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JANGHAK E&C

UEI: GHQUKB4U9S36CAGE: 1W37F

JANGHAK E&C is a federal contractor, registered under UEI GHQUKB4U9S36 and CAGE code 1W37F. It has been awarded $65,454,040 in federal contracts. Primary work spans Commercial and Institutional Building Construction, Unknown NAICS, and Other Heavy and Civil Engineering Construction. Top awarding agencies include Department Of Defense.

Contact Information

Registration and classification details

Registration

UEI Code

GHQUKB4U9S36

CAGE Code

1W37F

Entity Structure

Corporate Entity (Not Tax Exempt)

Established

N/A

Business Classifications

For Profit Organization

NAICS Codes

212321Construction Sand and Gravel Mining
236115New Single-Family Housing Construction (except For-Sale Builders)
236116New Multifamily Housing Construction (except For-Sale Builders)
236117New Housing For-Sale Builders
236118Residential Remodelers
+12 more

Federal Contracting Overview

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

AI Capability Profile

JANGHAK E&C specializes in the construction, repair, and maintenance of commercial and institutional facilities, with a demonstrated focus on mission-critical infrastructure for defense installations. Their technical expertise includes concrete stairway construction, epoxy mortar floor coatings, roo...

JANGHAK E&C specializes in the construction, repair, and maintenance of commercial and institutional facilities, with a demonstrated focus on mission-critical infrastructure for defense installations. Their technical expertise includes concrete stairway construction, epoxy mortar floor coatings, roof leak remediation, road surface repairs, and comprehensive facility upgrades—tasks requiring precision in material application, structural integrity assessment, and compliance with military construction standards. The contractor’s work on U.S. Forces Korea (USFK) facilities indicates deep familiarity with DoD-specific building codes, environmental constraints, and operational continuity requirements during active-duty site renovations. Their ability to execute high-priority, small-scale repairs alongside larger-scale upgrades suggests strong project sequencing and field logistics capabilities tailored to constrained, high-security environments. The contractor maintains a consistent relationship with the Department of Defense, delivering facility maintenance and minor construction services across multiple U.S. military bases, particularly in the Republic of Korea. Their portfolio reflects recurring engagement with USFK infrastructure, indicating a trusted, long-term partnership built on reliability in executing time-sensitive, low-disruption work within operational zones. JANGHAK E&C’s primary industry focus is Commercial and Institutional Building Construction (NAICS 236220), encompassing both new builds and rehabilitative work on government-owned structures such as barracks, libraries, administrative buildings, and access roads. Their market positioning centers on niche, high-reliability maintenance contracting within defense-related institutional environments, distinguishing them through rapid response to facility degradation and adherence to military facility lifecycle standards. As a South Korea-based entity with no publicly listed government certifications, JANGHAK E&C operates as a locally embedded contractor serving U.S. defense infrastructure needs in the Asia-Pacific region. Their geographic presence and operational model suggest a strategic alignment with U.S. military garrison support requirements, leveraging regional expertise to deliver compliant, durable construction outcomes in austere or active-duty settings.

Key Performance Metrics

Awards Count

219

All time

Active

1

Currently performing

Completed

218

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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Award history, agency mix, and NAICS coverage for JANGHAK E&C

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Open opportunities in JANGHAK E&C's top NAICS codes and agencies

