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 5 at 2:00 PM EDT

Register Free →

Get CLEATUSFree Trial

Get CLEATUSFree Trial

Search

Top

21st Century Software Inc. 43416 COLTER CT. ASHBURN VA 20147-5342 USA

UEI: SLED_726BDCEEEAAF3400

21st Century Software Inc. 43416 COLTER CT. ASHBURN VA 20147-5342 USA is a federal contractor, registered under UEI SLED_726BDCEEEAAF3400. It has been awarded $2,330,874 across 1 federal contract. Primary work spans Engineering Services.

Contact Information

Registration and classification details

Registration

UEI Code

SLED_726BDCEEEAAF3400

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

$2.3M100%

Awards by NAICS

541330 - Engineering Services$2.3M100%

Awards by Agency Over Time

Awards by Place of Performance

Open opportunities in 21st Century Software Inc. 43416 COLTER CT. ASHBURN VA 20147-5342 USA's top NAICS codes and agencies

Construction Management Services IDIQThe Port of Seattle is seeking qualified firms to provide Construction Management services through an Indefinite Delivery/Indefinite Quantity (IDIQ) contract to support a range of major construction projects across its facilities. These services will span the full lifecycle of projects including planning, design, construction, and closeout phases, with a focus on Design Build, Progressive Design Build, and alternative delivery methods. The contractor will be responsible for ensuring that all projects adhere to approved schedules, budgets, and quality standards while coordinating with Port staff and stakeholders to deliver complex infrastructure initiatives efficiently and effectively. The contract will serve as the primary mechanism for securing CM expertise across multiple future projects without specifying individual task orders at this time. The solicitation is classified under NAICS code 541330 for Architectural, Engineering, and Related Services and is managed by the Port’s Construction Management division. Primary point of contact for inquiries is Hala Rabbo, with additional support available from Project Manager Ann Davidson. The contract is forecasted for release in July 2026, though no formal solicitation number or set-aside details have been published. Performance will occur at various Port of Seattle locations, and interested firms are encouraged to monitor the official Port portal for official posting and submission guidelines. All contractors must demonstrate proven experience in managing large-scale public construction projects under similar delivery models.

Construction Management

POSTED

about 1 hour ago

DEADLINE

Retro-Commissioning, TAB, Controls, and Regulatory Support IDIQThe consultant will deliver retro-commissioning, test/adjust/balance, controls, and regulatory support services across Seattle-Tacoma International Airport’s facilities and infrastructure systems, operating within a continuous 24/7/365 environment. The focus is on identifying and correcting performance deficiencies in mechanical, HVAC, plumbing, lighting, Direct Digital Controls, smoke control, and fire protection systems to enhance efficiency, reliability, comfort, and longevity while ensuring compliance with safety and regulatory standards. All work will be executed under Service Directives and executed in close coordination with Aviation Facilities and Infrastructure to meet agreed-upon deliverables. The contract is structured as an IDIQ vehicle under NAICS code 541330 and is managed by the Port of Seattle’s Aviation Facilities and Infrastructure division. Point of contact for inquiries and coordination includes Jason Gates as the primary liaison and Jim Farris as the project manager, with all communication and administrative details centered through the Port of Seattle’s official procurement portal. The solicitation was posted in July 2026 and is intended to establish a framework for ongoing support services critical to maintaining the airport’s complex operational systems.

Aviation Facilities & Infrastructure

POSTED

about 1 hour ago

DEADLINE

Mechanical, Electrical, and Plumbing (MEP) EngineeringThe contract seeks qualified firms to design mechanical, electrical, plumbing, and fire protection systems for public buildings under a subcontract arrangement, classified under NAICS code 541330 for architectural and engineering services. The solicitation was posted on July 25, 2026, with a response deadline set for September 7, 2026, and is being managed by the State of Utah, though no specific city or office address is provided. Scope of work includes comprehensive MEP system design for public infrastructure projects, requiring technical expertise in integrated building systems to meet safety, efficiency, and code compliance standards. While no set-aside provisions or point of contact details are listed, interested parties must submit proposals through the designated online portal by the stated deadline.

