SonarSource delivers what is probably the best static code analysis you can find for TypeScript. Based on Microsoft's open-source TypeScript compiler front-end, it uses the most advanced techniques (pattern matching, program flow analysis) to analyze code and find Code Smells, Bugs, and Security Vulnerabilities. As with everything we develop at SonarSource, it was built on the principles of depth, accuracy, and speed.
SonarSource's TypeScript analysis has a great coverage of well-established quality standards. This capability is available throughout the development chain for automated code review with self-hosted SonarQube or cloud-based SonarCloud.