What B Corp Certification Actually Means — and Why It Matters More Than a Brand's Own Claims

The fashion industry has a transparency problem. Brands use words like sustainable, conscious, ethical, and responsible with almost no standardised definition and almost no external accountability. A brand can call itself sustainable because it uses one organic cotton style in a collection of 500 synthetic pieces. It can call itself ethical because it has a code of conduct it wrote itself and audits it also wrote itself.

B Corp certification is different. And understanding why requires understanding what it actually demands.

B Corp — administered by the non-profit B Lab — assesses companies across five categories: governance, workers, community, environment, and customers. To certify, a company must score at least 80 out of 200 points across all five areas, submit two years of documentation supporting every claim, and update its legal structure to include stakeholder interests alongside shareholder interests. The process takes, on average, 12 to 18 months. It is repeated every three years, with the bar rising each cycle.

The score is not just a pass or fail. It is publicly available, which means a brand that barely clears 80 and a brand that scores 140 are both B Corp certified but are doing very different things. Another Tomorrow — the most comprehensively certified fashion brand on Conscious Select, scoring in the top percentile of B Corp fashion companies — publishes its score and its full assessment publicly. That transparency is itself a signal.

What B Corp does not guarantee is perfection. Sézane holds B Corp certification and still receives a Not Good Enough rating from Good On You, primarily because of gaps in living wage disclosure across its full supply chain. These are not contradictory positions — they reflect the fact that no certification system captures everything, and that B Corp measures a company's overall commitment to stakeholder accountability rather than guaranteeing that every supply chain decision is flawless.

What B Corp does guarantee is that someone outside the brand checked. That documentation was submitted, verified, and found to be true. That the company's legal structure makes it accountable not just to its investors but to its workers, its community, and the environment.

In a landscape where every brand writes its own sustainability story, that external verification is the most important thing a certification can offer. It is why CS uses it as the foundation of the Independently Certified signal — the highest tier in the CS fashion signal system.

When a brand tells you it is sustainable, that is a claim. When B Lab certifies it, that is evidence.