NAICS 335929 Quarterly Industry Report
Other Communication and Energy Wire Manufacturing
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 335929Sector: 33Updated: Q1 2026
About This Report
This Fair Market Value industry report for NAICS 335929 draws on verified data from the U.S. Census Bureau[5], Bureau of Labor Statistics[6], and the Small Business Administration[7]. Our research team compiles establishment counts, employment data, and SBA eligibility criteria specific to other communication and energy wire manufacturing. Reports are updated quarterly to reflect new Census releases and regulatory changes.
Industry Snapshot
Key metrics for the other communication and energy wire manufacturing industry.
Industry Definition & Overview
Other Communication and Energy Wire Manufacturing (NAICS 335929) encompasses establishments primarily engaged in manufacturing insulated wire and cable of nonferrous metals from purchased wire. Products include copper telecommunications cable, power distribution and transmission cable, building wire and Romex-type residential wiring, control and instrumentation cable, welding cable, and specialty wire for automotive and appliance use applications. The U.S. Census Bureau[5] classifies this industry under communication and energy wire and cable manufacturing, separate from the fiber optic cable code.
Roughly 84 active businesses employ an estimated 17,400 workers in this industry. Despite the modest establishment count, total employment reflects the large production volumes and continuous process manufacturing required for building wire and power cable production. Copper conductor drawing, insulation extrusion, cabling, and jacketing operations run continuously on high-speed production lines. Building wire alone represents the largest product segment by volume, with residential and commercial construction driving demand for NM-B (Romex), THHN/THWN, and MC cable types.
Raw material costs dominate production economics; copper represents 60 to 70 percent of finished wire and cable cost, making producers highly sensitive to London Metal Exchange copper pricing. Aluminum conductor cable serves as a cost-effective alternative for service entrance, feeder, and utility distribution applications. Polyvinyl chloride, cross-linked polyethylene, and ethylene propylene rubber serve as primary insulation and jacketing materials. UL safety listing and NEC code compliance requirements govern product design for building wire, while ICEA and AEIC standards apply to medium and high-voltage power cable. Buy American provisions in federal infrastructure spending legislation affect procurement decisions for utility and public works cable installations.
What's Included in This Industry
- Building wire and Romex manufacturing
- Power distribution cable production
- Copper telecommunications cable manufacturing
- Control and instrumentation cable production
- Automotive wiring harness cable manufacturing
- Welding cable production
- Medium-voltage power cable manufacturing
- Aluminum conductor cable production
- Appliance wire and cord set manufacturing
- Underground utility cable production
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Subsector | Electrical Equipment, Appliance, and Component Manufacturing | 335 |
| Industry Group | Other Electrical Equipment and Component Manufacturing | 3359 |
| NAICS Industry | Communication and Energy Wire and Cable Manufacturing | 33592 |
| National Industry | Other Communication and Energy Wire Manufacturing | 335929 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 335921 | Fiber Optic Cable Manufacturing | Manufactures fiber optic cable from purchased optical strand rather than the copper and aluminum conductor wire and cable products produced in this classification |
| 331420 | Copper Rolling, Drawing, Extruding, and Alloying | Produces uninsulated copper wire through rolling, drawing, and extruding operations classified separately from the insulated wire and cable manufactured here from purchased wire |
| 335931 | Current-Carrying Wiring Device Manufacturing | Manufactures current-carrying wiring devices like receptacles and connectors rather than the insulated wire and cable that connects to those devices in building electrical systems |
| 335932 | Noncurrent-Carrying Wiring Device Manufacturing | Produces noncurrent-carrying wiring devices and conduit fittings that protect and route the insulated wire manufactured in this classification through building structures |
| 332618 | Other Fabricated Wire Product Manufacturing | Fabricates other wire products from purchased wire including springs and wire forms rather than the insulated electrical conductor cables manufactured in this industry |
| 335311 | Power, Distribution, and Specialty Transformer Manufacturing | Manufactures power transformers that connect to the power cables produced here but classifies under a separate electrical equipment manufacturing code |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | California | 16.4% | 32 |
