Stacks
What US tech companies run
Companies based in the United States: 129 of the 252 companies with a Stackprint page, from their live sites and public job posts. Last crawl 17 Sept 2026.
Compared with all 252, they lean on Scala 2.0×, Temporal 2.0×, PostHog 2.0×, Apache Flink 2.0× and ClickHouse 2.0×.
Hosting
CDN & edge
Databases
Streaming and queues
Infrastructure
Languages
Frameworks
CMS & site builders
Headless content
Analytics
Monitoring
Payments
The companies
- Airbnb
- Airbyte
- Airtable
- Amplitude
- Anthropic
- Asana
- Auth0
- BigCommerce
- Bitwarden
- Brex
- Bun
- Cal.com
- Calendly
- Chargebee
- Clerk
- ClickHouse
- ClickUp
- Cloudflare
- Cloudinary
- Cockroach Labs
- Convex
- Coursera
- Cursor
- Daily
- Databricks
- Datadog
- Deel
- Deno
- DigitalOcean
- Directus
- Discord
- Docker
- DoorDash
- Dropbox
- Duolingo
- Elastic
- ElevenLabs
- Etsy
- Figma
- Fivetran
- Fly.io
- GitHub
- GitLab
- Grafana Labs
- Gumroad
- HashiCorp
- Heap
- Heroku
- Honeycomb
- HubSpot
- Hugging Face
- Inngest
- Instacart
- Khan Academy
- Kickstarter
- LaunchDarkly
- Lemon Squeezy
- Linear
- LiveKit
- Loom
- Mailgun
- Medium
- Mercury
- Metabase
- Mixpanel
- MongoDB
- Mux
- Neon
- Netflix
- Netlify
- Notion
- OpenAI
- Patreon
- Perplexity
- Plaid
- PlanetScale
- PostHog
- Postmark
- Product Hunt
- Pulumi
- Railway
- Ramp
- Redis
- Render
- Replicate
- Replit
- Resend
- Retool
- Rippling
- Runway
- Salesforce
- Segment
- SendGrid
- Sentry
- Slack
- Snowflake
- Squarespace
- Stack Overflow
- StackBlitz
- StackShare
- Stripe
- Stytch
- Substack
- Supabase
- Superhuman
- Tailwind CSS
- Temporal
- Timescale
- Together AI
- Turso
- Twilio
- Typesense
- Uber
- Upstash
- Vercel
- Warp
- Webflow
- WordPress.com
- WorkOS
- Y Combinator
- Zapier
- Zed
- Zendesk
- Zoom
- dbt Labs
- imgix
- ngrok
The × figure compares how common a tool is in this group with how common it is across all 252 companies with a page. It describes our seed list, not the whole market.