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

• Knitting School
• Yarn

North American Industry Classification System (NAICS) Categories:

• Sewing, Needlework, And Piece Goods Stores > Textiles, Fabrics & Crafts Supplies > Yarn
• All Other Miscellaneous Schools And Instruction > Schools & Educational Services, Needlework > Knitting & Crocheting Instruction

Standard Industry Classification (SIC) Categories:

• Sewing, Needlework, And Piece Goods Stores > Sewing, Needlework & Piece Goods, Nec > Yarn
• Schools And Educational Services, Nec > Schools & Educational Services, Needlework > Knitting & Crocheting Instruction