- Alexander Trent Communications
- Allnet Communications
- Allnet Communications, Montgomery, MD
- AT&T, Allentown, PA
- AT&T, Crystal City, VA
- AT&T, Dulles Corner, Chantilly, VA
- Bell Atlantic Mobile
- Bell Atlantic, Washington Bay, WA
- Bell Atlantic, Washington DC
- Bell Atlantic, Arlington VA
- Broadwing (IXC), Washington DC
- Broadwing (IXC), Philadelphia, PA
- Broadwing (IXC), Baltimore, MD
- Broadwing (IXC),
Newark Data Ctr., Newark, NJ
- Broadwing (IXC), Newark, DE
- Broadwing (IXC), Trenton, NJ
- Broadwing (IXC), Baltimore MD
- Broadwing (IXC), Baltimore MD
- C & P Telephone Sales and Service, Calverton, MD
- C & P Telephone, Washington DC
- Clinton Plaza Computer Room, DC
- Comsat New TV Studio, Washington DC
- Cox Communications
- GTE Spacenet II, Mclean, VA
- GTE Spacenet III, Mclean, VA
- GTE Spacenet, Mclean, VA
- IBM, 800 N. Frederick, Gaithersburg, MD
- IBM, Armonk, NY
- IBM, Test Lab, Bethesda, MD
- IBM, Systems Test Lab, Bethesda, MD
- IBM, Computer Room, Crystal City, VA
- IBM, 1 Franklin Sq., Washington DC
- Inter-Tel/Telcoa
- MCI, Executive Offices, Ashburn, VA
- McLeod USA (Splitrock),
1760 Old Meadow Rd, Mclean, VA
- McLeod USA (Splitrock),
401 N Broad St, Philadelphia, PA
- McLeod USA (Splitrock), Hartford, CT
- McLeod USA (Splitrock), Emergency Generator Redesign, Mclean, VA
- McLeod USA (Splitrock), 12th Floor,
New York City, NY
- McLeod USA (Splitrock), 24th Floor,
New York City, NY
- McLeod USA (Splitrock), Investigation for Alternate Options, New York City, NY
- McLeod USA (Splitrock), Tampa, FL
- McLeod USA, Jacksonville, FL
- New Skies Communication,
Network Oper. Control Ctr., Manassas, VA
- NHK Japanese Broadcast Studio,
Split A/C System, Washington DC
- NHK Japanese Broadcast Studio,
A/C Distribution, Washington DC
- Sprint, Orangeville, NY
- Sprint, Technical Operating Ctr., Mclean, VA
- U.S. Department of Veteran’s Affairs – Multiple Projects
- U.S. Army Corps of Engineers – Multiple Projects
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