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Custom Software Development Contracts — NAICS 541511

Every listing here is classified under NAICS 541511 (Custom Computer Programming Services), the code the federal government uses for custom software development, application programming, and related coding work. This is the primary NAICS code most software development small businesses register under in SAM.gov.

Data last updated Sep 13, 2026 from SAM.gov.

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Current opportunities (15)

VocBench Support and NALTerms Integration

Agency
AGRICULTURE, DEPARTMENT OF
NAICS
541511
Posted
Sep 11, 2026
Response Due
Sep 18, 2026
Location
MD

This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Part 12. This announcement constitutes the only solicitation. Quotations are being requested and a separate written solicitation will not be issued. Solicitation number 1232SA26Q1461 is issued as a Request for Quotation (RFQ) for VocBench Support and NALTerms Integration consisting of one (1) one-year base period and four (4) one-year option periods and an Optional Item - Professional Services / Development; up to five (5) days in accordance with requirements as outlined in attached Statement of Work (SOW). The total duration of this contract shall not exceed five (5) years.. This acquisition is not set-aside for small business concerns. The applicable North American Industry Classification Standard Code is 541511. The small business size standard is $34.0 Mil. This acquisition is an unrestricted requirement. All responsible sources may submit a quotation which will be considered by the agency.

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Purchase of Mimics Materialise Software

Agency
HEALTH AND HUMAN SERVICES, DEPARTMENT OF
NAICS
541511
Set-Aside
No Set aside used
Posted
Sep 11, 2026
Response Due
Sep 14, 2026
Location
MD

The BETA Center requires 3D image reconstruction software. This software should be capable of rendering 3D images using data from magnetic resonance imagers (MRI) or micro computed tomography (microCT) in order to create a model that can be quantified. It should also enable 3D segmentation and element meshing, which can be used for computation fluid dynamics.

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NISC Enterprise Support Tasking (NEST)

Agency
TRANSPORTATION, DEPARTMENT OF
NAICS
541511
Set-Aside
SBA Certified Women-Owned Small Business (WOSB) Program Set-Aside (FAR 19.15)
Posted
Sep 11, 2026
Response Due
Oct 15, 2026
Location
DC

***THIS OPPORTUNITY IS SET-ASIDE FOR WOMEN-OWNED SMALL BUSINESS (WOSB) CONCERNS*** **A LIVE NIMS DEMONSTRATION WILL OCCUR 09 SEP 2026, SEE L.8 FOR DETAILS** The AJW-2 Directorate, AJW-2131 Implementation Services Group, provides technical, engineering, financial, budget, and management support to Technical Operations programs using the NAS Integration Support Contract (NISC IV Contract) and Technical Support Services Contract (TSSC).These are task order contracts that present contract managers with the task of managing the entire Task Order Management lifecycle, the Financial Management lifecycle encompassing the obligation and de-obligation of funds by integrating with FAA’s financial systems, PRISM and Delphi and the Invoice/Payments lifecycle. The NISC IV contract will also be transitioned to NISC V contract during the award period, which will require a new system to support the NISC V contract, while maintaining the NIMS system to close out the NISC IV contract. This work requires a support contractor that will provide Operations and Maintenance services for the NIMS systems that is used to manage the current NISC IV contract using the existing technology stack and will provide quality assurance and quality control to ensure uninterrupted system availability. In addition, the vendor should maintain and run reports if required from CMIS system that was used to support the NISC III contract and is currently not active. The work also requires the vendor to serve as a Subject Matter Expert (SME) capable of providing design, development, testing, deployment and documentation of the new software that will be required to support the NISC V contract when required. This includes, but is not limited to, making recommendations regarding the selection of software architecture and software development tools that will be required to develop the new system. The Contractor must provide operations and maintenance support for the NIMS/CMIS system, provide quality assurance and quality control, provide security compliance and ensure uninterrupted system availability. This effort also requires the vendor to serve as a SME and provide support with system architecture, software recommendations, system design, development, testing, deployment, and documentation for a new system to support NISC V contract requirements when required. Contractor will maintain NIMS/CMIS security certifications required to operate the software and its associated server hardware. The Contractor must also provide transition support to any potential new vendor at the contract’s end. ***THIS OPPORTUNITY IS SET-ASIDE FOR WOMEN-OWNED SMALL BUSINESS (WOSB) CONCERNS*** **A LIVE NIMS DEMONSTRATION WILL OCCUR 09 SEP 2026, SEE L.8 FOR DETAILS**

