Duke Energy

Duke Energy is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Electric Companies
• Energy Conservation Products & Service
• Gas Utility Companies

North American Industry Classification System (NAICS) Categories:

• Electric Power Distribution
• Natural Gas Distribution > Natural Gas Companies
• Other Building Material Dealers > Insulation & Energy Conservation Materials > Energy Conservation Products
• Administration Of General Economic Programs > Energy Conservation Products & Service

Standard Industry Classification (SIC) Categories:

• Electric Services
• Gas Production &/Or Distribution
• Lumber & Other Building Materials > Insulation & Energy Conservation Materials > Energy Conservation Products
• Administration Of General Economic Programs > Energy Conservation Agency