C# vs Python
Python shows up at 64 of the 255 companies we track, C# at 4. 3 have both.
Counts come from DNS, response headers, page source and public job posts; a tool named in a single job post is not counted. They show adoption among companies developers look up, not market share. There is no signed verdict for this pair yet.
C#
4
companies (2% of those tracked)
Only C#
1 company, plus 3 with both
Usually paired with
Stripe (4), Kubernetes (4), React (3), Next.js (3), HubSpot (3)
Python
64
companies (25% of those tracked)
Only Python
61 companies, plus 3 with both
- Adyen
- Airbnb
- Alan
- Anthropic
- Brex
- Cabify
- Celonis
- ClickHouse
- Cloudflare
- Cognite
- Cohere
- Cursor
- Databricks
- Datadog
- Doctolib
- Duolingo
- Elastic
- ElevenLabs
- Fivetran
- GitLab
- GoCardless
- Grafana Labs
- HelloFresh
- ICEYE
- Intercom
- Legora
- Lovable
- Monzo
- N26
- Notion
- OpenAI
- Oura
- Perplexity
- Plaid
- Ramp
- Replit
- Sentry
- Snowflake
- Spotify
- and 21 more
Usually paired with
React (52), Kubernetes (50), Stripe (37), Amazon Web Services (35), Terraform (33)