# What does Calculus use?

Calculus (calculus.group) shows public evidence of 19 tools, according to runsonwhat (last checked 2026-10-31).

- Industry: IT Services
- Size: 11–50 employees
- Based in: Genk, Belgium
- Founded: 2017
- LinkedIn: https://www.linkedin.com/company/calculusgroup

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code |  |
| [Font Awesome](https://www.runsonwhat.com/reverse/fontawesome) | Media & UI | Website code |  |
| [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |
| [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | DNS verification records |  |
| [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code |  |
| [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Email records, Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records, Website code |  |
| [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records |  |
| [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records |  |
| [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records |  |
| [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records |  |
| [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records |  |
| [iubenda](https://www.runsonwhat.com/reverse/iubenda) | Security & Compliance | Website code |  |
| [Odoo](https://www.runsonwhat.com/reverse/odoo) | Finance & Legal | Email records |  |

## 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 724,316 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 43,188 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 906,268 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 930,171 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.


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Source: runsonwhat, https://www.runsonwhat.com/company/calculus.group (updated November 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.