NAICS: 237990
New
SLED
Three Lakes G111 Replacement
Solicitation # FWC 26/27-10C
The Florida Fish and Wildlife Conservation Commission is soliciting competitive lump-sum pricing for the Three Lakes G111 Replacement project in Osceola County, Florida. The scope of work involves replacing an existing five-barrel CMP culvert structure and control gates with a new cast-in-place five-barrel reinforced concrete box culvert structure. Key deliverables include the installation of reinforced concrete headwalls and rip-rap blankets both upstream and downstream, as well as the implementation of a temporary steel sheetpile cofferdam and dewatering system to facilitate construction in dry conditions. The estimated budget for this project is 3.5 million dollars. Bidders must be registered in the MyFloridaMarketPlace and SunBiz systems and submit sealed bids by October 13, 2026, at 4:00 PM ET. Requirements for the award include a bid bond of at least five percent for bids exceeding 100,000 dollars, and the successful contractor must provide 100 percent performance and labor and material payment bonds. Additionally, contractors must hold a current State Contractor license, provide a Unique Entity Identifier, and ensure compliance with the Build America, Buy America provision and Chapter 255 of the Florida Statutes. Work is generally restricted to weekdays between 7:00 AM and 7:00 PM, and final completion is defined as 30 days after the issuance of a Certificate of Substantial Completion.
Florida Fish and Wildlife Conservation Commission

POSTED

about 2 hours ago

DEADLINE

in 3 days
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NAICS: 236220
New
Construction of the Recharge Master Plan Update Basin Improvements Project Montclair Basin Improvements
Solicitation # construction-recharge-master-plan-update-basin-improvements-project-montclair-basin-improvements-2
The Construction of the Recharge Master Plan Update Basin Improvements Project Montclair Basin Improvements is a solicitation issued by RT Contractor Corp for a project under the Inland Empire Utilities Agency in California. This opportunity is specifically set aside for Disadvantaged Business Enterprises (DBE) under the Department of Transportation, with a response deadline of November 4, 2026. The project falls under NAICS code 236220 and focuses on basin improvements within the Riverside or Los Angeles project areas. A critical component of this solicitation is strict adherence to six Good Faith Effort (GFE) requirements designed to ensure DBE participation and secure project financing. Bidders must provide proof of GFE #2, which requires posting solicitations in an online publication for 30 consecutive calendar days and in a print newspaper for one day, as well as proof of GFE #5, involving the utilization of the Small Business Administration (SBA) and the Minority Business Development Agency (MBDA). Failure to submit documentation for these two specific efforts within the bid package will result in the proposal being deemed non-responsive. Additionally, outreach documentation for GFE #1 may be submitted up to three business days after the bid closing date.
RT CONTRACTOR CORP

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about 2 hours ago

DEADLINE

in 14 days
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NAICS: 236220
New
P084 NEXT GENERATION TORPEDO INTEGRATION LAB & P1016 Consolidated RDT&E Systems Facility – Newport, RI
Solicitation # p084-next-generation-torpedo-integration-lab-p1016-consolidated-rdte-systems-facility-newport-ri
J&J Contractors, Inc. is soliciting bids for the construction of the Next Generation Torpedo Integration Lab and the P1016 Consolidated RDT&E Systems Facility in Newport, Rhode Island. The project involves the development of a 12,920 square foot multi-story steel frame laboratory and office facility, as well as an optional 17,978 square foot laboratory facility. Construction features include shallow foundations, metal standing seam roofs, and exterior walls composed of masonry and metal panels. The scope of work encompasses comprehensive site preparations, including landscaping, parking, exterior lighting, and the installation of underground stormwater retention and utility systems. Additionally, the project requires the demolition of Building 1272T, a 548 square meter engineering facility. Pricing is requested across a wide array of trades, including demolition, abatement, concrete, masonry, structural and miscellaneous metals, millwork, roofing, drywall, flooring, painting, elevator installation, fire protection, plumbing, mechanical, electrical, sitework, and crane services. This is a small business set-aside solicitation subject to Davis Bacon Wage Rates and is exempt from sales tax. Interested parties must contact the primary point of contact to receive bid invitations and documents via Building Connected. The response deadline for this solicitation is November 30, 2026.
J&J CONTRACTORS, INC.

