A person or business that provides customization services

(obsolete) usually; by custom or habit

(obsolete) customary / (obsolete) Subject to the payment of customs; dutiable.

(obsolete) Quality of being customable; conformity to custom.

The act of providing services to customers before, during and after a purchase. / A department that provides services to existing customers.

A group of customers and/or consumers that a business serves.

plural of customer base

Provision of service to customers before, during and after a purchase.

taking care of customers to ensure their satisfaction

Synonym of consumer research