BBB rating
Also: Better Business Bureau rating, BBB letter grade
The Better Business Bureau's letter grade from A+ to F expressing BBB's opinion of how a business is likely to interact with its customers, computed from complaint history and other file data and not from customer reviews.
BBB scores seven elements on a 100-point scale and maps 97 to 100 to A+. A business without enough information is marked NR, for No Rating, which BBB states is neither a grade nor negative. BBB's own overview says customer reviews are not used in the letter-grade calculation.