Then literally any job shop which wants the work, it's just enough to warrant programming the CNC but not so many that a manual shop couldn't do them for about the same price. My stock advice applies, you should be able to find somebody to do 20 for £100 or thereabouts.
On the other hand, there's a better than even chance that these would do the job
I will admit that I am not aware of what term to Google to find such a shop- “machinist” doesn’t work, neither does “light engineering”. What am I missing?
CNC+milling or turning plus your town name usually brings up directory listings. Since many shops still don't have their own website, you may have to use street view to have a preliminary look to pick likely candidates.
Then literally any job shop which wants the work, it's just enough to warrant programming the CNC but not so many that a manual shop couldn't do them for about the same price. My stock advice applies, you should be able to find somebody to do 20 for £100 or thereabouts.
On the other hand, there's a better than even chance that these would do the job