runsonwhat

Circa's tech stack

What does Circa use?

Circa (circa.co) uses at least 13 tools we can see from public records, including Google Workspace for email and documents, Mixmax for sales, Stripe for payments and Webflow for its website. Last checked .

Industry
Marketing
Size
11–50 employees
Based in
Boston, United States
LinkedIn
Company page
Re-check liveVisit circa.co
Tools found
13
Categories
11
Layers
4 of 5
Last checked
Oct 2026

Circa'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

Payments & Billing

Go-to-market

5 tools, how they find and keep customers

Website & CMS

Marketing

Sales & CRM

Company Ops

5 tools, what the team runs on day to day

Email Delivery

Workspace

Collaboration

Dev Tools

Security & Compliance

Companies like Circa also use

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

Companies with a stack like Circa's

Ranked by shared tools, with rare tools counting more.

Circa tech stack FAQ

What tools does Circa use?

As of October 2026, runsonwhat has found 13 tools at Circa (circa.co) in public records. Edge & Hosting: Cloudflare. Application: jQuery and Stripe. Go-to-market: Mailchimp, Webflow and Marketo. Company Ops: Google Workspace, reCAPTCHA and SendGrid. Last checked October 9, 2026.

What sales tools does Circa use?

The sales tools runsonwhat has found at Circa are Mixmax (October 2026); no CRM shows up in Circa's public records. runsonwhat found Mixmax through a subdomain that points at Mixmax. Mixmax is used by 20 companies runsonwhat tracks.

What email provider does Circa use?

Circa uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 397,531 companies runsonwhat tracks.

What payment provider does Circa use?

Circa uses Stripe for payments and billing, according to runsonwhat (October 2026). runsonwhat found Stripe through a DNS verification record for Stripe. Stripe is used by 26,316 companies runsonwhat tracks.

What is Circa's website built with?

Circa uses Webflow for its website, according to runsonwhat (October 2026). runsonwhat found Webflow through Webflow code on circa.co. Webflow is used by 34,289 companies runsonwhat tracks.

What marketing software does Circa use?

Circa uses Mailchimp for marketing, alongside Marketo, according to runsonwhat (October 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 113,200 companies runsonwhat tracks.

Does Circa use jQuery?

Yes. runsonwhat found jQuery at Circa through jQuery code on circa.co. jQuery is a Frontend tool used by 897,103 companies runsonwhat tracks.

Which companies have a tech stack similar to Circa's?

The companies with the stacks most like Circa's are Routable, Cognito, True and Brex, according to runsonwhat (October 2026). Each shares 5 to 7 tools with Circa, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what Circa uses?

runsonwhat reads public records only. Of the 13 tools at Circa, 5 were found through DNS records, 3 through code on circa.co, 3 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 circa.co 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.