It might be on the other side of the zipper?
Or on this part of the zipper. 
There are actually only a few main brands. 
![](https://m.stacker.news/44639)

Satosora

I have had a look at ykk, as well as the strips I've got laying around, and it doesn't match anything.

Also: YKK usually has "ykk" on them, whereas here it's these "wings".

Fabs

What's This Zipper's Brand?

My man, are you sure that is the brand of the zipper, or the brand of the item of clothing you have?
Check the other side of the zipper, those are usually YKK. 