Oracle Siebel CRM vs Twenty
Oracle Siebel CRM and Twenty are both CRM software. Oracle Siebel CRM is a commercial product from Oracle Corporation. Twenty is open source under a license set out in its repository, with 60k GitHub stars.
Which to pick
- Pick Oracle Siebel CRM when
- You already run Siebel and need to keep it supported while planning a migration.
- Pick Twenty when
- You want a modern alternative to Salesforce that your team can self-host, reshape around its own data model and extend through the API.
Side by side
Oracle's long-standing on-premise enterprise CRM for sales, service and marketing, still maintained for existing customers.
A CRM for tracking companies, people and deals, with custom objects and fields, email and calendar sync, workflows and a GraphQL and REST API.
It is legacy software; new projects should look at Oracle CX or other cloud CRMs.
Self-hosting means running Postgres, Redis and a worker, and some enterprise features sit under a separate commercial license rather than the AGPL.
Production-ready (both)
Self-hosted server
Self-hosted server and cloud service
Not published
TypeScript, NestJS, React, PostgreSQL and Redis
Closed source, sold by Oracle Corporation
Open source, license unclear on GitHub
Closed source: you use it under the maker's terms and cannot change or resell the code.
GitHub could not read the license. Check it in the repository before reusing any code.
No Wikipedia article of its own
60k GitHub stars
Not known
Established: started 3 years ago, latest release twenty/v2.54.0.
Other comparisons
More CRM software
Both sides were judged on 2026-11-03 from makers' descriptions, Wikipedia, READMEs and GitHub data. License, age and popularity lines are worked out directly.