Case studies for successful service (project) based software development businesses without constant overtime from its employees was recently closed as off topic.
However I believe that the question is on topic. It relates to business issues as defined in the FAQ and it is specifically related to case studies for successful software development businesses.
This question is materially different than other general questions about forced overtime as the steps, procedures, and policies that would apply to a successful software development would not necessarily apply to other businesses.
Is this question truly off topic? If not can it be reopened. If it is, how can it be improved to make it more on topic. While the accepted answer does not specifically list any case studies the accuracy of the predication was uncanny and I believe that it was helpful to me and I hope that it might be helpful to others that find themselves in a similar situation.