Ldj Manufacturing, INC.
At a glance
Employees100-499
In business since1995
HeadquartersPella, IA
US patents9
SAM.gov UEIK4ENJWSATU89
CAGE code56VC3
Incorporated inIA
Brands
LDJ Manufacturing, Inc.
HeaderThis company sells these brands.
- fluid service equipment
- service trailers
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
9 US patents granted 2016–2021, 3 of them in the five years to SEP 2025, including 4 design patents.
Handling 3Transport 1Chemical engineering 1
- Remote filling systemUS 11,111,128 · granted SEP 7, 2021
- Fluid delivery deviceUS 10,894,709 · granted JAN 19, 2021
- Multi-tank trailerUS 10,821,873 · granted NOV 3, 2020
- Fluid delivery deviceUS 10,654,704 · granted MAY 19, 2020
- Multi-tank utility trailer with utility boxUS D867216 · granted NOV 19, 2019
Newest 5 shown · Granted to Ldj Manufacturing, INC. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Ldj Manufacturing, INC. | Pella | IA | 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.