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CS ONE CO., LTD. 4-45-1, Sumiyoshi-cho, Naka-ku, Yokohama 231-0013 Japan

UEI: SLED_A12B0501FED087CA

CS ONE CO., LTD. 4-45-1, Sumiyoshi-cho, Naka-ku, Yokohama 231-0013 Japan is a federal contractor, registered under UEI SLED_A12B0501FED087CA. It has been awarded $70,000 across 2 federal contracts. Primary work spans Water and Sewer Line and Related Structures Construction and Plumbing, Heating, and Air-Conditioning Contractors. Top awarding agencies include FA5209 374 Cons Pk.

Contact Information

Registration and classification details

Registration

UEI Code

SLED_A12B0501FED087CA

Federal Contracting Overview

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

Key Performance Metrics

Awards Count

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Past period of performance

Total Awards

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Contracts

Prime · all time

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Sub · all time

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Prime · all time

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Award Analytics & Distribution

Awards by Agency

FA5209 374 Cons Pk$70.0K100%

Awards by NAICS

237110 - Water and Sewer Line and Related Structures Construction$55.2K78.9%

238220 - Plumbing, Heating, and Air-Conditioning Contractors$14.8K21.1%

Awards by Agency Over Time

Awards by Place of Performance

Open opportunities in CS ONE CO., LTD. 4-45-1, Sumiyoshi-cho, Naka-ku, Yokohama 231-0013 Japan's top NAICS codes and agencies

Infrastructure - Invitation to Bid - Spence Steam regulator replacement

Solicitation # AB-2026-05515

Alberta Infrastructure is seeking bids for the supply and installation of two new Spence steam regulators through solicitation AB-2026-05515, managed by BGIS. The project involves replacing existing steam regulators at a location in Alberta, with all work to be performed on-site. The solicitation was posted on August 5, 2026, and responses are due by August 26, 2026, at 8:00 PM Mountain Time. Kelly Wambold, Operations Manager at BGIS, is the primary point of contact for inquiries, reachable via email at kelly.wambold@bgis.com. The contract requires qualified vendors to provide compliant equipment and skilled installation services meeting provincial infrastructure standards. Bidders must ensure all technical, safety, and scheduling requirements are met to successfully execute the replacement in a timely and regulatory-compliant manner.

POSTED

about 6 hours ago

DEADLINE

Northern Alberta Institute of Technology (NAIT) - Invitation to Bid - D. Building Domestic Hot Water Heater Replacement

Solicitation # AB-2026-05513

The Northern Alberta Institute of Technology is seeking bids for the replacement of domestic hot water heaters in its D Building, under solicitation number AB-2026-05513, with bids due by August 18, 2026. The project requires a qualified mechanical contractor to remove existing equipment and install new domestic hot water heating systems, ensuring compliance with all relevant codes and operational standards. Work must be conducted with minimal disruption to campus activities, and the contractor is expected to manage all logistics, permitting, and site cleanup. The contract is open to all qualified bidders without set-aside restrictions, and all submissions must be received by the deadline. Primary point of contact for inquiries is Marek Holpit, Senior Supply Chain Strategic Consultant, reachable via email at marekh@nait.ca or phone at 780-378-2887. The project is located at NAIT’s campus in Alberta, and detailed technical specifications and bid requirements can be accessed through the official solicitation portal. Bidders are advised to review all documentation thoroughly to ensure full compliance with the scope of work and submission guidelines.

Northern Alberta Institute of Technology

POSTED

about 6 hours ago

DEADLINE

Plumbing and Piping Systems Installation

CONSTRUCTION & EQUIPMENT MRO SVC I

POSTED

about 8 hours ago

DEADLINE

Plumbing and Piping Systems Installation

ASC COMMODITIES DIVISION

POSTED

about 8 hours ago

DEADLINE

Plumbing and Piping SystemsThe contract is for the installation of potable water, sanitary sewer, and storm drainage systems within buildings or facilities under a subcontract arrangement set aside entirely for small businesses as defined by the SBA. It falls under NAICS code 238220 for plumbing, heating, and air-conditioning contractors and is managed by the Nuclear Reactor Program within the Department of Defense. The opportunity was posted on August 5, 2026, with responses due by August 14, 2026, and performance is required at a location in San Diego, California with a zip code of 92136-3581. All work must comply with applicable standards for municipal infrastructure systems and is intended to support critical defense facilities. The solicitation is accessible through the DIBBS platform for eligible small business contractors.

