runsonwhat

Celcat's tech stack

What does Celcat use?

Celcat (celcat.fr) uses at least 19 tools we can see from public records, including Amazon Web Services for hosting, Microsoft 365 for email and documents, ZoomInfo for sales and Freshdesk for customer support. Last checked .

Industry
Software
Size
11–50 employees
Based in
Coleshill, United Kingdom
Founded
1979
LinkedIn
Company page
Re-check liveVisit celcat.fr
Tools found
19
Categories
13
Layers
4 of 5
Last checked
Oct 2026

Celcat'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

Hosting & Cloud

DNS

Application

4 tools, what the product is built with

Frontend

AI

Media & UI

Go-to-market

7 tools, how they find and keep customers

Website & CMS

Marketing

Sales & CRM

Support & Docs

Company Ops

6 tools, what the team runs on day to day

Email Delivery

Workspace

Dev Tools

Security & Compliance

Companies like Celcat also use

Tools common among companies with a similar stack that we haven't found at Celcat.

Companies with a stack like Celcat's

Ranked by shared tools, with rare tools counting more.

More Software companies

Other Software companies we've checked.

Celcat tech stack FAQ

What tools does Celcat use?

As of October 2026, runsonwhat has found 19 tools at Celcat (celcat.fr) in public records. Edge & Hosting: Amazon Web Services and Amazon Route 53. Application: jQuery, Google Fonts and Anthropic. Go-to-market: WordPress, Yoast SEO and Mailchimp. Company Ops: Microsoft 365, reCAPTCHA and Atlassian. Last checked October 21, 2026.

What cloud does Celcat run on?

Celcat uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on celcat.fr. Amazon Web Services is used by 146,185 companies runsonwhat tracks.

What sales tools does Celcat use?

The sales tools runsonwhat has found at Celcat are ZoomInfo and Salesloft (October 2026); no CRM shows up in Celcat's public records. runsonwhat found ZoomInfo through ZoomInfo code on celcat.fr.

What email provider does Celcat use?

Celcat 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 and email records. Microsoft 365 is used by 716,227 companies runsonwhat tracks.

What does Celcat use for customer support?

Celcat uses Freshdesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Freshdesk through a subdomain that points at Freshdesk and email records. Freshdesk is used by 12,631 companies runsonwhat tracks.

What is Celcat's website built with?

Celcat uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on celcat.fr. WordPress is used by 603,121 companies runsonwhat tracks.

Does Celcat use jQuery?

Yes. runsonwhat found jQuery at Celcat through jQuery code on celcat.fr. jQuery is a Frontend tool used by 924,716 companies runsonwhat tracks.

Does Celcat use AI tools?

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

Which companies have a tech stack similar to Celcat's?

The companies with the stacks most like Celcat's are Thompson Street Capital Partners, Prodrive Technologies (Netherlands), Red Bull New York and Zoom Communications, according to runsonwhat (October 2026). Each shares 5 to 9 tools with Celcat, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what Celcat uses?

runsonwhat reads public records only. Of the 19 tools at Celcat, 8 were found through code on celcat.fr, 8 through DNS records, 2 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and celcat.fr 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.