Spannar

Spannar is a manufacturer of hydrostatic release units (HRU) in Grand Theft Auto V.

Overview
Spannar makes HRUs which is a pressure activated mechanism designed, to automatically deploy a life raft in case of an emergency situation like a sinking. Just like real life HRUs, the unit only lasts 2 years, with the markdown month calander wrapped around the side.

One of their HRU devices can be seen on a life boat raft on the Dignity yacht.

Influence
The company is very obviously a parody on the Hammar company, as both companies names are just tools with the 'E' replaced with an 'A'.

Not to mention the design simularity. The HRU is also based from the Hammar H20 HRU.