What Is B Corp Certification & What It Actually Proves

You've seen the B Corp logo on packaging, websites, and storefronts. It's worth knowing exactly what it means, especially when you're shopping for a sofa bed or any other considered purchase.

Key Takeaways

• A B Corp is a company independently verified by B Lab against social and environmental standards: the badge covers the whole business, not any single product or material.

• The minimum qualifying score is 80 out of 200 on the B Impact Assessment; the median score for ordinary businesses is 50.9, making the 80-point threshold a genuine filter.

• B Corp certification and "benefit corporation" are different things: one is a private credential, the other is a legal corporate structure.

• Companies must recertify every three to five years and demonstrate continuous improvement: the badge can be lost.

• For furniture buyers, B Corp tells you about the company. CertiPUR-US, OEKO-TEX, and GREENGUARD tell you about what's inside the product.

What B Corp Certification Means

B Corp certification is a verified commitment that a business operates with real accountability: to its workers, its community, the environment, and its customers. A company doesn't self-declare B Corp status. It earns it through an external audit and a legal amendment to its governing documents.

The "B" stands for Benefit, as in benefiting people and the planet alongside profit. This is not a charity designation or nonprofit status. B Corps are for-profit businesses that have chosen to be held to a higher standard and verified against it.

Who Awards B Corp Certification: B Lab & the B Impact Assessment

B Lab is the global nonprofit that created and administers B Corp certification. Founded in 2006, B Lab is not a government agency: it sets its own standards through an independent Standards Advisory Council. As of 2025, more than 9,500 companies across 160 industries in 102 countries hold the certification.

The core tool is the B Impact Assessment (BIA), a scored questionnaire that independently measures a company's social and environmental practices. Companies that reach 80 out of 200 points move to a third-party verification stage compliant with ISO 17021-1, the international standard for management system audits.

What the B Impact Assessment Measures

The BIA evaluates performance across five impact areas. The weighting shifts by industry and company size: a furniture manufacturer carries a heavier environmental score than a software firm.

• Governance: transparency, ethics, and leadership accountability

• Workers: wages, benefits, job safety, career development, and workplace culture

• Community: local economic impact, supply chain standards, diversity, and inclusion

• Environment: energy use, water, waste, emissions, and materials

• Customers: product quality, safety, and whether the business model creates broader social value

How a Company Becomes B Corp Certified: Step-by-Step

Step 1: Complete the B Impact Assessment

The company completes the BIA through B Lab's free B Impact tool, covering its prior 12 months of operations. Startups with less than one year of trading are not eligible. At this stage, the assessment is self-reported: the company fills in its own answers.

Step 2: Pass Verification with B Lab

Companies that score 80 or above move to an independent review by B Lab's Standards Analysts. This includes a documentary evidence check, a verification call, and potentially randomised on-site visits. Companies must provide supporting documentation for their responses before certification is granted.

Step 3: Amend the Legal Governing Documents

Every certified B Corp must update its articles of incorporation, or equivalent governing documents, to legally embed a commitment to all stakeholders, not just shareholders. This amendment survives changes in ownership or management, which is what makes it meaningful.

Step 4: Recertify on Schedule

Under B Lab's updated Standards V2, companies recertify every five years, with mandatory improvement milestones at the three-year mark. A company that fails to demonstrate progress or faces substantiated misconduct allegations can lose its certification.

What B Corp Certification Costs a Company

Annual certification fees start at $2,000 USD for the smallest companies and scale with revenue. The B Impact Assessment itself is free to complete. Companies may also incur legal fees to update their governing documents and internal costs to prepare documentation for the verification review. For large multinationals, the total cost is significantly higher.

Difference Between a B Corp & a Benefit Corporation

This is the most commonly confused point on this topic, and B Lab's own certification page doesn't address it clearly.

A company can hold B Corp certification without adopting the benefit corporation legal structure, and vice versa. A handful are both. When a company is a benefit corporation, that legal status satisfies B Lab's legal accountability requirement for certification.

B Corp vs Other Sustainability Labels: What Each One Verifies

B Corp is a company-level certification. It says nothing about the materials inside a specific product. Here's how it compares to labels you'll see on sofa beds and other furniture:

The key distinction: B Corp and Change Climate tell you about the company. CertiPUR-US, FSC, GREENGUARD, and OEKO-TEX tell you about what's inside the product. The most credible furniture brands carry both types: a modular sofa from a B Corp with CertiPUR-US foam gives you accountability at both levels. See our roundup of sustainable furniture brands in the US to see who stacks them.

