System Engineering International INC
At a glance
EmployeesNot reported
In business sinceNot reported
HeadquartersFrederick, MD
US patents2
SAM.gov UEIYDMBFPM5CGA6
CAGE code0KW47
Incorporated inMD
- direct current
- critical power systems
- customer-premises power equipment
- 2U rack
- industrial users
- telephone service providers
- military
- uninterruptible power systems
- ISDN
- DC power products
- 24Vdc
- 48Vdc
Named on the company’s own website, read JUL 29, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
2 US patents granted 2007–2009, none of them in the five years to SEP 2025.
Digital communication 2
- Power over ethernet battery backupUS 7,498,692 · granted MAR 3, 2009
- Power over ethernet battery backupUS 7,294,940 · granted NOV 13, 2007
Granted to System Engineering International · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plants
2 FACILITIES| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| System Engineering International, INC. | Frederick | MD | — | UNVERIFIED |
| System Engineering International INC | Frederick | MD | — | 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.