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Hennessy Co. is a construction, development, and project management company focused on improving communities through responsible and thoughtful projects. Committed to Creating Community We see ourselves not only as developers but as stewards of this land. We're here to stay. To live. To raise our families. To hike, bike, walk our dogs and watch the sun rise over the same beautiful mountains you do. Along with our reverence for the places we create, we have a great deal of experience with community-building, creating communities that are enduring and sustainable. We work with only the best planners, landscape architects and engineers in the country. Finally - and this is pretty important - we have the financial backing and resources to make sure every project is a success.