NUCLEAR REACTOR PROGRAM

POSTED

about 8 hours ago

DEADLINE

Plumbing and Piping SystemsThe contract pertains to the installation of potable water, drainage, and gas piping systems within commercial or industrial facilities, under a subcontract classification with NAICS code 238220 for plumbing, heating, and air-conditioning contractors. The work is scoped for performance at Cherry Point, North Carolina, with a zip code of 28533-0021, and is managed by the Defense Logistics Agency under the Department of Defense. The solicitation was posted on August 5, 2026, with a firm response deadline of August 13, 2026, leaving a limited window for potential subcontractors to submit proposals. All systems must meet stringent operational and safety standards appropriate for defense-related infrastructure, and the successful bidder will be responsible for full compliance with applicable codes and regulations governing utility installation in federal facilities.

Defense Logistics Agency

POSTED

about 8 hours ago

DEADLINE

Plumbing and Piping SystemsThe contract involves the installation of plumbing, water supply, drainage, and HVAC piping systems under a subcontract for the Department of Defense, with the work to be performed in Tracy, California, at the ZIP code 95304-5000. The solicitation, identified by the NAICS code 238220 for plumbing, heating, and air-conditioning contractors, was posted on August 5, 2026, and responses are due by August 17, 2026. The contracting agency is listed as CONSTRUCTION & EQUIPMENT MANU & CON, indicating the project supports defense infrastructure needs. There is no specified set-aside type, and no point of contact is provided in the data, but the official solicitation details can be accessed through the provided DIBBS link. All work must comply with applicable technical and performance standards for military facility construction.

CONSTRUCTION & EQUIPMENT MANU & CON

POSTED

about 8 hours ago

DEADLINE

Plumbing and Piping Systems InstallationThe contract titled Plumbing and Piping Systems Installation seeks qualified subcontractors to install comprehensive plumbing systems encompassing water supply, drainage, and gas piping across various buildings and facilities under the jurisdiction of the Department of Defense through its Land Supply Chain office. The work falls under NAICS code 238220 and is classified as a subcontract opportunity with no specific set-aside provisions, indicating open competition among eligible contractors. The solicitation was posted on August 5, 2026, and responses are due by August 25, 2026, providing potential bidders a 20-day window to prepare and submit their proposals. The place of performance is not specified, suggesting work may occur at multiple DoD locations, and no point of contact is listed, requiring interested parties to refer to the provided DIBBS link for additional details and submission requirements.

LAND SUPPLY CHAIN

POSTED

about 8 hours ago

DEADLINE

HVAC System Installation

CONSTRUCTION & EQUIPMENT CONTAINERS

POSTED

about 8 hours ago

DEADLINE

Plumbing and Piping Systems Installation

CONSTRUCTION & EQUIPMENT CONTAINERS

POSTED

about 8 hours ago

DEADLINE

T18 Water Main Replacement - ConstructionThe contract entails the replacement of approximately 20,000 feet of water main infrastructure within the east 100 acres of Terminal 18, including related fittings, valves, hydrants, and associated water service lines. This project is scoped to modernize and upgrade the existing water distribution system to ensure reliability, improve operational efficiency, and meet current safety and regulatory standards for port infrastructure. The work will require coordinated construction activities across a densely used terminal area, demanding careful planning to minimize disruption to ongoing port operations. The contract is forecasted by the Northwest Seaport Alliance, operating under the Port of Seattle, with a NAICS code of 237110 indicating it falls under water and sewer line and related structures construction. Primary contact for inquiries is Angela Peterson, with Greg Stamatiou serving as the Project Manager. The solicitation was posted on July 31, 2026, and all relevant details and submission requirements can be accessed through the provided portal link. While no set-aside provisions are indicated, interested parties should prepare to meet the technical and logistical demands of performing utility replacement in an active maritime environment.

