GBG has over 30 years of experience and cutting edge survey tools including Ground Penetrating Radar, Infrared Thermography, Ultrasonic and Acoustic Methods and is a leading international company in the use of Non Destructive Evaluation for the forensic investigation of structures.
Kaptive C&P is a full service historic masonry restoration and preservation firm with extensive experience in natural and man-made materials. We combine a background in art and architectural history with proven methodologies, products, and innovative thinking to achieve outstanding results within a project's budget.
Spectra Company specializes in historic restoration and preservation services, including hi-rise façade restoration, terra cotta/stone/brick/plaster repairs, ornamental woodworking, decorative painting and masonry/concrete restoration.
SWCA offers clients one of the largest cultural resource management (CRM) programs in the nation. Our highly skilled architectural historians, historians, anthropologists and archaeologists assist with the often complicated processes necessary for compliance with cultural resource laws and regulations.