There are many useful companies in the modelling world, some good, some not so. Here are some links to companies that we have found very good.
Have to include this one first. Not only does this company make excellent submarine kits but is also moving into general boat hulls and fittings. Plus the owner Matt Beck is a founder member of scaleactive our parent group.
Justin at fleetscale is a supplier of some of the best warship kits in the world. If your into warships this is your first port of call.
Martin makes excellent fittings and accessories not just for model boats but trucks as well, plus his service is fast and great.
Ian and Natasha at component shop have long been an excellect source for all things electrical and electronic in the modeling world. From batteries, motors, various electronic items and bits and bobs they are the man plus they run the Blackpool Model Show