Operating signal within 12 months from two or more independent sources.
What they make
Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing334220- wireless technologies
- R&D locations
- four countries
- public safety
- mission critical communications industries
- utilities
- LMR networks
- stacks
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Telecommunication Systems INC | Annapolis | Other Communications Equipment Manufacturing 334290 | ACTIVE | 2.0 KM |
| Blanchard Communications | Annapolis | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334220 | LIKELY ACTIVE | 5.9 KM |
| Acg Systems, INC. | Annapolis | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334220 | ACTIVE | 6.4 KM |
| Axiom LLC | Arnold | Electronic Computer Manufacturing 334111 | ACTIVE | 8.7 KM |
| Northrop Grumman Systems Corporation | Annapolis | Other Communications Equipment Manufacturing 334290 | LIKELY ACTIVE | 7.7 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
2 sources hold this plant, and 8 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen SEP 2026
- SAM.gov entity registrationOPERATINGRecord VLANFUQCT8D8 · first seen NOV 2025 · last seen NOV 2025
IN ANNE ARUNDEL COUNTY12 other plants share this one’s industry (Communications Equipment Manufacturing, NAICS 3342); 3 of them have a size band on record.
What each source says
Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.
- Name
- SAM.gov: ETHERSTACK, INC · NOV 2025
- Street address
- SAM.gov: 222 SEVERN AVE STE 53 BLDG 73-C · NOV 2025
- City
- SAM.gov: ANNAPOLIS · NOV 2025
- State
- SAM.gov: MD · NOV 2025
- Coordinates
- Census geocoder: 38.972738500685,-76.480786050181 · JUL 2026
- Website
- SAM.gov: www.etherstack.com · NOV 2025
- CAGE code
- SAM.gov: 6TSQ2 · NOV 2025
- SAM registration expires
- SAM.gov: 2026-11-10 · NOV 2025