A 'Cats' Niche
A 'Cats' niche market, often referred to as just the word niche is a specific, often small, demarcated and editable part of a market.
Niche markets have less competition than the main market; Some niche markets even know one provider. The term niche is originally from the ecology and refers to a specific habitat of an organism.
A company that focuses on a niche market provides a good or service that is not offered by the parties to the main market.