POSTED

about 22 hours ago

DEADLINE

in about 1 month

Structural Engineering ServicesThe contract titled Structural Engineering Services seeks qualified providers to perform structural analysis and design for buildings and structures, with specific emphasis on foundation systems and seismic evaluations to ensure compliance with safety and resilience standards. Work is expected to involve detailed engineering assessments, modeling, and documentation to support the integrity and durability of constructed facilities under dynamic and environmental loads. The opportunity is categorized as a subcontract and was posted on July 25, 2026, with responses due by September 7, 2026, and is governed under NAICS Code 541330 for architectural and engineering services. All performance obligations are tied to the state of Utah, though no specific city or address is provided, and the contracting entity is identified as the Utah state agency without further organizational subdivision or point of contact details listed.

POSTED

about 22 hours ago

DEADLINE

in about 1 month

BD26-XX Pre-Qualified Design Professional Services Pre-Qualified Vendor ListThe State of Utah Division of Purchasing is seeking statements of qualifications from design professionals to establish a pre-qualified vendor list for architectural and engineering services, under the solicitation number BD26-XX. This open-ended list will remain active for twelve months from the date of approval, after which vendors must resubmit their qualifications for renewal. The State reserves the right to reopen the solicitation at any time, though not more frequently than once every twelve months, to accommodate additional qualified vendors or adjust criteria as needed. The posting date is July 25, 2026, with responses due by September 7, 2026, and all selections will be managed through the state’s procurement platform. Interested firms must submit their credentials to be considered for inclusion, which does not guarantee work but enables eligibility for future project assignments. The point of contact for this solicitation is Brayden Dent, reachable via email at braydend@utah.gov, and all submissions must be made through the official online portal at the provided UI link. The procurement is not subject to any specific set-aside classifications and applies across the State of Utah with no designated city or zip code for performance, meaning services may be required anywhere within the state. Vendors are expected to demonstrate relevant experience, expertise, and capability in design services appropriate for public sector projects. Approval does not constitute a contract or commitment to award work but allows the State to directly engage pre-qualified firms as needs arise, streamlining the selection process for time-sensitive or recurring design projects.

POSTED

about 22 hours ago

DEADLINE

in about 1 month

Quality Assurance and Sampling Inspection ServicesThis contract requires the performance of quality assurance and sampling inspection services under MIL-STD-1916 or ASQ H1331 Table 1, with a strict zero tolerance policy for any non-conformances on critical, major, and minor attributes. The work involves rigorous inspection protocols to ensure every product meets exacting standards without exception, targeting high-stakes components where even minor deviations are unacceptable. The solicitation is structured as a subcontract under a Total Small Business Set-Aside, meaning only small businesses certified by the SBA are eligible to respond, reinforcing the intent to support small business participation in defense-related quality initiatives. The NAICS code 541330 indicates the primary focus is on scientific and technical consulting services, specifically quality control and inspection activities, and the contracting activity is under the ASC Commodities Division of the Department of Defense. The opportunity was posted on July 25, 2026, with a response deadline of August 8, 2026, providing a two-week window for qualified small businesses to submit proposals. While no specific place of performance or point of contact is detailed in the provided data, the work is tied to a Defense Logistics Agency procurement platform, suggesting inspections will support the broader DOD supply chain. The absence of an office address or zip code implies that the location of performance may be flexible or determined by the nature of the subcontracted materials being inspected, potentially across multiple facilities or contractor sites under the DOD’s control. The requirement underscores the critical importance of precision and compliance in defense-related quality assurance, where failure to meet zero tolerance standards could compromise operational readiness and safety.

ASC COMMODITIES DIVISION

POSTED

DEADLINE

Supply Chain Traceability & Quality Documentation ServicesThe contract requires comprehensive documentation and recordkeeping services to ensure end-to-end supply chain traceability in alignment with DLA quality standards, focusing on full visibility and accountability across all procurement and logistics activities. All work must adhere to the specified compliance framework to support audit readiness and operational integrity, with deliverables designed to validate the provenance and integrity of materials throughout the supply chain. This subcontract falls under NAICS code 541330 and is managed by the ASC Commodities Division within the Department of Defense, with responses due by July 31, 2026. The place of performance and point of contact details are not specified, but performance is expected to support DLA’s broader mission of maintaining rigorous quality control across defense supply networks.

