Extended list of mechanical engineering employers

(in alphabetical order from the past 5 years)

3M
ABB Robotics (Robotics)
Accenture
Acquired Data Solutions
ADNOC
Adobe
Advanced Technology & Research (ATR)
AECOM
Aerolab
AEye
AHRI (Air Conditioning, Heating, and Refrigeration Institute)
AIG
AirBoss Defense
Alarm.com
Amazon
Anheuser Busch
ANSYS
Anvil Systems Group
Appian
Apple
Applied Control Engineering
Applied Materials
Applied Predictive Technologies
Applied Technical Services
Apptronik (Robotics)
Area I
Arnold Automation (Robotics)
Arora Engineers
Art Matr
Arup
ASML
ASR Group
ATA Aerospace
Athenus Financial Group
Aurora Flight Sciences
Automated Motion
Automated Precision
AVL Powertrain Engineering
BAE Systems
Ball Aerospace
Baltimore Aircoil
Bank of America
Barclays
BD (Becton Dickinson)
Bechtel
Belden Electronics
Bell Company
Berry Global
Big Stuff
Bloom Energy
Bloomberg
BMW
Boeing
Boland
Bookholders
Booz Allen Hamilton
Boring Co.
Bowen Engineering
Bozzuto
Buch Construction
BuildSci
Built Robotics (Robotics)
Burdette, Koehler, Murphy & Associates
Bureau Veritas
BW Papersystems
CACI
Campbell Soup
Canoo
Capgemini
Capital One
Capitol Building Supply
CapTech Consulting
CaptiveAire Systems
Cardinal Engineering
Carrier
Carter Machinery
Cauldwell Wingate
C-Care
CDI
Central Intelligence Agency
Cercacor Labs
CFR Engineering
ChargePoint
Christman Co.
CircleCI
Clark Construction
CM&B
CMTA
Coakley & Williams Construction
Coaptech
Cognite (Robotics)
Cognizant
Collins Aerospace
Combustion Science and Engineering
Commercial Express
Congruence Medical Solutions
CONICET
Consigil Construction
Contech Engineered Solutions
Convergint
Convergint Technologies 
Conveyor & Automation Technologies (Robotics)
Corning
Cosmos Air
Craig Technologies
CRB
Creative Systems and Consulting
Credit Suisse
Crescent Hotels
Critical Systems
CS Energy
Cummins
CustomerFirst Renewables
Dacco Sci
Daikin
Danae Industrial
Davis Construction
DC Dept of Energy & Environment
Deloitte
Department of Energy (DOE)
Detroit Arsenal
Detroit Manufacturing Systems
dlhBOWLES
DMC (Robotics)
Dominion Engineering
Donohoe Construction
Doordash
DPR Construction
Dragados
Draper
Draper Labs 
Dubai Electricity & Water Authority
Dwyer Engineering (Erdman Anthony)
Eaton
Emit Imaging
EN Engineering
Engineering Consulting Services
Enterprise Sciences
Epic Systems
Ernst & Young (EY)
ESAI Energy
Essen BioScience
Evapco
Evergreen Advisors
Exelon
Exponent
ExxonMobil
F.H. Paschen
Falcon Transportation
Fellowship of Catholic University Students
Fidelity Mechanical Services
Flowserve
Fluor
FM Global
Ford Motor
Fourth Dimension Engineering (Parsons Corporation)
Freeport-McMoRan
FuYao USA
General Dynamics
General Dynamics Information Technology
General Electric
General Electric Renewable Energy
General Motors
Genesis Engineering
Georgetown
GHD
Gilford
Gill Corporation
GlaxoSmithKline (GSK)
GlobalFoundries
Goken
Google
Green Generation Solutions
Guidehouse
H&B Engineered Products
Habitat for Humanity
Halliburton
Hardwire
Harkins Builders
Harris 
Havtech
HBS Solutions
HDR
Heffron
Heliogen
Henry Adams
Herrick Technology Labs
Holder Construction
Honeywell
Howard Zimmerman Architects
HPS Specialties
HRST
Hughes Network Systems
Huitt Zollars
IBM
Independent Can
Industrial Indicators
InnovArauco
INPRO Technologies (Robotics)
Intel
International Systems Management
Intralox
Iona Services
Irving Burton Associates (DLH Corporation)
Italian Institute of Technology (Robotics)
Jacobs
James Davis Construction
James Posey Associates
Jaros, Baum & Bolles
JEM Engineering
Jetson Electric
JHU Applied Physics Lab (APL)
JLG Industries
JMT
John Deere (Robotics)
John Moriarty & Associates
Johnson Controls
Joint Warfare Analysis Center
JP Morgan
KBR
KCI Technologies
KCL Robotics (Robotics)
Kent Island Mechanical
Key Tech
KeyW (Jacobs)
Kick Analytics (Robotics)
Kiewit
Kinsley Construction
Kirlin
L-1 Technology
L2 Defense
L3Harris
Landmark Construction
Lava Technologies
Leach Wallace (WSP)
Leach Wallace Associates
Leidos
Lentech
Lerch Bates
LG Chem
