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Sienia Construction Inc

UEI: SLED_29CFF2711D480A89

Sienia Construction Inc is a federal contractor, registered under UEI SLED_29CFF2711D480A89. It has been awarded $35,858,468 in federal contracts. Primary work spans Unknown NAICS. Top awarding agencies include Design and Construction, Parks and Recreation, and Homeless Services.

Contact Information

Registration and classification details

Address

Registration

UEI Code

SLED_29CFF2711D480A89

Federal Contracting Overview

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

AI Capability Profile

Sienia Construction Inc specializes in general construction and comprehensive facility modernization. Their core capabilities include ADA compliance upgrades, such as the installation of accessible ramps and restroom modifications, as well as complex mechanical and electrical system overhauls. Techn...

Key performance metrics

Award counts and award dollars by type, as prime and as subcontractor.

Awards Count

10

All time

Active

2

Currently performing

Completed

7

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

Awards by agency, industry, year, award type, size, and place of performance.

Awards by Agency

Design and Construction$20.5M57.3%Parks and Recreation$9.6M26.9%Homeless Services$3.7M10.4%Department Of Design And Construction$1.9M5.4%

Awards by NAICS

Awards by Agency Over Time

Awards by Place of Performance

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Open opportunities in Sienia Construction Inc's top NAICS codes and agencies

Legacy Hardware Parts SupplyThis subcontract for the New York City Department of Design and Construction focuses on the procurement of replacement parts for legacy hardware from brands including HP, Dell, EMC, and Cisco. The scope of work involves sourcing and testing new-old-stock and refurbished components, specifically hard drives, memory modules, and proprietary circuit boards for end-of-life equipment. All delivered hardware must meet original equipment manufacturer specifications and include warranty guarantees for refurbished items. The contract is categorized under NAICS code 423430 and is intended to support prime contractors working on DDC projects within New York City. Interested parties should note the posting date of November 10, 2026, with a response deadline set for November 18, 2026.

Department Of Design And Construction

POSTED

DEADLINE

Data Center Power & Infrastructure MaintenanceThis subcontract for Data Center Power and Infrastructure Maintenance involves providing specialized maintenance for power distribution and backup systems on New York City Department of Design and Construction projects. The scope of work includes performing preventative maintenance on Uninterruptible Power Supplies, conducting battery testing, and inspecting Power Distribution Units to ensure certified power stability and the delivery of detailed maintenance logs. Qualified providers must hold electrical licensure in accordance with New York City code and maintain strict compliance with NYC Living Wage requirements. The project is categorized under NAICS code 238210 and is performed within New York City. Interested parties must respond by November 18, 2026.

Department Of Design And Construction

POSTED

DEADLINE

Legacy Network Equipment Maintenance and SupportThis subcontract involves providing specialized maintenance and hardware support for legacy network connectivity equipment used by prime contractors on New York City Department of Design and Construction projects. The scope of work focuses on the repair of switches, routers, and firewalls, with a specific emphasis on replacing failed fans, power supplies, and line cards for Cisco hardware. The successful provider must deliver functional network hardware along with detailed connectivity reports. To qualify for this engagement, personnel must hold a CCNA, CCNP, or an equivalent Cisco hardware certification. The work is performed within New York City under NAICS code 811212. Interested parties should note the response deadline of November 18, 2026, for this Department of Design and Construction requirement.

Department Of Design And Construction

POSTED

DEADLINE

Enterprise Server & Storage MaintenanceThe Enterprise Server and Storage Maintenance subcontract involves providing specialized hardware maintenance, troubleshooting, and repair services for legacy server and data storage arrays. Supporting prime contractors on New York City Department of Design and Construction projects, the scope of work includes replacing critical components such as motherboards, CPUs, RAM, and drive controllers for HP, Dell, and EMC systems. The primary objectives are to ensure consistent hardware uptime and provide detailed repair logs. To qualify, service providers must hold technical certifications in HP, Dell, and EMC hardware and maintain strict compliance with NYC Living Wage requirements. This opportunity is categorized under NAICS code 811212 and is based in New York City. Interested parties should note the response deadline of November 18, 2026.

