a21's tech stack
What does a21 use?
a21 (teama21.com) uses at least 20 tools we can see from public records, including WP Engine for hosting, Salesforce for sales, Matomo for analytics and Mailchimp Transactional for email delivery. Last checked .
- Industry
- Events Services
- Size
- 51–200 employees
- Based in
- Miami, United States
- Founded
- 2006
- Company page
- Tools found
- 20
- Categories
- 14
- Layers
- 5 of 5
- Last checked
- Nov 2026
a21's stack, layer by layer
Of 20 tools, 11 came from website code, 4 from DNS verification records, 3 from email records and 2 from other records. 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
3 tools, where the bytes are served from
Application
3 tools, what the product is built with
Frontend
Media & UI
Data & Observability
4 tools, what they measure and store
Go-to-market
5 tools, how they find and keep customers
Website & CMS
Marketing
Ads & Pixels
Sales & CRM
Company Ops
5 tools, what the team runs on day to day
Email Delivery
Workspace
Finance & Legal
Security & Compliance
a21 tech stack FAQ
What tools does a21 use?
As of November 2026, runsonwhat has found 20 tools at a21 (teama21.com) in public records. Edge & Hosting: Cloudflare, GoDaddy and WP Engine. Application: GSAP, Tailwind CSS and Three.js. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: WordPress, Google Ads and Yoast SEO. Company Ops: Microsoft 365, SendGrid and Mailchimp Transactional. Last checked November 14, 2026.
What cloud does a21 run on?
a21 uses WP Engine for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found WP Engine through a subdomain that points at WP Engine and code on teama21.com. WP Engine is used by 52,465 companies runsonwhat tracks.
What CRM does a21 use?
a21 uses Salesforce for its CRM, according to runsonwhat (November 2026). runsonwhat found Salesforce through email records that authorize Salesforce and code on teama21.com. Salesforce is used by 35,590 companies runsonwhat tracks.
What email provider does a21 use?
a21 uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 737,870 companies runsonwhat tracks.
What analytics tools does a21 use?
a21 uses Google Analytics for analytics, alongside Google Tag Manager, Microsoft Clarity and Matomo, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on teama21.com. Google Analytics is used by 904,283 companies runsonwhat tracks.
What is a21's website built with?
a21 uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (November 2026). runsonwhat found WordPress through WordPress code on teama21.com. WordPress is used by 606,995 companies runsonwhat tracks.
Does a21 use Cloudflare?
Yes. runsonwhat found Cloudflare at a21 through Cloudflare code on teama21.com. Cloudflare is a CDN & Edge tool used by 736,361 companies runsonwhat tracks.
How does runsonwhat know what a21 uses?
runsonwhat reads public records only. Of the 20 tools at a21, 11 were found through code on teama21.com, 5 through DNS records, 3 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and teama21.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.