Operating signal within 12 months from two or more independent sources.
What they make
Audio and Video Equipment Manufacturing334310- directional speakers
- AS-24iX
- mounting options
- custom fabric printing
- museums
- banks
- healthcare
- libraries
- digital signage
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Products
Recorded against the company rather than this address. Federal award and drug records name the company, not the plant, so we cannot say which of its sites makes these.
Where these came from
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Excelitas Technologies CORP | Waltham | Commercial and Service Industry Machinery Manufacturing 333310 | ACTIVE | 6.3 KM |
| Owl Labs INC. | Somerville | Audio and Video Equipment Manufacturing 334310 | ACTIVE | 8.9 KM |
| Tyco Electronics | Burlington | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334220 | UNVERIFIED | 12.8 KM |
| Strahl LLC | Woburn | Commercial and Service Industry Machinery Manufacturing 333310 | ACTIVE | 13.4 KM |
| 1 Beyond, Inc. | Charlestown | Audio and Video Equipment Manufacturing 334310 | UNVERIFIED | 10.9 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
3 sources hold this plant, and 10 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 C1J2B3ZHTNZ3 · first seen JAN 2026 · last seen JAN 2026
- SBA Paycheck Protection Program loan recordsEXISTENCERecord MA|watertown|400 pleasant st · first seen JAN 2021 · last seen JAN 2021
IN MIDDLESEX COUNTY10 other plants share this one’s industry (Audio and Video Equipment Manufacturing, NAICS 3343); 2 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: HOLOSONIC RESEARCH LABS, INC. · JAN 2026
- Street address
- SAM.gov: 400 PLEASANT ST · JAN 2026
- City
- SAM.gov: WATERTOWN · JAN 2026
- State
- SAM.gov: MA · JAN 2026
- Coordinates
- Census geocoder: 42.366971184652,-71.202580042989 · JUL 2026
- Employees (band)
- SBA PPP: 1-19 · JAN 2021
- Website
- SAM.gov: http://www.holosonics.com · JAN 2026
- CAGE code
- SAM.gov: 4E6A0 · JAN 2026
- PPP loan
- SBA PPP: PPP loan x2, approved 2021-01-21, 5 jobs reported · JAN 2021
- SAM registration expires
- SAM.gov: 2027-01-12 · JAN 2026


