Is Synthetic Thread Company Still In Business?

[aermotor]

I have been using Polyester Nu Bond - Size 6 Cord (White) - from Synthetic Thread Company in Bethlehem, PA. I use it for hand-stitching, and it has worked very well. I would like to purchase more of it, but my supplier no longer carries it. Does anyone know of a source for this thread? Or something similar? I think it is comparable to a Size 415 thread.

Thank you,

Aermotor

[wvcraftsman]

I believe Sythetic thread was bought by American and Efird. I think A&E has thread that size and Coats may have it too.