- Designerds Web Technology
- Designers Choice Inc
- Dessen Moses & Sheinoff Attys
- Details Inc
- Detrich Foundation Inc
- Deutsch Larrimore & Farnish
- Deutsche Bank Alex Brown
- Devereux Philadelphia Programs
- Devine & Powers Comm Group
- Devon Seafood Grill
- Dhyana Yoga
- Di Bruno Brothers
- Di Donato & Winterhalter
- Di Giacomo & Baffa
- Dialog Corp
- Diamond Polsky & Bauer
- Diane Ortiz Psychiatry
- Diasporo
- Dickstein & Scutti
- Dictating Machine Sales & Svc
- Digital Legal Svc
- Dillworth Paxson
- Dilworth Paxson & Kalish
- Dilworth Paxson Library
- Dilworth Paxson LLP
- Dimeling Schreiber & Park
- Dimeling Schreiber & Park
- Dion Rosenau Smith Menszak
- Dion Soloman & Shapiro
- Directives
- Disciplinary Board-Supreme Crt
- Discoveryworks Legal
