3si Security Systems INC
At a glance
Employees100-499
In business sinceNot reported
HeadquartersMalvern, PA
US patents15
SAM.gov UEIYA7YB56L3Y69
CAGE code4MNA1
Incorporated inDE
LEI5493006NGJSOVTOS8A40
Brands
This company sells these brands.
- crime intelligence
- government
- healthcare
- higher education
- logistics
- security teams
- law enforcement
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
15 US patents granted 2003–2024, 3 of them in the five years to SEP 2025.
Control 7Measurement 4Audio-visual technology 1Civil engineering 1Electrical machinery, apparatus, energy 1
- Security tracking device with zone-based alert suppressionUS 11,978,329 · granted MAY 7, 2024
- Security tracking device with zone-based alert suppressionUS 11,620,889 · granted APR 4, 2023
- Flexible anti-theft pack for tracking and locationUS 10,812,940 · granted OCT 20, 2020
- Asset tracking device configured to selectively retain information during loss of communicationUS 10,140,830 · granted NOV 27, 2018
- Asset tracking device configured to selectively retain information during loss of communicationUS 9,786,146 · granted OCT 10, 2017
Newest 5 shown · Granted to 3SI Security Systems, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| 3si Security Systems INC | Malvern | 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.


