List of past project management employers

(in alphabetical order)

Abacus Consultancy Services
Abel Consulting
Absolute Business Solutions
ACE Services
Adams Communication & Engineering Technology
Adcock System
AECOM
Aegis Project Controls
Amazon
American Contracting
Amtrak
Architect of the Capitol
Ardent Co.
Armstrong Teasdale
Arrold Engineering Development Center
ASRC Federal
ASTAD Project Management
Astute Technology
Athavale, Lystad, & Associates (ALA)
Atlanta Public Schools
Atmel Corporation (Acquired by Microchip Technology)
B.F. Saul
BAE Systems
Barton Malow
Baxter Healthcare
Bechtel
Ben Dyer Associates
Black & Veatch
Bloomingdale Fire
Boeing
Boland
Booz Allen Hamilton
Brudis & Associates
Bryant Associates
Burns & McDonnell Engineering
CB&I Technologies
CBRE Group
CDI Marine Systems
CGI
Chester Engineers
Chevron
China Construction American
Cigital (Acquired by Synopsys)
City of Baltimore
City of Rockville
Clark Construction
CMTS
Communications Technology Corporation
Computer Corporation
ComSource
Contech
Corning Optical
CSSI
Davis Construction
DC Government
DC Water and Sewer Authority
DCS Techno Services
Dell
Deloitte
Delon Hampton & Associates
Department of Urban Roads
Developmental Test Command
Dewberry
Digital Infuzion
DLV Architects
DMJM Harris
Dominion Engineering
Dow Corning
DPR Construction
DS Thaler & Associates
Economic and Social Research Institute (ESRI)
EMA, Inc
EMG Corporation (Acquired by Bureau Veritas)
EMO Energy Solution
EMSI (Acquired by Lightcast)
Enercon Services
Exelon
ExxonMobil
Fairfax County
Fluor
FMC
Forrester Construction
Freddie Mac
Futron Corp.
Gannett Fleming
General Dynamics
Gilbane
Gilford Corporation
Goldbelt Orca
Gorove Slade Associates
Greenman-Pedersen
Gryphon Construction
Harbor Designs & Manufacturing
Harris Corporation
Hawaiian Electric Company
Heery International
Hewlett-Packard
Honeywell
IBM
iCivil
Indam Engineering
Intel
Intus Windows
Iridium
ITT Corporation
J.E. Jaimes Engineering
Jacobs
JHU Applied Physics Lab (APL)
JLG Industries
Joint Ventures Solutions
Joseph B. Fay Company
JP Construction
KCI Technologies
Koffel Associates
L3 Technologies
Lane Construction
Limbach Facility Services
Little & Associates
LJT & Associates
Lockheed Martin
Louis Berger Group (Acquired by WSP)
M. Luis Construction
MACTEC
Management Solutions
Manganaro
Mantaro Networks
Mars Labs
Maryland State Highway Administration
Maryland Transportation Authority
McAfee
Meta Engineers
Metro Fire Safety
Microsoft
MicroStrategy
Milani Construction
Military Sealift Command
Modern Technology Solutions
Moffatt & Nichol Engineers
Morgan State
Morris & Ritchie Associates
MPR Associates
Murtech
NAES Power Contractors
NASA
National Security Agency (NSA)
National Transportation Safety Board
Naval Air Systems Command (NAVAIR)
Naval Sea Systems Command (NAVSEA)
Neel Company
Nestle
New West Technologies
NNE Pharmaplan
Northrop Grumman
NYC Dept. of Transportation
O.R. George and Associates
O'Connell & Lawrence
Odyssey Technologies
Optimal Solutions Group
Oracle
Orbital ATK (Now Northrop Grumman Innovation Systems)
Orca Intelligence
Organization of American States
Orin USA
Outotec
P. Flanigan & Sons
Patner Construction
Pearson
PEC Solutions
Phoenix International Holdings
Prince George's County Public Schools
Progress Energy (Acquired by Duke Energy)
Project Enhancement Corporation (PEC)
Qualcomm
Raven
Raytheon
REI Systems
RK&K
RMF Engineering
Rockwell Collins
Sadat Associates
Saft
SAIC
Sanbaltar Systems
Saxon Construction
Schlumberger
Schnabel Engineering
Schnabel Foundation Company
Scott Long Construction
Shaffer, Wilson, Sarver & Gray (SWSG)
Shaw Group
Siemens
Sigma Tau Pharmacueticals (Now Leadiant Biosciences)
Simplex Grinnell (Now Johnson Controls)
SK&A Engineers
Solar Town
Space Telescope Science Institute
Specialized Engineering
Stantec
Stinger Ghaffarian Technologies (SGT) (Acquired by KBR)
Survice Engineering
Sverdrup Engineering
Systems Planning and Analysis
Tadjer Cohen Edelson Associates
TBA Architects
Telgian
Terra Site Constructors
Tesla Motors
Textron
TMG Construction
Total Civil Construction & Engineering
Transcend Robotics
Turner Construction
Tyler Mechanical Contracting
Ultra Electronics
United Educators
University of Maryland
University of Pennsylvania
US Air Force
US Army
US Army Aviation and Missile Command
US Army Corps of Engineers
US Army Evaluation Center
US Army Material Systems Analysis Activity
US Army Research Lab (ARL)
US Army Test and Evaluation Command (ATEC)
US Coast Guard
US Department of Agriculture (USDA)
US Department of Defense 
US Department of Energy
US Department of Transportation (DOT)
US Federal Energy Regulatory Commission
US Food and Drug Administration (FDA)
US Naval Academy
US Navy
US Nuclear Regulatory Commission
US Patent and Trademark Office
VA State Fire Marshal
Venezuelean Oil
Video Networks
W.L. Gore
Wallace Montgomery
Walsh Group
Walter Reed Army Institute of Research
Washington County Public Works
Washington Metropolitan Area Transit Authority (WMATA)
Washington Suburban Sanitary Commission
Whiting-Turner
WILLCOR
WMATA
Xerox
XL Construction