Nielsen-kellerman CO
At a glance
Employees100-499
In business sinceNot reported
HeadquartersBoothwyn, PA
US patents19
SAM.gov UEIWCGMT6E7MQ89
CAGE code1KFL8
Incorporated inDE
LEI2549005446ZNED7G4093
- hundreds
- measurements
- brands
- athletes
- firefighters
- soldiers
- hunters
- scientists
- meteorologists
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
19 US patents granted 1992–2024, 4 of them in the five years to SEP 2025, including 7 design patents.
Measurement 8Other special machines 3Audio-visual technology 1
- Apparatus and method for indicating whether a target has been impacted by a projectileUS 11,982,517 · granted MAY 14, 2024
- Apparatus for measuring velocities of projectilesUS 11,320,447 · granted MAY 3, 2022
- Apparatus and method for indicating whether a target has been impacted by a projectileUS 11,280,593 · granted MAR 22, 2022
- Apparatus and method for indicating whether a target has been impacted by a projectileUS 11,137,232 · granted OCT 5, 2021
- MegaphoneUS 9,014,389 · granted APR 21, 2015
Newest 5 shown · Granted to Nielsen-kellerman, CO. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Nielsen-kellerman CO | Boothwyn | PA | 100–499 | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.