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CORNERSTONE CONSTRUCTION GROUP LLC

UEI: C9E7V82LAD16CAGE: 6ZBH6

CORNERSTONE CONSTRUCTION GROUP LLC is a federal contractor, registered under UEI C9E7V82LAD16 and CAGE code 6ZBH6. It has been awarded $14,170,648 across 31 federal contracts. Primary work spans Other Heavy and Civil Engineering Construction, Janitorial Services, and Landscaping Services. Top awarding agencies include Department Of Defense, General Services Administration, and Department Of Transportation.

Contact Information

Registration and classification details

Phone+1 (555) 000-0000

Websitewww.cornerstone-constructiongroup.com

Address123 Main St, City, ST 12345

Registration

UEI Code

C9E7V82LAD16

CAGE Code

6ZBH6

Entity Structure

Corporate Entity (Not Tax Exempt)

Established

N/A

Business Classifications

23272XHQLJOY

NAICS Codes

236115New Single-Family Housing Construction (except For-Sale Builders)

236116New Multifamily Housing Construction (except For-Sale Builders)(Primary)

236117New Housing For-Sale Builders

236118Residential Remodelers

236210Industrial Building Construction

+45 more

Federal Contracting Overview

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

AI Capability Profile

Cornerstone Construction Group LLC specializes in landscape maintenance and janitorial services for federal facilities, with deep expertise in grounds management, irrigation system upgrades, tree removal and replacement, and custodial operations for high-security government buildings. Their technica...

Key Performance Metrics

Awards Count

0

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Active

0

Currently performing

Completed

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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

Department Of Defense$12.2M86.3%

General Services Administration$1.6M11.5%

Department Of Transportation$313.1K2.2%

Awards by NAICS

237990 - Other Heavy and Civil Engineering Construction$10.7M75.3%

561720 - Janitorial Services$2.2M15.6%

561730 - Landscaping Services$964.0K6.8%

238990 - All Other Specialty Trade Contractors$247.8K1.8%

Others - Other NAICS codes (3 codes, <0.5% each)$78.6K0.6%

Awards by Agency Over Time

Awards by Place of Performance

Open opportunities in CORNERSTONE CONSTRUCTION GROUP LLC's top NAICS codes and agencies

Site Grading and EarthworkThe contract titled Site Grading and Earthwork is a subcontract for excavation, grading, and soil stabilization work intended to prepare construction sites for future development. It is issued under NAICS code 237990 and managed by the Department of Defense through the CONSTRUCTION & EQUIPMENT MRO SVC I organization, with the place of performance specified as Tinker Air Force Base, Oklahoma, zip code 73145-8000. The solicitation was posted on August 5, 2026, and responses are due by August 17, 2026, providing a twelve-day window for contractors to submit proposals. The work requires specialized expertise in earthmoving and ground preparation to ensure site stability and compliance with construction readiness standards. No set-aside classification is specified, indicating the opportunity is open to all eligible subcontractors regardless of size or designation. Interested parties must access the full solicitation details through the provided DIBBS link to review technical specifications, performance requirements, and submission instructions.

CONSTRUCTION & EQUIPMENT MRO SVC I

POSTED

about 8 hours ago

DEADLINE

Erosion Control and Landscaping

ASC COMMODITIES DIVISION

POSTED

about 8 hours ago

DEADLINE

Erosion and Sediment ControlThe contract pertains to erosion and sediment control measures required during construction activities, specifically involving the installation of silt fences, erosion blankets, and other stormwater management systems. It is issued as a subcontract under a Total Small Business Set-Aside designation, reserved exclusively for small businesses as defined by the SBA, with the NAICS code 561730 indicating it falls under waste collection and treatment services. The solicitation was posted on August 5, 2026, with responses due by August 14, 2026, and is managed by the Nuclear Reactor Program under the Department of Defense. All work must be performed at the designated location in San Diego, California, with a zip code of 92136-3581, and the contractor is expected to ensure compliance with environmental standards to prevent sediment runoff and manage stormwater effectively throughout the project lifecycle.

