International Signal and Control (ISC) was a U.S. defense contractor based in Lancaster, Pennsylvania that was involved in the manufacture of electronic missile subassemblies, navigation components, fuses, power supplies for proximity fuzes, and grenade technology.
[1] ISC was involved in two major crimes, for which CEO James Guerin received a 15-year prison sentence: Originally called ESI (Electronic Systems International), the company manufactured sub-assemblies for the AGM-45 Shrike and RIM-7 Sea Sparrow missiles in 1974, and just after the Vietnam War which was part of a standard arms contract for the US defense administration (DCAS).
[5] Another link to Iraq was the supply of the specifications for the Mk 20 Rockeye II cluster bomb through Chilean defense company Cardoen Industries, which was able to build an almost identical weapon that was subsequently used against coalition forces in the Persian Gulf War of January–February 1991.
On October 31, 1991, ISC founder James Guerin (1930-2022), and 18 others were indicted by a Philadelphia Federal Grand Jury on charges of a "$1.14 Billion Fraud (Ferranti/ISC Merger of November, 1987)" and the illegal sales of arms to South Africa and Iraq.
[9] In 1994, after Bobby Ray Inman requested to be withdrawn from consideration as Bill Clinton's replacement for Defense Secretary Les Aspin, his critics speculated that the decision was motivated by a desire to conceal his links to ISC.