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J KOKOLAKIS CONTRACTING INC

J KOKOLAKIS CONTRACTING INC is a federal contractor, registered under UEI NWMLSEK4HXN3 and CAGE code 0JNU4. It has been awarded $1,364,833,700 in federal contracts. Primary work spans Commercial and Institutional Building Construction, Other Heavy and Civil Engineering Construction, and Electrical Contractors and Other Wiring Installation Contractors. Top awarding agencies include Department Of Defense, Department Of Veterans Affairs, and Department Of Transportation.

Contact Information

Registration and classification details

Registration

UEI Code

NWMLSEK4HXN3

CAGE Code

0JNU4

Entity Structure

Corporate Entity (Not Tax Exempt)

Established

N/A

Business Classifications

For Profit OrganizationSubchapter S Corporation

NAICS Codes

236210Industrial Building Construction
236220Commercial and Institutional Building Construction(Primary)
237130Power and Communication Line and Related Structures Construction
237990Other Heavy and Civil Engineering Construction
238210Electrical Contractors and Other Wiring Installation Contractors

Federal Contracting Overview

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

AI Capability Profile

J. Kokolakis Contracting Inc. specializes in the construction, renovation, and infrastructure modernization of commercial and institutional facilities, with a strong focus on U.S. Department of Defense installations. Their core capabilities include the design and execution of complex building upgrad...

J. Kokolakis Contracting Inc. specializes in the construction, renovation, and infrastructure modernization of commercial and institutional facilities, with a strong focus on U.S. Department of Defense installations. Their core capabilities include the design and execution of complex building upgrades—such as paint booth and drying oven replacements, reception complex construction, and historic building renovations like Cullum Hall—demonstrating proficiency in mission-critical facility modernization under stringent military standards. They possess technical expertise in integrating industrial process equipment into existing infrastructure, as evidenced by their work on heat treat furnace replacements, indicating an ability to coordinate mechanical, electrical, and structural systems within sensitive operational environments. Their unique differentiator lies in delivering precision construction and equipment integration services within active defense installations, requiring strict adherence to safety, security, and operational continuity protocols. The contractor maintains a consistent relationship with the Department of Defense, delivering facility construction and infrastructure upgrades across multiple Army and defense installations, including WaterVliet Arsenal and other secure military bases. Their work supports base modernization, force readiness, and facility sustainment initiatives, reflecting a deep understanding of DoD construction requirements and compliance frameworks. Their primary industry focus is Commercial and Institutional Building Construction (NAICS 236220), where they execute projects ranging from new construction to high-value renovations of government-owned facilities. They also demonstrate niche capability in Industrial Process Furnace and Oven Manufacturing (NAICS 333994), positioning them as a hybrid contractor capable of both civil construction and specialized industrial equipment integration. J. Kokolakis Contracting Inc. is a small business structured as a 2L entity, headquartered in Tarpon Springs, Florida. While they hold no formal government certifications, their consistent performance on defense projects underscores their reliability in the federal construction market, particularly in mission-critical, high-security environments.

Key Performance Metrics

Awards Count

35

All time

Active

1

Currently performing

Completed

34

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 Agency Over Time
Awards by Place of Performance

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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

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about 2 hours ago

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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

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in 14 days
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NAICS: 238210
New
Transformer Oil Testing Services
Solicitation # RFP-VC-26-010
The Inland Empire Utilities Agency is soliciting proposals under RFP-VC-26-010 for professional transformer oil testing services to enhance the reliability, safety, and maintainability of its transformers. The scope of work is divided into three primary areas: conducting visual and infrared thermographic inspections to identify thermal anomalies, installing standardized external oil sampling devices to improve safety during collection, and performing detailed oil testing and analysis. Additionally, the selected contractor must provide on-site training for up to 20 agency staff members and develop comprehensive standard operating procedures. All work must adhere to NETA MTS standards, IEEE guidelines, NFPA 70E safety protocols, and ASTM D923 and D924 sampling requirements, with infrared inspections performed by ASNT Level 1 certified technicians or equivalent. The agency intends to make a single award to the most capable offeror based on their project experience with utilities or industrial facilities, proposed staffing and methodology, personnel availability, and cost-effectiveness. Proposals must be submitted electronically via PlanetBids by December 23, 2026, at 3:00 pm. Required documentation includes a detailed project approach, a company profile, three references from the last five years, and various certifications including a Non-Collusion Statement and Workers Compensation Certificate. The contract will utilize fixed pricing with a not-to-exceed total value and requires the contractor to be registered with the Department of Industrial Relations as a public works contractor. Payment will be processed electronically via ACH within 30 days of invoice approval.
Inland Empire Utilities Agency

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about 2 hours ago

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in 2 months
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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 primary project involves a 12,920 square foot multi-story steel frame laboratory and office facility featuring a shallow foundation, metal standing seam roof, and masonry and metal panel exterior walls. This scope encompasses comprehensive site preparations, including landscaping, parking, exterior lighting, telecommunications, and the installation of underground stormwater retention and utility systems. An additional option for the P1016 facility includes a 17,978 square foot laboratory with similar structural specifications and the demolition of an existing 548 square meter engineering facility. The solicitation is open to various small business designations, including SDB, WOSB, HUBZone, and VOSB. Bidders must adhere to Davis Bacon Wage Rates, and the project is exempt from sales tax. Pricing is requested across a wide array of trades, including demolition, abatement, structural steel, mechanical, electrical, plumbing, and fire protection, among others. Interested parties must contact the primary point of contact to receive the formal bid invitation and documents via Building Connected before the response deadline of November 30, 2026.
J&J CONTRACTORS, INC.

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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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