Leave: 'Get rid of the stranglehold of this bureaucracy'
REIDsteel is a family-owned business, founded in 1919. Based in Christchurch, Dorset, it designs and builds all types of steel-framed buildings and structures.
It exports around 80% of its products around the world.
The company has to abide by EU regulations designed to simplify and clarify shared standards for construction products across Europe.
But not everyone believes they work, including one of the directors of REIDsteel Simon Boyd.
The BBC talked to him about the effect of EU membership on his business.
You can find more from our series 'EU: Business talks' here