Denver Sister Cities International

Denver Sister Cities International is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Associations Special Interest
• Educational Associations & Organizations

North American Industry Classification System (NAICS) Categories:

• Professional Organizations > Education Associations & Organizations
• Other Similar Organizations (Except Business, Professional, Labor, And Political Organizations)

Standard Industry Classification (SIC) Categories:

• Professional Membership Organizations > Education Associations & Organizations
• Membership Organizations, Nec