2
Id say indie developers are the most likely ones that are going to require 3D. If a company is big enough and requires 3D regularly then they'll employ 3D artist. Whereas one or two guys creating a game or app themselves are going to to need 3D provided for them.
As for naming any indie devs that need 3D, i wouldnt even know where to start. Probably check Unity/ Unreal twitter as they retweet indie devs work quite often.
inXile Entertainment (which is an Indie Developer I think) is quite big. They did some sort of contest where people could model stuff and put it in the Unity Asset store, and if it was good enough for inXile Entertainment's game Wasteland 2, they would buy it. They raised nearly 3 million dollars on Kickstarter for Wasteland 2. Some more info about the whole thing for those interested: https://forum.unity3d.com/threads/crowdsourcing-assets-for-wasteland-2-on-the-unity-asset-store.161310/
I believe currently they are developing Wasteland 3.
