About the Founder

#1 for meetings and events in the world — event mb
top five historic venues to explore — in the world —

H.H. Leonards Bio >

Reverend H.H. Leonards is the Founder of The Mansion on O Street, O Street Museum, PIR Marketing, Beauty Unites and Co-Founder of

The Mansion was founded in 1980 as an enterprise whose higher purpose is to provide a unique forum where clients come to learn from one another and foster the development of diversity, the creative process and the human spirit.

H.H. Leonards has also been the executive director of a global computer foundation. In this capacity, she was responsible for the distribution of more than $100 million of computer equipment and services. She has also been CMO of several international corporations. Her expertise is digital strategies, sustained execution, and return on investment.

Throughout her professional career, Ms. Leonards has focused on making it economically feasible for corporations to leverage their philanthropic contributions for their benefit and the benefit of society. She has tirelessly worked to encourage companies and individuals to translate their personal visions into a mission of service. As a consultant to the Chairman of Ogilvy & Mather, she helped them found cause-related marketing for their clients.

Ms. Leonards has been a member of several boards & councils including:

  • Columbia Women's Hospital, Washington, D.C.
  • LV Enterprises, Scottsville, Arizona
  • Mildred Alberg Trust, Miami, Florida
  • Rock and Roll Hall of Fame & Museum, Cleveland, Ohio
  • Rosa Parks Museum and Library, Montgomery, Alabama
  • Sequoia Foundation, New York City
  • DC Chamber of Commerce, Washington, D.C.
  • Sandy Spring Bank — Client Experience Council, Washington, D.C.


  • Purdue University College of Health and Human Sciences Distinguished Service Award (2020)
  • DC Chamber of Commerce Lifetime Legacy Award (2018)
  • Purdue University's Alumni of the Year Award (2000)



Local Business Enterprise
Small Business Enterprise
Our Certifications
CBENumber: LSZR30942082022
Development Zone Enterprise
Resident Owned Business