O'Brien and Company

O’Brien & Company is a nationally recognized leader in sustainability and green building consulting. We guide clients towards sustainability by translating the best industry information and by leading a collaborative process to arrive at the most practical, sustainable result. We provide green building consulting and training to building owners, developers, architects, contractors, municipalities and other organizations who influence the built environment.

We help clients improve and maintain the performance of their buildings with appropriate goal-setting, technical assistance and training.