ASC COMMODITIES DIVISION

POSTED

DEADLINE

Inspection, Testing, and Quality Assurance ServicesThe contract requires the performance of technical inspection and testing on newly manufactured compressor ducts at both their origin and destination locations to verify full compliance with established engineering and qualification standards. This work is critical to ensuring that each duct meets stringent performance, safety, and reliability criteria before being accepted for use in defense-related systems. The scope is focused on quality assurance through rigorous testing protocols and documentation, with an emphasis on traceability and adherence to technical specifications throughout the supply chain. This is a subcontract under the NAICS code 541330 for engineering services, issued by the Department of Defense through the Ok DLA Aviation office in Oklahoma City. The solicitation was posted on July 25, 2026, with a response deadline of August 25, 2026. While specific location details for performance are not provided, the work must be conducted at manufacturing sites and final delivery points to cover the full lifecycle of the components. There is no set-aside designation, indicating this opportunity is open to all eligible contractors, and the successful bidder will be responsible for delivering comprehensive inspection reports and test data to confirm regulatory compliance.

Ok DLA Aviation At Oklahoma City

POSTED

DEADLINE

On-Site Security System Testing & Compliance VerificationThe contract titled On-Site Security System Testing & Compliance Verification requires the performance of scheduled functional testing on security alarm components to ensure operational integrity and adherence to federal standards. Tasks include verifying system functionality, documenting test results, and providing support necessary for annual certification. All work must be conducted on-site at the specified location in Salem, with a zip code of 01970, and must meet rigorous compliance benchmarks tied to federal requirements for security systems. The contractor is expected to deliver thorough and accurate records to facilitate regulatory certification. This is a subcontract under NAICS code 541330, posted by the Department of the Interior through its office Ner Services Mabo (43000). The solicitation opened on July 25, 2026, with a deadline for responses set for August 7, 2026, at 2:00 PM. No set-aside classification is designated, and the contract is not associated with a specific point of contact or additional office address beyond the place of performance. All work must be completed in accordance with the stated federal compliance framework and submitted for certification purposes within the contractual obligations.

Ner Services Mabo (43000)

POSTED

DEADLINE

Generator Condition Assessment & ReportingThe contract requires comprehensive assessments of generator systems to ensure operational readiness and compliance, encompassing load bank testing to verify performance under simulated full-demand conditions, emissions evaluations to meet environmental standards, and detailed fuel quality analyses to detect contamination or degradation that could compromise system reliability. All findings and test results must be compiled into formal technical reports and submitted electronically via email, with copies retained for audit purposes to support accountability and regulatory compliance. The work is scoped as a subcontract under NAICS code 541330, which pertains to engineering services, and is issued by the Texas Department of Public Safety with a response deadline of August 14, 2026. The assessment activities are critical for maintaining emergency power infrastructure and must be performed to a high standard of technical accuracy and documentation rigor.

Department of Public Safety

POSTED

DEADLINE

Diagnostic and Troubleshooting Services for Water Treatment EquipmentThe contract awards services to perform up to three diagnostic evaluations aimed at identifying malfunctions within a water treatment system. Each evaluation includes comprehensive testing, root cause analysis, and detailed reporting to ensure accurate identification and documentation of system failures. The work is focused on ensuring operational integrity and compliance with water treatment standards, with all activities to be conducted at a designated location in Fresno. This is a subcontract under the NAICS code 541330, categorized as a professional, scientific, and technical service. The solicitation was posted on July 25, 2026, with responses due by August 11, 2026, at 10:00 PM Pacific Time. The contracting agency is the California Department of Fish & Wildlife, operating under the state of California, and the work is intended to support water infrastructure reliability within the state’s environmental management framework.

