Federal contractor profile

L & J BUILDING COMPANY LLC

UEI HD1QGQ43VNW3CAGE 4JRA6

Active
Small Business

Overview

Legal name
L & J BUILDING COMPANY LLC
Also known as
ROCK ENTERPRISE
Registered location
KANSAS CITY, MO, USA
Primary NAICS
236220 — Commercial and Institutional Building Construction
Latest award activity
Jun 3, 2026
Read company summary

L & J BUILDING COMPANY LLC is associated with UEI HD1QGQ43VNW3 and CAGE 4JRA6 in public federal records. AcornBids currently links 5 prime awards totaling $11.5M in obligations to this entity. Its largest recorded federal customer by obligations is Department of Defense. Its recorded federal awards include work classified as Commercial and Institutional Building Construction; Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 236220 (Commercial and Institutional Building Construction). Its public SAM.gov registration lists KANSAS CITY, MO, USA.

At a glance

Lifetime prime obligations$11.5M
Prime awards5
Awards with future end dates2
Top-agency concentration
Not available

Why this customer concentration

Detailed agency totals are not available in this stored profile.

Largest positive coded-agency total ÷ all positive coded-agency totals × 100

Missing data is shown as unavailable.

Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 27, 2026. Refresh pending; these totals may be out of date.

Business information

Public SAM.gov registration details.

Legal name
L & J BUILDING COMPANY LLC
Doing business as
ROCK ENTERPRISE
UEI
HD1QGQ43VNW3
CAGE
4JRA6
Registered address
130 E 13TH AVE, KANSAS CITY, MO, 64116, USA
Registration status
Active
Primary NAICS
236220 — Commercial and Institutional Building Construction
SAM activation
Sep 24, 2025
Initial registration
Sep 18, 2006
Entity start
Sep 13, 2006
SAM updated
Sep 24, 2025
Registration expires
Sep 22, 2026
Fiscal year end
Dec 31
Place of incorporation
MO, USA

View SAM.gov source

Federal award analysis

Net transaction obligations by federal fiscal period.

Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.

Recent federal awards

Prime contract awards. Select an award to review its history and source evidence.

Award / descriptionAwarding agencyObligationsStart dateEnd date
W50S7G25CA006COMMUNICATION FACILITY HVAC UPGRADESDepartment of Defense$459.5KOct 15, 2025Oct 27, 2026
W50S8922F0016REPAIR ASE FACILITY B608-THIS PROJECT WILL RENOVATE 11,404 SF IN BUILDING 608, ASE STORAGE. THE PROJECT INCLUDES BUT IS NOT LIMITED TO DEMOLITION AND RENOVATION OF THE INTERIOR…Department of Defense$4.4MSep 28, 2022Aug 29, 2025
W50S8923F0025CONSTRUCT GASNT TRANSPORTABLE STORAGE FACILITY. THIS PROJECT IS TO CONSTRUCT A 1000SF FACILITY FOR GASNT EQUIPMENT AND AN ALTERNATE COMMAND POST AND CRISIS ACTION TEAM FACILITY.Department of Defense$1.4MSep 22, 2023Aug 29, 2025
N6893626P5132HVAC REPLACEMENTDepartment of Defense$162.0KMar 12, 2026Oct 5, 2026
140P8524C0003CONSTRUCT NEW ENTRANCE STATION TO REDUCE TRAFFIC AND PROVIDE A SAFER WORKING ENVIRONMENT, JOSHUA TREE NATIONAL PARK, SAN BERNARDINO COUNTY, CALIFORNIA.Department of the Interior$5.1MMay 1, 2024Feb 20, 2026

Upcoming positioning windows

Modeled recompete windows are estimates, not announced solicitations or guarantees.

COMMUNICATION FACILITY HVAC UPGRADES
Department of Defense$459.5K obligationsEnds Oct 27, 2026
Recompete signal 60/100

Why this recompete signal

The original per-signal inputs are unavailable in this stored profile.

Stored score: 60/100

The award detail page links to the underlying source record.

HVAC REPLACEMENT
Department of Defense$162.0K obligationsEnds Oct 5, 2026
Recompete signal 55/100

Why this recompete signal

The original per-signal inputs are unavailable in this stored profile.

Stored score: 55/100

The award detail page links to the underlying source record.

Registration, certifications & contacts

Registration evidenceDate
SAM updatedSep 24, 2025
Source loadedSep 26, 2026
Initial registrationSep 18, 2006
Entity startSep 13, 2006

Registration classifications: Self Certified Small Disadvantaged Business, Small Business. These are separate from the reported certificates above.

IndustryReported size status
236210 — Industrial Building ConstructionNot reported
236220 — Commercial and Institutional Building ConstructionNot reported
237310 — Highway, Street, and Bridge ConstructionNot reported
237990 — Other Heavy and Civil Engineering ConstructionNot reported
238210 — Electrical Contractors and Other Wiring Installation ContractorsNot reported
238220 — Plumbing, Heating, and Air-Conditioning ContractorsNot reported
238290 — Other Building Equipment ContractorsNot reported
333415 — Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment ManufacturingNot reported
334290 — Other Communications Equipment ManufacturingNot reported
561730 — Landscaping ServicesNot reported
561790 — Other Services to Buildings and DwellingsNot reported
ContactRolePublished contact methodsEvidenceSource date
RICHIE SANDERSGovernment businessContact method not publishedSAM registrationNot available
RICHIE SANDERSAlternate government businessContact method not publishedSAM registrationNot available
RICHIE SANDERSElectronic businessContact method not publishedSAM registrationNot available
RICHIE SANDERSAlternate electronic businessContact method not publishedSAM registrationNot available
Registered industries
  • 236210 — Industrial Building Construction
  • 236220 — Commercial and Institutional Building Construction
  • 237310 — Highway, Street, and Bridge Construction
  • 237990 — Other Heavy and Civil Engineering Construction
  • 238210 — Electrical Contractors and Other Wiring Installation Contractors
  • 238220 — Plumbing, Heating, and Air-Conditioning Contractors
  • 238290 — Other Building Equipment Contractors
  • 333415 — Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
  • 334290 — Other Communications Equipment Manufacturing
  • 561730 — Landscaping Services
  • 561790 — Other Services to Buildings and Dwellings
Registered products and services
  • 4120 — Air Conditioning Equipment

Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source

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About L & J BUILDING COMPANY LLC

What products and services appear in its federal awards?

Recorded award industries: 236220 — Commercial and Institutional Building Construction; 333415 — Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing.

Recorded products and services: Y1JZ — CONSTRUCTION OF MISCELLANEOUS BUILDINGS; Z2AA — REPAIR OR ALTERATION OF OFFICE BUILDINGS; Z1AA — MAINTENANCE OF OFFICE BUILDINGS.

Examples from recent award records:

These records describe federal award work, not every company capability. Review the award evidence.

Where is the company registered?

130 E 13TH AVE, KANSAS CITY, Missouri 64116, United States

Registered location from SAM.gov; award performance locations may differ.

Explore related contractor directories

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Data coverage and methodology

Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.

No official subaward rows are loaded, so Acorn does not claim known teaming relationships.

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