Department Of Design And Construction

POSTED

DEADLINE

85027Y0188-NYC Department of Design and Construction (DDC) Service Express Hardware Maintenance

Solicitation # 85027Y0188

The New York City Department of Design and Construction is soliciting a vendor for the annual renewal of Service Express hardware maintenance services. This contract focuses exclusively on the maintenance of existing DDC-owned hardware, including servers, data storage, backup, power, and network equipment located in on-premises data centers and network sites. Because much of the equipment from manufacturers such as HP, Dell, EMC, and Cisco is past its standard support period, the agency requires a single agreement to cover these diverse makes to ensure the continued operation of critical applications, databases, and network connectivity. The solicitation requires strict adherence to several New York City and State regulatory mandates. Contractors must comply with the MacBride Principles regarding non-discrimination in employment for operations in Northern Ireland and certify that they are not on the Iran Divestment list. Additionally, the vendor must comply with Section 6-109 of the Administrative Code, ensuring the payment of prevailing or living wages, maintaining certified payroll records for four years, and posting required wage notices at work sites. Failure to cure breaches of these labor requirements within thirty days may result in contract termination. Other required documentation includes the Doing Business Data Form and a Tax Affirmation Template.

Department Of Design And Construction

POSTED

DEADLINE

Request for Expressions of Interest for Broadway Malls, W96 Street Building

Solicitation # 20261030022

The New York City Department of Parks and Recreation is soliciting expressions of interest for the repurposing of the Broadway Malls W96 Street Building and its surrounding park area in Manhattan for parks-related use. This opportunity involves the licensed premises located at Block 1243 and Lot 55. Interested parties can obtain hard copies or download the request documents starting November 6, 2026, via the official Parks website or by contacting Senior Project Manager Katherine Cognata. A recommended remote informational meeting is scheduled for November 13, 2026, at 12:00 p.m., with on-site visits available by appointment. All proposals must be submitted by the deadline of December 11, 2026, at 2:00 p.m. The solicitation is identified by PIN M96-EX-2026 and solicitation number 20261030022.

Parks And Recreation

POSTED

DEADLINE

BG-426M Brooklyn Street Tree Planting FY27 - CBs 6, 13

Solicitation # 20261026031

The New York City Department of Parks and Recreation is soliciting bids for the BG-426M Brooklyn Street Tree Planting FY27 project, focusing on Community Boards 6 and 13. This procurement is governed by Section 6-129 of the New York City Administrative Code and is identified by PIN 84627B0014 and solicitation number 20261026031. Interested parties must submit their technical qualifications and bid submissions through the PASSPort system, which requires a NYC ID account for access to all solicitation documents and drawings. The bid opening is scheduled for November 27, 2026, at 11:30am via Zoom, with a final response deadline of 3:30pm on the same day.

Parks And Recreation

POSTED

DEADLINE

HWCB27QXM: REPLACEMENT OF CONCRETE, STEEL FACED AND GRANITE CURBS AND RELATED SIDEWALK AND ROADWAY RESTORATION

Solicitation # 20261026020

The New York City Design and Construction agency is soliciting bids for project HWCB27QXM, which involves the replacement of concrete, steel faced, and granite curbs, along with associated sidewalk and roadway restoration. This local government procurement is identified by solicitation number 20261026020 and EPIN 85027B0025. Interested vendors must submit their responses through the PASSPort Public Portal by the deadline of November 23, 2026. While the solicitation is available to the public via the portal for non-PQL projects, certified vendors are required for PQL projects. Primary inquiries regarding this project should be directed to Karen General via email or phone.

Design And Construction

POSTED

DEADLINE

HWCB27KR: REPLACEMENT OF CONCRETE, STEEL FACED AND GRANITE CURBS AND RELATED SIDEWALK AND ROADWAY RESTORATION

Solicitation # 20261026019

The New York City Department of Design and Construction is soliciting bids for project HWCB27KR, which involves the replacement of concrete, steel faced, and granite curbs, along with associated sidewalk and roadway restoration. This local government procurement is identified by solicitation number 20261026019 and EPIN 85027B0026. Interested vendors must submit their responses through the PASSPort Public Portal by the deadline of November 23, 2026. For further information or project inquiries, the primary point of contact is Karen General, who can be reached via email at [email hidden] or by phone at [phone hidden].

Design And Construction

POSTED

DEADLINE

Street Tree Planting and Tree Pit RestorationThis subcontract for Street Tree Planting and Tree Pit Restoration supports New York City Department of Design and Construction roadway projects. The selected contractor is responsible for the receiving, storage, and planting of city-provided street trees while working alongside prime contractors. Key operational requirements include performing saw cutting and pavement removal for tree pits, applying topsoil or engineered soil, and spreading mulch in strict accordance with agency planting specifications to deliver fully completed pits. The project is based in New York City and falls under NAICS code 561730. Interested parties must adhere to the timeline associated with the solicitation, which was posted on October 30, 2026, with a response deadline of November 23, 2026.

