Federal contractor · UPPER MARLBORO, MD
HORIZON MECHANICAL SERVICES LLC
HORIZON MECHANICAL SERVICES LLC received $196.2K in federal contract obligations in FY2026, on 4 awards (+289% vs FY2025). Since FY2019: $340.4K. Its largest customer was National Aeronautics and Space Administration ($81.6K).
- Obligations · FY2026
- $196.2K
- New awards
- 4
- Sole-source
- 0.0%
- Single offer
- 0.0%
- UEI
- KM1LJJC4M8H5
Spending by fiscal year
Obligations per federal fiscal year (October–September).
- 2.3KFY2019
- 2.4KFY2020
- 51.1KFY2021
- 41.9KFY2022
- -13.2KFY2023
- 9.3KFY2024
- 50.4KFY2025
- 196.2KFY2026
Top buying agencies
Obligations in FY2026.
- 1 awards
- U.S. Geological Survey$69.6K35%1 awards
- 1 awards
- Department of the Navy$18.6K9.5%1 awards
What was bought · Where the work was performed
Obligations in FY2026.
What was bought
- Equipment maintenance$88.1K45%
- Construction & real property$81.6K42%
- Professional services$26.5K13%
Where the work was performed
- Prince George's County, MD$151.2K77%
- Montgomery County, MD$26.5K13%
- District of Columbia, DC$18.6K9.5%
Integrity signals
Shares of the year's obligations, next to the country's.
- Low competition0.0%US 39% · $0
- Sole-source awards0.0%US 30% · $0
- Single-offer competitions0.0%US 8.7% · $0
- Urgency justifications0.0%US 5.1% · $0
A signal is a reason to look closer, not evidence of wrongdoing: most sole-source awards are lawful and justified.
Largest awards
- National Aeronautics and Space Administration· Prince George's County, MD· Construction & real property· Jun 24, 2026 – Jun 24, 2026· 80NSSC26P0878
- U.S. Geological Survey· Prince George's County, MD· Equipment maintenance· Sep 15, 2026 – Sep 15, 2026· 140G0126P0333
- National Institute of Standards and Technology· Montgomery County, MD· Professional services· Jun 20, 2025 – Sep 11, 2026· 1333ND25PNB730203
- Department of the Navy· District of Columbia, DC· Equipment maintenance· Feb 6, 2026 – Feb 6, 2026· N0017326P1813
Competitors
Companies that win from the same buyers in the same markets: obligations by agency and industry compared over the last three fiscal years.
Compared on 4 markets (agency × industry), FY2024–FY2026.
- HIGH-REZ ANALYTICAL, LLC$91.9KSEBASTIAN, FL · 34% of this company's obligations are in markets they both serveNational Institute of Standards and Technology · Electronic and precision equipment repair and maintenance
- VENEZIA CONSTRUCTION INC$87.3KFREMONT, CA · 32% of this company's obligations are in markets they both serveNational Aeronautics and Space Administration · Facilities support services
- KERRVILLE, TX · 27% of this company's obligations are in markets they both serveNational Aeronautics and Space Administration · Facilities support services
Showing the top 3 of 25 competitors. Open the profile for the full list.
Who sells to the same buyers in the same markets, not who wins against whom on a given contract. Prime contract obligations by the agency and NAICS code of each award; subawards are never added. A company is a family of legal entities, joined by parent UEI or, in part, by an AI reading of names.
Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 9, 2026, loaded Oct 9, 2026 · FY2024–FY2026.
Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 9, 2026, loaded Oct 9, 2026.