I don't recognize the brand logo, but you might want to guess what the part numbers of the other wrench sizes might be and then do searches for them to see if you find anything that might at least get you the brand name. For instance, the 15mm size might be a MR836. Also, the M at the beginning might designate metric, so a SAE wrench of the same brand might be a R835.
If I had to guess, I would say it was probably a house brand for a regional auto parts store.