samsearch
    Platform
    01InfluenceShape the requirement before it's on your competitor's radar.
    Signal
    Recompete window opens in 42 days
    Facilities maintenance IDIQ$8.4M
    Forecast
    Agency spend up 18% next FY
    DoD facilitiesQ3 window
    02CaptureFind and qualify the work across every market.
    Federal91%
    Network engineering support — GSA MAS
    GSA541512
    SLED88%
    Custodial services — Fairfax County Public Schools
    K-12561720
    DIBBS79%
    Aircraft hydraulic fitting — DLA Aviation
    DLANSN 5330
    03AnalyzeExtract requirements and build the compliance matrix.
    Compliance matrix
    L.2.1Technical approachVol I
    L.3.4Staffing planVol I
    M.1Past performanceEvaluated
    SOW breakdown
    Requirements extracted38
    Mapped to Section L/M38
    Every extractionCited
    Ask Sammy
    “Do we meet the small business set-aside?”
    04ManageRun the pursuit through to award.
    Pipeline
    QualifyFacilities support · USACE
    CaptureComms upgrade · DLA
    ProposalShipyard dredging · NAVSEA
    PriyaAlex
    This week
    Submit past performance refsThu
    Confirm subK teamingFri
    Upload SF 33Mon
    05RespondDraft and submit your response.
    Drafting · Volume I
    247 words
    RFI response
    CompanyAcme Robotics LLC
    UEIJK4M8…
    Capability narrativeDrafted
    06FinanceGet paid faster on what you win.
    Capital available
    $2.4M against your award
    Facilities maintenance IDIQAwarded
    Partner matched
    LenderFederal Capital Partners
    Draw available$2.4M
    UnderwritingCleared
    The platform
    Influence
    Capture
    Analyze
    Manage
    Respond
    Finance
    One pipeline, six stages, start to award.
    See the whole platform
    Solutions
    By industry
    Tech & softwareSoftware and SaaS companies entering GovCon.Defense contractorsPrimes and subs in the defense industrial base.ConstructionBuilders bidding federal, state, and local work.CybersecuritySecurity vendors pursuing federal mandates.
    By team
    Capture managers & BDPipeline, qualification, and win strategy.Proposal teamsCompliance matrices and proposal drafting.Subcontractors & primesTeaming, subcontracting, and partner fit.
    By company size
    Small businessesSet-aside and small business contractors.EnterpriseLarge contractors running multiple pursuits.ConsultantsAdvisors and capture consultants.
    Browse all industries
    CustomersPricing
    ResourcesNew
    Learn
    AcademyCourses, guides, and playbooks.WebinarsLive sessions and recordings.DocsProduct documentation and setup guides.Implementation planOperational rollout guidance.
    Tools & data
    Free GovCon toolsCalculators, lookups, and more.Gov ExploreContracts, agencies, and NAICS codes.GovCon eventsConferences, training, and set-aside events.
    Latest blogIntroducing the New SamSearch: The Operating System for Government ContractingSamSearch has a new brand, a new site, and a new way of explaining what the platform actually does — the operating system for government contracting, organized around six stages instead of a single search box. Here's what changed and why.Read the post →
    All resources and tools
    Sign inRequest a demo
    ← Back to NAICS AI Search

    33451 - Navigational, Measuring, Electromedical, and Control Instruments Manufacturing

    Navigational technology, precision measurement, state-of-the-art medical devices, and precise control instruments – these are the critical products driving innovation in many industries today. If you’re involved in producing any of these technologies, then NAICS code 33451 is central to your business classification. Understanding this sector can help manufacturers, government contractors, and suppliers align their products and services for maximum market impact.

    What is NAICS Code 33451?

    NAICS code 33451 defines the industry sector known as Navigational, Measuring, Electromedical, and Control Instruments Manufacturing. This code encompasses establishments primarily engaged in the production of a broad range of highly technical instruments and equipment used for:

    • Navigation
    • Measurement
    • Control processes
    • Electromedical applications

    These instruments are vital across multiple industries including aerospace, healthcare, maritime, environmental monitoring, and manufacturing automation.

    Sector Overview

    • Sector: Manufacturing
    • This industry is part of the broader manufacturing sector focused on technology-driven product development and precision engineering.
    • Businesses under NAICS 33451 combine advanced electronics, mechanics, and software systems to produce devices that facilitate critical operations.

    Typical Business Activities under NAICS 33451

    Companies classified under NAICS 33451 typically engage in the:

    • Manufacture of navigational instruments such as GPS devices, compasses, sonar equipment, and inertial navigation systems.
    • Production of measuring instruments including flow meters, pressure gauges, thermometers, and gas analyzers for various industrial and commercial applications.
    • Manufacture of electromedical equipment like MRI machines, ultrasound devices, electrocardiographs, and other diagnostic and therapeutic medical instrumentation.
    • Development of control instruments utilized in automation, robotics, and process control such as controllers for industrial machinery, programmable logic controllers (PLCs), and sensor devices.

