MBO is the only resource to contain the over 1.5 million biographies from the Marquis Who’s Who Publications such as Who’s Who in America®, Who’s Who in the World®, and many more!

Inside you’ll find the world’s most successful professionals from around the globe as well as prominent historical figures, entertainers, politicians, sports stars, and today’s most influential leaders. Updated daily, you’ll search through MBO with the confidence of knowing that you are using the most accurate biographical research tool available.

For over 120 years, Marquis Who's Who has remained the world's preeminent biographical publisher. Today, Marquis Biographies Online is a must-have research tool and the only resource containing over 1.5 million biographies from publications including Who's Who in America®, Who's Who in the World®, Who's Who in Corporate America®, Who's Who in American Art®, and many more!

Through Marquis Biographies Online, your patrons can perform highly targeted searches by name, keyword, dates, location, occupation, education, and more to find first-hand, comprehensive biographies including today's most influential professionals, business leaders, entertainers, politicians, sports stars, and artists(almost a million more current biographies than any other resource). Plus, prominent historical figures and industry pioneers from as far back as the 1600s!

We have combined all of our Who’s Who meaning Who’s Who in America, Who’s Who in the World, Who’s Who in Asia, Who’s Who in Art – the Full Collection with access to over 1.5million biographies that are first hand and factual and they are updated on a daily basis as soon as our listees acknowledge their latest accomplishments. It is an invaluable tool for students and faculty members to do research, networking and career development. Our customers are The Library of Congress, Harvard University, Stanford University, just to name a few from the largest libraries to the smallest public library.