Generally, coffee mate is similar with non dairy creamer as they’re both mixed with the same or a little different ingredients.
In some products and brands, we can generally treat coffee mate as a non dairy creamer, such as based on the information from Nestle’s ingredients list of Coffee-mate Original Powdered Creamer Canister 12 x 11 oz, the only difference in ingredients list is coffee mate without containing lecithin compared with non dairy creamer’s definition from USDA.
Difference: coffee mate is a commercial product that we can buy in supermarket while non dairy creamer is sold as a raw material.