I am an ex-teacher starting a new company running DofE for Schools and independent pupils (open expeditions). I would be very interested to hear from parents about what their needs are eg. confidence,convenient times, communication etc http://resilienceeducationn.ipage.com/index.html
My DD did her bronze practice expedition with an open company simply because she had to be at a wedding on the day school did their practice. She did the "proper" expedition with school, as she had caught up.
The company we used was recommended by her school.