Psst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveCLEATUS Webinar: AI for Government Contracting — Free Webinar — Wednesday, August 19 at 2:00 PM EDT

Register Free →

Search

Top

Concentric Security LLC 7560 Main Street SYKESVILLE MD 21784 USA

UEI: SLED_3B3A6B1E1A8BD4B8

Concentric Security LLC 7560 Main Street SYKESVILLE MD 21784 USA is a federal contractor, registered under UEI SLED_3B3A6B1E1A8BD4B8. It has been awarded $355,016 across 1 federal contract. Primary work spans All Other Specialty Trade Contractors. Top awarding agencies include FA2860 316 Cons Pk.

Contact Information

Registration and classification details

Registration

UEI Code

SLED_3B3A6B1E1A8BD4B8

Federal Contracting Overview

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

Key Performance Metrics

Awards Count

0

All time

Active

0

Currently performing

Completed

0

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

FA2860 316 Cons Pk$355.0K100%

Awards by NAICS

238990 - All Other Specialty Trade Contractors$355.0K100%

Awards by Agency Over Time

Awards by Place of Performance

Open opportunities in Concentric Security LLC 7560 Main Street SYKESVILLE MD 21784 USA's top NAICS codes and agencies

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 8 hours ago

DEADLINE

Crack Sealing Application ServicesThe contract entails performing crack sealing services on Interstate 10 within El Paso County, requiring thorough cleaning of pavement cracks followed by the application of hot-applied rubberized sealant in full compliance with Texas Department of Transportation specifications. The work is intended to preserve pavement integrity and extend road life by preventing water infiltration and further deterioration through precise, specification-driven sealant application techniques. All activities must adhere to TxDOT standards for material quality, application methods, and operational safety protocols. This is a subcontract opportunity under NAICS code 238990, with a response deadline of September 2, 2026, and was posted on August 5, 2026. The contracting authority is the Texas Department of Transportation, and performance is limited to IH-10 in El Paso County. Interested parties must submit proposals through the Texas SmartBuy portal by the specified deadline, and the work is structured as a subcontract rather than a direct award, indicating it is part of a larger project managed by a prime contractor. There is no set-aside provision specified, meaning all eligible subcontractors may compete regardless of size or business classification.

Texas Department of Transportation

POSTED

about 8 hours ago

DEADLINE

Sign Installation and Structural Steel WorkThe contract encompasses the on-site removal of existing signage and the installation of new signs mounted on breakaway posts, gantries, or cantilever arms, with full responsibility for bolting, precise alignment, and proper grounding to ensure compliance with safety and structural standards. All work must be performed in accordance with industry best practices and transportation safety regulations, requiring skilled labor and specialized equipment to handle elevated installations and demolition tasks safely and efficiently. The contract is classified as a subcontract under NAICS code 238990 and is issued by the Texas Department of Transportation, with responses due by September 3, 2026. The place of performance is within Texas, though specific locations are not detailed, indicating the work may span multiple sites across the state. Bidders must be prepared to mobilize onsite, manage logistics for sign removal and installation in active roadway environments, and adhere to all state and federal requirements for public infrastructure projects. The solicitation is accessible via the Texas SmartBuy portal for qualified subcontractors.

Texas Department of Transportation

POSTED

about 8 hours ago

DEADLINE

Exterior Door Installation and Labor ServicesComplete installation of exterior doors is required, encompassing the removal of existing doors, proper framing adjustments, weatherproofing to ensure resistance to environmental elements, installation of all necessary hardware, and a final inspection to confirm compliance with contract specifications. The work must adhere strictly to all documented requirements and standards outlined in the contract documents, ensuring durability, functionality, and safety. This subcontract under NAICS code 238990 is issued by BOE Maintenance in Connecticut with a response deadline of September 1, 2026, and is open for bidding through the specified procurement portal.

