runsonwhat

ITRS's tech stack

What does ITRS use?

ITRS (itrsgroup.com) uses at least 25 tools we can see from public records, including Amazon Web Services for hosting, Microsoft 365 for email and documents, HubSpot for sales and Zendesk for customer support. Last checked .

Industry
Software
Size
201–1,000 employees
Based in
London, United Kingdom
Founded
1997
LinkedIn
Company page
Re-check liveVisit itrsgroup.com
Tools found
25
Categories
14
Oldest proven tool
Apr 2020
Last checked
Oct 2026

ITRS'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

3 tools, where the bytes are served from

Hosting & Cloud

DNS

Application

3 tools, what the product is built with

Frontend

AI

Search

Data & Observability

2 tools, what they measure and store

Analytics

Go-to-market

9 tools, how they find and keep customers

Marketing

Ads & Pixels

Sales & CRM

Support & Docs

Company Ops

8 tools, what the team runs on day to day

Workspace

Collaboration

Dev Tools

Security & Compliance

What changed at ITRS

Using since

Dates come from the first certificate of the subdomain that points at the tool.

  1. Salesforce
  2. Discourse
  3. Pardot

Companies like ITRS also use

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

Companies with a stack like ITRS's

Ranked by shared tools, with rare tools counting more.

More Software companies

Other Software companies we've checked.

ITRS tech stack FAQ

What tools does ITRS use?

As of October 2026, runsonwhat has found 25 tools at ITRS (itrsgroup.com) in public records. Edge & Hosting: Amazon Web Services, Amazon Route 53 and Microsoft Azure. Application: jQuery, OpenAI and Algolia. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: Google Ads, LinkedIn Insight Tag and HubSpot. Company Ops: Microsoft 365, Atlassian and Exclaimer. Last checked October 7, 2026.

What cloud does ITRS run on?

ITRS uses Amazon Web Services for hosting and cloud infrastructure, alongside Microsoft Azure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services and code on itrsgroup.com. Amazon Web Services is used by 144,498 companies runsonwhat tracks.

What CRM does ITRS use?

ITRS uses HubSpot for its CRM, alongside Salesforce and Apollo.io, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on itrsgroup.com. HubSpot is used by 91,245 companies runsonwhat tracks.

What email provider does ITRS use?

ITRS uses Microsoft 365 for email and office software, alongside Exclaimer, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 697,010 companies runsonwhat tracks.

What does ITRS use for customer support?

ITRS uses Zendesk for customer support and documentation, alongside Discourse, according to runsonwhat (October 2026). runsonwhat found Zendesk through email records that authorize Zendesk and code on itrsgroup.com. Zendesk is used by 40,537 companies runsonwhat tracks.

What analytics tools does ITRS use?

ITRS uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on itrsgroup.com. Google Analytics is used by 845,043 companies runsonwhat tracks.

How long has ITRS used Salesforce?

ITRS has used Salesforce since at least April 2020, going by the first public certificate of the itrsgroup.com subdomain that points at Salesforce. Other long-running tools at ITRS include Discourse (since November 2021) and Pardot (since December 2022).

Does ITRS use jQuery?

Yes. runsonwhat found jQuery at ITRS through jQuery code on itrsgroup.com. jQuery is a Frontend tool used by 892,942 companies runsonwhat tracks.

Does ITRS use AI tools?

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

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

The companies with the stacks most like ITRS' are Coralogix, Bitwarden, Sigma Computing and Neo4j, according to runsonwhat (October 2026). Each shares 10 to 16 tools with ITRS, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what ITRS uses?

runsonwhat reads public records only. Of the 25 tools at ITRS, 9 were found through code on itrsgroup.com, 8 through DNS records, 4 through subdomains that point at the vendor and 4 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and itrsgroup.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.