- Verizon
- AT&T
- American Tower Corp
- Public TV/FM
- Clear Channel Communications, Inc.
- T-Mobile
- Crown Castle
- Municipality
- National Weather Service
- US Army
- Cumulus Broadcasting
- Sprint
- Nextel
- Bechtel Corp
- SBA
- Univision Communications, Inc.
- Trinity Broadcasting
- Nassau Broadcasting
- CBS Radio
- CBS Television
- WLNY TV/55
- Telefutura Television Group
- Overland Contracting, Inc.
- NBC Universal
- Summit America Television
- The Durst Organization, Inc.
- Guy Gannett Communications
- FBI
- Citadel Broadcasting
- Motorola, Inc
- Metro PCS
- General Dynamics
- National Grid
- Harris Cellular
- Ericsson
- Barnstable Broadcasting
- Pamal Broadcasting
- Black and Veatch
- Lucent/Alcatel
- Public Broadcasting VT, CT, MA, NH, MD, PA
- Monadnock Radio Group
- Dielectric Communications
- LIN Television
- Redeemer Broadcasting, Inc.
- BuckleyRadio
- Long Island Radio Group
- Radio Engineering Services
- Entercom Boston
- Cox Radio
- State of CT DOT
- North American Mobile Systems, Inc.
- Digital Radio Engineering, Inc.
- Northeast Public Radio