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Plx INC.

40 W Jefryn Blvd, Deer Park, NY 11729

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 3 SOURCES

Operating signal within 12 months from two or more independent sources.

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Homepage of Plx INC.
Their homepage, crawled AUG 2026

What they make

Commercial and Service Industry Machinery Manufacturing333310
  • interferometers
  • autocollimators
  • beam steering technology
  • monolithic optical structure technology
  • military

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Products

Made or handled here · 4
hollow penta mirrors hpm · hollow retroreflectors · hollow roof mirrors hrm · plx tool cube
Where these came from
4 from the company’s own website · Company website
url-slug on https://www.plxinc.com/products/hollow-penta-mirrors-hpm
CAREERS
Careers page — seen SEP 8, 2026

CERTIFICATIONS — LISTED ON THE COMPANY’S WEBSITE

  • ISO 9001
  • RoHS

Read from this company’s own website on August 9, 2026. Nobody at the facility has confirmed it here, and FactoryRegistry has not verified these — unlike operating status, which comes from independent public records. A certificate can lapse without the website changing, so ask the facility for current ones.

Where it is

40.75787, -73.30129 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

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Schneider Optics, INC.HauppaugeCommercial and Service Industry Machinery Manufacturing
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Meopta USA INCHauppaugeCommercial and Service Industry Machinery Manufacturing
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Every listed plant in Suffolk County

Also at this address

No other federal record shares this street address.

Where this record comes from

3 sources hold this plant, and 11 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 websiteOPERATING
    first seen JUL 2026 · last seen OCT 2026
  • SAM.gov entity registrationOPERATING
    Record ZKGULAX7FA93 · first seen JUN 2026 · last seen JUN 2026
  • DOL Form 5500 retirement plan filingsOPERATING
    Record 112102941|NY|11729|40 w jefryn blvd · first seen APR 2025 · last seen APR 2025

IN SUFFOLK COUNTY9 other plants share this one’s industry (Commercial and Service Industry Machinery Manufacturing, NAICS 3333); 1 of them has 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: PLX INC. · JUN 2026
Street address
SAM.gov: 40 W JEFRYN BLVD · JUN 2026
City
SAM.gov: DEER PARK · JUN 2026
State
SAM.gov: NY · JUN 2026
Coordinates
Census geocoder: 40.757865174014,-73.301286430113 · JUL 2026
Employees (band)
DOL: 1-19 · APR 2025
Website
SAM.gov: http://www.plxinc.com · JUN 2026
Year established
Company website: 1955 · SEP 2026
CAGE code
SAM.gov: 22255 · JUN 2026
Retirement plan filing (Form 5500)
DOL: 5 active participants, plan year ending 2025-04-23, 2 plan(s) · APR 2025
SAM registration expires
SAM.gov: 2027-06-02 · JUN 2026

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