The YC Growth Program is designed for founder-CEOs who are leading rapidly growing companies approaching 50 employees. The program focuses on specific issues that every startup has to overcome in order to scale successfully—while also helping founders build relationships with others who are facing similar challenges.
The program is run by the YC Continuity team. There is a short application to complete and participation in the program is free. It costs founders nothing other than their time. There are three batches per year and the application is posted a few months before each batch.