Circleback's tech stack
What does Circleback use?
Circleback (circleback.ai) uses at least 14 tools we can see from public records, including Vercel for hosting, Microsoft 365 for email and documents, Intercom for customer support and PostHog for analytics. Last checked .
“AI-powered meeting notes and automations”
- Industry
- Productivity
- Size
- 1–10 employees
- Based in
- San Francisco, United States
- Company page
- Tools found
- 14
- Categories
- 11
- Layers
- 5 of 5
- Last checked
- Oct 2026
Circleback'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
3 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
2 tools, what the product is built with
Frontend
Data & Observability
2 tools, what they measure and store
Monitoring
Analytics
Go-to-market
2 tools, how they find and keep customers
Marketing
Support & Docs
Company Ops
5 tools, what the team runs on day to day
Email Delivery
Security & Compliance
Companies like Circleback also use
Tools common among companies with a similar stack that we haven't found at Circleback.
Companies with a stack like Circleback's
Ranked by shared tools, with rare tools counting more.
TellaProductivity · 1–10 people9in common
OctolaneSales · 1–10 people11in common
HopliteEngineering, Product and Design · 1–10 people8in common
Momentic AIEngineering, Product and Design · 11–50 people8in common
AnaraProductivity · 1–10 people10in common
CapyEngineering, Product and Design · 1–10 people7in common
KiteMarketing · 1–10 people3in common
OnlookEngineering, Product and Design · 1–10 people5in common
More Productivity companies
Other Productivity companies we've checked.
Circleback tech stack FAQ
What tools does Circleback use?
We've found 14 tools at Circleback (circleback.ai). Edge & Hosting: Cloudflare, Vercel and Google Cloud. Application: Next.js. Data & Observability: PostHog and incident.io. Go-to-market: Intercom and Dub. Company Ops: Microsoft 365, Google Workspace and Valimail. Last checked October 2, 2026.
What cloud does Circleback run on?
Circleback uses Vercel and Google Cloud for hosting. We found Vercel through custom domain, DNS verification records, DNS records and website code.
What email provider does Circleback use?
Circleback uses Microsoft 365 and Google Workspace for email and documents. We found Microsoft 365 through DNS verification records.
What does Circleback use for customer support?
Circleback uses Intercom for customer support. We found Intercom through email records.
What analytics tools does Circleback use?
Circleback uses PostHog for analytics. We found PostHog through custom domain.
What marketing software does Circleback use?
Circleback uses Dub for marketing. We found Dub through custom domain and website code.
Does Circleback use Microsoft 365?
Yes. We found Microsoft 365 at Circleback through DNS verification records. Microsoft 365 is used by 245,233 companies we track.
How does runsonwhat know what Circleback uses?
We read public traces only: Circleback'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.