    NAICS Code 33451 Size Standards for Eligibility

    For small business size classification under NAICS 33451, the SBA (Small Business Administration) typically sets the size standard based on annual receipts or number of employees. The current standards are:

    • Maximum employee size: 1,250 employees
    • Alternatively, some specific subcategories may have different thresholds, but generally, businesses with 1,250 or fewer employees qualify as small businesses.

    Understanding size standards is crucial for businesses seeking federal contracts and government procurement opportunities.

    Examples of Businesses Under NAICS 33451

    • Manufacturers producing GPS navigation devices for aviation and maritime sectors
    • Firms creating precision flow meters used in oil and gas processing plants
    • Companies developing MRI and CT scan machines for hospitals and diagnostic centers
    • Businesses designing automated industrial controllers for factory machinery
    • Producers of pressure gauges and environmental sensors for climate monitoring

    NAICS Code 33451 Details Table

    Attribute Description
    NAICS Code 33451
    Title Navigational, Measuring, Electromedical, and Control Instruments Manufacturing
    Sector Manufacturing
    Industry Description Manufacturing instruments and related products used for navigation, measurement, control, and electromedical purposes
    Typical Products GPS devices, compasses, flow meters, pressure gauges, MRI machines, ultrasound devices, PLCs
    Size Standard 1,250 employees or less
    Primary Customers Aerospace, healthcare, manufacturing, maritime, environmental agencies

    Frequently Asked Questions (FAQ)

    What products are included under NAICS 33451?

    This code includes navigational instruments (e.g., GPS units), measuring instruments (e.g., pressure gauges), electromedical devices (e.g., MRI machines), and control instruments (e.g., industrial controllers).

    Can my business qualify as a small business under NAICS 33451?

    Yes, if your business has 1,250 or fewer employees, it typically qualifies as a small business under this NAICS code for contract and procurement purposes.

    What industries rely on products from NAICS 33451?

    Key industries include aerospace, healthcare, manufacturing automation, maritime navigation, environmental monitoring, and defense sectors.

    How can knowledge of NAICS 33451 help my government contracting efforts?

    Recognizing your NAICS classification helps in targeting contracts, understanding eligibility for subcontracting opportunities, and marketing your products effectively to federal agencies.


    Navigational, measuring, electromedical, and control instruments are at the core of today's high-tech manufacturing landscape. Knowing all about NAICS code 33451 can help businesses position themselves strategically within this vital industry sector.

    Whether you’re a manufacturer or supplier, leveraging this knowledge will open doors to greater government contracting opportunities and industry partnerships.


    Optimize your business opportunities by aligning with NAICS 33451 today.

    View Active Opportunities for NAICS 33451

    See current federal, state, and local government contracts using this NAICS code.

    Browse 33451 Opportunities →
    ← Back to NAICS Browser

    Explore More NAICS Codes:

    • 62142 - Outpatient Mental Health and Substance Abuse Centers
    • 114119 - Other Marine Fishing
    • 333618 - Other Engine Equipment Manufacturing
    • 32522 - Artificial and Synthetic Fibers and Filaments Manufacturing
    • 423720 - Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers

    What Our Customers Say

    Join hundreds of government contractors who have transformed their business with SamSearch

    “SamSearch has been a lifesaver for our business. As a govCon consultant helping small businesses win contracts, this tool is all I need to find the right requirements at every level of government. After experimenting with the product, I've discovered features I didn't even know existed. It's affordable, and it's the best on the market.”
    NikkiCEO, TSBA | Ex US Navy and US Air Force
    “I was blown away by the 2.0 update. I didn't think they could improve the platform any further, but they did. It's more user-friendly and efficient than ever before.”
    Bobby HughesBusiness Owner, BH Consulting LLC
    “I'm a strategy and growth consultant helping small businesses break into SLED and grow. With 25 years in the AEC industry (BD, marketing, proposals) and APMP certification, I left corporate consulting to start my own firm. This tool is a game changer.”
    Amanda CerchiaraStrategy & Growth Consultant, Independent
    “Best way to find Government Contracts.”
    Jonathan SeifertDirector of Partnerships, Easy Llama
    “We use the software and it's been great! All of our government contracting operations are through SamSearch.”
    Jennifer RosiekFounder & CEO, APB Services
    “It keeps me engaged and interested in what I'm looking for, unlike the cumbersome process on other platforms.”
    Andrew RiceSenior Oversight @ Lyft and Partner & Vice President, Groundbreaking Construction

    Close More Government Opportunities Today

    Get Started Now
    samsearch

    The Complete AI Platform for Government Contracting

    Platform
    • Product
    • Pricing
    • ROI calculator
    • Integrations
    • Changelog
    Solutions
    • Solutions
    • Customers
    • Comparisons
    • Market watch
    Resources
    • Blog
    • Free GovCon tools
    • Glossary
    • Docs
    Company
    • API & partnerships
    • Careers
    • Support
    • Compliance
    • Trust centre
    • Contact
    Recognised & verified
    SOC 2 Type II Compliant, SamSearchAWS Partner - Advanced, SamSearch on AWS MarketplaceGartner Peer Insights Customer First, SamSearch
    Ask AI about samsearch
    Ask ChatGPTAsk ClaudeAsk Perplexity
    Follow

    © 2026 samsearch. All rights reserved.

    Terms of usePrivacy policy