boutique

Short definition from Wiktionary

Noun

1. 1
   A small shop, especially one that sells fashionable clothes, jewelry and the like.
2. 2
   A small shop located within a larger one.
3. 3
   A film production company making only a few movies per year.
4. 4
   Any company that has an exclusively smaller client base generally in a niche market or specializing in bespoke or custom-made products or services.