List of Engineering companies in USA:

A. O. Smith
Acromag
AdamWorks
Advanced Battery Technologies
Air Company
Airflow Sciences Corporation
Altair Engineering
Ammann & Whitney
Ashbritt
Assett
Astrobotic Technology
Balfour Beatty Infrastructure, Inc.
The Beck Group
Belcan
Bendix Corporation
Black & Veatch
Blue Oak Energy
Boston Bridge Works
Brasfield & Gorrie
Brooks Stevens Design Associates
BSA LifeStructures
Butler International
Cadenza Innovation
Cameron International
Canary, LLC
Carollo Engineers
CDI Corporation
Chas. T. Main
Clear-Com
Clough Harbour
Combustion Engineering
Commercial Light Company
Commonwealth Associates, Inc.
Cosentini Associates
Creighton Manning Engineering
Crossland Construction Company
CRRC Sifang America
CTLGroup
Cupertino Electric
Current Lighting Solutions
Curtiss-Wright
Decisive Analytics Corporation
Deep Space Systems
Donaldson Company
Dresser Industries
Dresser-Rand
Dynamic Sealing Technologies, Inc.
EFI Technology Inc
Engility
ENSCO, Inc.
EPIC Systems, Inc
Fay, Spofford & Thorndike
Flame-Spray Industries
Flometrics
Forum Energy Technologies
Fractionation Research Inc.
GE Aviation Systems
GE Hitachi Nuclear Energy
Gearhart Industries
General Magnaplate
GeoQuest Systems
Gibbs & Cox
Global Solar Energy
GRAEF
Gunderson Inc.
Hardesty & Hanover
Harley Ellis Devereaux
Helion Energy
HelioVolt
HNTB
Honeywell
Draft:Howard Stein Hudson
IIT Research Institute
ION Geophysical
Jensen Hughes
KBR (company)
Kleinfelder
KnowledgeWare
Lauren Engineers & Constructors
Leidos
M.C. Dean, Inc.
MACTEC
Madigan-Hyland
ManTech International
Mark IV Industries
Mass Megawatts Wind Power
Metal Improvement Company
Metalith
Miasolé
Michael-Bruno
Miyamoto International
Mohawk Innovative Technology
Walter P Moore
Morcom International
MORGOIL Bearings
Natel Energy
Navmar Applied Sciences Corporation
Nectar Inc.
Nooter/Eriksen
Northern Power Systems
Northrop Grumman
Onanon
OrbitBeyond
Oregon Bridge Delivery Partners
Osborn Engineering
Oscium
Overaa Construction
Pacific Architects and Engineers
PacWind
PaR Systems
Paragon Innovations
Parsons Corporation
Penn State Lunar Lion Team
Phoenix International Holdings
PivotPoint Technology Corporation
Plug Power
Powerlight Technologies
ProductCenter
Qualitrol
Quanta Services
Quanta Technology
Rannoch Corp.
Rosendin Electric
RTX Corporation
Rutherford + Chekene
Sachs Electric
Science Applications International Corporation
Schweitzer Engineering Laboratories
SeaTrepid
Servomechanisms Inc.
Mattr
Smith International
Southwest Windpower
SRI International
Stone & Webster
Suncore Photovoltaics
Superior Engines & Compressors
Swift Engineering
Symbion Power
Syska Hennessy
Talascend
TASC, Inc.
Tauscher Cronacher Professional Engineers
Taylor Forge
Teledyne Technologies
Texas Energy Engineers
The Ballinger Company
TI Fluid Systems
UGE International
Union Bridge Company
United Technologies
Honeywell UOP
Van Norman Machine Tool Company
Visotek
Weidlinger Associates
Westinghouse Advanced Energy Systems Division
Westinghouse Astronuclear Laboratory
Westinghouse Combustion Turbine Systems Division
Wilson Brothers & Company
Wisconsin Bridge and Iron Company
Zero Point Frontiers Corporation