The most rigorous certification in this space, and the one most often misunderstood.
B Corp is the certification people recognise without quite knowing what it means. The logo turns up on packaging, in brand copy, occasionally on things that have no business carrying it, and most of us have absorbed a vague sense that it is good without ever finding out what it actually tests.
It is worth knowing, because it is the most demanding thing on the list and it is also the one that says least about the product in your hand.
What it measures
B Corp certification is awarded by B Lab, an independent non-profit, after an assessment covering five areas: governance, workers, community, environment and customers.
Note what is not on that list. It is not a product standard. A B Corp is not certifying that this particular candle was made responsibly. It is certifying that the company making it meets a threshold across how it is run, how it treats the people who work there, what it does to the environment and what it puts back.
Which makes it broader and more searching than a materials certification, and less specific about any individual thing you might buy.
The number that matters
A company has to score above 80 on the B Impact Assessment. The median score for an ordinary business completing the same assessment is 50.9.
So the bar is not "better than average". It is roughly sixty per cent above average, across five categories, verified by someone other than the company claiming it.
Why it cannot be gamed once and forgotten
This is the part we find most persuasive. Certification has to be renewed every three years, with a fresh assessment each time.
Most claims a brand makes about itself are a snapshot. A company can do the work once, put the logo on the packaging and coast for a decade. B Corp does not allow that, which means a brand still carrying the mark has passed it repeatedly, under a standard that has itself been getting stricter.
What it does not tell you
Three things, and being straight about them is the point of this piece.
It is not a materials standard. A B Corp can make something from materials you would rather it did not. For fabric, look for GOTS or OEKO-TEX. For leather, Leather Working Group.
It is not a size filter. Certification is expensive and time-consuming, which means plenty of excellent small brands doing everything right have never applied, because the fee and the paperwork are real obstacles when there are two of you.
It is not a guarantee of perfection. It is a score above a threshold. A company can pass while still having things it has not sorted out, and the credible ones will tell you what those are.
How we treat it
We use it as a filter rather than a badge. If a brand is certified, they appear under it. If they are not, they are not penalised, they simply appear under the things that are true of them.
That distinction matters. The moment a filter becomes a reward, the pressure is to stretch it, and a stretched filter is decoration.
The other five work the same way and answer different questions: women-led, upcycled, ethical, small batch and family-owned.
Browse every B Corp certified brand we carry, or see the other ways to shop by purpose.
