Tri-Sigma

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

• Fraternal Organizations
• Fraternities & Sororities

North American Industry Classification System (NAICS) Categories:

• Civic And Social Organizations > Associations, Fraternal > Fraternities
• Civic And Social Organizations > Womens Organizations > Sororities

Standard Industry Classification (SIC) Categories:

• Civic, Social, And Fraternal Associations > Associations, Fraternal > Fraternities
• Civic, Social, And Fraternal Associations > Womens Organizations > Sororities