Christian, maybe. Depends on the situation, but there are very few reasons that businesses slap the Christian label on (especially if it has nothing to do with the company otherwise) unless they're trying to make a statement of what they stand for in the over the top, family values sense. There are certain exceptions where it's warranted though, like for selling specifically Christian merchandise.

Other minority religions and ethnicities no, because these usually label themselves for a reason even if that reason is just to indicate that the business is a welcome place for said minority. Most of the time it's for more than that though, such as showing certain items are made by the group that has any claim to them (such as jewelry with religious or cultural symbols) or indicating Kosher or Halal treatment when it's food or animal products, etc etc