Doors Open Lowell is presented annually by the Lowell Historic Board, Lowell National Historical Park, Lowell Heritage Partnership, City of Lowell, Cultural Organization of Lowell, and the Greater Merrimack Valley Convention & Visitors Bureau.

Doors Open Lowell would not be possible without the support of many dedicated people.  On behalf of those who enjoy the event, we would like to extend a special thank you.  And of course the event would not be possible without the support and access provided by the many owners and tenants who graciously open their buildings to the public.

2019 Doors Open Sponsors (to date)

Platinum Key ($5,000+)

Rich Exterior Solutions

Universal Window and Door


Gold key ($1,000 - $4,999)

The Architectural Team

Silver Key ($500 - $999)

The Edge Group

Gavin & Sullivan Architects

ICON Architecture

Trinity Management at Appleton Mills

Bronze Key ($100 - $499)

Architectural Heritage Foundation

DBVW Architects

Jeanne D’Arc Credit Union

Nicholas C. Sarris, Inc.

Picard Construction

Rees-Larkin Development

Brass key ($50 - $99)

Essex Preservation Consulting  

If you would like more information on how to be a Doors Open Lowell sponsor, click HERE for our sponsor flyer.