NUCLEAR REACTOR PROGRAM

POSTED

about 8 hours ago

DEADLINE

Erosion Control and LandscapingThe contract calls for the installation of erosion control measures and final site landscaping at Cherry Point, North Carolina, with a primary focus on seeding, sod installation, and irrigation system implementation. Targeted under NAICS code 561730, this subcontract is issued by the Defense Logistics Agency under the Department of Defense and is expected to support environmental stabilization and aesthetic completion of a federal facility. The solicitation was posted on August 5, 2026, with responses due by August 13, 2026, indicating a narrow window for qualified contractors to submit proposals. Work must be performed at the specified location, 28533-0021, and no set-aside provisions are indicated, meaning the opportunity is open to all eligible subcontractors regardless of size or status. All project execution will be governed by the terms outlined in the official solicitation accessible through the DIBBS portal.

Defense Logistics Agency

POSTED

about 8 hours ago

DEADLINE

AIRFIELD 2028 ALL PROJECTS (AIP / AUI / CIRCUITS / FOD) CombinedThe contract targets comprehensive upgrades to the airfield infrastructure at the Port of Seattle, focusing on modernizing lighting systems by replacing circuits with low megger readings and installing energy-efficient LED fixtures and signage throughout the airfield. Parallel efforts will address deteriorating pavement and critical utilities to ensure operational safety and longevity. Wildlife hazard management is a key component, involving the removal of turf edge dams along runways, taxiways, and access roads, installation of anti-perching devices on airfield signs, and mitigation of ponding through regrading and new storm drainage systems to reduce bird activity and water accumulation. Additionally, failing flush fire hydrant access hatches will be replaced to improve emergency response access and compliance with safety standards. The project is forecasted under NAICS code 237990 and is managed by the Aviation Project Management Group, with Yanet Maldonado listed as the primary point of contact for inquiries.

Aviation Project Management Group

POSTED

about 8 hours ago

DEADLINE

AIRFIELD 2030 ALL PROJECTS (AIP / AUI / CIRCUITS / FOD) CombinedThe contract encompasses a broad range of airfield infrastructure upgrades at the Port of Seattle, focusing on enhancing safety, efficiency, and compliance. Key components include replacing aging airfield lighting circuits with low megger readings with modern LED fixtures and signs to improve visibility and reduce maintenance costs. Concurrently, failing pavement sections and critical utilities will be removed and replaced to ensure structural integrity and operational reliability. Wildlife hazard mitigation measures involve removing turf edge dams along runways, taxiways, and access roads, installing anti-perching devices on signs to deter birds, and addressing ponding issues through regrading and new storm drainage infrastructure. Additionally, deteriorating flush fire hydrant access hatches will be replaced to ensure rapid access for emergency response teams. The project is categorized under NAICS code 237990 and falls under the Aviation Project Management Group, with the Port of Seattle as the overseeing agency. The solicitation is posted as a forecast with no set-aside classification, indicating it is open to all eligible contractors. Primary point of contact for inquiries is Yanet Maldonado, reachable via email or phone, and additional details can be accessed through the provided portal link. The project is anticipated to begin after the posted date in July 2026, with all work taking place at the airport facility.

