runsonwhat

CLS's tech stack

What does CLS use?

CLS (groupcls.com) uses at least 21 tools we can see from public records, including Microsoft 365 for email and documents, Zoho for sales, Google Analytics for analytics and WordPress for its website. Last checked .

Industry
Telecommunications
Size
11–50 employees
Based in
San Isidro, Peru
Founded
1999
LinkedIn
Company page
Re-check liveVisit groupcls.com
Tools found
21
Categories
11
Layers
5 of 5
Last checked
Oct 2026

CLS'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

DNS

Application

5 tools, what the product is built with

Frontend

Media & UI

Data & Observability

3 tools, what they measure and store

Analytics

Go-to-market

7 tools, how they find and keep customers

Website & CMS

Marketing

Ads & Pixels

Sales & CRM

Company Ops

5 tools, what the team runs on day to day

Workspace

Collaboration

Security & Compliance

Companies like CLS also use

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

Companies with a stack like CLS's

Ranked by shared tools, with rare tools counting more.

CLS tech stack FAQ

What tools does CLS use?

As of October 2026, runsonwhat has found 21 tools at CLS (groupcls.com) in public records. Edge & Hosting: Gandi. Application: jQuery, Google Fonts and Vimeo. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: WordPress, Google Ads and Meta Pixel. Company Ops: Microsoft 365, Hornetsecurity and Axeptio. Last checked October 20, 2026.

What CRM does CLS use?

CLS uses Zoho for its CRM, according to runsonwhat (October 2026). runsonwhat found Zoho through a DNS verification record for Zoho. Zoho is used by 62,837 companies runsonwhat tracks.

What email provider does CLS use?

CLS uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 713,686 companies runsonwhat tracks.

What analytics tools does CLS use?

CLS uses Google Analytics for analytics, alongside Google Tag Manager and Microsoft Clarity, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on groupcls.com. Google Analytics is used by 886,474 companies runsonwhat tracks.

What is CLS's website built with?

CLS uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on groupcls.com. WordPress is used by 599,640 companies runsonwhat tracks.

Does CLS use jQuery?

Yes. runsonwhat found jQuery at CLS through jQuery code on groupcls.com. jQuery is a Frontend tool used by 919,382 companies runsonwhat tracks.

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

The companies with the stacks most like CLS' are Conservation Garden Park, ExpoLog Geneva SA, Bizdata and Borough IT, according to runsonwhat (October 2026). Each shares 2 to 8 tools with CLS, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what CLS uses?

runsonwhat reads public records only. Of the 21 tools at CLS, 13 were found through code on groupcls.com, 5 through DNS records and 3 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and groupcls.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.