industry
- Telecommunications
- Size
- 10,000+ employees
- Based in
- Bellwood, United States
- Founded
- 2016
- Company page
- Tools found
- 11
- Categories
- 9
- Layers
- 3 of 5
- Last checked
- Oct 2026
C1'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
1 tool, where the bytes are served from
CDN & Edge
Go-to-market
7 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Sales & CRM
Support & Docs
Company Ops
3 tools, what the team runs on day to day
Companies like C1 also use
Tools common among companies with a similar stack that we haven't found at C1.
Companies with a stack like C1's
Ranked by shared tools, with rare tools counting more.
Anticimex GroupPest Control · 10,000+ people5in common
NorfaRetail2in common
BelmondHospitality2in common
TillysRetail4in common
Atmireatmire.com6in common
HexicorIT Services · 51–200 people2in common
Sovon - Stichting Openbaar Voortgezet Onderwijs Noord-Holland-NoordEducation Management · 201–1,000 people2in common
DMARC Defenderdmarcdefender.io4in common
More Telecommunications companies
Other Telecommunications companies we've checked.
C1 tech stack 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 60,960 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 393,386 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 40,157 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 33,664 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 111,561 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 680,481 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.
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.