William Diefenderfer
Corporate Officer/Principal at Diefenderfer, Hoover, Boyle & Wood
Profile
William M.
Diefenderfer was the founder of e-Numerate Solutions, Inc. founded in 2000, where he held the title of President & Chief Executive Officer from 2000 to 2002.
Currently, he is a Partner at Diefenderfer, Hoover, Boyle & Wood since 1991.
Mr. Diefenderfer's former jobs include Chairman at Navient Corp.
from 2014 to 2019, Non-Executive Chairman-Trustees Board at CubeSmart, Chairman at CubeSmart LP, Independent Director at SLM Corp.
from 1999 to 2014, Deputy Director at US Office of Management & Budget from 1989 to 1991, Director at Sallie Mae Bank, Member at Commission on the Future for America's Veterans, and Chief Financial Officer & Treasurer at Icarus Aircraft, Inc. from 1992 to 1996.
Mr. Diefenderfer's education history includes an undergraduate degree from Dickinson College, a graduate degree from the University of London, and a graduate degree from Duquesne University School of Law.
William Diefenderfer active positions
| Companies | Position | Start |
|---|---|---|
| Diefenderfer, Hoover, Boyle & Wood | Corporate Officer/Principal | 1990-12-31 |
Former positions of William Diefenderfer
| Companies | Position | End |
|---|---|---|
| NAVIENT CORPORATION | Chairman | 2019-06-05 |
| SLM CORPORATION | Director/Board Member | 2014-04-29 |
e-Numerate Solutions, Inc.
 e-Numerate Solutions, Inc. Packaged SoftwareTechnology Services e-numerate Solutions, Inc. developed software products and solutions that allowed users to create and publish interactive data. The company was founded by William Diefenderfer, IIII and Russel T. Davis on July 14, 1998 and was headquartered in McLean, VA. | Chief Executive Officer | 2001-12-31 |
Icarus Aircraft, Inc.
 Icarus Aircraft, Inc. Advertising/Marketing ServicesCommercial Services Icarus Aircraft, Inc. offers airships for aerial advertising and corporate promotions. Its airships can be set up with temporary, interchangeable banners or semi-permanent decals to showcase corporate message or logo. The company is headquartered in Tampa, FL. | Director of Finance/CFO | 1995-12-31 |
| US Office of Management & Budget | Corporate Officer/Principal | 1990-12-31 |
Training of William Diefenderfer
| Dickinson College | Undergraduate Degree |
| University of London | Graduate Degree |
| Duquesne University School of Law | Graduate Degree |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Listed companies | 3 |
|---|---|
| SLM CORPORATION | Finance |
| NAVIENT CORPORATION | Finance |
| CUBESMART | Finance |
| Private companies | 7 |
|---|---|
e-Numerate Solutions, Inc.
e-Numerate Solutions, Inc. Packaged SoftwareTechnology Services e-numerate Solutions, Inc. developed software products and solutions that allowed users to create and publish interactive data. The company was founded by William Diefenderfer, IIII and Russel T. Davis on July 14, 1998 and was headquartered in McLean, VA. | Technology Services |
CubeSmart LP
 CubeSmart LP Real Estate DevelopmentFinance CubeSmart LP operates as a real estate investment trust. It operates through an umbrella partnership structure, with its parent company CubeSmart, as its sole general partner. The firm owns, operates, develops, manages and acquires self-storage facilities. The company was founded on May 1, 1998 and is headquartered in Malvern, PA. | Finance |
| Diefenderfer, Hoover, Boyle & Wood | |
| Commission on the Future for America's Veterans | |
| US Office of Management & Budget | Government |
Icarus Aircraft, Inc.
Icarus Aircraft, Inc. Advertising/Marketing ServicesCommercial Services Icarus Aircraft, Inc. offers airships for aerial advertising and corporate promotions. Its airships can be set up with temporary, interchangeable banners or semi-permanent decals to showcase corporate message or logo. The company is headquartered in Tampa, FL. | Commercial Services |
Sallie Mae Bank
 Sallie Mae Bank Regional BanksFinance Sallie Mae Bank operates as a commercial bank. The firm specializes in deposits, certificate of deposit, debit card, makes loans and provides other services for education and career training purpose. The company was founded on November 03, 2005 and is headquartered in Wilmington, DE. | Finance |
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