Environmental Health Research Associates, LLC performs qualitative and quantitative environmental epidemiology studies. The President of E3HRA, Dr. Sylvia Hood Washington, is a former NASA engineer (GS-13) and NASA Contractor (Sverdrup Technology).

Design firm specializing in master planning, development, research, copy writing, interpretive design, exhibit design, graphic design, and graphics for museums, historic sites, visitor centers, nature centers, botanical gardens, zoos, and aquariums.

fabricate and install museums, trade show exhibits, high end millwork graphics, interactives

As a company we provide high quality furniture refinishing, restoration, and repairs including gallery, closed grain finishes. Other services include porcelain, marble, oil painting, gilting, and picture frame restoration.

All Other Transit and Ground Passenger Transportation, Engineering Services, Commercial Photography, All Other Miscellaneous Schools and Instruction, Museums

Industrial Building Construction, Commercial and Institutional Building Construction, Sign Manufacturing, Landscape Architectural Services, Graphic Design Services

Computer Training, Apprenticeship Training, Fine Arts Schools, Independent Artists, Writers, and Performers, Historical Sites

Masonry Contractors, Other Foundation, Structure, and Building Exterior Contractors, Ornamental and Architectural Metal Work Manufacturing, All Other Miscellaneous Manufacturing, All Other Professional, Scientific, and Technical Services

CHICAGO

Engineering Services, Environmental Consulting Services, Facilities Support Services, Remediation Services, Historical Sites

Architectural Services, Landscape Architectural Services, Engineering Services, Drafting Services, Building Inspection Services

Masonry Contractors, Museums, Historical Sites

Historical Sites

Other Nonscheduled Air Transportation, Promoters of Performing Arts, Sports, and Similar Events with Facilities, Promoters of Performing Arts, Sports, and Similar Events without Facilities, Independent Artists, Writers, and Performers, Historical Sites

Residential Remodelers, Masonry Contractors, Lessors of Residential Buildings and Dwellings, Lessors of Other Real Estate Property, Educational Support Services

Custom Architectural Woodwork and Millwork Manufacturing, Showcase, Partition, Shelving, and Locker Manufacturing, Graphic Design Services, Other Specialized Design Services, Museums

Museums, Historical Sites