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Tactical Data Link (TDL) Interoperability Software

Agency
DEPT OF DEFENSE
NAICS
541511
Set-Aside
No Set aside used
Posted
Sep 11, 2026
Response Due
Oct 10, 2026
Location
VA

Amendment 2; This amendment will add the Government Q&A responses and adds the revised "Combined Synopsis/Solicitation-Amend 2" with changes in Serctions 1.1.2. and 2. Amendment 1: Added the signed Combined Synopsis/Solicitation Original Posting: Air Combat Command's (ACC) mission requires robust Tactical Datalink (TDL) interoperability to improve mission effectiveness for United States Air Force (USAF), Joint, and coalition forces. To support this mission, the Government requires a modern software solution that serves as a relational database and analysis toolset. This toolset is essential for the iSMART (interoperable Systems Management and Requirements Transformation) process and is used to populate, edit, analyze, and manage TDL message data, platform implementations, and interoperability evaluations. The Contractor shall provide an existing commercial off-the-shelf (COTS) software solution, including all necessary licenses, updates, training, and technical support. The software shall provide a comprehensive toolset for managing TDL platform specifications, conducting interoperability analysis, and supporting mission planning across the TDL enterprise. The TDL software solution must meet all requirements as listed in the Attachment 1 - Performance Work Statement.

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82 FSS Automated Student System

Agency
DEPT OF DEFENSE
NAICS
541511
Set-Aside
Small Business Set Aside - Total
Posted
Sep 10, 2026
Response Due
Sep 16, 2026
Location
TX

***AMENDMENT 1*** The purpose of this amendment is to update the NAICS code for this requirement from 334111 (Electronic Computer Manufacturing) to 513210 (Software Publishers). This amendment also includes the vendor questions received and the Government’s responses. The response deadline has not changed and still stands at 14 Sep 2026 by 2:00pm CST. **An incorrect NAICS code of 541511 was used in this amendment and has since been changed to the listed NAICS of 513210** ***************************************************************************************** This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in RFO Part 12, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; excluding amendments. Offers are being requested and a separate written solicitation will not be issued. Solicitation number FA302026Q0087 is issued as a Request for Quotes (RFQ) to provide the creation of an Automated Student Processing System at Sheppard AFB, Texas. See attached SOW for a detailed description and salient characteristics of the commodity sought in this solicitation. The 82d Contracting Squadron of Sheppard AFB, Texas anticipates awarding a single Firm Fixed Price (FFP) contract, consisting of a one‑year base period with four additional one‑year option periods. Notice to Offeror(s)/Supplier(s): Funds are not presently available for this effort. No award will be made under this solicitation until funds are available. The Government reserves the right to cancel this solicitation, either before or after the closing date. In the event the Government cancels this solicitation, the Government has no obligation to reimburse an offeror for any costs. This requirement is set aside for small business concerns. The applicable NAICS code is 334111, and the small business size standard is 1,250 employees. See attached “Combo RFQ” for the RFQ format. All documents including the solicitation, FA302026Q0087, and all amendments to the solicitation are obtainable via this notice. Contractors are strongly cautioned to check this notice periodically for amendments. If any PDF documents do not open in your browser, download them and open in an Adobe PDF reader or compatible program. The solicitation will close at 2:00PM CST on 14 Sep 2026. All solicitations must be submitted via email to the Primary and Alternate contacts listed below: SrA Mason Carl / mason.carl@us.af.mil / 940-676-1604 / Contract Specialist Steven Taylor / Steven.taylor.63@us.af.mil / 940-676-0944 / Contract Officer All questions must be submitted by 2:00 PM CST on 9 Sep 2026. All questions MUST be submitted in writing to the Primary and Alternate contacts listed above as well.

