Federal contractor profile

HORIZON MECHANICAL SERVICES LLC

UEI KM1LJJC4M8H5CAGE 393D7Company website ↗

Active
Small Business

Overview

Legal name
HORIZON MECHANICAL SERVICES LLC
Registered location
UPPER MARLBORO, MD, USA
Website
Company website ↗
Primary NAICS
811310 — Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
Latest award activity
Sep 11, 2026
Read company summary

HORIZON MECHANICAL SERVICES LLC is associated with UEI KM1LJJC4M8H5 and CAGE 393D7 in public federal records. AcornBids currently links 4 prime awards totaling $186.4K in obligations to this entity. Its largest recorded federal customer by obligations is Department of Commerce. Its recorded federal awards include work classified as Electronic and Precision Equipment Repair and Maintenance; Facilities Support Services; Plumbing, Heating, and Air-Conditioning Contractors. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 811310 (Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance). Its public SAM.gov registration lists UPPER MARLBORO, MD, USA.

At a glance

Lifetime prime obligations$186.4K
Prime awards4
Awards with future end dates3
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 28, 2026. Refresh pending; these totals may be out of date.

Business information

Public SAM.gov registration details.

Legal name
HORIZON MECHANICAL SERVICES LLC
UEI
KM1LJJC4M8H5
CAGE
393D7
Registered address
8039 PENN RANDALL PL STE C, UPPER MARLBORO, MD, 20772, USA
Registration status
Active
Primary NAICS
811310 — Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
SAM activation
Feb 2, 2026
Initial registration
May 15, 2005
Entity start
Apr 9, 2002
SAM updated
Feb 2, 2026
Registration expires
Jan 29, 2027
Fiscal year end
Dec 31
Place of incorporation
MD, 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
1333ND25PNB730203OU73-25-NEW-003 - MAINTENANCE AND REPAIR SUPPORT FOR NIST VILTER CHILLER, AHU-15, AND ENVIRONMENTAL CHAMBERDepartment of Commerce$32.8KJun 23, 2025Jun 22, 2028
80NSSC26P0878HVAC AND SMALL APPLIANCE (KEURIG, INSTAHOT, ICE MACHINES) MAINTENANCE AND REPAIR SERVICES.National Aeronautics and Space Administration$81.6KOct 1, 2026Aug 31, 2028
N0017326P1813HVAC MAINTENANCE AGREEMENTDepartment of Defense$18.6KFeb 5, 2026Sep 30, 2026
1333ND24PNB730115NIST VILTER CHILLER, AHU-15, AND ENVIRONMENTAL CHAMBER MAINTENANCE CONTRACTDepartment of Commerce$53.3KMay 17, 2024May 16, 2025

Upcoming positioning windows

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

HVAC MAINTENANCE AGREEMENT
Department of Defense$18.6K obligationsEnds Sep 30, 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 updatedFeb 2, 2026
Source loadedSep 26, 2026
Initial registrationMay 15, 2005
Entity startApr 9, 2002

Registration classifications: Small Business. These are separate from the reported certificates above.

IndustryReported size status
238220 — Plumbing, Heating, and Air-Conditioning ContractorsNot reported
811310 — Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and MaintenanceNot reported
ContactRolePublished contact methodsEvidenceSource date
URAL T PAYTONGovernment businessContact method not publishedSAM registrationNot available
URAL T PAYTONAlternate government businessContact method not publishedSAM registrationNot available
URAL T PAYTONElectronic businessContact method not publishedSAM registrationNot available
URAL T PAYTONAlternate electronic businessContact method not publishedSAM registrationNot available
Registered industries
  • 238220 — Plumbing, Heating, and Air-Conditioning Contractors
  • 811310 — Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
Registered products and services
  • 4110 — Refrigeration Equipment
  • 4120 — Air Conditioning Equipment
  • 4130 — Refrigeration and Air Conditioning Components
  • 4140 — Fans, Air Circulators, and Blower Equipment
  • 4310 — Compressors and Vacuum Pumps
  • 4330 — Centrifugals, Separators, and Pressure and Vacuum Filters
  • 4410 — Industrial Boilers
  • 4420 — Heat Exchangers and Steam Condensers
  • 4440 — Driers, Dehydrators, and Anhydrators
  • 6105 — Motors, Electrical

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

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About HORIZON MECHANICAL SERVICES LLC

What products and services appear in its federal awards?

Recorded award industries: 811210 — Electronic and Precision Equipment Repair and Maintenance; 561210 — Facilities Support Services; 238220 — Plumbing, Heating, and Air-Conditioning Contractors.

Recorded products and services: R425 — Engineering and Technical Services; Z1AZ — MAINTENANCE OF OTHER ADMINISTRATIVE FACILITIES AND SERVICE BUILDINGS; J041 — Maintenance, Repair and Rebuilding of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment.

Examples from recent award records:

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

Where is the company registered?

8039 PENN RANDALL PL STE C, UPPER MARLBORO, Maryland 20772, 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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