Primary's tech stack
What does Primary use?
Primary (primary.io) uses at least 6 tools we can see from public records, including Microsoft 365 for email and documents, Mailchimp for marketing, Cloudflare for content delivery and Amazon SES for email delivery. Last checked .
- Industry
- Computer Networking
- Size
- 51–200 employees
- Based in
- Berlin, Germany
- Founded
- 2018
- Company page
- Tools found
- 6
- Categories
- 4
- Layers
- 3 of 5
- Last checked
- Oct 2026
Primary'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
1 tool, where the bytes are served from
CDN & Edge
Go-to-market
2 tools, how they find and keep customers
Company Ops
3 tools, what the team runs on day to day
Email Delivery
Primary tech stack FAQ
What tools does Primary use?
As of October 2026, runsonwhat has found 6 tools at Primary (primary.io) in public records. Edge & Hosting: Cloudflare. Go-to-market: Mailchimp. Company Ops: Microsoft 365, Google Workspace and Amazon SES. Last checked October 5, 2026.
What email provider does Primary use?
Primary uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 693,204 companies runsonwhat tracks.
What marketing software does Primary use?
Primary uses Mailchimp for marketing, according to runsonwhat (October 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 111,060 companies runsonwhat tracks.
Does Primary use Cloudflare?
Yes. runsonwhat found Cloudflare at Primary through DNS records that point at Cloudflare and code on primary.io. Cloudflare is a CDN & Edge tool used by 674,854 companies runsonwhat tracks.
How does runsonwhat know what Primary uses?
runsonwhat reads public records only. Of the 6 tools at Primary, 4 were found through DNS records, 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and primary.io 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.