Aviation Project Management Group

POSTED

about 8 hours ago

DEADLINE

AIRFIELD 2029 ALL PROJECTS (AIP / AUI / CIRCUITS / FOD) CombinedThe contract encompasses a broad range of airfield infrastructure improvements at the Port of Seattle, focusing on modernization and safety enhancements across multiple systems. Key components include replacing airfield lighting circuits with low megger readings with new LED fixtures and signs to improve reliability and energy efficiency, replacing deteriorating pavement and critical utilities to maintain operational integrity, and implementing comprehensive wildlife hazard management measures such as removing turf edge dams, installing anti-perching devices on signs, and regrading areas with new storm drainage to eliminate ponding and reduce bird attractants. Additionally, failing flush fire hydrant access hatches will be replaced to ensure rapid and unobstructed access for emergency response. The project is part of the AIRFIELD 2029 ALL PROJECTS initiative, classified under NAICS code 237990 for other heavy and civil engineering construction, and is managed by the Aviation Project Management Group under the Port of Seattle. Solicitations are open with a posted date of July 31, 2026, and inquiries should be directed to Yanet Maldonado, the primary point of contact. The work is critical to maintaining airfield safety, regulatory compliance, and long-term operational readiness, with all efforts centered on upgrading aging infrastructure to meet current aviation standards.

Aviation Project Management Group

POSTED

about 8 hours ago

DEADLINE

Jack Block Park Pier ReplacementThe Northwest Seaport Alliance, acting through the Port of Seattle, is forecasting a project to demolish the existing end-of-life pier at Jack Block Park and construct a new pier in its place, along with associated repairs to the pier plaza. This effort aims to modernize aging infrastructure to ensure safety, functionality, and long-term durability for public use and maritime operations. The North American Industry Classification System code 237990 indicates the work falls under other heavy and civil engineering construction, encompassing the full scope of demolition, new construction, and site improvements. The primary point of contact for inquiries is Yanet Maldonado, with Valerie Huffman serving as the project manager, both reachable through the Port of Seattle's official channels. The forecast notice was posted on July 31, 2026, signaling an upcoming procurement process that will solicit qualified contractors to deliver the project at the designated site in Jack Block Park.

Northwest Seaport Alliance (NWSA)

POSTED

about 8 hours ago

DEADLINE

2027 Airfield Project - Contract 1The Port of Seattle’s Aviation Project Management Group is forecasting a comprehensive airfield modernization initiative under Contract 1 for 2027, focused on upgrading critical infrastructure to enhance safety, efficiency, and compliance. The project encompasses replacing aging airfield lighting circuits with low megger readings with new LED fixtures and signage, improving visibility and reducing maintenance loads. Simultaneously, failing pavement sections and essential utilities throughout the airfield will be reconstructed to ensure structural integrity and operational reliability. Wildlife hazard mitigation is a major component, involving the removal of turf edge dams along runways, taxiways, and access roads, installation of anti-perching devices on airfield signs to deter birds, and the regrading of low-lying areas coupled with new storm drainage systems to eliminate ponding that attracts wildlife. Additionally, degraded flush fire hydrant access hatches will be replaced to ensure rapid and unobstructed access for emergency response crews. The project falls under NAICS code 237990 and is managed by the Port of Seattle, with Jay Kim as the primary point of contact and Mengqi Wu serving as the project manager. The solicitation is publicly available through the Port’s portal, though no set-aside type has been specified.

Aviation Project Management Group

POSTED

about 8 hours ago

DEADLINE

2027 Airfield Project - Contract 2The contract involves comprehensive upgrades to the airfield infrastructure at the Port of Seattle, focusing on critical safety and operational enhancements. Key components include replacing airfield lighting circuits with low megger readings and installing new LED lighting fixtures and signs to improve visibility and energy efficiency. Aging pavement and essential utilities will be replaced to ensure structural integrity and reliable service. Wildlife hazard mitigation efforts will remove turf edge dams along runways and taxiways, install anti-perching devices on airfield signs to deter birds, and address ponding issues through regrading and the installation of new storm drainage systems. Additionally, failing flush fire hydrant access hatches will be replaced to ensure unimpeded access for emergency response. The work is scheduled under the 2027 Airfield Project – Contract 2, managed by the Aviation Project Management Group, with primary contact details provided for Moraa Omwega and Project Manager David Neds.