BOE Maintenance

POSTED

about 9 hours ago

DEADLINE

Non-Electric Traffic Control Signage DeploymentThe City of San Antonio is seeking a subcontractor to install, maintain, and manage non-electric traffic control infrastructure including signage, rumble strips, and temporary control devices. This procurement falls under NAICS code 238990, covering other specialized construction activities, and is intended for work to be performed within the city’s jurisdiction. The contract opportunity was posted on August 5, 2026, with a firm response deadline of September 4, 2026, at 8:00 PM. All performance will take place in San Antonio, Texas, focusing on enhancing road safety through physical traffic control measures that do not require electrical power. The project requires expertise in durable material installation, adherence to traffic control standards, and ongoing maintenance to ensure visibility and functionality under varying environmental conditions. Subcontractors must be prepared to coordinate with local authorities and comply with all applicable safety and regulatory requirements during deployment and maintenance activities.

CITY OF SAN ANTONIO

POSTED

about 9 hours ago

DEADLINE

Raised Pavement Marker (RPM) InstallationThe contract is for the supply and installation of raised pavement markers including Botts' dots and reflective domes to clearly delineate lanes on roadways within the City of San Antonio. It is classified as a subcontract under NAICS code 238990 and is open for bids with a response deadline of September 4, 2026. The work will be performed locally in Texas, with no specific city or zip code designated for performance. The posting date shows the opportunity became publicly available on August 5, 2026, and interested parties must submit proposals before the deadline to be considered. The contract is administered through the Texas SmartBuy platform, and all details and submissions are handled via the provided online portal. There is no set-aside designation, meaning all eligible contractors may compete regardless of business size or ownership characteristics.

CITY OF SAN ANTONIO

POSTED

about 9 hours ago

DEADLINE

Pavement Marking Installation and MaintenanceThe contract titled Pavement Marking Installation and Maintenance involves the removal and installation of reflective pavement markings on city roadways within San Antonio, including stripes, legends, and crosswalks. The work is being procured as a subcontract under the NAICS code 238990, with a response deadline of September 4, 2026, and was posted on August 5, 2026. All tasks must align with local standards for visibility, durability, and safety, ensuring that markings meet or exceed regulatory requirements for nighttime and weather-condition readability. The project is administered by the City of San Antonio, Texas, and performance is expected to occur across various city roadways, though specific locations are not detailed. The subcontractor is responsible for all materials, labor, equipment, and compliance with traffic control protocols during execution. No set-aside provisions have been designated, and the contract does not specify a point of contact, with the official solicitation details accessible through the provided Texas SmartBuy portal link.

CITY OF SAN ANTONIO

POSTED

about 9 hours ago

DEADLINE

T32-D7-Fencing-I20 EB/WB-Rockdale-190813

Solicitation # 48400-eRFQ-001899-2027

The Georgia Department of Transportation is soliciting bids for the installation, repair, and maintenance of fencing associated with state highway infrastructure, limited to contractors previously qualified through the department’s prequalification process for this specific service. Eligibility is restricted to those who have successfully completed the required prequalification as mandated under Georgia law, ensuring only experienced and vetted contractors may respond. The solicitation is governed by the terms of MMSA 48400-410-000033618 and the official ITB/RFQ form, and all respondents must fully adhere to the instructions provided, as failure to comply may result in bid rejection. The Department retains full discretion to modify contract terms, add new provisions, or waive minor irregularities at any point during the procurement process. The solicitation, identified as T32-D7-Fencing-I20 EB/WB-Rockdale-190813 under reference number 48400-eRFQ-001899-2027, was posted on August 5, 2026, with a response deadline of September 1, 2026. Work will be performed in Rockdale County, Georgia, and all contractual obligations must be fulfilled in accordance with state statutes authorizing ancillary services for public road construction and maintenance. Primary point of contact for inquiries is Timothy Swink, reachable by phone or email, and all submissions must be made through the official Georgia procurement portal. Bidders are strongly advised to review the complete solicitation materials prior to submission, as the State Entity reserves the right to reject any or all bids without explanation.

Department of Transportation

POSTED

about 10 hours ago

DEADLINE

Repoint Mortar at Fort Sumter

Solicitation # DOIDFBO260078

The National Park Service’s Historic Preservation Training Center is seeking a qualified small business contractor to perform repointing work at Fort Sumter by designing, erecting, assembling, and installing scaffolding on the exterior right face wall, which measures 100 feet in length and 25 feet in height. The project requires full provision of labor, materials, and equipment necessary to safely support the repointing operation, with all work performed in accordance with historic preservation standards. The solicitation, issued under DOIDFBO260078, is a Small Business Set Aside, ensuring eligibility is restricted to businesses certified as small by the SBA, and is categorized under NAICS code 238990 for other construction specialties. The opportunity was posted on August 5, 2026, with responses due by August 19, 2026, at 9:00 PM Eastern Time. The contracting office is based in Herndon, Virginia, under the Department of the Interior’s IBC Acquisition Services Directorate, and inquiries should be directed to Angelina Clements, the primary point of contact, via phone or email provided in the solicitation.