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about 2 hours ago

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in about 1 month
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NAICS: 236220
New
CITY OF GREENFIELD WASTEWATER TREATMENT PLANT UPGRADE PROJECT
Solicitation # city-greenfield-wastewater-treatment-plant-upgrade-project
The City of Greenfield Wastewater Treatment Plant Upgrade Project involves the construction of a new 2.0 million gallons per day wastewater treatment plant located at 41901 Walnut Avenue in Greenfield, California. The project scope is divided into four distinct phases: site preparation involving soil stabilization and utility relocation; construction of the plant including a packaged Membrane Bioreactor treatment plant, headworks, UV disinfection, and SCADA systems; decommissioning and demolition of existing facilities; and the completion of finish facilities including the Walnut Avenue extension. The total duration for the project is 915 calendar days, and the contractor must maintain existing plant services and regulatory compliance throughout the first two phases. Managed by C. Overaa & Co., the solicitation encourages participation from small and disadvantaged businesses, including DBE, DVBE, MBE, WBE, and SBE certified firms. A significant local hiring goal requires that 50 percent of the total construction workforce be residents of Monterey, San Benito, or Santa Cruz counties. Subcontractors are required to use the Textura electronic invoicing system, provide a 100 percent performance and labor bond if requested, and adhere to arcflash compliance for electrical work. Bids are due by November 10, 2026, following a mandatory pre-bid meeting held on October 5, 2026.
C. Overaa & Co.

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about 2 hours ago

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in 20 days
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NAICS: 236220
New
P1102 Weapons Magazine and Ordnance Operations Facility, Naval Submarine Base New London, Groton, Connecticut
Solicitation # p1102-weapons-magazine-ordnance-operations-facility-naval-submarine-base-new-london-groton
This solicitation issued by J & J Contractors, Inc. seeks pricing for the P1102 Weapons Magazine and Ordnance Operations Facility project at the Naval Submarine Base New London in Groton, Connecticut. The project has a duration of 1828 calendar days and involves the construction of six Containerized Long Weapons Storage units, two Box G magazines, and one Box H earth-covered high-explosive magazine. The scope includes comprehensive site work such as clearing, rock excavation, grading, and wetland mitigation, as well as the construction of an Ordnance Operations building, a Truck Inspection area, and a Sentry building. Demolition of 18 existing magazines and buildings 524 and 393 is also required. Technical requirements encompass a wide range of trades including demolition, abatement, concrete, structural steel, roofing, electrical, plumbing, and mechanical systems. Specialized construction features include rigid inclusions, load transfer mats, grounding and lightning protection, and intrusion detection systems. The project also involves installing primary and secondary electrical distribution, telecommunications infrastructure, access roads, and landscaping. This opportunity is set aside for various small business categories, and interested parties must contact the primary point of contact by the October 31, 2026, deadline to receive bid documents.
J & J Contractors, Inc

POSTED

about 2 hours ago

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in 10 days
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NAICS: 236220
New
SLED
Colville Fuels, Coyote Ridge Golf Course, Secondary Emergency Exit from Clubhouse Basement
Solicitation # Request-for-Bid-Coyote-Ridge-Golf-Course-Secondary-Emergency-Exit-from-Clubhouse-Basement.pdf
Colville Fuels LLC is soliciting bids for the construction of a code-compliant secondary emergency exit from the clubhouse basement at Coyote Ridge Golf Course in Washington. The scope of work includes saw cutting reinforced concrete walls, installing a commercial-grade exterior door assembly with panic hardware, and excavating a permanent ADA-accessible egress path with required drainage, retaining walls, and handrails. The contractor must ensure all work is code-compliant, coordinate inspections with the Authority Having Jurisdiction, and restore all affected surfaces to match existing clubhouse architecture. This is a price-based invitation for bids where the award will be granted to the lowest responsive and qualified bidder, subject to budgetary limits and Indian preference requirements. Preference is tiered from 100% Colville Business Enterprises down to non-certified Indian-owned businesses, with allowable price differentials based on the total bid amount. Bidders must submit a firm fixed price bid, a performance schedule, a subcontracting plan, and evidence of financial stability, insurance, and licensing by November 20, 2026. The project is expected to be completed by March 31, 2026, though this date is weather-dependent. Final contract terms and payment conditions will be negotiated upon the selection of the successful bidder.
Confederated Tribes of the Colville Reservation

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in about 1 month
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