runsonwhat

F6S's tech stack

What does F6S use?

F6S (f6s.com) uses at least 20 tools we can see from public records, including Microsoft 365 for email and documents, HubSpot for sales, Freshdesk for customer support and Mailchimp for marketing. Last checked .

Industry
Startup Ecosystem
Based in
United Kingdom
Founded
2013
Re-check liveVisit f6s.com
Tools found
20
Categories
9
Layers
3 of 5
Last checked
Oct 2026

F6S'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

CDN & Edge

DNS

Go-to-market

6 tools, how they find and keep customers

Marketing

Sales & CRM

Support & Docs

Company Ops

12 tools, what the team runs on day to day

Email Delivery

Workspace

Dev Tools

Security & Compliance

Companies like F6S also use

Tools common among companies with a similar stack that we haven't found at F6S.

Companies with a stack like F6S's

Ranked by shared tools, with rare tools counting more.

F6S tech stack FAQ

What tools does F6S use?

We've found 20 tools at F6S (f6s.com). Edge & Hosting: Amazon Route 53 and Amazon CloudFront. Go-to-market: HubSpot, Mailchimp and Freshdesk. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 3, 2026.

What CRM does F6S use?

F6S uses HubSpot for sales and CRM. We found HubSpot through email records.

What email provider does F6S use?

F6S uses Microsoft 365 and Google Workspace for email and documents. We found Microsoft 365 through DNS verification records.

What does F6S use for customer support?

F6S uses Freshdesk and Stoplight for customer support. We found Freshdesk through email records.

What marketing software does F6S use?

F6S uses Mailchimp and Ahrefs for marketing. We found Mailchimp through email records.

Does F6S use Microsoft 365?

Yes. We found Microsoft 365 at F6S through DNS verification records. Microsoft 365 is used by 245,233 companies we track.

How does runsonwhat know what F6S uses?

We read public traces only: F6S'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.