Aviation Project Management Group

POSTED

about 8 hours ago

DEADLINE

T18 Lift Station ReplacementThe Port of Seattle through its Waterfront Project Management division is preparing to replace the entire lift station located at the north lunchroom in Terminal 18. This project is classified under NAICS code 237990, indicating it relates to other heavy and civil engineering construction activities, specifically targeting the removal and installation of a fully functional wastewater lift system. The solicitation was posted on July 31, 2026, and is currently listed as a forecast, meaning it is an early indication of procurement intent without an open bid at this time. The work will require complete replacement of the existing infrastructure to ensure continued operational reliability and compliance with safety and environmental standards. Primary contact for inquiries is Angela Peterson, reachable via phone or email, with Crystal Cuellar serving as the project manager overseeing execution. The place of performance is confirmed as Terminal 18, though specific address details are not provided in the data.

Waterfront Project Management

POSTED

about 8 hours ago

DEADLINE

Həʔapus Park Redevelopment - ConstructionThe Həʔapus Park Redevelopment project, managed by the Port of Seattle under Waterfront Project Management, will deliver a comprehensive upgrade to park infrastructure including new restrooms, enhanced pathways and lighting, a boot washing station, dog-friendly amenities, wayfinding and interpretive signage, and a hand-carrying boat launch. Work will be carefully phased to comply with environmental permitting requirements, particularly for in-water construction activities, and will be timed to avoid disruption to tribal fisheries. The project is targeted for substantial completion by the second quarter of 2028. Primary contact for inquiries is Angela Peterson, with Julie Yun serving as Project Manager, and further details can be accessed through the Port’s official solicitation portal.

Waterfront Project Management

POSTED

about 8 hours ago

DEADLINE

45th Ave SW Culvert Replacement and Habitat Restoration

Solicitation # 45th-ave-sw-culvert-replacement-habitat-restoration

The City of Seattle is soliciting bids for the replacement of a culvert along 45th Avenue SW and the associated restoration of surrounding habitat in King County, Washington. The project involves removing the existing infrastructure and installing a new culvert system to improve drainage, structural integrity, and environmental flow, while also implementing ecological restoration measures to enhance native vegetation and aquatic habitat. The solicitation is designated to encourage participation from Minority Business Enterprises certified by the NMSDC and Woman Business Enterprises certified by WBENC, supporting diversity in contracting opportunities. The North American Industry Classification System code for the project is 237990, indicating it falls under other heavy and civil engineering construction. The contract opportunity is managed by Shimmick Construction Company, Inc., which serves as both the agency and contracting entity, with Jamie Miranda listed as the primary point of contact for inquiries. All bids must be submitted by August 12, 2026, with the solicitation posted on August 5, 2026. The work will be performed on-site at 45th Avenue SW in Seattle, and interested parties are directed to the provided web link for additional details.

Shimmick Construction Company, Inc

POSTED

about 9 hours ago

DEADLINE

Quarterly grease trap cleanings in MO

Solicitation # quarterly-grease-trap-cleanings-mo

This subcontracting opportunity is for quarterly grease trap cleanings at the Excelsior Springs Job Corps Center in Missouri, with services scheduled for October, January, April, and July between October 1, 2026, and September 31, 2027. The work involves cleaning two grease traps located in the cafeteria and culinary arts building, including removal of fats, oils, and grease, scraping hardened buildup, washing internal components, testing water flow, replacing damaged baffles, ensuring proper rubber gasket seals, and safely disposing of waste materials. All work must comply with applicable local, state, and federal codes including OSHA regulations, the National Electrical Code, and NFPA Standard No. 101. Bidders must be registered in Sam.gov with a Unique Entity ID, possess valid Missouri-specific licensing and credentials, and provide all required documentation including a completed Bid Sheet with fee-for-service pricing, a detailed cost breakdown, vendor acknowledgment form, Form W-9, applicable FFATA notice, anti-lobbying certification, certificates of insurance, and a proposed service schedule. The solicitation is restricted to small business set-asides including SDB, WOSB, HUBZone SB, VOSB, and SDVOSB, and responses must adhere to FAR clauses covering debarment certification, the Service Contract Act, minimum wage requirements under EO 14026, and anti-lobbying provisions. Payment will be made within 30 days of invoicing, with bids due by noon CST on August 21, 2026, and must be submitted to ETR’s procurement office via hard copy with proper labeling. The contract type is fee-for-service, with all pricing required to include labor, materials, transportation, and supervision, and no additional charges will be paid unless explicitly included and accepted in the bid. Bonding requirements apply based on contract value: 100% payment bond for projects between $35,000 and $150,000, and both 100% performance and payment bonds for amounts exceeding $150,000. Contractors and personnel must follow center security rules, refrain from fraternizing with students or staff, and comply with the center’s tobacco-free and drug-free policy. Final acceptance requires submission of warranties, guarantees, and a signed punch list, with ETR serving as the sole judge in awarding the contract based on best overall value—not merely the lowest price.