Northwest Seaport Alliance (NWSA)

POSTED

about 8 hours ago

DEADLINE

Emerson St. Sinkhole RepairThe contract involves repairing a sinkhole caused by a disconnected segment of stormwater drain line that previously fed into the main King County sewer line beneath Emerson Street. The work includes excavation, removal of the damaged section, installation of a new stormwater pipe, and creating a secure connection to the main line. The project also requires backfilling and repaving the roadway with asphalt to restore surface integrity. Significant traffic control measures are necessary due to the location on a busy thoroughfare, where multiple lanes will be affected during construction. The project is managed by the Port of Seattle through its Waterfront Project Management division, with primary contact information provided for Marilynn Montenegro and Project Manager Brandon Klett. The work is classified under NAICS code 237110, indicating it falls under sewer and stormwater infrastructure construction, and was posted as a forecast on July 31, 2026.

Waterfront Project Management

POSTED

about 8 hours ago

DEADLINE

1947 Watermain - North Bound Airport Expressway PreservationThe Port of Seattle’s Aviation Project Management Group is forecasting the restoration of a 1947 water main located along the northbound Airport Expressway using cured-in-place pipe (CIPP) technology under a Design-Bid-Build procurement model. The project aims to preserve the integrity of the aging infrastructure without excavation, leveraging modern rehabilitation methods to extend service life and enhance system reliability. The work will involve lining the existing pipeline with a resin-saturated fabric liner that is inverted and cured in place, minimizing disruption to adjacent roadways and surrounding facilities. The contract falls under NAICS code 237110, indicating it is classified as Water and Sewer Line and Related Structures Construction. Moraa Omwega serves as the primary point of contact for inquiries, with Ray Moreno designated as Project Manager. The solicitation was posted on July 31, 2026, and while no set-aside designation or bid deadline has been specified, interested parties are directed to the official Port of Seattle portal for updates and detailed technical requirements. The place of performance is tied to the Airport Expressway, although exact geographic coordinates are not provided, and all work must be coordinated with ongoing airport operations to ensure safety and minimize impact to airfield access and logistics.

Aviation Project Management Group

POSTED

about 8 hours ago

DEADLINE

ESJC – FIRE EXTINGUISHER SERVICES

Solicitation # esjc-fire-extinguisher-services

This solicitation seeks qualified subcontractors to provide quarterly fire extinguisher inspection and replacement services at the Excelsior Springs Job Corps Center in Missouri, encompassing a total of 175 extinguishers across 21 campus buildings and 23 center-owned vehicles. The work requires detailed inspections four times annually, with the contractor responsible for replacing any used, partially used, or uncharged extinguishers with fully charged units, and providing inspection tags for each device. All services must comply with NFPA 101 Life Safety Code, the National Electrical Code, and applicable OSHA regulations, while adhering to all local, state, and federal construction codes. The contract term runs from October 1, 2026, through September 30, 2027, with performance subject to final acceptance by the center, requiring submission of signed punch lists, warranties, and guarantees before payment. Bidders must submit a completed Fee-For-Service Bid Sheet with a detailed cost breakdown, proof of Missouri-specific licensing, vendor paperwork including Form W-9, Vendor Acknowledgement Form, FFATA Notice, and Anti-Lobbying Certification, along with certificates of insurance covering automobile, liability, and workers compensation. Payment will be issued within 30 days of invoicing, and all deliverables are F.O.B. destination. The procurement is designated as a subcontracting opportunity under a Small Business set-aside that includes eligibility for Small Business, Small Disadvantaged Business, Women-Owned Small Business, HUBZone Small Business, Veteran-Owned Small Business, and Service-Disabled Veteran-Owned Small Business concerns. Compliance with federal labor standards is mandatory, including the Service Contract Act, minimum wage requirements under Executive Order 14026, and the Davis-Bacon Act, with additional requirements for debarment certification, anti-lobbying compliance, and active SAM.gov registration with a Unique Entity ID. Bidders must conduct a site visit, submit proposals in ink or typewritten format with no erasures, and ensure all documents are received by 12 p.m. CST on August 14, 2026. The award will be based on best overall value, not lowest price, with the contracting officer serving as the sole judge of technical merit, compliance, and responsiveness. Contractors and personnel are strictly prohibited from fraternizing with students or staff and from bringing alcohol, tobacco products, drugs, or firearms onto the center premises.

