Calpine's tech stack
What does Calpine use?
Calpine (calpine.com) uses at least 25 tools we can see from public records, including Microsoft Azure for hosting, Microsoft 365 for email and documents, Google Analytics for analytics and WordPress for its website. Last checked .
- Industry
- Utilities
- Size
- 1,001–5,000 employees
- Based in
- Houston, United States
- Founded
- 1984
- Company page
- Tools found
- 25
- Categories
- 15
- Layers
- 5 of 5
- Last checked
- Oct 2026
Calpine'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
2 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
4 tools, what the product is built with
Frontend
Data & Observability
3 tools, what they measure and store
Monitoring
Go-to-market
5 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Company Ops
11 tools, what the team runs on day to day
Email Delivery
Workspace
Dev Tools
Finance & Legal
Security & Compliance
Calpine tech stack FAQ
What tools does Calpine use?
We've found 25 tools at Calpine (calpine.com). Edge & Hosting: Microsoft Azure and Fastly. Application: jQuery, Vimeo and YouTube. Data & Observability: Google Analytics, Google Tag Manager and New Relic. Go-to-market: Google Ads, WordPress and Yoast SEO. Company Ops: Microsoft 365, Apple Business and Atlassian. Last checked October 3, 2026.
What cloud does Calpine run on?
Calpine uses Microsoft Azure for hosting. We found Microsoft Azure through DNS records.
What email provider does Calpine use?
Calpine uses Microsoft 365 and Apple Business for email and documents. We found Microsoft 365 through DNS verification records and email records.
What analytics tools does Calpine use?
Calpine uses Google Analytics and Google Tag Manager for analytics. We found Google Analytics through website code.
What CMS does Calpine use?
Calpine uses WordPress and Yoast SEO for its website. We found WordPress through website code.
What marketing software does Calpine use?
Calpine uses Iterable for marketing. We found Iterable through custom domain.
Does Calpine use Microsoft 365?
Yes. We found Microsoft 365 at Calpine through DNS verification records and email records. Microsoft 365 is used by 245,233 companies we track.
How does runsonwhat know what Calpine uses?
We read public traces only: Calpine'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.