Sigma Aldrich

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

• Business Services
• Chemicals & Allied Products, Nec

North American Industry Classification System (NAICS) Categories:

• Other Chemical And Allied Products Merchant Wholesalers
• All Other Business Support Services

Standard Industry Classification (SIC) Categories:

• Chemicals And Allied Products, Nec
• Business Services, Nec