Looking for contacts specific to Sphones, iPads & tablet case companies

Hi Folks,

A local upstart has produced an accessory to the smart phone, iPad & tablet case market - both hard & soft cases. We are working towards getting the working models in front of the right audience and so, we are working multiple approaches.

That said, if anyone can offer up a contact for any of the following - it would be most appreciated. Pretty much all of these companies do not have a 'general public' option of getting their attention and strictly focus on internal & industry-specific ways of contacting them (industry product development teams, CES, etc).

PM & thanks in advance!

Otterbox
LifeProof
Case Logic
Manufacturing firms producing related products