Iron Mountain Incorporated has appointed Paul Deninger, a vice chairman of Jefferies & Company, the principal operating subsidiary of Jefferies Group, to its board of directors.

Deninger is currently a vice chairman of Jefferies, a global securities and investment banking firm. He joined the company in 2003 after it acquired Broadview International, a technology-banking firm, where Deninger was the chairman and CEO. He began working at Broadview in 1987 and quickly rose through the ranks to become its CEO less than 10 years later in 1996.

Deninger has sat on the boards for both public and private organizations. He served from 2000-2003 on the board of Netegrity, a security-software company, and he has been a member of the World Economic Forum since 1996. He currently sits on the executive committee of TechNet and co-chairs TechNet New England, a bipartisan network of CEOs and other senior executives campaigning for economic growth in technology and innovation.