B Corp certification is a third-party credential from the nonprofit B Lab. It verifies that a company meets high standards of social and environmental performance, public transparency, and legal accountability. A business earns it by scoring at least 80 out of 200 points on B Lab’s B Impact Assessment. It must also legally commit, through a change to its governing documents, to weigh workers, customers, community, and the environment alongside shareholder profit. The credential is not permanent. It is re-verified on a recurring cycle, currently five years with compliance checkpoints along the way. On Keys for Tomorrow’s own directory, B Corp is by far the most common certification. It appears on 4,248 of the 11,300+ projects listed.

What is B Corp certification?

B Corp certification is awarded by B Lab, an independent nonprofit founded in 2006. B Lab built the certification to give responsible companies a verifiable way to prove it, rather than simply claiming it in marketing copy. Unlike a sustainability report a company writes about itself, it is scored against an external standard. Claims are checked against supporting documentation. Companies are also subject to random on-site or virtual audits.

Any for-profit company can apply, from a two-person studio to a multinational. What changes is the assessment’s weighting. A manufacturer is scored more heavily on environmental impact and supply chain. A professional services firm is scored more heavily on governance and worker treatment. This size- and sector-adjusted design is part of why the certification shows up across such a wide range of industries, including finance, fashion, food, and professional services.

How does a company get B Corp certified?

Getting B Corp certified runs through four stages. Most applicants spend six months to two years in the process.

1. Complete the B Impact Assessment. This is a free, self-guided questionnaire covering governance, workers, community, environment, and customers. Most companies score between 40 and 60 points on their first attempt, well short of the 80-point bar. They use that gap to identify where policies need to change.

2. Close the gap and submit for review. Once a company believes it can clear 80 points, it submits supporting documentation: payroll records, supplier contracts, environmental policies, board minutes. A B Lab analyst then verifies the self-reported answers against that evidence.

3. Meet the legal requirement. The company must formally amend its governing documents. That means its articles of incorporation, bylaws, or operating agreement, depending on jurisdiction. The change requires directors to weigh the interests of workers, community, and the environment, not just shareholders. In the US, this usually means adopting the legal status of a benefit corporation where available.

4. Sign the B Corp Agreement and pay certification fees. Fees scale with annual revenue. As of 2026, B Lab certifies on a five-year cycle with compliance checkpoints at year three and year five, replacing the older flat three-year recertification model. A company cannot coast on an old score, since standards are also periodically raised.

What does the B Impact Assessment actually measure?

The B Impact Assessment scores a company across five areas, out of a possible 200 points. A company needs 80 points to pass:

• Governance — mission lock-in, board accountability, transparency with stakeholders, ethics policies.
• Workers — wages relative to local living-wage benchmarks, benefits, training, ownership or profit-sharing programs, workplace safety.
• Community — diversity and inclusion in hiring and leadership, supplier relationships, local economic development, charitable giving.
• Environment — energy and water use, emissions, waste, supply chain and materials sourcing, land and life impact.
• Customers — product or service quality, data privacy, and whether the company’s core business model creates a positive outcome. This mainly applies to companies whose product directly serves an underserved population or environmental need.

The weighting adjusts by industry and size. A bank and a clothing manufacturer answer largely different question sets. This is also why B Corp scores are comparable within a sector, but should be read cautiously across very different ones.

Why does B Corp certification matter?

It matters because it replaces a company’s own sustainability claims with an externally verified, legally binding one. Three things make it harder to game than a self-published pledge:

First, the legal requirement is not symbolic. Once a company amends its governing documents, its directors have a standing obligation to weigh stakeholder interests. That’s enforceable the same way any other governance provision is. A future acquirer or new leadership team cannot simply drop it. Second, documentation review means claims are checked against real records, not taken at face value. Third, periodic re-certification means the credential expires if standards slip. A company cannot certify once and use the badge indefinitely.

For buyers, investors, and partners trying to tell a genuinely accountable company apart from one with just a good mission statement, that combination is the practical value of the credential. It’s also why companies like Assiniboine Credit Union and Atlantic Central lean on B Corp status as their primary credibility signal. Both operate in the decent work and economic growth (SDG 8) space, where trust in a financial institution’s actual practices is hard to verify any other way.

How is B Corp different from other sustainability labels?

Most sustainability labels certify one thing: organic ingredients, responsible forestry, fair-trade sourcing, or a single environmental management system like ISO 14001. B Corp is a whole-company standard. It scores governance, labor practices, community impact, and environmental performance together. It’s also the only major certification that requires a legal change to how the company is structured.

That breadth is also its main limitation. A strong B Corp score doesn’t guarantee best-in-class performance on any single dimension the way a narrower, deeper certification might. A company sourcing from Kowtow or SAITEX for verifiably low-impact manufacturing might reasonably still check for a fiber-specific label alongside B Corp status. On Keys for Tomorrow, both credentials often show up side by side rather than as substitutes. Browsing the directory alongside a project’s specific industry certification usually gives a fuller picture than either alone.

What B Corp certification looks like in practice

The clearest way to understand what the certification rewards is to look at how it plays out across industries. Satya Organics, a B Corp with a score of 88.6, built its case around ingredient sourcing and product safety. Those are the areas the assessment weighs heavily for consumer health brands. Riverside Natural Foods earned its certification largely on a zero-waste manufacturing standard, under the environment category of the assessment. Desmond & Dempsey, a UK organic sleepwear brand stocked in Harrods and Selfridges, shows that certification and premium retail positioning aren’t mutually exclusive. B Lab’s standards don’t require a company to be small or niche.

These examples span food, finance, and fashion. Each earned certification through a different section of the assessment, which is the point: B Corp doesn’t ask every company to look the same. It only asks them to be verifiably accountable in the ways most relevant to what they do. Keys for Tomorrow’s responsible consumption and production (SDG 12) and partnerships for the goals (SDG 17) pages both draw heavily from certified B Corps for this reason. The credential is one of the few consistent, cross-industry signals the directory can tag against.

Frequently asked questions

Is B Corp certification the same as being a benefit corporation?

No. Benefit corporation is a legal business structure, available in certain jurisdictions, mostly US states. B Corp is a private credential from B Lab. Many certified B Corps are also legally structured as benefit corporations, since B Lab requires that legal commitment either way. But the two terms aren’t interchangeable.

How much does B Corp certification cost?

Certification fees are set by B Lab on a sliding scale, based on the company’s annual revenue. Cost varies significantly between a small business and a large enterprise. The B Impact Assessment itself is free to complete.

Can a company lose its B Corp certification?

Yes. As of 2026, B Lab recertifies companies on a five-year cycle with compliance checkpoints at year three and year five, checked against its current standards, which are periodically raised. A company that doesn’t maintain its practices, or that fails re-verification, loses certified status.

How many B Corp certified companies are listed on Keys for Tomorrow?

As of this writing, 4,248 projects in the Keys for Tomorrow directory carry B Corp certification. That makes it the most common certification on the platform. The full list is browsable on the B Corp certification page.