California Department of Fish & Wildlife

POSTED

DEADLINE

MEP Engineering ServicesTexas Southern University is seeking qualified subcontractors to provide MEP engineering services for the design and integration of HVAC, electrical, plumbing, and fire alarm systems within renovated study rooms. The project requires seamless coordination across all disciplines to ensure functional, code-compliant, and efficient building systems that support the academic environment. The contract is open for responses until August 18, 2026, with work to be performed on campus at the university’s location. The solicitation falls under NAICS code 541330, classifying it as architectural and engineering services, and is structured as a subcontract opportunity through the Texas SmartBuy procurement portal. Bidders must demonstrate expertise in multi-system integration and experience with institutional facility upgrades, though no specific set-aside provisions apply. All proposals must align with the university’s operational standards and technical requirements for renovated study spaces.

Texas Southern University

POSTED

DEADLINE

Airport Master Planning & Capital Improvement Plan (CIP) DevelopmentThe City of Swainsboro is seeking a contractor to develop and maintain a comprehensive airport master plan that aligns with a five-year Capital Improvement Plan, encompassing detailed forecasts, facility layout designs, environmental evaluations, and funding strategies to support long-term airport growth and operational efficiency. This subcontract requires expertise in aviation planning, regulatory compliance, and financial modeling to ensure the plan meets federal, state, and local standards while addressing current and future aviation needs. The contract is open for submission until August 13, 2026, under the NAICS code 541330 for architectural, engineering, and related services. Performance of the work is expected to take place in Georgia, though specific location details are not provided. The solicitation is issued under the state’s government procurement system and does not specify set-aside status or point of contact information. Interested parties must respond by the deadline to be considered for award.

City of Swainsboro

POSTED

DEADLINE

PROFESSIONAL ON-CALL AIRPORT PLANNING SERVICES FOR EAST GEORGIA REGIONAL AIRPORTThe City of Swainsboro is soliciting proposals for professional on-call airport planning services to support the Airport Capital Improvement Plan at East Georgia Regional Airport. The contract seeks a qualified aviation consulting firm to provide expert planning, design, and technical advisory services as needed over the term of the agreement, ensuring alignment with federal, state, and local aviation standards. All work will be performed in Georgia and is intended to enhance the airport’s infrastructure, operations, and long-term development goals. Proposals must be submitted by August 13, 2026, and the solicitation number is PE-66723-NONST-2026-000000019. The contracting authority is the City of Swainsboro, with Jerry Cadle of Cadle Law Firm serving as the primary point of contact for inquiries, reachable via email at Jerry@cadlelawfirm.com. This is a state and local government procurement under the SLED category, and while no specific set-aside or NAICS code is listed, the solicitation is open to qualified firms with demonstrated experience in airport planning and capital improvement projects.

City of Swainsboro

POSTED

DEADLINE

Geographic Information Systems (GIS) and Data VisualizationThe contract seeks qualified vendors to develop interactive maps, spatial analyses, and data dashboards aimed at enhancing planning, resilience, and infrastructure decision-making for the Coastal Bend Council of Governments in Texas. The work will center on leveraging Geographic Information Systems (GIS) and advanced data visualization techniques to translate complex geospatial data into actionable insights for public and infrastructure stakeholders. Deliverables must support informed decision-making through intuitive, user-friendly interfaces that enable real-time exploration of environmental, demographic, and infrastructure patterns. Subcontractors must respond by August 31, 2026, under the NAICS code 541330 for geographic information systems and related services. The solicitation is open to eligible parties through the Texas SmartBuy portal, with no set-aside designation specified. Performance is expected to occur within the Coastal Bend region, though exact location details are not provided. All proposals should demonstrate technical expertise in GIS development, data integration, and dashboard design, with an emphasis on practical application in community resilience and infrastructure planning contexts.

