Of course, most people involved in the industry know of the well-established major international companies that provide technology to the military and other organizations. There are however, a number of smaller companies that are building excellent reputations for developing new products that are proving to be valuable & reliable advances in equipment and what's more, are being marketed at costs well within comfort zones.
One such company is 'N90' of Northants in the United Kingdom. Here's a team where ideas certainly become reality. They are fast becoming known as 'specialists'.
BAE Systems (Global Combat Systems/Land, Combat Air, Maritime and Integrated System Technologies/Insyte).
The Royal Navy.
National Oceanographic Atmospheric Administration.