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Interactive Liquified Natural Gas (LNG) Training Platform Development

Agency
TRANSPORTATION, DEPARTMENT OF
NAICS
541511
Set-Aside
No Set aside used
Posted
Sep 9, 2026
Response Due
Sep 28, 2026
Location
DC

Request for Information (RFI) & Sources Sought (pursuant to Federal Acquisition Regulations- Part 5) Interactive Liquified Natural Gas (LNG) Training Platform Development Issued By: Department of Transportation | Pipeline and Hazardous Materials Safety Administration (PHMSA) Date of Issue: September 9, 2026 Response Deadline: September 28, 2026 SIC/Product Service Code: 7373 Computer Integrated Systems NAICS Code: 541511 Custom Computer Programming Services 1. Introduction The Pipeline and Hazardous Materials Safety Administration (PHMSA) is seeking information from interested parties and potential vendors regarding the development of an Interactive LNG Training Platform. The interactive, virtual LNG plant training platform should allow users to perform virtual plant walkdowns, review piping and instrumentation diagrams (P&IDs), and visualize process flows through the internal components of critical machinery (e.g., valves, vessels, pumps, compressors). This RFI is intended for market research purposes only and supports ongoing agency acquisition planning aligned with modern federal procurement principles. 2. Project Background and Goals PHMSA is committed to enhancing the safety and oversight of Liquefied Natural Gas (LNG) facilities. The objective of this project is to create a digital, high-fidelity, and interactive training environment that allows inspectors to simulate complex operational scenarios and safety inspections. Key goals include: Improving technical competency in LNG facility oversight. Utilizing 3D immersive technologies and digital twin capabilities to bridge the gap between classroom and field. Creating a scalable, modular curriculum that evolves with regulatory standards. Maximizing the leverage of commercial solutions and modern cloud infrastructure. 3. Key Information Requested PHMSA requests that interested respondents provide detailed information on the following categories: 3.1 Company Profile & Administrative Information Please complete the following table to assist PHMSA in market research and business size determination: Company Name Unique Entity Identifier (UEI) CAGE Code Socioeconomic Business Size (e.g., SDVOSB, 8(a), WOSB, HUBZone, Small, Large) Point of Contact Information (Name, Email, Phone) [Vendor Name] [12-character UEI] [5-charac ter CAGE] t[Socioeconomic Status] [Name, Email, Phone] Small Business Capacity: If identified as a small business, please state whether your firm possesses the internal capacity and capability to perform as the prime contractor for a project of this scope or if teaming/subcontracting arrangements would be necessary. 3.2 Technical Capabilities & Innovation Describe your firm’s experience in developing high-fidelity 3D simulations or "Digital Twins" for industrial facilities. What hardware and software requirements do you typically recommend for a platform of this scale? Explain your approach to ensuring interactivity and user engagement within a training module. Commerciality & COTS Analysis: To what extent can your proposed solution leverage existing Commercial-Off-The-Shelf (COTS) software components, modular training engines, or commercial 3D/VR frameworks versus requiring custom government-unique software development? 3.3 Content and Curriculum Design How do you approach mapping technical regulatory requirements (e.g., 49 CFR Part 193) into interactive learning objectives? Describe your capability to develop branching scenarios where trainee decisions lead to different safety outcomes. 3.4 Cybersecurity, Hosting & Data Rights Deployment & Cloud Posture: Describe your solution's typical deployment model (e.g., SaaS, FedRAMP-authorized Cloud, On-Premise, Hybrid) and compatibility with federal cybersecurity frameworks (FAR Part 40 / CUI handling). Intellectual Property & Licensing: Describe your standard licensing structure and approach to data rights for custom-developed 3D models, code, and scenario content (e.g., proprietary licensing vs. Government Purpose Rights / Unlimited Rights). 3.5 Past Performance Please provide details on up to three (3) recent projects of similar scope and complexity: Project Title Client Type (Gov/Private) Core Technology Used Year Completed [Project 1] [Gov/Private] [Tech Stack / Engines] [Year] [Project 2] [Gov/Private] [Tech Stack / Engines] [Year] [Project 3] [Gov/Private] [Tech Stack / Engines] [Year] 3.6 Rough Order of Magnitude (ROM) and Timeline Provide a non-binding estimate of the typical timeline for developing a comprehensive training platform with 5–10 high-complexity modules. Outline standard pricing models (e.g., fixed-price development, recurring licensing fees, maintenance, and ongoing support). 4. Submission Instructions & Industry Engagement Responses should be submitted in electronic format to the point of contact listed below. Please limit technical responses to 20 pages, excluding company brochures or supplemental past performance data. Industry Engagement / Vendor Demos: PHMSA may, at its discretion, invite select respondents to participate in virtual demonstrations or technical exchange sessions to further inform agency acquisition planning. USDOT Point of Contact: Loni Chinn Email: loni.chinn@dot.gov 5. Disclaimer: This RFI is issued solely for information and planning purposes. It does not constitute a Request for Proposal (RFP) or a promise to issue an RFP in the future. PHMSA will not pay for any information or administrative costs incurred in response to this RFI.