ETR/Excelsior Springs Job Corps

POSTED

about 9 hours ago

DEADLINE

RFQ5911 Dorm Floor Stripping & Waxing

Solicitation # RFQ5911

This solicitation, numbered RFQ5911 Dorm Floor Stripping & Waxing, is a subcontracting opportunity issued by Management & Training Corporation (MTC) for janitorial services at the San Diego Job Corps Center located at 1325 Iris Ave, Imperial Beach, CA 91932. The work involves stripping and refinishing resilient vinyl composite tile (VCT) flooring across nine hallway corridors in four buildings—178, 179, 191, and 192—covering approximately 6,680 square feet. The scope requires complete removal of all existing floor finish buildup and contamination using commercial stripping solutions applied with low-speed rotary machines or autoscrubbers, followed by extraction of spent solution via wet vacuum. The refinishing process mandates application of a minimum of three coats of commercial-grade, high-solids floor finish with certified cure times between coats, ensuring a uniform, high-gloss surface free of lap marks, streaks, or bare spots. Work must be performed building-by-building or hallway-by-hallway to minimize disruption. The solicitation is set aside exclusively for small business categories including Small Business, Small Disadvantaged Business, Women-Owned Small Business, HUBZone Small Business, Veteran-Owned Small Business, and Service-Disabled Veteran-Owned Small Business, with NAICS code 561720. Bidders must comply with FAR clauses including 52.222-41, which mandates adherence to Wage Determination WD# 2015-5635 (Rev 29) dated December 3, 2025, for prevailing wage rates, and 52.204-10, requiring reporting of executive compensation for contracts valued at $40,000 or more. Subcontractors exceeding $30,000 must disclose any federal debarment status under FAR 52.209-6 and certify they are not debarred or suspended. Proposers must self-certify their business size and category using the MTC Supplier Self-Certification Form, submit IRS Form W-9, and provide DUNS and UEI numbers. Insurance requirements include $500,000 employer’s liability under workers’ compensation, $1 million per occurrence and $3 million aggregate general liability, with MTC and the Government named as additional insured. The contract also mandates compliance with the Drug-Free Workplace Act, Anti

San Diego Job Corps Center

POSTED

about 9 hours ago

DEADLINE

Aerial Structures Rehab

Solicitation # aerial-structures-rehab

The contract solicitation titled Aerial Structures Rehab is issued by WMATA with the bid/contract number FRBIR266247/LAN and is focused on rehabilitation work for aerial structures located in Washington DC. The solicitation was posted on August 5, 2026, with a response deadline of August 19, 2026, and is designated as a small business set-aside under the SBA program, specifically reserved for Small Business and Small Disadvantaged Business concerns. The NAICS code 237990 indicates this is for other heavy and civil engineering construction, targeting specialized infrastructure repair. The contracting office is Posillico Civil, Inc., serving as both the organization and the agency name, with Robyn Alma listed as the primary point of contact, reachable via email and phone. The place of performance is clearly defined as the District of Columbia, though no specific street address is provided. Bidders must respond through the official SBA opportunity portal, with additional details available through the provided UI link.

