The agency won the account following a competitive five-way pitch against Mediacom, Iris, Kodu and Outside Line.
The Red Brick Road has handled VW Commercial's CRM account since 2009.
VW Commercial currently works with a number of agencies including Iris and DDB. However, The Red Brick Road is the brand's first dedicated social media agency.
David Miller, managing director at The Red Brick Road, said: "Social media is key to engaging their audiences moving forward and we can’t wait to get started."
Mark Hopkins, head of marketing at Volkswagen Commercial Vehicles, added: "The Red Brick Road provided a great response that will give us a strong and measurable voice within social media."