Who We Are

We bring decades of success in national-scale, nonprofit and for-profit organization management, strategy, branding, marketing, fundraising, and communications—all under one roof. Grayscale’s counselors and strategists offer experience at some of the most impactful, innovative, and influential nonprofit organizations in healthcare and beyond.

Our Leadership

Grayscale’s counselors and strategists offer experience at some of the most impactful, innovative, and influential nonprofit organizations in healthcare.

John J. Seng

Principal, Grayscale

John has served as a leader in some of the world’s most influential consultancies including Ketchum, Hill & Knowlton, and Shandwick. In 1996, he founded Spectrum Science Communications, growing the firm to the leading independent national health and life sciences communications firm.

He offers extensive experience consulting with dozens of the country’s leading biopharmaceuticals firms and discovery-stage innovators, as well as healthcare nonprofits.

John has served on numerous boards including the Progeria Research Foundation Board of Directors and chaired the Society for Women’s Health Research. He led the American Diabetes Association Washington, DC Leadership Council, and served on the National Mental Health Association Board of Directors.

Larry Hausner

Senior Advisor

Larry is a seasoned nonprofit leader and strategist who has led some of the largest nonprofit health organizations in the country, and currently uses his experience to counsel nonprofit health brands of all sizes. He is nationally recognized for his expertise in strategy, revenue generation, operational planning and financial management.

Larry’s experience includes serving as Chief Executive Officer of the American Diabetes Association; Chief Operating Officer for The Leukemia & Lymphoma Society; and Chief of Staff at National Multiple Sclerosis Society. Under Larry’s leadership, revenue for The Leukemia & Lymphoma Society grew from $165 million to more than $270 million.

He spearheaded successful strategic planning efforts at these organizations, as well as others including the American Foundation for Suicide Prevention; the Association for Vascular Access; and the HealthWell Foundation.

Larry is currently Vice Chair of the Children’s Cancer Cause. He studied performance management systems and governance as leadership at Harvard University, strategic planning at the MIT, and nonprofit strategic planning at the Wharton School of the University of Pennsylvania.

Stephanie Paredes Hartwig

Senior Advisor

Stephanie is a seasoned marketing, communications and public relations strategist who advises clients from Fortune 500 businesses to start-up organizations across a broad range of industries including healthcare, medical devices, pharmaceuticals, social services, and education.

Her work with nonprofit organizations has involved advising boards on strategic, long-range planning as well as identifying, writing and subsequently executing on federally funded national demonstration projects.

For the American Society for Quality (ASQ), Stephanie provided long-term growth strategy planning, message development and internal communications counsel to inform internal stakeholders on organizational change.

She serves as strategic communications counselor to Grayscale client Secure Exchange Solutions, a cloud-based technology company that sets the standard for seamless, scalable, secure connectivity across health care organizational boundaries. Stephanie is a graduate of UCLA.

Victoria S. Nelson


Victoria motivates external and internal stakeholders to support nonprofit programs for sustained success.

She offers experience in community and corporate relations and major gift donor cultivation from the innovative, research-backed Catholic Charities Fort Worth.

She also brings experience in local, state, and federal advocacy from lobbying and grassroots roles at the American Heart Association and American Cancer Society. A career founded in research at the National Institutes of Health drives an evidence-based approach to all Victoria’s work, even authentic relationship building.

Victoria is a board member of Catholic Charities Fort Worth and formerly served on the board of the Tarrant County Food Policy Council as well as board president of the University of Maryland DFW Alumni Network. She was named a 2021 Emerging Leader in Philanthropy by the Association of Fundraising Professionals Greater Fort Worth Chapter and is an alumni of Leadership North Texas. She also led a multi-million dollar campaign for a Catholic parish in Colleyville, TX.