The phrase "complementary services" refers to different services or products that are offered together because they work well together or enhance each other. Full definition
Over the years they joined forces with a number of other persons who provided complementary services (strategic planning, governance, marketing, tech support,...) for the arts sector. (notjustforlawyers.com)
Moreover, our services are hassle - free and come along with complementary services which will fulfil your requirements completely within an instant. (instantassignmenthelp.com)