NAICS 332813 Quarterly Industry Report
Electroplating, Plating, Polishing, Anodizing, and Coloring
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 332813Sector: 33Updated: Q1 2026
About This Report
This report covers NAICS 332813 (Electroplating, Plating, Polishing, Anodizing, and Coloring) compiled by Fair Market Value using data from the U.S. Census Bureau[5] and Bureau of Labor Statistics[7]. Industry association information from the National Association for Surface Finishing[6] supplements government data. This report is updated quarterly as new statistical releases become available. Additional data is drawn from SBA[8].. NAICS 332813 analysis covers establishment counts, employment patterns, and competitive structure.
Industry Snapshot
Key metrics for the electroplating, plating, polishing, anodizing, and coloring industry.
Industry Definition & Overview
Electroplating, Plating, Polishing, Anodizing, and Coloring (NAICS 332813) encompasses establishments engaged in electroplating, anodizing, and coloring metals, as well as polishing metal surfaces for commercial purposes. These operations apply metallic coatings and treatments to metal and plastic products for protection and decoration. Examples include chromium plating, zinc plating, copper plating, nickel plating, and cadmium coating applications. Metal finishing transforms raw components into parts with improved durability.
Per the Census Bureau 2022 NAICS classification[5], NAICS 332813 falls within Industry Group 3328 (Coating, Engraving, Heat Treating, and Allied Activities). Establishments operate on a job-order basis, processing materials owned by customers or performing contract services. Surface treatment processes require specialized technical expertise and equipment, including chemical bath management, power supply systems, and wastewater treatment infrastructure. Environmental compliance costs represent a major operating expense.
The National Association for Surface Finishing (NASF)[6] represents industry interests and provides technical education on coating processes and safety standards. Competitive advantages derive from process capability, quality control certifications, and turnaround time. Electroplating shops range from small operations with a handful of employees to mid-sized facilities serving automotive OEM supply chains. Worker safety requires strict protocols for handling hexavalent chromium, cyanide solutions, and other hazardous chemicals used in plating baths. Per Bureau of Labor Statistics data[7], employment in the coating and finishing subsector spans multiple occupational categories including production workers, quality inspectors, and environmental compliance staff.
What's Included in This Industry
- Electroplating services including chromium, zinc, nickel, and copper plating
- Anodizing of aluminum and other metals for corrosion resistance
- Polishing and buffing metal surfaces to specification
- Metal coloring and color coating applications
- Cadmium coating and protective plating services
- Hot-dip plating and immersion coating operations
- Barrel plating for high-volume small parts
- Rack plating for large or complex components
- Precious metal plating including gold and silver
- Passivation and chemical conversion coating
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Subsector | Fabricated Metal Product Manufacturing | 332 |
| Industry Group | Coating, Engraving, Heat Treating, and Allied Activities | 3328 |
| NAICS Industry | Coating, Engraving, Heat Treating, and Allied Activities | 33281 |
| National Industry | Electroplating, Plating, Polishing, Anodizing, and Coloring | 332813 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 332811 | Metal Heat Treating | Metal Heat Treating provides thermal processing services (annealing, tempering, hardening) that alter metallurgical properties, while NAICS 332813 applies surface coatings through electrochemical processes without changing core material properties. |
| 332812 | Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers | Metal Coating, Engraving, and Allied Services covers mechanical and chemical coating methods such as galvanizing and powder coating, while NAICS 332813 focuses specifically on electrochemical plating and anodizing processes. |
| 332710 | Machine Shops | Machine Shops provide precision machining services that often precede electroplating in the manufacturing sequence, with machined components sent to plating shops for surface finishing before assembly. |
| 332722 | Bolt, Nut, Screw, Rivet, and Washer Manufacturing | Bolt, Nut, Screw, Rivet, and Washer Manufacturing produces fastener products that frequently require electroplating for corrosion protection, representing a consistent source of contract plating work. |
| 331313 | Alumina Refining and Primary Aluminum Production | Alumina Refining and Primary Aluminum Production provides aluminum substrates that undergo anodizing within NAICS 332813, connecting primary metals production to downstream surface finishing operations. |
