Can corporations have a religious viewpoint protected by the Constitution?

That's the issue in the Supreme Court case Sibelius vs. Hobby Lobby.

The question is whether Hobby Lobby, based on the religious objections of its owners can deny its employees health insurance for contraceptives to which they would otherwise be entitled by federal law.

article here. (from the State Bar of Michigan blog), here (Volokh Conspiracy), and here (Balkanization).