Phos

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

• Lighting Consultants & Contractors

North American Industry Classification System (NAICS) Categories:

• Electrical Contractors > Electrical Design & Consulting Services > Lighting Consultants & Designers

Standard Industry Classification (SIC) Categories:

• Electrical Work > Electrical Design & Consulting Services > Lighting Consultants & Designers