[1] In 2008, President George W. Bush named him the first U.S. special Envoy to the Organisation of the Islamic Conference,[2] which promotes Muslim solidarity in social and political affairs.

In that capacity, Cumber advanced United States interests among the OIC's 57 members nations, including promoting mutual understanding and dialogue[3] while combating intolerance, extremism and the conditions which create it.

As an entrepreneur, Cumber specializes in national and global network strategy, strategic marketing, business planning and institution building.

[5] After briefly residing in New York City, Cumber moved to Miami where he operated a sundries store, a custom mailbox business, and worked nights as a photographer.

[4] From small business ownership, Cumber transitioned into entrepreneurship, using his background in photography and photo processing as starting point.

Together, Cumber his wife founded more than a dozen enterprises, predominantly in the tech sector,[4] some of which were acquired by Fortune 500 companies.