NEW YORK, July 1 (Reuters) - Donald Trump's namesake company and its longtime chief financial officer are expected to fight criminal charges being brought on Thursday in a probe by Manhattan's district attorney.

The Trump Organization and the CFO, Allen Weisselberg, are expected to be arraigned later in the day in a New York state court in Manhattan, a person familiar with the matter has said, when a grand jury indictment is to be unsealed.

Alan Futerfas, a lawyer for the company, is expected to enter a not guilty plea on its behalf, a person familiar with the matter said.

"Mr. Weisselberg intends to plead not guilty and he will fight these charges in court," Weisselberg's lawyers Mary Mulligan and Bryan Skarlatos said in a joint statement. Weisselberg surrendered to authorities in the early morning.