| 2 | Connecticut | 8.2% | 16 |
| 3 | Florida | 7.2% | 14 |
| 4 | New York | 7.2% | 14 |
| 5 | Ohio | 6.2% | 12 |
| 6 | Massachusetts | 6.2% | 12 |
| 7 | Pennsylvania | 5.1% | 10 |
| 8 | Georgia | 4.1% | 8 |
| 9 | Texas | 4.1% | 8 |
| 10 | New Hampshire | 4.1% | 8 |
% Of Establishments
0%
16%
Source: County Business Patterns, U.S. Census Bureau[3]
SBA Lending Summary
16
Total SBA Loans
$28.5M
Total Loan Volume
$1.8M
Average Loan Size
10 yrs
Average Loan Term
10.75%
Average Interest Rate
504
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[4]
Key Insight: The SBA[7] sets the size standard for NAICS 335929 at 1,000 employees. Firms below this threshold qualify for small business set-aside contracts and SBA-backed lending programs. Federal procurement includes building wire for military construction, power cable for Army Corps of Engineers projects, and specialty cable for Navy shipboard electrical systems. The SBA's contracting programs[8] support manufacturers pursuing General Services Administration and Defense Logistics Agency wire and cable supply contracts. Eligible businesses can access SBA 7(a) loans[9] for working capital, equipment, and acquisition financing, while 504 loans[10] support major fixed-asset purchases including real estate and heavy machinery.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | Readycap Lending, LLC | 8 | $24.5M | $3.1M |
| 2 | Live Oak Banking Company | 8 | $4.0M | $500K |
Frequently Asked Questions
Common questions about this industry.
What types of businesses are classified under NAICS 335929?
Manufacturers of insulated wire and cable from purchased nonferrous metals classify here. Products include building wire, power cable, copper telecommunications cable, control cable, welding cable, automotive wire, and medium-voltage utility cable per the Census Bureau[5] classification.
How is the communication and energy wire manufacturing industry structured?
Roughly 84 businesses employ an estimated 17,400 workers per Census data[11]. The modest establishment count reflects consolidation among large producers running high-volume continuous process manufacturing lines. A handful of major wire manufacturers control the majority of building wire and power cable production capacity.
What is the SBA size standard for NAICS 335929?
The SBA[7] sets the threshold at 1,000 employees. Businesses with fewer than 1,000 average employees qualify as small for federal contracting preferences and SBA-backed financing programs including 7(a) and 504 loans.
What NAICS codes are related to other communication and energy wire manufacturing?
Related codes include 335921 (Fiber Optic Cable), 331420 (Copper Drawing), 335931 (Current-Carrying Wiring Devices), 335932 (Noncurrent Wiring Devices), 332618 (Other Wire Products), and 335311 (Transformers). Each covers products connected to but distinct from insulated conductor wire and cable production.
What industries purchase communication and energy wire products?
Electrical contractors, copper producers, commercial builders, electric utilities, and automotive electrical equipment manufacturers purchase wire and cable products. Residential and commercial construction drives the largest share of building wire demand while utility distribution line programs and automotive production provide additional volume.
What activities are included in NAICS 335929?
Activities include manufacturing NM-B and THHN building wire, producing medium and high-voltage power cable, fabricating copper telecommunications cable, manufacturing control and instrumentation cable, producing welding cable, manufacturing automotive primary wire, and extruding insulated aluminum conductor cable for utility distribution applications.
Can communication and energy wire manufacturers qualify for SBA loans?
Yes, firms below 1,000 employees qualify for SBA lending programs[8] including 7(a) and 504 loans. Wire drawing machines, insulation extrusion lines, cabling equipment, and copper rod breakdown mills represent capital investments suited to SBA 504 equipment financing.
Where are communication and energy wire manufacturers concentrated?
Production concentrates near copper supply sources and major construction markets, with facilities in the Southeast, Midwest, and Texas. Indiana, Georgia, and North Carolina host major building wire plants. Proximity to copper rod mills and electrical distribution centers influences facility location decisions for manufacturers requiring high-volume raw material delivery and finished goods distribution.
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]Bureau of Labor Statistics bls.gov
- [7]Small Business Administration sba.gov
- [8]SBA's contracting programs sba.gov
- [9]SBA 7(a) loans sba.gov
- [10]504 loans sba.gov
- [11]Census data naicslist.com
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