Grant Engineering & Construction Group LLC
Newark, NJ Doing business as SLX Infrastructure
- UEI
- SL4SVHGQF3L5
- CAGE
- 6HH64
- Primary NAICS
- 541330 Engineering Services
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
-
- 236116 New Multifamily Housing Construction (except For-Sale Builders)
- 236220 Commercial and Institutional Building Construction
- 237110 Water and Sewer Line and Related Structures Construction
- 237310 Highway, Street, and Bridge Construction
- 237990 Other Heavy and Civil Engineering Construction
- 541310 Architectural Services
- 541370 Surveying and Mapping (except Geophysical) Services
- SAM.gov registration date
- Physical address
- Enterprise Development Centers, 211 Warren St #209, Newark, NJ 07103, USA
- Website
- grantecg.com
- Founded
- 2007
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- Civil Engineering
- SIC code
- 87 Engineering & Management Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract vehicles
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| 3/4" stone | New Jersey National Guard (ARNG) | $123,917 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| GCI Inc. | Longwood, FL | 541330 Engineering Services |
| EES | Englewood Cliffs, NJ | 541330 Engineering Services |
| River City Enterprises, LLC | Richmond, VA | 236220 Commercial and Institutional Building Construction |
| Integrated Project Solutions | Walnut Creek, CA | 541330 Engineering Services |
| Engineered Systems & Services, L.L.C. | Suwanee, GA | 541330 Engineering Services |
About the company
Grant Engineering & Construction Group LLC, doing business as SLX Infrastructure, is a minority-owned, Black American-owned small disadvantaged business based in Newark, New Jersey, that operates as a prime contractor on federal work, holding a GSA Federal Supply Schedule contract under the Multiple Award Schedule (MAS). The vendor competes full-and-open; no awards in the source carry set-aside designations. SLX Infrastructure is structured as a limited liability company and holds DOT Certification as a Disadvantaged Business Enterprise.
The vendor's federal footprint is minimal and represents two awards across an eleven-year span. The first award, in 2011, came from the Department of the Air Force Air National Guard and carried a potential value of $124 thousand. The second and more recent award is the GSA MAS contract issued October 3, 2022, with a $500 thousand ceiling and an ultimate completion date of October 2, 2027. The combined potential value across both awards is $624 thousand, of which $124 thousand (20%) has been obligated to date. Award activity shows a single placement in 2011 and a single placement in 2022; no awards appear in the source between those years or after 2022.
SLX Infrastructure's concrete capability framing derives from the GSA MAS labor portfolio. The vendor offers four active labor categories spanning civil engineering, project engineering, design, and CAD technical work, all grounded in bachelor's-degree requirements and experience levels ranging from five to ten years. Hourly rates span $85.64 to $143.17 per hour, with no security-cleared positions offered. The rate structure reflects mid-market engineering support — CAD technicians and design technicians at the lower end, project and senior civil engineers at the higher end. The vendor's NAICS coding splits between Engineering Services (one award) and Crushed and Broken Limestone Mining and Quarrying (one award), a mismatch that likely reflects the diversity of the two-award sample rather than a dual operating model.
Customer concentration is equally divided: GSA Federal Acquisition Service anchors $500 thousand (100% of MAS potential value), and the Air Force Air National Guard holds the single prior award for $124 thousand. No evidence of customer concentration or recurring customer relationships appears in the award history. Given the sparse activity, SLX Infrastructure operates as a niche GSA Schedule vendor with minimal recent federal traction and no active sub-award relationships.
Quick answers
Is Grant Engineering & Construction Group LLC registered in SAM.gov?
Yes. Grant Engineering & Construction Group LLC's SAM.gov registration is active through January 23, 2027.
Which contract vehicles does Grant Engineering & Construction Group LLC hold?
Grant Engineering & Construction Group LLC holds a place on 1 federal contract vehicle: MAS.
What is Grant Engineering & Construction Group LLC's most recent federal award?
Grant Engineering & Construction Group LLC's most recent federal contract award is 3/4" stone (W912KN11P0103), from New Jersey National Guard (ARNG), on September 8, 2011.
On GovTribe
See Grant Engineering & Construction Group LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Funding analysis by agency, NAICS and set-aside
- Similar vendors