NAICS UNIVERSITY · Free research for insurance agents
Sign Manufacturing
NAICS 339950 · United States · 2022 edition
This industry comprises establishments primarily engaged in manufacturing signs and related displays of all materials (except printing paper and paperboard signs, notices, displays).
Activities described by this code
Other activities to examine
- Printing advertising specialties or printing paper and paperboard signs, notices, and displays: 32311 — Printing
- Manufacturing die-cut paperboard displays: 322299 — All Other Converted Paper Product Manufacturing;
- Sign lettering and painting: 541890 — Other Services Related to Advertising
Census classification reference
For educational purposes only. AI-generated insurance research and automated logic can contain errors. Independently verify classification and coverage decisions.
Compare another operationInsurance operations research — draft
Sign manufacturers fabricate commercial, industrial, architectural, and advertising signs from materials such as metal, acrylic, plastics, wood, glass tubing (neon), and LED components. Operations typically include cutting, welding, painting, electrical assembly, and finishing. Many shops also handle installation of finished signs at customer sites, adding a field operations component to the manufacturing exposure.
Questions to investigate
- Does the operation include field installation of signs, or is production shop-only?
- What types of signs are primarily manufactured — illuminated, LED/digital, neon, flat, or a mix?
- Are installation crews employees or subcontractors, and are certificates of insurance collected from subs?
- What is the split of payroll between fabrication shop workers and field installation crews?
This insurance research was generated in April 2026. It has not received a complete human review. The October 12, 2026 audit checked codes and titles only, not descriptions or coverage assertions.