TASCAM is the professional audio division of TEAC Corporation, headquartered in Montebello, California. Tascam is credited as the inventor of the Portastudio, the first cassette-based multi-track home studio recorders. Tascam also introduced the first low-cost mass-produced multitrack recorders with Simul-Sync designed for recording musicians. Tascam also manufactured reel-to-reel tape machines and audio mixers for home recordists from the early 1970s through the mid-1990s.

Tascam started out as a research and development group to research how to use TEAC's recording technology in musician and recording studio products. The group was called TASC (TEAC Audio Systems Corp). The founders included Mr. K. Tani, one of the founders of TEAC-Japan and Dr. Abe, a senior TEAC-Japan engineer. In 1971 TASCAM (TASC AMerica Corp.) was founded to distribute TASC products in the U.S. It also conducted additional market research in the US for the Japanese parent company. The company's first headquarters was at 5440 McConnell Avenue, Los Angeles, CA 90066. In 1974 it moved its headquarters to 7733 Telegraph Road, Montebello, California.