Critical Software's tech stack
What does Critical Software use?
Critical Software (criticalsoftware.com) uses at least 16 tools we can see from public records, including Microsoft 365 for email and documents, HubSpot for sales, Google Analytics for analytics and HubSpot CMS for its website. Last checked .
- Industry
- Software
- Based in
- Portugal
- Founded
- 1998
- Company page
- Tools found
- 16
- Categories
- 10
- Layers
- 5 of 5
- Last checked
- Oct 2026
Critical Software'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
Application
5 tools, what the product is built with
Data & Observability
2 tools, what they measure and store
Go-to-market
3 tools, how they find and keep customers
Company Ops
5 tools, what the team runs on day to day
Workspace
Security & Compliance
Critical Software tech stack FAQ
What tools does Critical Software use?
We've found 16 tools at Critical Software (criticalsoftware.com). Edge & Hosting: Cloudflare. Application: Google Fonts, React and Anthropic. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: HubSpot and HubSpot CMS. Company Ops: Microsoft 365, reCAPTCHA and Apple Business. Last checked October 3, 2026.
What CRM does Critical Software use?
Critical Software uses HubSpot for sales and CRM. We found HubSpot through custom domain, email records and website code.
What email provider does Critical Software use?
Critical Software uses Microsoft 365 and Apple Business for email and documents. We found Microsoft 365 through email records.
What analytics tools does Critical Software use?
Critical Software uses Google Analytics and Google Tag Manager for analytics. We found Google Analytics through website code.
What CMS does Critical Software use?
Critical Software uses HubSpot CMS for its website. We found HubSpot CMS through custom domain.
Does Critical Software use Microsoft 365?
Yes. We found Microsoft 365 at Critical Software through email records. Microsoft 365 is used by 685,699 companies we track.
How does runsonwhat know what Critical Software uses?
We read public traces only: Critical Software's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website 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.