NAICS 334513 Quarterly Industry Report
Instruments and Related Products Manufacturing for Measuring, Displayi
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 334513Sector: 33Updated: Q1 2026
About This Report
This Fair Market Value industry report for NAICS 334513 draws on verified data from the U.S. Census Bureau[6], Bureau of Labor Statistics[7], and the Small Business Administration[8]. Our research team analyzes establishment counts, employment figures, and SBA eligibility criteria specific to industrial process instrumentation manufacturing. Reports are updated quarterly to reflect current Census data and regulatory developments.
Industry Snapshot
Key metrics for the instruments and related products manufacturing for measuring, displayi industry.
Industry Definition & Overview
Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (NAICS 334513) encompasses establishments primarily engaged in manufacturing instruments and devices for measuring, displaying, indicating, recording, transmitting, and controlling industrial process variables. Products include pressure gauges, temperature transmitters, flow meters, level indicators, gas analyzers, pH meters, viscosity instruments, and distributed control systems. The U.S. Census Bureau[5] separates this code from environmental controls for buildings (334512) and from electrical testing instruments (334515).
Census data[6] identifies approximately 765 businesses with total employment of roughly 34,100 workers. Process instrumentation serves capital-intensive industries including oil and gas refining, chemical processing, pharmaceutical manufacturing, power generation, water treatment, and food production. Instruments must withstand harsh operating environments with exposure to high temperatures, corrosive chemicals, high pressures, and explosive atmospheres requiring intrinsically safe electrical designs.
Manufacturing requires precision machining, sensor fabrication, electronic assembly, and software development capabilities within a single organization. Calibration laboratories traceable to NIST standards represent a core infrastructure requirement. Product life cycles in process industries often extend beyond 20 years, creating sustained aftermarket revenue streams through spare parts, recalibration services, and technology upgrades across installed base equipment at refineries, chemical plants, and utilities worldwide. Safety instrumented systems meeting IEC 61508 and IEC 61511 functional safety standards represent a growing product category driven by regulatory compliance requirements.
What's Included in This Industry
- Pressure gauge and transmitter manufacturing
- Temperature measurement instrument production
- Flow meter and flow measurement device manufacturing
- Level indicator and level transmitter production
- Gas analyzer and composition measurement manufacturing
- pH and conductivity instrument production
- Distributed control system (DCS) manufacturing
- Process recorder and data logger production
- Combustion analyzer manufacturing
- Viscosity and density measurement instrument production
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Subsector | Computer and Electronic Product Manufacturing | 334 |
| Industry Group | Navigational, Measuring, Electromedical, and Control Instruments Manufacturing | 3345 |
| NAICS Industry | Navigational, Measuring, Electromedical, and Control Instruments Manufacturing | 33451 |
| National Industry | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 334513 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 334512 | Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use | Manufactures environmental controls for residential and commercial buildings rather than the industrial process measurement and control instruments classified under this code |
| 334515 | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | Produces instruments for measuring and testing electricity and electrical signals, classified separately from industrial process variable measurement devices |
| 334516 | Analytical Laboratory Instrument Manufacturing | Manufactures analytical laboratory instruments for sample analysis rather than continuous process monitoring instruments designed for factory installation |
| 334514 | Totalizing Fluid Meter and Counting Device Manufacturing | Produces totalizing fluid meters and counting devices for utility billing rather than the industrial flow measurement instruments covered by this classification |
| 334519 | Other Measuring and Controlling Device Manufacturing | Manufactures other measuring and controlling devices not specifically classified under industrial process, electrical, or environmental control categories |
| 334511 | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | Produces search, navigation, and guidance instruments sharing precision sensor technology but serving defense and aerospace rather than industrial process applications |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | California | 12.9% | 107 |
| 2 | Texas | 11.6% | 96 |
| 3 | Ohio | 6.7% | 55 |
| 4 | Pennsylvania | 5.3% | 44 |
| 5 | Florida | 5.2% | 43 |
| 6 | New York | 4.8% | 40 |
| 7 | Michigan | 4.6% | 38 |
