Circlesquare's tech stack
What does Circlesquare use?
Circlesquare (circle-square.com) uses at least 9 tools we can see from public records, including Microsoft 365 for email and documents, Google Analytics for analytics, Webflow for its website and Cloudflare for content delivery. Last checked .
- Industry
- Marketing and Advertising
- Size
- 51–200 employees
- Based in
- London, United Kingdom
- Founded
- 2003
- Company page
- Tools found
- 9
- Categories
- 8
- Layers
- 5 of 5
- Last checked
- Oct 2026
Circlesquare'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
Application
2 tools, what the product is built with
Frontend
Media & UI
Data & Observability
2 tools, what they measure and store
Go-to-market
2 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Company Ops
2 tools, what the team runs on day to day
Workspace
Security & Compliance
Companies like Circlesquare also use
Tools common among companies with a similar stack that we haven't found at Circlesquare.
Companies with a stack like Circlesquare's
Ranked by shared tools, with rare tools counting more.
Plato Creative Design LimitedMarketing and Advertising · 51–200 people7in common
Relay TechnologiesConsumer Services · 51–200 people8in common
PromwadElectronics Engineering · 51–200 people7in common
Owner.comSoftware · 51–200 people8in common
One Finance, Inc.Financial Services · 51–200 people6in common
Atc (argo Turboserve Corporation)Logistics and Supply Chain · 51–200 people3in common
XsenseLogistics and Supply Chain · 51–200 people6in common
株式会社NOVARCAIT Services · 51–200 people7in common
More Marketing and Advertising companies
Other Marketing and Advertising companies we've checked.
Circlesquare tech stack FAQ
What tools does Circlesquare use?
As of October 2026, runsonwhat has found 9 tools at Circlesquare (circle-square.com) in public records. Edge & Hosting: Cloudflare. Application: jQuery and Lottie. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: Google Ads and Webflow. Company Ops: Microsoft 365 and Tailscale. Last checked October 7, 2026.
What email provider does Circlesquare use?
Circlesquare uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and code on circle-square.com. Microsoft 365 is used by 694,529 companies runsonwhat tracks.
What analytics tools does Circlesquare use?
Circlesquare uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on circle-square.com. Google Analytics is used by 811,476 companies runsonwhat tracks.
What is Circlesquare's website built with?
Circlesquare uses Webflow for its website, according to runsonwhat (October 2026). runsonwhat found Webflow through a subdomain that points at Webflow and code on circle-square.com. Webflow is used by 33,524 companies runsonwhat tracks.
Does Circlesquare use jQuery?
Yes. runsonwhat found jQuery at Circlesquare through jQuery code on circle-square.com. jQuery is a Frontend tool used by 857,110 companies runsonwhat tracks.
Which companies have a tech stack similar to Circlesquare's?
The companies with the stacks most like Circlesquare's are Plato Creative Design, Relay Technologies, Promwad and Owner.com, according to runsonwhat (October 2026). Each shares 7 to 8 tools with Circlesquare, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Circlesquare uses?
runsonwhat reads public records only. Of the 9 tools at Circlesquare, 6 were found through code on circle-square.com, 1 through email records, 1 through subdomains that point at the vendor and 1 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and circle-square.com 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.