Posillico Civil, Inc.

POSTED

about 9 hours ago

DEADLINE

RFQ5901 Grass Mowing Services

Solicitation # 5901

This is a subcontracting opportunity with Management & Training Corporation (MTC) for Grass Mowing Services at the San Diego Job Corps Center located at 1325 Iris Ave, Imperial Beach, CA 91932. The solicitation, identified as RFQ5901, is open exclusively to small business concerns including Small Business, Small Disadvantaged Business, Women-Owned Small Business, HUBZone Small Business, Veteran-Owned Small Business, and Service-Disabled Veteran-Owned Small Business as defined under SBA regulations and the NAICS code 561730. Respondents must submit a completed Bid Sheet with hourly rates for base and option years, along with the MTC Supplier Packet containing a W-9, Acceptance of MTC Terms and Conditions, and a Self-Certification form. A valid Certificate of Insurance is required demonstrating Worker’s Compensation with employer’s liability limits of at least $500,000, General Liability with minimums of $1,000,000 per occurrence and $3,000,000 aggregate, Comprehensive Business Automobile Liability with a $1,000,000 combined single limit, and Professional Liability insurance with the same coverage limits; all policies must name MTC and the Government as additional insured. The contractor must be licensed in California, maintain a Drug-Free Workplace as required by the 1988 Act, comply with the Anti-Kickback Act of 1986, and adhere to all applicable OSHA, federal, state, and local safety regulations. Performance is required under a base period from August 24, 2026, to January 31, 2027, with two optional one-year extensions through January 31, 2029. Services include bi-weekly mowing of designated grassy areas such as the cafeteria, baseball field, and building entrances, along with trimming, edging, and immediate removal of clippings from paved surfaces; hedge maintenance in the interior courtyard; weed abatement using approved herbicides like glyphosate; irrigation system inspection and repair; seasonal fall cleanup; and complete debris removal off-site. All work must be performed in a professional and workmanlike manner, and contractors are subject to Federal Acquisition Regulation clauses including 52.222-41 (Service Contract Labor Standards) with Wage Determination WD# 2015-5635 (MOD 2

San Diego Job Corps Center

POSTED

about 9 hours ago

DEADLINE

City of Williams – Wastewater Collection System Improvement Project (Job No. 2290.16)

Solicitation # 2290.16

The City of Williams is seeking qualified contractors for the Wastewater Collection System Improvement Project, identified as Job No. 2290.16, with an estimated contract value of $4.1 million. The scope of work includes replacing up to 10,500 linear feet of 8-inch to 24-inch collection pipeline, replacing laterals and installing new two-way cleanouts within the right-of-way, replacing manholes, and lining approximately 320 linear feet of a 15-inch collection pipeline. The project requires the supply of materials such as aggregate and asphalt, precast concrete manholes, ready-mix concrete, waterworks pipe and fittings, and the provision of services including sawcutting, shoring rental, SWPPP services, striping, traffic control, and trucking. All subcontractors must comply with applicable state, county, and federal regulations as detailed in the project specifications. The solicitation is restricted to small businesses and emphasizes participation by certified DBE and SBE firms, encouraging second-tier subcontracting and procurement from certified small disadvantaged, women-owned, HUBZone, veteran-owned, and service-disabled veteran-owned small businesses. Bid submissions are due by August 8, 2026, at 2:00 PM, with plans and specifications available through an online portal or by email to Ranger Pipelines, Inc., the contracting entity. Bonding, insurance, and line of credit requirements will be provided directly by Ranger Pipelines, Inc., and the place of performance is located in California. The solicitation is issued as a Request for Quotes with no specified contract type or line-item pricing, leaving pricing and detailed terms to be determined by respondent proposals.

Ranger Pipelines Incorporated

POSTED

about 9 hours ago

DEADLINE