Criticisms & Limits of B Corp Certification

B Corp certification carries genuine credibility. But understanding where it has been challenged helps you read the badge accurately.

Self-reported starting point. Companies fill in the B Impact Assessment themselves before independent verification begins. Researchers studying multi-stakeholder governance frameworks have noted this creates a risk of optimistic submissions, even where B Lab's verification process is designed to catch inconsistencies.

Scale and scrutiny. As larger corporations joined the certification, public debate has grown over whether the standard holds equally at scale. In 2021, a well-known consumer drinks brand had its B Corp status rescinded after former staff described a toxic workplace culture. In February 2024, Eco-Business reported that a B Corp-certified bottled water brand topped an audit of Indonesia's biggest plastic polluters, accounting for one-quarter of all PET bottles found in the country's waterways and raising questions about whether product-level harms can coexist with a company-level badge.

No legal enforceability. B Lab's standards are privately issued. Failing to meet them results in decertification, not legal liability for directors. As Wikipedia's entry on B Corporation (certification) notes, "B Lab certification has no legal status and is lacking in mandatory due diligence mechanisms."

None of this makes the badge meaningless. It means you read it as rigorously audited evidence of intent and practice, not an unconditional guarantee.

What B Corp Certification Means When You Buy Furniture

When a furniture brand holds B Corp certification, you have independent evidence that B Lab has audited how the company pays and treats its workers, what it demands from its supply chain, how it accounts for its environmental footprint, and how its governance is structured so those commitments outlast leadership changes.

What the badge doesn't tell you: whether a specific sofa cushion meets a chemical safety standard, or whether a fabric is free of restricted substances. That's exactly what CertiPUR-US, OEKO-TEX, and GREENGUARD cover at the product level. The strongest furniture brands stack both: a company-level badge and certified materials on the actual product you're buying.

Koala holds B Corp certification, first awarded in April 2018, and has continued to improve its score across every recertification since: from 83.9 at initial certification, to 91.9 in 2022, to a current score of 120.5 out of 200. For context, the median score for ordinary businesses completing the BIA is 50.9. Our Koala Sofa Bed and Byron Sofa Bed pair that company-level accountability with verified materials certifications on the foam and fabrics inside. See how we compare in our guide to the 7 best sustainable sofa beds for eco-conscious homes in 2025.

Here's the current Koala sofa bed lineup, every piece built by a B Corp-certified company:

Shop Koala: B Corp-certified furniture. Every Koala piece is built by a company that's been independently verified against B Lab's standards, covering our workers, our supply chain, and our environmental footprint. Browse sofa beds | Explore modular sofas

Frequently Asked Questions

What is the difference between a C Corp and a B Corp?

A C Corp is a standard US legal structure where directors are primarily obligated to maximise shareholder returns. B Corp certification, issued by B Lab, is a third-party credential, not a legal structure: a company can be incorporated as a C Corp and still hold B Corp certification. To earn it, the company must pass the B Impact Assessment and amend its governing documents to commit to all stakeholders, not just shareholders.

Why are companies becoming B Corporations?

Companies pursue B Corp certification to prove sustainability commitments to skeptical buyers, attract and retain values-driven employees, and access a global network of more than 9,500 purpose-driven businesses. Research suggests B Corp certification can increase brand trust and reduce customer churn among buyers who are wary of greenwashing and unsupported claims.

What is the largest B Corp in the world?

The largest B Corp by revenue is a major European multinational food company that was certified in 2018, overtaking a Brazilian cosmetics conglomerate that had held the distinction since 2014. A publicly traded software company that was certified in 2021 was the first NYSE-listed business to earn B Corp status. The certification now covers major multinationals across 102 countries and 160 industries.

What big companies are B Corps?

B Corp certification spans more than 9,500 companies across 160 industries and 102 countries, from independent consumer brands to global multinationals in food, fashion, finance, tech, and furniture. Every certified business has passed the same B Lab verification process, regardless of size or sector.

What does B Corp certified mean on a product?

It means the company that made the product has been independently verified by B Lab for its overall social and environmental business practices, not that the product itself has cleared a materials or emissions test. For product-level assurance when buying furniture, look separately for CertiPUR-US on foam, OEKO-TEX Standard 100 on textiles, and GREENGUARD Gold on finished products for low chemical emissions.