HSMM
Hayes, Seay, Mattern & Mattern, Inc. (HSMM)
Three Lafayette Centre, Suite 1000
1155 21st Street, NW,
Washington, DC 20036

Phone: (202) 721-7700
Fax: (202) 721-7701
Email: hsmm-dc@hsmm.com
Website: www.hsmm.com

Principals:
Gregg W. Spagnolo, PE
Joseph E. Wells, AIA
Charles R. (Bob) Priest, PE, DBIA
Jonathan Hopwood, AIA

Employees:
62

Disciplines:
Architectural
Civil
Communications
Construction Management
Electrical
Environmental
Fire Protection
Mechanical
Plumbing
Security
Seismic
Structural

Areas of Interest:
Office & Interior Environments: Corporate; Government; Interiors; Secure Facilities
Education & Community: Higher Education; K-12 Schools; Cultural Facilities; Recreational Facilities; Housing & Community Planning; Parking Facilities
Health & Sciences: Hospitals; Clinics; Wellness Centers; Medical Office Buildings and Biomedical Facilities. Industry & Technology: R&D; Manufacturing and Assembly; Operations, Maintenance & Training Facilities; Utility Systems
Justice & Public Safety: Courts; Jails; Law Enforcement; Emergency Communications Centers; Juvenile Detention and Corrections; Prisons

Firm Description:
HSMM is a full-service design firm providing comprehensive architectural, engineering and planning services. With nearly 60 years of experience serving the needs of public and private sector clients as well as the federal government and military, the firm has completed hundreds of noteworthy projects and built a solid portfolio spanning multiple project types. A proponent of the design-build method of project delivery, HSMM has successfully executed the process for over a quarter century. The firm also has expertise in anti-terrorism/force protection and designs using an approach that incorporates both physical and technical security measures. Building Design & Construction ranks HSMM in the Top 50 Engineers/Architects and Engineering News Record ranks HSMM in the Top 25 specializing in the planning and design of Government Offices Buildings.

Company Type:
Private

Minority Status:
N/A


American Council of Engineering Companies of Metropolitan Washington
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(703) 610-9019 | (703) 610-0226 fax

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American Council of Engineering Companies of Metropolitan Washington

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