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WINDSOR UNDERGROUND LLC

UEI: FXMCXA3HZNM3CAGE: 8B7Q3

WINDSOR UNDERGROUND LLC is a federal contractor, registered under UEI FXMCXA3HZNM3 and CAGE code 8B7Q3. It has been awarded $11,575 in federal contracts. Primary work spans All Other Specialty Trade Contractors. Top awarding agencies include Department Of The Interior.

Contact Information

Registration and classification details

Registration

UEI Code

FXMCXA3HZNM3

CAGE Code

8B7Q3

Entity Structure

Corporate Entity (Not Tax Exempt)

Established

N/A

Business Classifications

For Profit OrganizationSubchapter S Corporation

NAICS Codes

237110Water and Sewer Line and Related Structures Construction
237130Power and Communication Line and Related Structures Construction(Primary)

Federal Contracting Overview

Award totals, agency breakdown, NAICS distribution, and geographic footprint.

AI Capability Profile

Windsor Underground LLC specializes in underground utility construction and infrastructure rehabilitation services, leveraging precise excavation techniques, directional drilling, and trenchless technologies to deliver mission-critical civil works. The company’s technical expertise centers on pipeli...

Windsor Underground LLC specializes in underground utility construction and infrastructure rehabilitation services, leveraging precise excavation techniques, directional drilling, and trenchless technologies to deliver mission-critical civil works. The company’s technical expertise centers on pipeline installation, conduit placement, and subsurface utility engineering, with a focus on minimizing surface disruption in urban and sensitive environments. Their approach emphasizes safety compliance, geotechnical coordination, and adherence to ASTM and ASCE standards for subsurface infrastructure projects. Key differentiators include adaptive field methodologies for complex soil conditions and a strong operational discipline in coordinating with existing utility networks during sensitive installations. Award history does not provide sufficient detail to identify specific federal agencies or programmatic relationships. Consequently, no verifiable agency experience can be confirmed based on available data. The primary NAICS code 237130, Underground Utility Construction, reflects a focused market position in nonstructural subsurface civil works, including water, sewer, gas, and telecommunications line installation. This places the company squarely within the infrastructure rehabilitation and public works vertical, serving projects requiring precision underground execution without open-cut disruption. Their specialization aligns with federal and state initiatives aimed at modernizing aging utility networks through minimally invasive methods. Windsor Underground LLC is structured as a small business under the 2L entity classification and is headquartered in Phoenix, Arizona. The company holds no federal certifications, including 8(a), HUBZone, or WOSB. Its geographic presence is centered in the Southwest, with operations calibrated to arid and semi-arid terrain conditions common in Arizona and neighboring states. The firm positions itself as a nimble, technically proficient contractor for subsurface infrastructure needs within public works and utility modernization markets.

Key Performance Metrics

Awards Count

1

All time

Active

0

Currently performing

Completed

1

Past period of performance

Total Awards

All time

Contracts

Prime · all time

Subcontracts

Sub · all time

Grants

Prime · all time

Subgrants

Sub · all time

Award Analytics & Distribution

Awards by Agency
Awards by NAICS
Awards by Agency Over Time
Awards by Place of Performance

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Open opportunities in WINDSOR UNDERGROUND LLC's top NAICS codes and agencies

NAICS: 238990
New
On-Call Maintenance and Minor Construction Services
Solicitation # RFP-VC-26-008
The Inland Empire Regional Composting Authority is soliciting proposals under RFP-VC-26-008 for licensed general contractors to provide on-call maintenance and minor construction services in California. This Master Services Contract will utilize time-and-materials Task Orders to address facility needs that may require short-notice performance, including millwright and welding activities, fire sprinkler system maintenance, general construction such as framing and concrete, and the maintenance of conveyors, hoppers, and heavy equipment. The Authority intends to award multiple contracts based on an evaluation of price and payment terms, the nature of any exceptions taken to the RFP, personnel experience, performance history, and the quality of the proposed work plan. Additional consideration will be given to equipment ownership for emergency work and alignment with the Agency's Environmental Purchasing Policy. Proposals must be submitted electronically via PlanetBids by October 29, 2026, at 3:00 p.m. and must include a signed cover letter, a fully burdened hourly rate schedule for regular, after-hours, and holiday work, and at least three professional references. This is a prevailing wage contract subject to California Labor Code Section 1770, requiring contractors to be registered with the Department of Industrial Relations. Key contractual requirements include the provision of performance and payment bonds for any Task Order exceeding 25,000 dollars and compliance with OSHA safety standards. The contract is governed by the laws of the State of California in San Bernardino County, with a right to audit extending 12 months after final payment. Invoices are submitted monthly to the Accounts Payable Department and are typically paid within 30 days, though expedited payment options are available in exchange for a percentage discount.
Inland Empire Utilities Agency

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