The back of every Blade Annual book has makers and specialties listed.
Also, a search for custom knife engraving might help. Posting a request in The Exchange - Services Wanted would be where to solicit someone from the people on Bladeforums.
There are many engravers forums online, and in BF there is Tinkering and Embellishment. You will find many engraving folks at those places, and can send a message to someone you might want to do your work.