| 8 | Illinois | 4.2% | 35 |
| 9 | Massachusetts | 3.9% | 32 |
| 10 | Minnesota | 2.9% | 24 |
% Of Establishments
0%
13%
Source: County Business Patterns, U.S. Census Bureau[3]
SBA Lending Summary
128
Total SBA Loans
$156.0M
Total Loan Volume
$1.2M
Average Loan Size
12 yrs
Average Loan Term
9.58%
Average Interest Rate
1,152
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[4]
Key Insight: The SBA[8] sets the size standard for NAICS 334513 at 750 employees. This threshold reflects the moderate workforce scale needed for precision instrument manufacturing combining machining, electronics, and software engineering. Qualified small businesses access federal set-aside contracts for process instrumentation in government-operated refineries, power plants, and water treatment facilities. The SBA's lending programs[9] support investment in calibration laboratories and testing infrastructure required for certified instrument production. Eligible businesses can access SBA 7(a) loans[10] for working capital, equipment, and acquisition financing, while 504 loans[11] support major fixed-asset purchases including real estate and heavy machinery.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | Bank of America, National Association | 16 | $41.2M | $2.6M |
| 2 | First Bank of the Lake | 16 | $40.0M | $2.5M |
| 3 | Regions Bank | 8 | $35.3M | $4.4M |
| 4 | Wells Fargo Bank National Association | 8 | $19.4M | $2.4M |
| 5 | KeyBank National Association | 16 | $8.0M | $500K |
Frequently Asked Questions
Common questions about this industry.
What types of businesses are classified under NAICS 334513?
Manufacturers of industrial process measurement and control instruments classify here. This includes producers of pressure transmitters, temperature sensors, flow meters, level indicators, gas analyzers, pH instruments, and distributed control systems per the Census Bureau[5] classification.
How is the industrial process instrument industry structured?
Census data[6] identifies roughly 765 businesses employing approximately 34,100 workers. A small number of large multinational instrument companies hold dominant market positions, while hundreds of specialty firms manufacture niche instruments for specific process variables or industry applications.
What is the SBA size standard for NAICS 334513?
The SBA[8] sets the threshold at 750 employees. Businesses with fewer than 750 average employees qualify as small for federal procurement preferences and SBA-backed financing programs including 7(a) and 504 loans.
What NAICS codes are related to industrial process instrument manufacturing?
Related codes include 334512 (Environmental Controls), 334515 (Electrical Test Instruments), 334516 (Analytical Laboratory Instruments), 334514 (Fluid Meters), and 334519 (Other Measuring Devices). The primary boundary separates industrial process measurement from building environmental controls and laboratory analysis instruments.
What industries purchase industrial process instruments?
Oil and gas refineries, chemical plants, pharmaceutical manufacturers, power generation utilities, water treatment facilities, and food processing plants represent the core customer base. Mining operations, pulp and paper mills, and steel producers also maintain large installed bases of process instrumentation for production monitoring and safety systems.
What activities are included in NAICS 334513?
Core activities include manufacturing pressure transmitters, producing temperature measurement devices, building flow meters, fabricating level indicators, assembling gas analyzers, manufacturing pH and conductivity instruments, and producing distributed control system hardware. NIST-traceable calibration and hazardous area certification testing are standard production support activities.
Can industrial process instrument manufacturers qualify for SBA loans?
Yes, firms below 750 employees qualify for SBA lending programs[9]. Precision machining centers, calibration laboratories, environmental testing chambers, and hazardous area certification infrastructure represent capital investments commonly financed through SBA 504 loan structures.
Where are industrial process instrument manufacturers concentrated?
Texas and the Gulf Coast region host major concentrations driven by proximity to petroleum refining and chemical processing customers. Additional clusters exist in the upper Midwest, Mid-Atlantic, and California. International trade flows reflect the global nature of process industry customers who standardize on specific instrument brands across worldwide operations.
Sources & References
Government datasets and editorial sources used in this report.
- [1]U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages bls.gov
- [2]U.S. Census Bureau, Economic Census census.gov
- [3]U.S. Census Bureau, County Business Patterns census.gov
- [4]U.S. Small Business Administration, SBA 7(a) Loan Program Data data.sba.gov
- [5]U.S. Census Bureau census.gov
- [6]Census data data.census.gov
- [7]Bureau of Labor Statistics bls.gov
- [8]Small Business Administration sba.gov
- [9]SBA's lending programs sba.gov
- [10]SBA 7(a) loans sba.gov
- [11]504 loans sba.gov
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