COASTAL BEND COUNCIL OF GOVERNMENTS

POSTED

DEADLINE

in about 1 month

Infrastructure Planning and Feasibility StudiesThe contract seeks qualified firms to perform planning-level engineering and feasibility assessments for critical infrastructure projects including water, wastewater, transportation, and broadband systems in underserved communities across Texas. The work involves evaluating technical viability, funding potential, environmental impacts, and community needs to support informed decision-making and future project development. These assessments are designed to identify viable pathways for infrastructure expansion and improvement where existing resources are limited or inadequate. The opportunity is structured as a subcontract under NAICS code 541330, indicating a focus on architectural, engineering, and related services. Interested parties must submit proposals by August 31, 2026, with the posting date listed as July 24, 2026. While no specific geographic boundaries or set-aside provisions are stated, the project is being managed by the Coastal Bend Council of Governments, suggesting a regional emphasis on the South Texas coastal region. All work is expected to align with state and federal objectives for equitable infrastructure investment, and contractors must demonstrate expertise in multidisciplinary planning across the four specified infrastructure domains.

COASTAL BEND COUNCIL OF GOVERNMENTS

POSTED

DEADLINE

in about 1 month

On-Call Planning, Resilience, and Community Development ServicesThe Coastal Bend Council of Governments is seeking qualified firms and multidisciplinary consultant teams to provide on-call planning, resilience, community development, housing, economic development, infrastructure planning, and related professional services under an Indefinite Delivery/Indefinite Quantity (IDIQ) contract. This solicitation, numbered 2026-0724, is open for Statements of Qualifications through August 31, 2026, with proposals due in three hard copies and one electronic copy on a USB drive to the agency’s Corpus Christi office. Evaluation is strictly qualifications-based, emphasizing relevant experience (30 points), qualifications of the project team (25 points), technical approach (20 points), experience with rural and coastal communities (15 points), and capacity and availability (10 points), totaling 100 points; pricing is not considered during selection and will be negotiated per task order after award. The initial task order is expected to be the development of a Comprehensive Plan for the City of Refugio, with future work potentially extending to other municipalities, counties, special districts, and federally or state-funded initiatives supported by agencies such as FEMA, GLO, TxDOT, EPA, USDA, and EDA. The contract has a three-year base term with two optional one-year renewal periods, capped at a total value of $1,000,000 across all task orders, with no minimum work guaranteed. Firms must demonstrate current workload capacity, submit detailed resumes of proposed key personnel, include an organizational chart, and provide references from three prior clients. The selection process allows CBCOG to award contracts to one or more firms, and the agency retains full discretion to issue, modify, or cancel task orders as funding becomes available. No federal compliance certifications such as UEI, CAGE, or socioeconomic status declarations are required, aligning the procurement with state and local qualifications-based methods rather than federal acquisition regulations. Delivery of services must occur within the Coastal Bend region of Texas, with all deliverables—including comprehensive plans, resilience strategies, housing assessments, GIS analyses, and public engagement materials—subject to quality control procedures defined by the offeror and evaluated for technical merit.

COASTAL BEND COUNCIL OF GOVERNMENTS

POSTED

DEADLINE

in about 1 month

Thermal Imaging and Predictive Maintenance InspectionsThis contract requires the performance of infrared thermography inspections on uninterruptible power supply components and associated electrical connections to identify thermal anomalies such as hot spots, loose connections, or deteriorating components before they lead to system failures. The work is part of a predictive maintenance initiative aimed at enhancing reliability and preventing unexpected outages in critical infrastructure. The task involves systematic scanning and documentation of electrical systems using thermal imaging technology to detect anomalies that are not visible through conventional inspection methods, ensuring timely intervention and reducing the risk of costly downtime. The contract, titled Thermal Imaging and Predictive Maintenance Inspections, is classified as a subcontract under NAICS code 541330 and was posted on July 24, 2026 with a response deadline of August 18, 2026. It is being managed by the Office of Emergency Services in California, and the place of performance does not specify a particular city or ZIP code, indicating potential work across multiple locations within the state. The solicitation does not include a set-aside designation, and while the point of contact details are not provided, interested parties are directed to the California eProcurement portal for further information and submission requirements.

Office of Emergency Services

POSTED

DEADLINE