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21st Century Software Inc. 43416 Colter Court ASHBURN VA 20147 USA

UEI: SLED_AD47DC38E56FFC17

21st Century Software Inc. 43416 Colter Court ASHBURN VA 20147 USA is a federal contractor, registered under UEI SLED_AD47DC38E56FFC17. It has been awarded $2,459,924 in federal contracts. Primary work spans Engineering Services.

Contact Information

Registration and classification details

Registration

UEI Code

SLED_AD47DC38E56FFC17

Federal Contracting Overview

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

AI Capability Profile

21st Century Software Inc. provides specialized engineering and production support for postal automation and sorting infrastructure. Their technical expertise includes the build and production support of High Speed Flats Feeders (HSFF), focusing on the research and implementation of high-volume mail...

Key Performance Metrics

Awards Count

1

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

$2.5M100%

Awards by NAICS

541330 - Engineering Services$2.5M100%

Awards by Agency Over Time

Awards by Place of Performance

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Pure Water Southern California Direct Potable Reuse Testing Facility

Solicitation # pure-water-southern-california-direct-potable-reuse-testing-facility

Kiewit Infrastructure West Co. is seeking proposals for the Pure Water Southern California Direct Potable Reuse Testing Facility project located in California. This solicitation is specifically set aside for small businesses, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, and Women-Owned Small Businesses, falling under NAICS code 541330. The solicitation was posted on October 29, 2026, with a response deadline of November 3, 2026. Interested parties should coordinate with the primary point of contact, Sepideh Aria, for further details regarding the submission process and project requirements.

Kiewit Infrastructure West Co.

POSTED

about 2 hours ago

DEADLINE

Business Impact Analysis and Update Disaster Recovery Plan Services – Inland Empire Utilities Agency

Solicitation # business-impact-analysis-update-disaster-recovery-plan-services-inland-empire-utilities-agency

Aanko Technologies Inc. is soliciting certified Disadvantaged Business Enterprise and Small Business Enterprise sub-consultants and suppliers to provide professional services for the Inland Empire Utilities Agency in San Bernardino and Riverside Counties, California. The scope of work focuses on emergency management, business continuity planning, technical writing, data collection, and the updating of IT and disaster recovery plans. Eligible firms should operate under NAICS codes related to administrative management, engineering services, computer systems design, or public relations and technical writing. Interested parties must submit their responses by November 17, 2026. Primary coordination for this opportunity is managed by Liz Jordan-Wettstein.

Aanko Technologies Inc.

POSTED

about 2 hours ago

DEADLINE

MEP (Mechanical, Electrical, Plumbing) Engineering

Healthcare Materials Management Services (HMMS)

POSTED

about 5 hours ago

DEADLINE

in about 1 month

Civil Engineering & Site Works Design

Healthcare Materials Management Services (HMMS)

POSTED

about 5 hours ago

DEADLINE

in about 1 month

Structural Engineering Services

Healthcare Materials Management Services (HMMS)

POSTED

about 5 hours ago

DEADLINE

in about 1 month

Solicitation # 49564

The New Jersey Department of Transportation Procurement is soliciting bids for contract TP-869, which focuses on construction inspection services for the Route 295/42/I-76 Direct Connection project. Specifically categorized as Construction Inspection C-6 Level B, this project falls under NAICS code 541330 and will be performed within the state of New Jersey. Interested parties must submit their responses by the deadline of November 5, 2026, at 3:00 PM. The solicitation was officially posted on October 29, 2026, and further details regarding the bidding process can be accessed through the Bid Express platform.

New Jersey Department of Transportation Procurement

POSTED

about 5 hours ago

DEADLINE

Rail Infrastructure & Network Analysis

North Lincolnshire Council

POSTED

about 5 hours ago

DEADLINE

Rail Service Feasibility Study

North Lincolnshire Council

POSTED

about 6 hours ago

DEADLINE

Utility Infrastructure Planning and Coordination

POSTED

about 6 hours ago

DEADLINE

in about 1 month

Structural Design and Analysis Services

POSTED

about 6 hours ago

DEADLINE

in about 1 month

First Article and Production Lot Testing (FAT/PLT)This subcontract involves performing First Article Testing and Production Lot Testing for prime contractors supporting DLA Troop Support hardware contracts. The primary objective is to validate manufactured assemblies against technical drawings and specifications to ensure full design and process compliance. Key responsibilities include developing inspection method sheets, coordinating the return of samples, and delivering certified test reports along with validated samples. The project is managed under the Department of Defense for Construction and Equipment Containers, with performance taking place in New Cumberland, Pennsylvania. Classified under NAICS code 541330, the opportunity was posted on October 29, 2026, with a response deadline of November 9, 2026.

CONSTRUCTION & EQUIPMENT CONTAINERS

POSTED

about 7 hours ago

DEADLINE

Reverse Engineering & Technical Documentation ServicesThis subcontract opportunity, titled Reverse Engineering and Technical Documentation Services, supports the Department of Defense through the DLA Weapons Support Maritime Supply Chain. The selected provider will perform engineering analysis and reverse engineer existing components to develop precise manufacturing drawings and comprehensive Engineering Analysis Reports for prime contractors. Technical execution requires the use of 3D scanning, CMM, and CAD software to ensure accurate documentation of hardware. The procurement is designated as a Total Small Business Set-Aside under NAICS code 541330. Interested parties must submit their responses by November 13, 2026, following the posting date of October 29, 2026. The primary objective of the contract is the delivery of detailed technical drawings and analysis reports to sustain maritime supply chain hardware.

