Please address the intent of the question.

Correctly stated by SuperCat that all programs will allow companies to "own" the miles, though most companies struggle with the process since most accounts are "spoiled" these days with a mixture of personal and business miles. I have done major work on this issues for quite a few years and can help draw a strong argument either way. If you'd like to scare the management, I can provide you with an interesting court case in which a frequent flyer successfully sued the company who started to require employees to turn over their miles and I can also provide you with the legal basis on how an organization can successfully "own" employee miles. The real answer is that all domestic airlines won't help any company "manage" their miles.

Looking forward to more dialog on the orginal question only.