Harcosemco LLC
Doing business as Harcosemco
At a glance
EmployeesNot reported
In business since1954
HeadquartersBranford, CT
US patents9
SAM.gov UEILG1NQXVCYMB4
CAGE code00060
Incorporated inCT
Brands
Scrolltop
SubsystemsThis company sells these brands.
- components
- fixed wing
- environmental sensors
- harnesses
- landing gear
- aerospace
Named on the company’s own website, read JUL 29, 2026
What they make
CareersCareers page — seen SEP 9, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
9 US patents granted 2021–2025, 9 of them in the five years to SEP 2025, including 1 design patent.
Measurement 7Electrical machinery, apparatus, energy 1
- Junction for a harnessUS D1086072 · granted JUL 29, 2025
- Temperature compensation method for hall effect proximity sensorsUS 12,326,485 · granted JUN 10, 2025
- Optimized thermocouple system and methodUS 12,078,552 · granted SEP 3, 2024
- Mass flow sensor having an airfoilUS 11,846,549 · granted DEC 19, 2023
- Optimized thermocouple system and methodUS 11,525,741 · granted DEC 13, 2022
Newest 5 shown · Granted to HarcoSemco, LLC · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Harcosemco LLC | Branford | CT | — | 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.