It happened at JMC Tax and Financial Services in the 100 block of Ritner Street on August 5th.
Police say the man broke in through the front door and took several flat screen televisions, computer monitors and a laptop.
The suspect is described as a black male, 25-30 years-of-age with a thin build. He was wearing a white T-shirt and a dark baseball cap.
Anyone with information is asked to contact Philadelphia Police at 215-686-TIPS (8477), text a tip to PPD TIP (773847) or through PhillyPolice.com.