Aggregate Industries, a wholly-owned subsidiary of Holcim Ltd, is an environmentally responsible producer of high quality, aggregate-based construction materials in the US and the UK. The company produces aggregates, ready mixed concrete, asphalt (and related contracting services) and... more

Midwest Asphalt Corporation is a premier full service contractor serving the asphalt needs of state, municipal and commercial customers. The company specializes in paving, grading, and milling projects. With an excess of 500 projects during the 2005 construction season, projects ranged... more

Wirtgen America, the world leader in asphalt recycling and base stabilization equipment, has served as the Series sponsor since 2003. The company's marketing strategy has utilized motorsports successfully for nearly 20 years traditionally in the open-wheel ranks including associations... more