3D printing company?

Well, let’s say…

If you buy a 3D printer for home, it’s probably a FDM printer that melts filament layer by layer. The detail depth here is not very good, as well as you always see structures of the individual fine “worst” of applied filament. For this, the printers are very easy to maintain and have a large volume of pressure for small money. FDM is theoretically multicolored, but it is usually monochrome due to the effort.

Also to be found at home are SLA printers that harden synthetic resin to form moulds, also layer for layer. At comparable prices, however, the home appliances are smaller in the pressure volume, but with a great detail depth, which is why model builders and tabletop players depart on it. Synthetic resin, however, is quite a pork and without protective measures also harmful to health in the raw state (the finished product is harmless). Commercial providers also have quite large SLA printers for large objects. I myself have already ordered a case for a craft project at JLCPCB (have a FDM printer, but for larger quantities it is too slow) and found the quality quite well. The color does not matter with them as long as it is white (does nothing but white).

SLS uses plastic powder (polyamide a.k.a. nylon) which is melted together with a laser (internal, therefore SLS, selective laser sintering), likewise with very good results, typically in a gray. Very robust results and a lot of detail depth.

So you have to paint your models in the end.

Now it’s just the question you want. As mentioned for models, it is almost no matter where you order, in the end it is a price question from manufacturing price and shipping price. With cosplay and life-size objects, it becomes exciting with the size, that cannot everyone, so the object might have to be disassembled and printed in several parts.