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SOURCES SOUGHT FOR HSQ MISER SCADA SOFTWARE SYSTEM

Agency
DEPT OF DEFENSE
NAICS
541511
Set-Aside
No Set aside used
Posted
Sep 9, 2026
Response Due
Sep 16, 2026
Location
HI

Synopsis: The Government intends to procure, under only one responsible source, where no other suppliers or service will satisfy the agency requirements. The Naval Facilities Engineering Systems Command, Hawaii (NAVFAC Hawaii) is conducting market research to determine if other potential products/services can provide supervisory control and data acquisition (SCADA) programming labor that has the equal performance and listing/approval requirements as the programming provided by HSQ Technology, 26227 Research Road, Hayward, CA, 94545. The alternate product/service must meet the following requirements/specifications: SCADA Programming: Provide programming to integrate new potable water equipment and sensors into an existing HSQ MISER SCADA software system for remote monitoring, alarming, and controls. Additionally, programming shall include updating all graphics in the existing HSQ MISER SCADA software system to include the new equipment and sensors. This notification is for market research purposes only and should not be construed as a commitment of any kind by the U.S. Government to issue a solicitation, request for proposals, quotes, or invitation of bids or award a contract. Interested parties with a comparable product meeting the requirements described in this announcement are invited to submit complete technical data, information and specifications in order for the Government to conduct an evaluation of your product to ensure compatibility with the existing system. Technical response shall be typed, at least 11 point Times New Roman or larger, single-sided 8.5 by 11 inch pages and submitted in Adobe PDF format. Also, provide company information and point of contract (name, title, email, phone, mailing address). The Government will not reimburse any responder for any costs associated with information submitted in response to this sources sought announcement. Any information provided to the Government in response to this request for information (RFI) will become U.S. Government property and will not be returned. All proprietary or classified information will be treated appropriately. The Government reserves the right to disregard any submittal that is incomplete or vague. Please do not submit your company brochure. Interested parties shall submit information and specifications to Ku’ulei Kamikawa, Contracting Specialist, via email at kuulei.m.kamikawa.civ@us.navy.mil Interested parties responding to this announcement by September 16, 2026 at 12:00 p.m. Hawaii Standard Time will be considered.

