HANOVER, N.H. — Trumbull-Nelson Construction and Banwell Architects are among 12 New Hampshire builders, architects and landscapers that were named winners of the 2012 Building New Hampshire Awards.

The companies were recognized for their work to build, remodel, or retrofit energy-efficient, high-performance buildings, including residential, commercial and industrial buildings.

The award-winning projects were designed and built to minimize their carbon footprints and impact on the environment.