Hi! I'm scott, and I hope to provide some useful perspective on this issue.
While there may be trademark infringement one way or other, it's not always so "cut and dried."
It's good that you registered a trademark.
However, registration is not required for trademark protection, and is no panacea.
In fact, first-use can win over registration, and for thos using the same or very similar marks first, they can claim first rights to it -- assuming they can prove they were first in time.
I know that's not what you wanted to hear, but it's important for you to know.
With respect to possible Trademark infingement, several factors come into play:
-- whether the products/services are the same or very similar
-- whether the similar products/services are competing in the same geographic area or proximate, or even the same 'virtual space'
-- whether the businesses are targeting the same consumer demographic, etc. --
The key to establishing infringement, or defeating that, is proving that the similarity of the marks creates confusion among the same consumer demographic between the serviceproviders.
"Prime Edits" "Prime Edit Post Production" and "Prime Editors" are all very similar: is there a way to distinguish your service from the other? Service offering? Geographic reach? Intended consumer demographic?
Legal remedies are expensive and time consuming, so it might be best to try and resolve between yourselves.
If you both are offering simial services to similar customers in the same market, isn't best for your business to brand in a distinctive fashion?
If you are really attached to your trademark, explain your desire to avoid litigation and ask them to substaniate their first use. If they can, a prolonged battle just may not benefit anyone.
Here's a resource for you:
I hope this provided some helpful perspective: and if you thinks so, I would appreciatea positive rating!