Ibc Acq Svcs Directorate (00004)

POSTED

about 12 hours ago

DEADLINE

Chain-link Fence Purchase and Installation

Solicitation # 69727626Q000003

The contract is for the purchase and installation of a chain-link fence at the Division of Gulf Operations, specifically covering the Warehouse Loading Dock and Parking Area at Poland Street Wharf, Berth 3, Door 38, New Orleans, Louisiana, 70146. This procurement is issued under solicitation number 69727626Q000003 and is classified as a combined solicitation with a Small Business Set Aside—Total designation, meaning only small business concerns are eligible to compete. The North American Industry Classification System code is 238990, which corresponds to other specialty trade contractors. The awarding agency is the Department of Transportation’s Maritime Administration, with the office located in New Orleans, Louisiana, 70130, and the work must be performed at the specified site in New Orleans, 70146. The solicitation was posted on August 5, 2026, with a deadline for responses set for August 21, 2026, at 3:00 PM Eastern Time. Primary point of contact for inquiries is Carolyn Quinn, reachable via email at carolyn.quinn@dot.gov. All proposals must be submitted through the official SAM.gov portal linked in the solicitation.

697276 DOT Maritime Administration

POSTED

about 12 hours ago

DEADLINE

Y--Sources Sought Notice for Scaffolding for Chalmette Monument

Solicitation # DOIDFBO260079

The Department of the Interior through the Ibc Acq Svcs Directorate is seeking information from small business concerns capable of providing scaffolding services for the Chalmette Monument in Louisiana. This sources sought notice, identified by solicitation number DOIDFBO260079, was posted on August 5, 2026, with responses due by August 14, 2026 at 9:00 PM Eastern Time. The action falls under NAICS code 238990, which covers other specialty trade contractors, and is intended to assess the availability of small businesses qualified to perform the required work. The solicitation does not specify a set-aside type, indicating the government is gathering market intelligence prior to determining procurement strategy. The point of contact for inquiries is Sarah Ignacio, reachable via email at sarah_ignacio@ibc.doi.gov, with the office located in Herndon, Virginia. Performance of the work is expected to take place at the Chalmette Monument site, though specific location details are not provided in the notice.

Ibc Acq Svcs Directorate (00004)

POSTED

about 12 hours ago

DEADLINE

Emergency and On-Call Maintenance SupportThe contract titled Emergency and On-Call Maintenance Support requires prompt response to urgent plumbing leaks, electrical failures, and safety hazards, with a 24-hour response window for standard issues and a stricter 2-hour threshold for safety-critical situations. Contractors are expected to either perform minor repairs directly or arrange for specialized trade professionals to address more complex problems, ensuring continuous operational safety and functionality. All work must align with the needs of the Department of Transportation in North Carolina, with performance obligations rooted in maintaining critical infrastructure without delay. This subcontract, identified under NAICS code 238990, was posted on August 5, 2026, and requires proposals to be submitted no later than August 26, 2026, at 7:00 PM. The scope is focused on emergency maintenance support without specific geographic details provided beyond the state level, and while no set-aside provisions are designated, the opportunity is open to qualified subcontractors ready to meet rigorous response timelines and reliability standards for public infrastructure systems.

Department of Transportation

POSTED

about 19 hours ago

DEADLINE

Temporary Traffic ControlThe contract involves the setup and maintenance of temporary traffic control measures for a project location in Palmyra, including the deployment and management of flaggers, signs, cones, and message boards. This is a subcontract opportunity issued by the Maine Department of Transportation, with responses due by August 26, 2026, and the solicitation was posted on August 5, 2026. The work falls under NAICS code 238990, which pertains to other specialty trade contractors, suggesting the scope requires specialized skills in traffic safety and control. The place of performance is specifically in Palmyra, though other geographic details such as state and zip code are not provided in the data, and no set-aside preferences or point of contact information is listed. Interested parties must review the official bid opportunity page on the Maine DOT website to access full specifications and submission requirements.

