Todd Bernstein is the founder and director of the annual Greater Philadelphia Martin Luther King Day of Service, the oldest and largest King Day of Service event in the United States. In 1994, Bernstein helped to create the King Day of Service with Pennsylvania U.S. Senator Harris Wofford and Atlanta Congressman John Lewis, both veterans of the civil rights movement with Dr. King. Bernstein is also president of Global Citizen, a non-profit organization founded in 1995, which promotes sustainable civic engagement through volunteer service, locally and globally.
In 1996, Bernstein started the nation’s first King Day of Service in Philadelphia. The Greater Philadelphia King Day of Service has drawn more than 1.2 million volunteers over twenty years. Each year, it has been the largest King Holiday event in the nation. This past January, 2015, more than 135,000 people volunteered in some 1,800 projects in the 20th annual event. In 2012, Vice President Joe Biden and Dr. Jill Biden participated.
What started in Philadelphia has become a national movement, with projects taking root in hundreds of cities, large and small, across the nation. Bernstein also founded MLK365, which transforms the King Day of Service into a year-round civic engagement initiative. This program promotes and supports sustainable civic engagement by providing ongoing volunteer opportunities, educational programs, and community partnerships across the Greater Philadelphia region 
Bernstein was named by President Barack Obama as a "Champion of Change" and honored at the White House on January 12, 2012. In 2000, the Points of Light Foundation recognized Bernstein with its national Point of Light Award  In 1999, the Points of Light Foundation honored the Greater Philadelphia King Day of Service as a national Point of Light.
In 1997, Bernstein served as national planner for the Presidents' Summit for America's Future. The five-day summit brought together America's living presidents and community leaders to address civic engagement and opportunities for America’s at-risk young citizens. The event led to the creation of America’s Promise: the Alliance for Youth.
Three years later, in 2000, Bernstein served as director of the National Shadow Convention (a bi-partisan event held concurrently with the Republican and Democratic national conventions). He went on to serve as director of the King Day of Service National Expansion Initiative from 2006–2008.
In 2013, he was honored by the Bipartisan Policy Center in Washington, D.C. with the inaugural Public Service Award. In 2012, the Philadelphia Association of Black Journalists recognized him with the organization's Community Service Award. In 2009, Bernstein was awarded the Jewish Social Policy Action Network Social Justice Award and the National Association of Blacks in Criminal Justice Legacy Award. The Philadelphia Inquirer has also honored Bernstein with its Citizen Hero Award. In 2003, the Philadelphia Inquirer honored Bernstein with its Citizen Hero Award.
- "History". Mlkdayofservice.org. 1983-11-02. Retrieved 2012-08-05.
- "A day of service to honor a life of service - Philly.com". Articles.philly.com. 2012-01-17. Retrieved 2012-08-23.
- "Todd Bernstein | The White House". Whitehouse.gov. Retrieved 2012-08-05.
- "Local King Day organizer wins over the skeptics - Philly.com". Articles.philly.com. 2012-01-16. Retrieved 2012-08-23.
- "Creating a central organizing system for a city-wide day of service event | Resource Center". Nationalserviceresources.org. 2006-01-16. Retrieved 2012-08-05.
- "Americas Promise Alliance – Our History". Americaspromise.org. Retrieved 2012-08-05.
- "LEAD – A Get HandsOn Summit: Speakers". HandsOn Network. Retrieved 2012-08-05.
- "2009 JSPAN Social Justice Award to Todd Bernstein | Jewish Social Policy Action Network". Jspan.org. 2009-10-15. Retrieved 2012-08-05.
- January 20, 2003 (2010-09-16). "How to honor King Todd Bernstein doesn't want this holiday to ever become just another day off. - Philly.com". Articles.philly.com. Retrieved 2012-08-05.