Calculus's tech stack
What does Calculus use?
Calculus (calculus.group) uses at least 19 tools we can see from public records, including Microsoft 365 for email and documents, Zendesk for customer support, Google Analytics for analytics and SendGrid for email delivery. Last checked .
- Industry
- IT Services
- Size
- 11–50 employees
- Based in
- Genk, Belgium
- Founded
- 2017
- Company page
- Tools found
- 19
- Categories
- 11
- Layers
- 4 of 5
- Last checked
- Oct 2026
Calculus'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.
Application
4 tools, what the product is built with
Data & Observability
2 tools, what they measure and store
Go-to-market
4 tools, how they find and keep customers
Marketing
Ads & Pixels
Support & Docs
Company Ops
9 tools, what the team runs on day to day
Email Delivery
Workspace
Finance & Legal
Calculus tech stack FAQ
What tools does Calculus use?
As of November 2026, runsonwhat has found 19 tools at Calculus (calculus.group) in public records. Application: jQuery, Google Fonts and Font Awesome. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: Meta Pixel, Microsoft Ads and Zendesk. Company Ops: Microsoft 365, reCAPTCHA and SendGrid. Last checked October 31, 2026.
What email provider does Calculus use?
Calculus uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 724,019 companies runsonwhat tracks.
What does Calculus use for customer support?
Calculus uses Zendesk for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Zendesk through email records that authorize Zendesk and code on calculus.group. Zendesk is used by 43,176 companies runsonwhat tracks.
What analytics tools does Calculus use?
Calculus uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on calculus.group. Google Analytics is used by 906,245 companies runsonwhat tracks.
Does Calculus use jQuery?
Yes. runsonwhat found jQuery at Calculus through jQuery code on calculus.group. jQuery is a Frontend tool used by 930,147 companies runsonwhat tracks.
Does Calculus use AI tools?
Yes. runsonwhat has found OpenAI at Calculus; OpenAI, for example, through a DNS verification record for OpenAI. AI services called only from servers leave no public trace, so Calculus may use more AI tools than these.
How does runsonwhat know what Calculus uses?
runsonwhat reads public records only. Of the 19 tools at Calculus, 8 were found through code on calculus.group, 8 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 calculus.group 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.