m ▁and ▁emp lo ys ▁more ▁than ▁ 1 0 0 ▁staff ▁at ▁its ▁headquarters ▁in ▁Boot le ▁and ▁in ▁Bir ken head . ▁ ▁History ▁ ▁I SP ▁began ▁trad ing ▁in ▁ 1 9 8 1 . ▁It ▁was ▁bought ▁out ▁by ▁its ▁management ▁team , ▁John ▁Rog ers ▁and ▁Geoff ▁Bill ington ▁in ▁ 2 0 0 8 . ▁Fund ing ▁was ▁provided ▁by ▁Alliance ▁Fund ▁Man agers ▁through ▁the ▁M SI F ▁( Mer se ys ide ▁Special ▁In vest ment ▁Fund ) ▁and ▁the ▁Co - oper ative ▁Bank . ▁ ▁Product s ▁ ▁I SP ▁manufact ures ▁more ▁than ▁ 1 7 0 , 0 0 0 ▁products ▁a ▁year . ▁ ▁In ▁ 2 0 1 2 ▁the ▁firm ▁completed ▁a ▁deal ▁to ▁supply ▁all ▁passenger ▁boats ▁operating ▁in ▁the ▁Lake ▁District ▁with ▁life jack ets . ▁ ▁I SP ▁special ises ▁in ▁tact ical ▁wa ist co ats , ▁used ▁by ▁armed ▁forces , ▁special ▁forces ▁and ▁police ▁forces ▁around ▁the ▁world . ▁It ▁also ▁produces ▁a ▁range ▁of ▁imm ersion ▁su its ▁under ▁its ▁own ▁In tre pid ▁brand . ▁ ▁In ▁May ▁ 2 0 1 2 , ▁I SP ▁became ▁the ▁sole ▁UK ▁supp lier ▁of ▁Du ar ry ▁Ch allen ger ▁lif era ft s ▁and ▁rescue ▁boats . ▁ ▁I SP ▁also ▁provides ▁marine ▁safety ▁electronic ▁products . ▁In ▁ 2 0 1 3 ▁I SP ▁signed ▁a ▁deal ▁to ▁become ▁the ▁UK ▁distrib utor ▁for ▁the ▁Ocean ▁Sign al