Horwitz LLC
Doing business as NSI
- UEI
- UW6GKWANZV63
- CAGE
- 57GL8
- SAM.gov registration
- Expired
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- Corporate family
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- New Hope, MN DFGXFLY7UM41
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- SAM.gov registration date
- Website
- horwitzllc.com
- Founded
- 1918
- Employees
- 51-250
- Estimated annual revenue
- $10M-$50M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- SIC code
- 76 Miscellaneous Repair Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $67,603 |
| FY2025 | $66,104 |
| FY2024 | $65,652 |
| FY2023 | $32,292 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Interior | $51,879 | |
| 2 | Department of Homeland Security | $15,724 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Strut Mechanical, Inc. | St. Cloud, FL | 238220 Plumbing, Heating, and Air-Conditioning Contractors |
| Total Mechanical Services Inc. | Saint Paul Park, MN | 238220 Plumbing, Heating, and Air-Conditioning Contractors |
| Gartner Refrigeration Company | Duluth, MN | 238220 Plumbing, Heating, and Air-Conditioning Contractors |
| Lee Plumbing & Heating Co Inc. | Thief River Falls, MN | 238220 Plumbing, Heating, and Air-Conditioning Contractors |
| Complete Control Inc. | Wisconsin Rapids, WI | 238220 Plumbing, Heating, and Air-Conditioning Contractors |
About the company
Horwitz LLC, doing business as NSI, is a for-profit limited liability company registered in SAM.gov since 2008, specializing in heating, ventilation, and air conditioning (HVAC) services for federal agencies. Based in New Hope, Minnesota, the company has established itself as a provider of critical maintenance and repair services for government facilities, with a particular focus on federal buildings and wildlife refuge infrastructure. The company is structured as a corporate entity and has demonstrated a consistent ability to secure federal contract awards across multiple agencies.
Horwitz LLC has primarily secured federal contract awards from the U.S. Department of the Interior's Fish and Wildlife Service and U.S. Immigration and Customs Enforcement, with contract values ranging from $14,225 to $175,395. The company's contract work has consistently involved HVAC-related services, including preventative maintenance, emergency repairs, quarterly inspections, filter changes, seasonal equipment startups, boiler checks, and geothermal system services. These contracts have been predominantly for the Minnesota Valley National Wildlife Refuge, covering facilities in locations such as Bloomington and St. Paul, Minnesota. None of the federal contract awards have utilized small business set-asides, and the contracts have been structured as firm fixed-price purchase orders with performance periods ranging from short-term emergency repairs to multi-year maintenance agreements extending through 2028. The contracts demonstrate Horwitz LLC's specialized expertise in maintaining complex environmental systems for federal government facilities.
Quick answers
Is Horwitz LLC registered in SAM.gov?
Horwitz LLC's SAM.gov registration expired on October 16, 2026.
How much has Horwitz LLC received in federal contracts?
Federal contracts obligated $66,104 to Horwitz LLC in fiscal year 2025 and $231,651 in fiscal years 2023 through 2027.
How does Horwitz LLC rank among federal contractors?
Horwitz LLC ranked #30 in NAICS 42372 and #99 in NAICS 4237 in FY2025.
What is Horwitz LLC's most recent federal award?
Horwitz LLC's most recent federal contract award is Plumbing repairs for ICE whipple building, 1 federal building fort snelling saint paul, minnesota (70CDCR25P00000036), from Immigration and Customs Enforcement, on September 17, 2025.
On GovTribe
See Horwitz LLC's full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors