DHEx Enterprises, LLC is a Philadelphia, PA-based enterprise wholly-owned by its founder, Ms Deborah Gary. Our motto is “Adding Dimension Through Education, Technology and Service”. At DHEx Enterprises, our primary focus is education. We provide: - Educational products - which includes books and educational item sales. - History books and products related to programming. - Educational events - Educational seminars - Educational, historical and cultural exhibitions in house or onsite - Historic preservation initiatives - which includes historic marker applications. - Business consulting and professional service. The Pyramid STEM Challenge - This is our Community-based initiative. Through our efforts, we challenge you to help encourage and develop our youth for careers in Science, Technology, Engineering and Math.