Department Of Design And Construction

POSTED

DEADLINE

Asphalt Paving and Roadway RestorationThis subcontract for Asphalt Paving and Roadway Restoration involves the restoration of roadway surfaces adjacent to new curb installations for prime contractors working on New York City Department of Design and Construction projects. The scope of work requires the application of a 1.5 inch thick asphaltic concrete wearing course, utilizing asphalt pavers and rollers to deliver a finished surface that conforms to Standard Highway Specifications Sections 4.02 and 4.04. The project is located in New York City and falls under NAICS code 237310. Interested parties must submit their responses by the deadline of November 23, 2026.

Department Of Design And Construction

POSTED

DEADLINE

Granite Curb Supply and InstallationThis subcontract opportunity involves the supply and installation of new granite curbs, as well as the resetting of existing granite curbs, for prime contractors working on New York City Department of Design and Construction roadway projects. The scope of work includes furnishing and setting new straight granite curbs and the careful removal and resetting of existing curbing, all performed in strict accordance with NYC Standard Highway Specifications. The project is based in New York City under NAICS code 238990. Interested parties must submit their responses by the deadline of November 23, 2026, for this agency-led initiative focused on municipal infrastructure improvements.

Department Of Design And Construction

POSTED

DEADLINE

Steel Faced Curb Installation and FinishingThis subcontract for Steel Faced Curb Installation and Finishing involves the supply and installation of steel facing plates for concrete curbs on New York City Department of Design and Construction roadway projects. The scope of work includes furnishing and setting new steel facing plates for straight, depressed, and corner concrete curbs, ensuring all installations are delivered complete. The contractor is responsible for applying protective industrial paint and coatings in strict accordance with Standard Drawing H-1010 and NYC Standard Highway Specifications Section 4.09. This project is categorized under NAICS code 238110 and will be performed within New York City, with a response deadline set for November 23, 2026.

Department Of Design And Construction

POSTED

DEADLINE

Concrete Curb and Pavement InstallationThis subcontract for Concrete Curb and Pavement Installation involves providing specialized construction services for prime contractors on New York City Department of Design and Construction roadway projects. The scope of work includes the removal of existing curbs and the installation of new concrete curbs and pavement bases, specifically including the pouring of curb cradles with a minimum depth of 18 inches and the installation of high-early strength concrete bases for trench restoration. All pedestrian ramps and depressed curbs must be constructed in strict accordance with 2010 ADA Standards and 2024 PROWAG guidelines. The project is located in New York City under NAICS code 238110, with a response deadline set for November 23, 2026.

Department Of Design And Construction

POSTED

DEADLINE

Industrial Painting for Steel CurbsThis subcontract opportunity involves providing industrial painting services for steel curb facing plates used on New York City Department of Design and Construction projects. The selected contractor will be responsible for the complete process of preparing steel surfaces and applying paint in strict accordance with Standard Drawing H-1010, followed by the delivery of the finished plates to prime contractors. The project is based in New York and falls under NAICS code 331421. Interested parties must submit their responses by the deadline of November 23, 2026, following the posting date of October 30, 2026.

Department Of Design And Construction

POSTED

DEADLINE

Traffic Control and MOT ServicesThis subcontract opportunity is for the provision of traffic control and maintenance of traffic services for prime contractors working on New York City Department of Design and Construction projects. The scope of work focuses on ensuring a safe and compliant work zone through the installation of temporary signage and lighted timber barricades, strictly adhering to NYC DOT Section 6.70 and OCMC Traffic Stipulations. The project is based in New York City and falls under NAICS code 238990. Interested parties must submit their responses by the deadline of November 23, 2026, following the posting date of October 30, 2026.

Department Of Design And Construction

POSTED

DEADLINE

Urban Landscaping and Tree ServicesThe Urban Landscaping and Tree Services subcontract involves providing specialized vegetation management for prime contractors on New York City Department of Design and Construction projects. The scope of work includes the removal of trees ranging from 4 to 18 inches in caliper along with stump removal, as well as the planting of new 3 to 3.5 caliper trees in 5 by 10 foot pits with topsoil installation. Additionally, the contractor is responsible for maintenance pruning and the handling of street trees provided by the City to ensure sites are cleared and planted according to specifications. This opportunity is categorized under NAICS code 561730 and is based in New York City. Interested parties should note that the solicitation was posted on October 30, 2026, with a response deadline of November 23, 2026. All performance of work will take place within New York City under the oversight of the Department of Design and Construction.

Department Of Design And Construction

POSTED

DEADLINE

Granite Curb InstallationThis subcontract opportunity involves the supply and installation of granite curbs for prime contractors working on New York City Department of Design and Construction projects. The scope of work includes the installation of new straight granite curb systems, as well as the resetting of existing granite curbs, ensuring all systems are properly delivered, installed, and aligned. The project is based in New York City and falls under NAICS code 238990. Interested parties must submit their responses by the deadline of November 23, 2026.

Department Of Design And Construction

POSTED

DEADLINE