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Naval Air Systems Command (NAVAIR) Depot Maintenance System (NDMS) DRAFT Request for Proposal (RFP)

Agency
DEPT OF DEFENSE
NAICS
541511
Set-Aside
No Set aside used
Posted
Sep 3, 2026
Response Due
Oct 5, 2026
Location
MD

DRAFT Request for Proposal N6852026R1003 Commander, Fleet Readiness Centers (COMFRC); Digital Group; Depot Maintenance, Repair and Overhaul (MRO)/Naval Air Systems Command (NAVAIR) Depot Maintenance System (NDMS) is posted within PIEE Solicitation module at the following link: https://piee.eb.mil/sol/xhtml/unauth/search/oppMgmtLink.xhtml?noticeId=N68520-25-RFPREQ-F600000-0074&noticeType=Presolicitation

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AF Product Lifecycle Management

Agency
DEPT OF DEFENSE
NAICS
541511
Posted
Sep 3, 2026
Response Due
Sep 18, 2026
Location
OH

NOTICE TITLE: AMENDMENT 01 – REVISED PERFORMANCE WORK STATEMENT (PWS) & RESPONSE DEADLINE EXTENSION 1. Purpose of Amendment The purpose of this administrative amendment is to: Replace the previously posted draft Performance Work Statement (Attachment 1) with an updated PWS Extend the market research capability statement response deadline to ensure industry has sufficient time to review the updated scope of work. 2. Instructions to Interested Parties New Respondents: Please review the revised Attachment 1 - Performance Work Statement (Rev 1) and submit capability statements in accordance with the original RFI instructions by the updated deadline. Prior Respondents: Vendors who have already submitted capability packages are encouraged to review the revised PWS. If the revised requirements alter your capability assessment or technical approach, you may submit an updated or supplemental response by the revised deadline. If no updates are needed, your prior submission will remain on file. The United States Air Force (USAF) has implemented an Enterprise Product Lifecycle Management (PLM) solution to modernize the management of weapon systems throughout their lifecycle. This initiative aligns with the Air Force's broader strategic goals to integrate capabilities, revolutionize processes, and enable lifecycle digital materiel management. The current PLM implementation leverages Siemens Teamcenter, a Commercial-Off-The-Shelf (COTS) solution hosted within the Cloud One environment, to empower program offices with centralized, secure, and integrated tools for engineering, manufacturing, sustainment, and asset retirement activities. The USAF continues to face significant challenges in fully realizing seamless PLM integration across its enterprise. These challenges include fragmented legacy systems, disconnected data silos, and a lack of uniformity in processes, all of which contribute to inefficiencies, reduced data integrity, and delays in decision-making. Addressing these issues requires innovative solutions that ensure robust configuration management, streamline workflows, and foster enterprise-wide collaboration while adhering to stringent security and compliance standards. The purpose of this Request for Information (RFI) is to gather industry feedback on technical approaches, market capabilities, and innovative solutions to address these challenges. By engaging with vendors, the USAF seeks to achieve a better understanding of the current state of the market, identify potential pathways for enhancing the AF-PLM capability, and refine its requirements for prospective procurements. Vendor responses will play a critical role in shaping acquisition strategies, identifying feasible solutions, and ensuring that the evolving PLM environment aligns with the USAF's operational and strategic needs. This process supports the overarching goal of achieving an authoritative source of truth for product data and enhancing total lifecycle management for USAF weapon systems.

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Sole-Source Justification for My Talking Books (RealSAM) Dialog Licenses

Agency
LIBRARY OF CONGRESS
NAICS
541511
Set-Aside
No Set aside used
Posted
Aug 28, 2026
Response Due
Sep 18, 2026
Location
DC

This is a solicitation forRealSAM Dialog licenses and services required to operate the system in production for the My Talking Book Smart Speaker project, while meeting all IT information-system security requirements as required by the Library of Congress. This is a sole source. A signed J&A was previously posted for this solicitation and referenced herein. This is not open for competition. All other related and pertinant document are attached herein.

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