Experience
Ztwelve principal Heidi Karl has designed beautiful and effective projects for organizations of every size, including emerging startups, regional powerhouses and nationally known entities.
Educational Institutions
- Agnes Irwin School
- Cabrini College
- Colligium Charter School
- Drexel University
- Drexel University College of Medicine
- Educational Testing Service/K-12 Center at ETS
- Franklin Institute
- Lower Merion School District
- Mastery Charter Schools
- Penn State Abington
- Rodel Foundation of Delaware
- Rosemont School of the Holy Child
- Sacred Heart Academy- Bryn Mawr
- School Lane Charter School
- University of Pennsylvania Museum of Archaeology and Anthropology
- University of Pennsylvania: Penn Libraries
- University of Pennsylvania: Wharton School
- Ursinus College
- Valley Forge Military Academy & College
Health and Medical
- Bryn Mawr Orthodontic Labs
- Ilera Healthcare
- AXIOM Orthodontic Studios
- Riddle Hospital
- MHC: Mental Health Consultants
Non-Profits
- Delaware County Children’s Advocacy Center
- Legacy of Love
- NewCourtland Senior Services
- Philadelphia Corporation For Aging
- Rodel Foundation
- United Way of Philadelphia and Southern NJ
- Women’s Humane Society
Law/Technology
- Berman Voss Law Firm
- Comcast
- Eastern Technology Council
- FORT Robotics
- Linode
- PACT: Philadelphia Alliance for Capital and Technologies
- Philadelphia Bar Association
Magazines
- Cache
- Drexel University College of Medicine: Alumni Magazine
- Home & Design
- MetroKids
- Modernism
- Style 1900