RealVu | 188 followers on LinkedIn. RealVu, the industry leader in viewable impression technology, is a privately held company formed in 2002. RealVu is a fast growing business that was the first to bring the Viewable Impression to the market with a series of patented and patent pending digital advertising technologies which have forever changed the way the industry looks at impressions, the baseline measurement for advertising in all mediums. The RealVu Viewable Impression platform, is the first to be accredited by the Media Rating Council (MRC) for the Viewable Impression in April of 2010.