ETR/Excelsior Springs Job Corps

POSTED

about 8 hours ago

DEADLINE

Bernina and Cedar Glen WTP PFAS Design

Solicitation # bernina-cedar-glen-wtp-pfas-design

The contract pertains to the design of treatment systems to address PFAS contamination at the Bernina and Cedar Glen Water Treatment Plants in Lake Arrowhead, California, managed by the Lake Arrowhead Community Services District. Work under this solicitation involves engineering and technical design services aimed at mitigating per- and polyfluoroalkyl substances in the water supply, with a required response deadline of September 3, 2026. The project is classified under NAICS code 237110 for water and wastewater plant construction and is open to certified Disadvantaged Business Enterprises, Minority Business Enterprises with NMSDC certification, and Woman Business Enterprises holding WBENC certification, reflecting a commitment to diverse contracting participation. Olsson Construction Inc is the listed agency responsible for managing the solicitation, with Maggie Stewart serving as the primary point of contact for inquiries and submissions. The location of performance is firmly situated in San Bernardino County, California, and all proposals must align with specific technical, regulatory, and diversity requirements set forth by the district and applicable state protocols for water infrastructure improvements.

Olsson Construction Inc

POSTED

about 8 hours ago

DEADLINE

Hagerstown Wastewater Treatment Plant Improvements - Phase 1

Solicitation # hagerstown-wastewater-treatment-plant-improvements-phase-1

The Hagerstown Wastewater Treatment Plant Improvements – Phase 1 project is focused on upgrading aging infrastructure to ensure compliance with nitrogen and phosphorous limits and other permit requirements, while maintaining the current treatment capacity without addressing future growth. Key improvements include replacement of influent screens and washer compactors, installation of a headworks enclosure to meet NPDES thermal requirements, replacement of multiple pumps including RAS and WAS pumps, modification of primary sludge discharge piping, installation of a new ferric chloride/alum chemical storage tank in a dedicated building, replacement of Motor Control Centers, PLCs, and Switchgear for enhanced reliability, addition of a nitrate probe to BNR basins, repair of cracked and spalled concrete at headworks, and miscellaneous building upgrades including HVAC, roofing, stairways, doors, and windows. All detailed specifications are contained in the plans, specifications, and addenda available on The Belt Group’s website. The project is wage rated and requires adherence to labor standards, with all work to be performed at the Hagerstown Wastewater Treatment Plant in Maryland. The solicitation is set aside for small business concerns, including Small Disadvantaged Businesses, Women-Owned Small Businesses, HUBZone small businesses, Veteran-Owned Small Businesses, and Service-Disabled Veteran-Owned Small Businesses. Carl Belt, Inc. actively encourages participation from MBEs, DBEs, and WBEs as subcontractors in electrical, mechanical, masonry, painting, glass/glazing, flooring, and laboratory casework, as well as suppliers of wastewater pumps, sluice gates, precast panels, FRP materials, stone, concrete, and miscellaneous metals. Proposals must be submitted via the Projects to Bid Login portal on www.thebeltgroup.com using the credentials CB26088 and HagerstownPH1, with a hard copy submission due by 4:00 PM on August 17, 2026, to P.O. Box 1210, Cumberland, MD 21502. Primary point of contact for inquiries is Jared Burkett, reachable by phone at (301) 729-8900 or fax at (301) 729-0163. The agency emphasizes equal opportunity employment and supports consortium arrangements for bidders seeking to collaborate on larger project components.

Carl Belt, Inc.

