More than 50 percent of the company is closely held.

Closely held companies often have a better relationship with workers.

The decision was a closely held secret for quite some time.

"It is the most personal and closely held decision a senator makes."

"Even within the government, the knowledge has been closely held."

You've got to explain why you need to keep it closely held, to the members of Congress.

More than half of them work in closely held businesses.

But he added that the closely held Chicago company would have to move very slowly.

"Everything they were working on was closely held," the official said.

How much companies spend on such research is usually a closely held secret.