The consolidation occurred with the backing of chemist William Nichols, who became concerned about dependence on the German chemical industry during World War I, and financier Eugene Meyer.

Allied merged with the Bendix Corporation in 1983, beginning the company's involvement in aerospace.

By the 1950s, Signal was the largest independent oil company on the West Coast of the United States and Mosher held large stakes in American President Lines and the Flying Tiger Line.

[2] The merger of Allied and Signal made aerospace the new company's largest business sector.

[5] It dropped the hyphen to become AlliedSignal in 1993 to reinforce a one-company image and signify the full integration of all of its businesses.

As of 2006, Allied-Signal's automotive products included Fram Filters, Autolite Spark Plugs and Prestone Anti-Freeze.