Thomson Software Products (TSP) was a software development corporation based in Norwalk, Connecticut with engineering and support facilities in Norwalk and San Diego, California. Established in July 1995, the corporation became half of Aonix in 1996.
TSP was a United States subsidiary of the French multinational Thomson-CSF formed by merging the Thomson subsidiary Alsys of San Diego with Must Software International of Norwalk. The company did not integrate the activities of its two components before its own merger with Interactive Development Environments, Inc. to form Aonix in November 1996. The ex-Must staff in Norwalk continued to provide client/server fourth-generation language (4GL) and middleware products, while the ex-Alsys worked on high-performance Ada development environments and the TeleUSE family of graphical user interface development tools.