# What does CSI use?

CSI (csiinc.com) shows public evidence of 18 tools, according to runsonwhat (last checked 2026-10-25).

- Industry: IT Services
- Size: 11–50 employees
- Based in: Pittsburgh, United States
- Founded: 1991
- LinkedIn: https://www.linkedin.com/company/communityandsystemsinnovation

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code |  |
| [WP Engine](https://www.runsonwhat.com/reverse/wpengine) | Hosting & Cloud | Website code |  |
| [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | DNS records |  |

## 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 |  |
| [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |
| [Calendly](https://www.runsonwhat.com/reverse/calendly) | Sales & CRM | Website code |  |
| [Scroll Viewport](https://www.runsonwhat.com/reverse/k15t) | Support & Docs | Custom domain |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, DNS verification records |  |
| [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records |  |
| [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records |  |
| [Barracuda](https://www.runsonwhat.com/reverse/barracuda) | Security & Compliance | Email records |  |
| [Have I Been Pwned](https://www.runsonwhat.com/reverse/hibp) | Security & Compliance | DNS verification records |  |

## FAQ

### What tools does CSI use?

As of October 2026, runsonwhat has found 18 tools at CSI (csiinc.com) in public records. Edge & Hosting: Cloudflare, WP Engine and Microsoft Azure. Application: jQuery, Google Fonts and Font Awesome. Go-to-market: WordPress, Yoast SEO and Calendly. Company Ops: Microsoft 365, reCAPTCHA and SendGrid. Last checked October 25, 2026.

### What cloud does CSI run on?

CSI uses WP Engine for hosting and cloud infrastructure, alongside Microsoft Azure, according to runsonwhat (October 2026). runsonwhat found WP Engine through WP Engine code on csiinc.com. WP Engine is used by 51,371 companies runsonwhat tracks.

### What sales tools does CSI use?

The sales tools runsonwhat has found at CSI are Calendly (October 2026); no CRM shows up in CSI's public records. runsonwhat found Calendly through Calendly code on csiinc.com. Calendly is used by 28,479 companies runsonwhat tracks.

### What email provider does CSI use?

CSI 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 712,905 companies runsonwhat tracks.

### What does CSI use for customer support?

CSI uses Scroll Viewport for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Scroll Viewport through a subdomain that points at Scroll Viewport. Scroll Viewport is used by 247 companies runsonwhat tracks.

### What is CSI's website built with?

CSI uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on csiinc.com. WordPress is used by 599,188 companies runsonwhat tracks.

### Does CSI use jQuery?

Yes. runsonwhat found jQuery at CSI through jQuery code on csiinc.com. jQuery is a Frontend tool used by 918,694 companies runsonwhat tracks.

### Which companies have a tech stack similar to CSI's?

The companies with the stacks most like CSI's are Spendgo, automatics.AI, Appmiral Event Apps and ESQ Data Solutions, according to runsonwhat (October 2026). Each shares 4 to 6 tools with CSI, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what CSI uses?

runsonwhat reads public records only. Of the 18 tools at CSI, 10 were found through code on csiinc.com, 4 through DNS records, 3 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and csiinc.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/csiinc.com (updated October 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.