The Landmark Group INC
Doing business as National Ramp
At a glance
Employees20-99
In business since2010
HeadquartersValley Cottage, NY
US patents2
SAM.gov UEISL4XBHD57DN9
CAGE code6GFB8
Incorporated inNY
- installs modular wheelchair ramps
- mobility ramps
- homes
- stairs
- walkway canopies
- healthcare facilities
- schools
- government buildings
- North America
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of GoodsSubchapter S Corporation
Self-certified by the company in its SAM.gov registration
Patents
2 US patents granted 2021–2023, 2 of them in the five years to SEP 2025.
Civil engineering 2
- Elbow joint connectorUS 11,585,098 · granted FEB 21, 2023
- Elbow joint connectorUS 11,174,645 · granted NOV 16, 2021
Granted to The Landmark Group, INC. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| The Landmark Group INC | Valley Cottage | NY | 20–99 | 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.