L-3 Marine Systems UK (L-3 MSUK) is a fully owned subsidiary company of L3 Technologies, Inc. based & registered in the UK. L ... -3 MSUK was created in 2005 and has offices in Barrow, Burgess Hill and Bristol, which together currently employ over 140 skilled employees, including Through-Life Support Specialists, Marine Engineers, System and Test Engineers, Specialist Technical Instructors, and Hardware and Software Designers. L-3 MSUK, with its 25+ year history, provides an extensive infrastructure geared to developing, delivering and fully supporting tailored and cutting-edge technology solutions for the commercial and military marine sectors. read more