Limbach
LitCon
Loccioni
Lockheed Martin
Loring Consulting Engineers
M.C. Dean
Manganaro Midatlantic
Mantaro Networks
Maritime Applied Physics
Marlin Steel Wire
Maryland Energy and Sensor Technologies
Mass General Hospital
MasterCard
Mathnasium
MathWorks
Maxtena
McCormick and Company
Medtronic
Mercedes Benz
Meridian Medical Technologies
Meta
Metropolitan Washington Airports Authority
Microsoft
Microwave Telemetry
Middle River Aerostructure Systems
Middle River Aircraft Systems 
Mil Corp
MIM Software
Mitre
Modern Microsystems
Montgomery County Government
Morgan Stanley
Mortenson
Mott MacDonald
MPR Associates
Mueller Associates
NASA
NASA Goddard
National Air and Space Intelligence Center
National Institute of Standards and Technology (NIST)
National Institutes of Health (NIH)
National Security Agency (NSA)
Naval Air Systems Command (NAVAIR)
Naval Information Warfare Center (NIWC)
Naval Reactors
Naval Research Lab (NRL)
Naval Sea Systems Command (NAVSEA)
Newport News Shipbuilding
Newton
Newton Engineering
NextStep Robotics
Nike
Nimbus Robotics (Shift Robotics) (Robotics)
Nokia
Norfolk Naval Shipyard
North Arrow
Northrop Grumman
Northwestern University
Norwalt
NOV
Novelis
Oak Contracting
Oak Ridge National Lab
Oceaneering (Robotics)
O'Connell & Lawrence
Office of Naval Intelligence
Ohio State
OLBN
On Demand Pharmaceuticals
Optimized Thermal Systems
Optotune
Oracle
Orano
Oshkosh Defense
Otis Elevator
Pace Computer Solutions
Page Southerland Page
Panasonic Energy
Pandagy
PaperSystems
PARC (Xerox)
PCTest Engineering Lab (Element Materials Technology)
Pepsico
Phenix Technologies
Pillar Innovations
Pine Gate Renewables
Planetary Systems
Platform Aerospace
PolyOne (Avient)
Poole & Kent
Potomac Energy
Powercon
Pratt & Whitney
Protiviti Consulting
PSE&G
Puget Sound Energy
PwC
Q1 Aviation
QualComm
Rauch
Raytheon
Raytheon Technologies 
Redox Power System
Relative Dynamics (Robotics)
Retiina
Revature
Rivian
RMF Engineering
Robotic Research (Robotics)
Rocket Lab
Rockwell Automation
Rohde & Schwarz
Rolls Royce
RoviSys Building Technologies
Saft
SAIC
Saint Gobain
Sales Force
Sartorius
Schneider Electric
Science and Technology Associates
Science Systems and Applications (SSAI)
Sea Box
Seneonics
Severn Group
Shirley Contracting
Siemens
Siemens Energy
Snap
Solar Solution
Solar Turbines
Sonosa Medical
SpaceX
Spectrum Contracting
Spectrum Energy
srcLogic
SRW Engineering
ST Engineering
Stanley Black and Decker
STEER
Stellar Solutions
Streett Property Management 
Structural Technologies
Survice Engineering
Tag Engineering
TAI Engineering
TE Connectivity
Technical Network Solutions
Technology Service
Techtronic Industries
Terrapin Works
Tesla
Tetracore
Textron
Textron Specialized Vehicles
Textron Systems
Thales
The Westmoreland Group
Tolley Enterprises
Trane Technologies
Triangle Manufacturing
Tri-State Fabrication & Machining
Trudel Developers
Turner Construction
TuTu House 
UL Firefighter Safety Research Institute
UM UAS Test Site
Unilever
United Technologies (Pratt & Whitney)
United Technologies Digital
University of Maryland
University of Michigan
US Air Force
US Air Force Research Lab
US Army
US Army Aberdeen Test Center
US Army Corps of Engineers
US Army Picatinny Arsenal
US Army Research Lab (ARL)
US Army Test and Evaluation Command
US Coast Guard
US Consumer Product Safety Commission
US Department of Defense
US Federal Aviation Administration (FAA)
US Food and Drug Administration (FDA)
US Marine Corps
US Medical Innovations
US Naval Academy
US Navy
US Patent & Trademark Office
US Peace Corps
US Postal Service
Vencore
Vertex Aerospace
Vibrant America
Viking Systems
Volvo
W.E. Bowers
Western Digital
W.L. Gore
W.L. Gore
W.R. Grace
Wagner Roofing
Walmart Labs
Walt Disney
Walter Reed Army Institute of Research
Washington Gas
Waymo
WB Consulting and Engineering
WB Engineers 
WCS
WE Bowers
Welch Mechanical
WG Tomko
Whisker Labs
Whiting-Turner
Whitman, Requardt & Associates (WRA)
Whitney, Bailey, Cox & Magnani
Worcester Polytechnic Institute (WPI)
WSC
WSP | Parsons Brinckerhoff