John D'Addario, Jr. represents the eighth generation of the D'Addario family involved in the musical instrument string business, the third generation in the United States.

John joined the family enterprise in 1961 out of high school working with his father while attending Nassau Community College at night. He served in the United States Army for two years from 1965 - 1967. Returning to the business after military service, he has served an integral part in the company's market growth, business relationships and leadership for the past 40 years.

John served the company as President through the 1980s and 1990s where he was instrumental in expanding the activities of the D'Addario firm to include manufacturing and distribution of a number of other musical products. During this time John traveled extensively to establish D'Addario products in the export markets. Today the Company's products are distributed in more than 100 countries around the world. John's keen business knowledge and leadership skills helped develop the company into what it is today.

In addition to his duties at D'Addario & Company, Inc., John has been active in the music industry serving in a variety of positions to help the expansion and outreach of the industry. He has served on the Boards of The National Association of Music Merchants (NAMM), The Guitar and Accessory Marketing Association (GAMA), Music Distributors of American (MDA) and the National Association of Band Instrument Manufacturers (NABIM). John also served as President of NABIM as well as the American Music Conference. Currently, he serves on the Research Advisory Board. In September 2008, John received an honorary degree from SUNY-Potsdam's Crane School of Music.

Besides his industry involvement, he has served on the Board of the Tilles Center for Performing Arts, Nassau Country Club, The Long Island Mentoring Partnership, and The Midori Foundation. He is currently the President of The D'Addario Music Foundation which grants more than $300,000 each year to 100 music education-oriented organizations around the world.

John and his wife, Joan, split their time between their homes in Locust Valley, New York and Scottsdale, Arizona. They have four children all of whom now work for the family business.