These vendors are used for printing / sewing supplies:

MADEIRA USA:

THREAD / BACKING / NEEDLES / SEWING SUPPLIES

https://www.madeirausa.com

Log in:  john@on-timetees.com

GRIMCO:

SCREEN PRINTING INK

GSG:

STAPLES:

ULINE:

BARUDAN:

shopbarudan.com

Log in: john@ottpromo.com