Circle B's tech stack
What does Circle B use?
Circle B (circleb.eu) uses at least 10 tools we can see from public records, including Microsoft 365 for email and documents, HubSpot for sales, HubSpot CMS for its website and Brevo for marketing. Last checked .
- Industry
- IT Services
- Size
- 51–200 employees
- Based in
- Schiphol-Rijk, Netherlands
- Founded
- 2015
- Company page
- Tools found
- 10
- Categories
- 5
- Layers
- 2 of 5
- Last checked
- Oct 2026
Circle B'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.
Go-to-market
6 tools, how they find and keep customers
Website & CMS
Sales & CRM
Company Ops
4 tools, what the team runs on day to day
Dev Tools
Circle B tech stack FAQ
What tools does Circle B use?
As of October 2026, runsonwhat has found 10 tools at Circle B (circleb.eu) in public records. Go-to-market: HubSpot, Brevo and Zoho. Company Ops: Microsoft 365, Google Workspace and Atlassian. Last checked October 16, 2026.
What CRM does Circle B use?
Circle B uses HubSpot for its CRM, alongside Zoho, according to runsonwhat (October 2026). runsonwhat found HubSpot through a subdomain that points at HubSpot and email records. HubSpot is used by 92,110 companies runsonwhat tracks.
What email provider does Circle B use?
Circle B uses Microsoft 365 for email and office software, alongside Google Workspace and Exclaimer, 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 701,710 companies runsonwhat tracks.
What is Circle B's website built with?
Circle B uses HubSpot CMS for its website, according to runsonwhat (October 2026). runsonwhat found HubSpot CMS through a subdomain that points at HubSpot CMS. HubSpot CMS is used by 32,788 companies runsonwhat tracks.
What marketing software does Circle B use?
Circle B uses Brevo for marketing, alongside Ahrefs, according to runsonwhat (October 2026). runsonwhat found Brevo through a DNS verification record for Brevo and email records. Brevo is used by 78,303 companies runsonwhat tracks.
Does Circle B use Atlassian?
Yes. runsonwhat found Atlassian at Circle B through a DNS verification record for Atlassian. Atlassian is a Dev Tools tool used by 65,157 companies runsonwhat tracks.
How does runsonwhat know what Circle B uses?
runsonwhat reads public records only. Of the 10 tools at Circle B, 6 were found through DNS records, 2 through email records and 2 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and circleb.eu about 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.