Vesper Society A private foundation based in San Francisco, Vesper Society has addressed social justice and healthcare issues worldwide for more than 40 years. Long before other nonprofits, Vesper Society celebrated the vocation of the laity and embraced social entrepreneurship. Yet beyond its friends and partners, Vesper Society is not widely known. Signal Hill is helping to share the organization’s good news, and support its global projects, through strategic planning and innovative communications. Learn more.