DLA WEAPONS SUPPORT MARITIME SUPPLY CHAIN

POSTED

about 7 hours ago

DEADLINE

Transportation & Parking Reform ConsultantThe City of Cambridge is seeking a Transportation and Parking Reform Consultant under a subcontract to establish updated street design and parking reform standards for prime contractors. The primary objective is to develop context-based, interconnected street networks and implement strategies that prioritize the increase of on-street parking while simultaneously reducing the prevalence of surface lots. A key component of the project involves integrating Light Imprint infrastructure to enhance overall walkability within the city. The selected consultant will be responsible for delivering formal street design standards and a dedicated Parking Reform section to be integrated into the city code. This opportunity, categorized under NAICS code 541330, was posted on October 29, 2026, with a response deadline of December 1, 2026.

City of Cambridge

POSTED

about 7 hours ago

DEADLINE

in about 1 month

Urban Design & Form-Based Code SpecialistThis subcontract opportunity is for an Urban Design and Form-Based Code Specialist to support prime contractors on development projects for the City of Cambridge in Maryland. The selected specialist will be responsible for drafting Form-Based Codes, which includes developing the Rural to Urban Transect and Pedestrian Sheds, as well as establishing building form standards for massing, height, and placement. Key deliverables include the creation of regulating plans, zoning maps, and the final draft of the Cambridge Development Code and Building Form Standards. A significant focus of the scope involves designing Missing Middle Housing typologies, specifically courtyard apartments and cottage courts. Interested parties should note that the response deadline for this engagement is December 1, 2026. The project falls under NAICS code 541330, focusing on engineering services to modernize the city's urban design and zoning framework.

City of Cambridge

POSTED

about 7 hours ago

DEADLINE

in about 1 month

Landscape Architecture & Site DesignThis subcontract opportunity for Landscape Architecture and Site Design supports prime contractors on community development projects for the Town of Orange Park in Florida. The selected provider will be responsible for developing site plans, creating historic design regulations, and delivering professional landscape architecture drawings and renderings using CAD software and advanced rendering tools. Qualified candidates must hold a valid Professional Landscape Architect license in the State of Florida. Interested parties should note that the response deadline for this solicitation is December 1, 2026.

Town of Orange Park

POSTED

about 7 hours ago

DEADLINE

in about 1 month

Urban Planning & Zoning ConsultancyThe Urban Planning and Zoning Consultancy is a subcontract opportunity with the Town of Orange Park in Florida. The selected provider will deliver professional planning services to prime contractors, focusing on the management of land use development through Town Land Development Regulations. Key responsibilities include providing expert advice on subdivision regulations and zoning ordinances, preparing comprehensive plan amendments, and offering strategic zoning recommendations. The role requires a high level of expertise in Florida land use law and the proficient use of GIS tools and planning software. Interested parties must submit their responses by December 1, 2026. This engagement falls under NAICS code 541330, ensuring that the consultancy provides specialized technical guidance to support the town's urban development goals.

Town of Orange Park

POSTED

about 7 hours ago

DEADLINE

in about 1 month

Electrical Engineering and Load Assessment ServicesThis subcontract for Electrical Engineering and Load Assessment Services supports facility projects for the Chattahoochee County Board of Education in Georgia. The selected provider will perform site surveys at two schools and conduct electrical load monitoring to determine appropriate generator sizing. Using CAD software, the contractor is responsible for developing detailed engineering plans that address electrical integration and specific space constraints. The project requires the delivery of comprehensive site assessment reports and finalized engineering plans. A valid Professional Engineer license is mandatory for this engagement. Interested parties must submit their responses by December 18, 2026, under NAICS code 541330.

Chattahoochee County Board of Education

POSTED

about 8 hours ago

DEADLINE

in about 2 months

2026 CPRG NCD SOQ

Solicitation # 2026-SOQ-004

The City of Rogers is soliciting Statements of Qualifications (SOQ) under solicitation number 2026-SOQ-004 for Natural Channel Design services to restore approximately 4,200 linear feet of stream in an urban setting. The scope of work includes engineering, plan design, hydrologic and hydraulic modeling, and the procurement of all necessary local, state, and federal regulatory permits, including potential Letter of Map Revision submissions to FEMA. This project is funded by the Climate Pollution Reduction Grant (CPRG) subaward CPRG-NWA-001 and EPA award 02F75801, requiring compliance with EPA nondiscrimination regulations, Title VI of the Civil Rights Act of 1964, and 40 CFR Parts 5 and 7. Key milestones include the completion and approval of construction plans and permit applications by May 1, 2027, with final construction completion targeted for December 31, 2027. Selection is based on a ranking of qualifications rather than price, with the highest-ranked firm invited to negotiate a contract. Evaluation criteria focus on professional staff expertise, past performance, understanding of the scope, and the quality of the work plan. Interested firms must submit a PDF via OpenGov or hard copy to Colt Craig by November 10, 2026. Submissions are limited to 25 pages and must include Standard Form 330 Part II, an Equal Employment Opportunity policy, the Arkansas DFA Illegal Immigrant Contractor Disclosure Form, and EPA certifications regarding debarment and lobbying for contracts exceeding 100,000 dollars. Additionally, firms must maintain active registration in SAM.gov and demonstrate a commitment to DBE goals through six good faith efforts in subcontracting per 40 CFR 33.301.

Community Development

POSTED

about 9 hours ago

DEADLINE