not in most startups... I don't see anyone here getting into defence contracting any time soon.
Granted, there are some common sense aspects that are slam dunks (c'mon, version control, why wouldn't you use it) but a lot of it still favours serious software where all the engineers wear dark suits and ties and do big design up front.
Most startups would run out of time and money just getting to level 2 CMMi compliance before they even started to really cut any code.