# What does CSG Systems International, Inc. use? CSG Systems International, Inc. (csgi.com) shows public evidence of 38 tools, according to runsonwhat (last checked 2026-10-10). - Based in: Englewood, United States - Founded: 1994 - LinkedIn: https://www.linkedin.com/company/csg- ## 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 | Custom domain | 2018-02 | | [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | Custom domain, DNS verification records, Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code | | | [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code | | | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code | | | [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | DNS verification records, Website code | | | [Wistia](https://www.runsonwhat.com/reverse/wistia) | Media & UI | Website code | | | [Algolia](https://www.runsonwhat.com/reverse/algolia) | Search | Website code | | ## 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 | | | [Contentsquare](https://www.runsonwhat.com/reverse/contentsquare) | Analytics | Website code | | | [Dynamics 365 Customer Voice](https://www.runsonwhat.com/reverse/dynamics-365-customer-voice) | Analytics | DNS verification records | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [Pardot](https://www.runsonwhat.com/reverse/pardot) | Marketing | DNS verification records, Website code | | | [LiveRamp](https://www.runsonwhat.com/reverse/liveramp) | Ads & Pixels | Website code | | | [Freshdesk](https://www.runsonwhat.com/reverse/freshdesk) | Support & Docs | Website code | | | [Demandbase](https://www.runsonwhat.com/reverse/demandbase) | Sales & CRM | Website code | | | [Contentful](https://www.runsonwhat.com/reverse/contentful) | Website & CMS | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records | | | [Proofpoint](https://www.runsonwhat.com/reverse/proofpoint) | Security & Compliance | Email records | | | [UserWay](https://www.runsonwhat.com/reverse/userway) | Security & Compliance | Website code | | | [Miro](https://www.runsonwhat.com/reverse/miro) | Collaboration | DNS verification records | | | [Smartsheet](https://www.runsonwhat.com/reverse/smartsheet) | Collaboration | DNS verification records | | | [Jamf](https://www.runsonwhat.com/reverse/jamf) | Security & Compliance | DNS verification records | | | [Cursor](https://www.runsonwhat.com/reverse/cursor) | Dev Tools | DNS verification records | | | [Docker](https://www.runsonwhat.com/reverse/docker) | Dev Tools | DNS verification records | | | [Postman](https://www.runsonwhat.com/reverse/postman) | Dev Tools | DNS verification records | | | [Citrix](https://www.runsonwhat.com/reverse/citrix) | Dev Tools | DNS verification records | | | [Securiti](https://www.runsonwhat.com/reverse/securiti) | Security & Compliance | Website code | | | [Phenom](https://www.runsonwhat.com/reverse/phenom) | People & HR | Custom domain | 2017-09 | ## FAQ ### What tools does CSG Systems International use? As of October 2026, runsonwhat has found 38 tools at CSG Systems International (csgi.com) in public records. Edge & Hosting: Cloudflare, WP Engine and Vercel. Application: Vimeo, YouTube and React. Data & Observability: Google Analytics, Google Tag Manager and Contentsquare. Go-to-market: Google Ads, LinkedIn Insight Tag and Pardot. Company Ops: Microsoft 365, SendGrid and Apple Business. Last checked October 10, 2026. ### What cloud does CSG Systems International run on? CSG Systems International uses WP Engine for hosting and cloud infrastructure, alongside Vercel, according to runsonwhat (October 2026). runsonwhat found WP Engine through a subdomain that points at WP Engine, and CSG Systems International has used it since at least February 2018. WP Engine is used by 49,988 companies runsonwhat tracks. ### What sales tools does CSG Systems International use? The sales tools runsonwhat has found at CSG Systems International are Demandbase (October 2026); no CRM shows up in CSG Systems International's public records. runsonwhat found Demandbase through Demandbase code on csgi.com. Demandbase is used by 9,411 companies runsonwhat tracks. ### What email provider does CSG Systems International use? CSG Systems International uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 694,681 companies runsonwhat tracks. ### What does CSG Systems International use for customer support? CSG Systems International uses Freshdesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Freshdesk through Freshdesk code on csgi.com. Freshdesk is used by 12,025 companies runsonwhat tracks. ### What payment provider does CSG Systems International use? CSG Systems International uses Stripe for payments and billing, according to runsonwhat (October 2026). runsonwhat found Stripe through a DNS verification record for Stripe and code on csgi.com. Stripe is used by 25,711 companies runsonwhat tracks. ### How long has CSG Systems International used Phenom? CSG Systems International has used Phenom since at least September 2017, going by the first public certificate of the csgi.com subdomain that points at Phenom. Other long-running tools at CSG Systems International include WP Engine (since February 2018). ### Does CSG Systems International use Cloudflare? Yes. runsonwhat found Cloudflare at CSG Systems International through Cloudflare code on csgi.com. Cloudflare is a CDN & Edge tool used by 687,385 companies runsonwhat tracks. ### Which companies have a tech stack similar to CSG Systems International's? The companies with the stacks most like CSG Systems International's are Vontier, Associa, Panera Bread and Driven Brands, according to runsonwhat (October 2026). Each shares 11 to 15 tools with CSG Systems International, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what CSG Systems International uses? runsonwhat reads public records only. Of the 38 tools at CSG Systems International, 18 were found through code on csgi.com, 14 through DNS records, 3 through email records and 3 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and csgi.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/csgi.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.