Close's tech stack
What does Close use?
Close (close.com) uses at least 46 tools we can see from public records, including Amazon Web Services for hosting, Microsoft 365 for email and documents, PartnerPage for sales and Zendesk for customer support. Last checked .
“CRM and sales automation tools for startups and SMBs”
- Industry
- Sales
- Size
- 51–200 employees
- Tools found
- 46
- Categories
- 18
- Layers
- 5 of 5
- Last checked
- Oct 2026
Close'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
5 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
7 tools, what the product is built with
Frontend
Payments & Billing
Media & UI
Data & Observability
6 tools, what they measure and store
Go-to-market
15 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Sales & CRM
Support & Docs
Company Ops
13 tools, what the team runs on day to day
Email Delivery
Close tech stack FAQ
What tools does Close use?
We've found 46 tools at Close (close.com). Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: jQuery, GSAP and Anthropic. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Google Workspace and Apple Business. Last checked October 2, 2026.
What cloud does Close run on?
Close uses Amazon Web Services and Vercel for hosting. We found Amazon Web Services through website code.
What CRM does Close use?
Close uses PartnerPage for sales and CRM. We found PartnerPage through custom domain.
What email provider does Close use?
Close uses Microsoft 365, Google Workspace and Apple Business for email and documents. We found Microsoft 365 through DNS verification records.
What does Close use for customer support?
Close uses Zendesk for customer support. We found Zendesk through email records and website code.
What payment provider does Close use?
Close uses Stripe for payments. We found Stripe through DNS verification records and website code.
Does Close use Microsoft 365?
Yes. We found Microsoft 365 at Close through DNS verification records. Microsoft 365 is used by 432,975 companies we track.
How does runsonwhat know what Close uses?
We read public traces only: Close'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.