Maine Department of Transportation

POSTED

about 20 hours ago

DEADLINE

Guardrail InstallationThe Maine Department of Transportation is seeking a subcontractor to install safety guardrails along a bridge and its approach roadway to comply with established safety standards. The contract is targeted at a specific location in Palmyra, with work expected to enhance structural safety and public protection. Interested parties must submit responses by August 26, 2026, at 12:00 PM, and the opportunity was posted on August 5, 2026. The North American Industry Classification System code 238990 identifies this as a miscellaneous construction specialty trade contract, indicating the specialized nature of the work involved. The procurement is open to qualified subcontractors with relevant experience in highway safety infrastructure, though no set-aside provisions are specified. All submissions and inquiries should be directed through the official Maine DOT bid opportunities portal linked in the posting.

Maine Department of Transportation

POSTED

about 20 hours ago

DEADLINE

Erosion and Water Pollution ControlThe contract titled Erosion and Water Pollution Control is a subcontract issued by the Maine Department of Transportation for the installation and maintenance of erosion control measures including silt fences, sediment basins, and inlet protection systems. Work is to be performed in Palmyra, Maine, with responses due by August 26, 2026, and the solicitation was posted on August 5, 2026. The contract falls under NAICS code 238990, indicating it relates to other specialty trade contractors, specifically those involved in environmental and site preparation services. The focus is on preventing sediment runoff and minimizing water pollution during construction activities, ensuring compliance with environmental protection standards. There is no specified set-aside type or designated point of contact listed in the documentation.

Maine Department of Transportation

POSTED

about 20 hours ago

DEADLINE

Pavement MarkingThe contract pertains to the application of white or yellow pavement markings on a bridge and its approach roadway using either thermoplastic or paint materials, ensuring visibility and compliance with safety standards. Work is specifically designated for the Palmyra location and falls under the NAICS code 238990, indicating it is a specialized construction service related to other miscellaneous construction activities. This is a subcontract opportunity issued by the Maine Department of Transportation, with submission due by August 26, 2026, at 12:00 PM. The solicitation is open to qualified contractors capable of delivering durable, high-contrast pavement markings that meet state and federal transportation requirements, with performance expected to align with the agency’s maintenance and safety protocols for road infrastructure.

Maine Department of Transportation

POSTED

about 20 hours ago

DEADLINE

Removal and Disposal of Existing Light PolesThe contract requires the complete removal and proper disposal of 28 existing light poles and their associated fixtures from their concrete foundations at two locations: Wailua Marina and Smith's Luau. The work involves dismantling the poles, extracting the fixtures, and removing the embedded foundations to ensure the site is left clean and safe. All debris and materials must be disposed of in compliance with applicable environmental and waste handling regulations. The solicitation is classified as a subcontract under NAICS code 238990, indicating it falls under other construction-related services. The contract is issued by the Department of Land & Natural Resources under its Hawaii office, with a response deadline of August 25, 2026, and was posted on August 4, 2026. There is no set-aside designation specified, and the place of performance and contact details are not provided in the data.

Department of Land & Natural Resources

POSTED

DEADLINE

Subfloor Repair and ReplacementThe contract calls for the demolition and replacement of deteriorated wood subflooring across all interior rooms and exterior lanais of the cabins, with the work to be completed prior to the installation of new flooring. This scope ensures structural integrity and prepares the surfaces for durable, long-term flooring solutions. The project is classified under NAICS code 238990, indicating it falls under other specialty trade contractors, and is positioned as a subcontract opportunity under the Department of Land & Natural Resources, Hawaii. The solicitation was posted on August 4, 2026, with a response deadline of August 25, 2026, allowing potential bidders a three-week window to submit proposals. Performance location is within Hawaii, though specific city or address details are not provided. The contract does not specify any set-aside criteria or point of contact information, and the official solicitation can be accessed via the provided link to the Hawaii eProcurement portal.

Department of Land & Natural Resources

POSTED

DEADLINE