Environmental Engineering Studies, Inc.
An environmental engineering firm (located in Carlsbad, California, USA) whose consulting services include air dispersion modeling studies.
http://www.envengstudies.com/air_quality.htm

Beville - Human Factors Engineering
Analysis of operator workload and staffing, control room modernization, and alarm and display system design, configuration & management using Human Factors Principles.
http://www.beville.com

ACES - Arab Center for Engineering Studies
Aces
http://www.aces-int.com/

Coordinated Power Engineering, Inc.
Coordinated Power Engineering, Inc. (CPE) is an electrical engineering firm specializing in power distribution including Short Circuit & Coordination Studies, Power Quality Studies, and Power Factor Correction.
http://www.cpeinc.net

TRX Consulting
Description here
http://www.trxconsulting.com

RWDI Consulting Engineers and Scientists
RWDI Consulting Engineer Environmental Consultant
http://www.rwdi.com/

Davel Engineering
Provides civil engineering and consulting services, including land development, engineering studies, site development and public works projects.
http://www.davelengineering.com

Applied Air Systems, Inc.
Compressed Air System Audits, Leak & Engineering Studies by Applied Air Systems, Inc
http://www.appliedairsystems.com/

Chase Engineering
Chase Engineering is a Fire Protection Engineering Consulting Firm owned and operated by Matt Chase, P.E., located in the Burlington, Vermont area. Chase is a licensed Professional Fire Protection Engineer with a Master's Degree in Fire Protection Engineering.
http://www.chaseengineering.com

Association Studies
Reserve Studies: We study for condominium and community association development. Condominium and community association groups require study of reserve studies for physical inspection and feasibility.
http://www.associationstudies.com/