| 336110 | Automobile and Light Duty Motor Vehicle Manufacturing | Automobile and Light Duty Motor Vehicle Manufacturing generates demand for electroplated decorative trim, functional coatings on engine components, and corrosion-resistant fastener finishes throughout automotive supply chains. |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | California | 15.7% | 313 |
| 2 | Illinois | 8.2% | 163 |
| 3 | Ohio | 7.4% | 147 |
| 4 | Michigan | 7.2% | 144 |
| 5 | Texas | 6.1% | 122 |
| 6 | Pennsylvania | 4.5% | 89 |
| 7 | Indiana | 3.9% | 77 |
| 8 | Wisconsin | 3.7% | 74 |
| 9 | New York | 3.5% | 69 |
| 10 | Florida | 3.3% | 66 |
% Of Establishments
0%
16%
Source: County Business Patterns, U.S. Census Bureau[3]
SBA Lending Summary
200
Total SBA Loans
$139.3M
Total Loan Volume
$697K
Average Loan Size
10 yrs
Average Loan Term
10.33%
Average Interest Rate
2,640
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[4]
Key Insight: The SBA size standard for NAICS 332813 is 500 employees[9]. Businesses meeting this threshold qualify as small businesses for federal contracting and SBA loan programs. Electroplating shops can access SBA 7(a) loans[10] for equipment, working capital, and environmental compliance upgrades. The capital requirements for plating equipment, chemical management systems, and wastewater treatment make SBA financing relevant for both new entrants and existing operators expanding capacity. Additionally, 504/CDC loans[11] provide long-term, fixed-rate financing for major fixed assets such as real estate and equipment.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | Pathward National Association | 8 | $40.0M | $5.0M |
| 2 | U.S. Bank, National Association | 24 | $24.9M | $1.0M |
| 3 | First Internet Bank of Indiana | 16 | $24.1M | $1.5M |
| 4 | Live Oak Banking Company | 8 | $12.8M | $1.6M |
| 5 | Evolve Bank and Trust | 8 | $7.5M | $943K |
Frequently Asked Questions
Common questions about this industry.
What types of businesses are classified under NAICS 332813?
NAICS 332813 includes electroplating job shops, anodizing specialists, metal polishing operations, and precious metal plating services. These businesses primarily serve manufacturing firms on a contract basis, applying metallic coatings and surface treatments to customer-owned materials. Shops range from small operations with under 10 employees to mid-sized facilities with 100+ workers serving automotive OEM supply chains.
How is NAICS 332813 structured within the manufacturing sector?
NAICS 332813 falls within Industry Group 3328 (Coating, Engraving, Heat Treating, and Allied Activities), part of Subsector 332 (Fabricated Metal Product Manufacturing). Per the Census Bureau[5], this classification covers electrochemical surface treatments, distinguished from mechanical coating (332812) and thermal processing (332811).
What is the SBA size standard for NAICS 332813?
The SBA size standard for NAICS 332813 is 500 employees[9]. Businesses with 500 or fewer average employees over 24 months qualify as small businesses for federal contracting and SBA loan programs.
How does NAICS 332813 differ from related finishing codes?
NAICS 332813 focuses on electrochemical processes (electroplating, anodizing, polishing). NAICS 332812 covers mechanical and chemical coating (painting, galvanizing, powder coating). Many 332811 covers thermal processing (heat treating, tempering, brazing). Each classification represents distinct process technologies applied to metal components.
What industries are major customers for electroplating services?
Primary customers include automotive parts manufacturers, aerospace component producers, electronics manufacturers, fastener companies, and industrial equipment makers. Per BLS occupational data[7], the coating and finishing subsector serves manufacturing supply chains across multiple end markets.
What specific activities are included in NAICS 332813?
Included activities are electroplating (chromium, zinc, copper, nickel, cadmium, gold, silver), anodizing, metal polishing, buffing, metal coloring, passivation, chemical conversion coating, barrel plating, rack plating, and hot-dip plating. These processes apply to metals and sometimes plastics for protection, decoration, and functional enhancement.
Are electroplating businesses eligible for SBA loans?
Yes, electroplating businesses meeting the 500-employee size standard qualify for SBA 7(a) loans[10] and 504 loans. Environmental compliance equipment, plating line upgrades, and wastewater treatment systems are common uses of SBA-backed financing in this industry.
Where are electroplating operations geographically concentrated?
Electroplating establishments cluster near manufacturing hubs. Per BLS data[12], Midwest states (Michigan, Ohio, Indiana, Illinois) maintain the highest concentrations of production occupations and metal finishing operations. Aerospace-driven plating shops also cluster near aircraft manufacturing centers in the South and West.
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]Census Bureau 2022 NAICS classification census.gov
- [6]National Association for Surface Finishing (NASF) nasf.org
- [7]Bureau of Labor Statistics data bls.gov
- [8]SBA sba.gov
- [9]SBA size standard for NAICS 332813 is 500 employees sba.gov
- [10]SBA 7(a) loans sba.gov
- [11]504/CDC loans sba.gov
- [12]BLS data bls.gov
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