POSTED

about 8 hours ago

DEADLINE

IE JCC HVAC Replacements

Solicitation # ie-jcc-hvac-replacements

This contract is a fixed-price, lump-sum subcontracting opportunity issued by Management & Training Corporation (MTC) on behalf of the U.S. Department of Labor for HVAC replacements at the Inland Empire Job Corps Center in San Bernardino, California. The scope includes furnishing and installing three new packaged HVAC units with gas heating, removing and disposing of existing units in compliance with EPA refrigerant recovery regulations, reconnecting and modifying gas piping and ductwork, installing new electrical disconnects and programmable thermostats, and performing comprehensive startup, testing, and commissioning that verifies critical safety functions such as the automatic closure of fresh air intake dampers during fire activation. All work must adhere to Title 24, the 2024 International Mechanical Code, the 2024 International Energy Conservation Code, and ASHRAE 90.1-2022 standards. Deliverables include manufacturer and workmanship warranties, operation and maintenance manuals, test records, disposal documentation, and completion of at least two hours of on-site training for facility personnel. The contract requires a 100-day consecutive business day performance period following receipt of a Notice to Proceed, with an onsite pre-construction meeting mandatory prior to work commencement. The solicitation is set aside exclusively for small business concerns under multiple SBA categories including Small Business, Small Disadvantaged Business, Women-Owned Small Business, HUBZone, Veteran-Owned Small Business, and Service-Disabled Veteran-Owned Small Business. Bidders must hold a valid UEI number, provide Tax ID and DUNS number, and formally represent their business classification per NAICS code 238220. All contractors and first-tier subcontractors exceeding $30,000 must disclose debarment status, and all offerors must certify they are not suspended or debarred by any federal agency. Bid requirements include a detailed cost breakdown covering materials, labor with apprenticeship documentation, equipment, permits, bonds, overhead, and profit; a signed MTC bid form; supplier packet with W-9 and terms acceptance; and mandatory site visit verification. For bids $25,000 or more, a 20% bid bond and subsequent performance and payment bonds at 100% of contract value are required, with sureties holding at least an A rating. Insurance mandates include $1 million per occurrence general liability with MTC/DOL as additional insured, $1 million auto, and $500,000 workers’ compensation. Weekly

MTC Inland Empire Job Corps

POSTED

about 8 hours ago

DEADLINE

Cypress Lake WTP, Wellfield, & Raw Water Main in Osceola County, FL

Solicitation # cypress-lake-wtp-wellfield-raw-water-main-osceola-county-fl

The contract pertains to the construction of the Cypress Lake Water Treatment Plant, Wellfield, and Raw Water Main in Osceola County, Florida, initiated by Wharton-Smith, Inc. as the general contractor on behalf of the Central Florida Water Cooperative. The scope encompasses a comprehensive water infrastructure project including the development of raw water production wells with associated well heads and pumps, discharge piping, surge bladder tank, site civil work, wellhead cages, an electrical building with a standby generator, and the required production well disinfection for regulatory certification. Additional critical facilities include Operations and Reverse Osmosis Buildings, Pretreatment and Post-Treatment Chemical Buildings, a Post-Treatment Degasification System, and an Odor Control Air Exhaust Dispersion Stack System. Primary and secondary water quality analytical laboratory testing is mandated as part of the requirements to ensure compliance and certification. The project is estimated at $270 million, and the procurement is structured as a solicitation targeting State of Florida Certified Disadvantaged Business Enterprise (DBE) subcontractors and suppliers, aligning with Department of Transportation set-aside directives. All bidding materials, including plans, specifications, and addenda, are available for free download through ConstructConnect. Proposals must be submitted via email to watergmpbids@whartonsmith.com with a strict timeline: proposed scopes of work must be submitted at least 24 hours prior to the bid deadline, and firm pricing must be received by 10:00 a.m. EST on August 19, 2026, with the final deadline for all submissions at 2:00 p.m. EST. The point of contact for the solicitation is Nichole Voitel, who can be reached at (407) 321-8410 Ext. 3622. The contract does not specify payment terms, bonding requirements, quality control procedures, or detailed evaluation criteria beyond a willingness to review responsible quotes and negotiate terms. The place of performance is clearly defined as Florida, and while key administrative and financial details such as contract type, period of performance, invoicing methods, and contracting officer information are omitted, the requirement for DBE participation remains a central and non-negotiable condition for eligibility.

Wharton-Smith, Inc.

POSTED

about 8 hours ago

DEADLINE