The B Corp certification process

B Certification

Certifying as a B Corporation goes beyond a product or service certification. It is the only certification that measures a company’s entire social and environmental performance.

The B Impact Assessment is rigorous. It evaluates how your company’s operations and business model impact your workers, community, environment, and customers. From your supply chain and input materials to your charitable giving and employee benefits, B Corp Certification proves your business is meeting the highest standards of verified performance.

Positive impact is supported by transparency and accountability requirements. B Corp Certification doesn’t just prove where your company excels now—it commits you to consider your impact on stakeholders now and in the future by building it into your company’s legal structure.

Why Companies Certify

B Corps set the gold standard for good business and inspire a race to the top, creating performance standards and legal structures being used by thousands of other businesses around the world.

Rose Marcario

The B Corp movement is one of the most important of our lifetime, built on the simple fact that business impacts and serves more than just shareholders -- it has an equal responsibility to the community and to the planet.

Logo for Patagonia Works - Rose Marcario, CEO, Patagonia Works

When your company certifies as a B Corporation, you join a community of business leaders who share your belief that business can solve social and environmental problems. Connect online, meet in person at events, or build client and vendor relationships within a powerful community of practice.

Having physical and digital connections with others on the same journey is invaluable for the learning and support needed to increase speed and impact. For 30 years as an activist business under our belt, we’ve searched hard and without success to find a network with similar bold aspiration and willingness to help and share. When we certified as a B Corp, we knew we’d found the people we’d been looking for; nothing else comes close.

Logo for The TYF Group - Andy Middleton, Founder, The TYF Group

More and more of the workforce makes decisions about where to work based on the positive impact their work creates and how well an employer treats their team. There’s no better way to attract and engage mission-aligned talent than to verify your values with B Corp Certification.

The team was really excited and proud when we became certified and many new joiners say that our B Corp certification is one of the things that they liked about us when hunting for jobs.

Logo for Lily's Kitchen - Henrietta Morrison, Founder, Lily's Kitchen

Maintaining B Corp Certification through the B Impact Assessment is a powerful mechanism to help your company set goals for improvement, create more positive social and environmental impact, and track performance over time.

The third-party validation that comes with B Corp Certification helps your company stand out and stand by your mission. The B Corp seal on a product, website, sales materials or business card instantly communicates that a company is a verified leader when it comes to positive impact and empowers individuals to confidently vote with their dollars.

Andrea Walker

Aligning our company with B Lab and this powerful movement has been incredibly rewarding. As a bank, we often get perceived as a company that makes profits at the expense of people and the planet, but this certification has helped us differentiate ourselves and show how we are doing the exact opposite. It's provided a credible basis to tell our story of how we are dedicated to healing the banking system for good.

Logo for Beneficial State Bank - Andrea Walker, Beneficial State Bank

Make sure your company is built on a solid legal foundation for the long term. The B Corp legal framework helps you protect your mission through capital raises and leadership changes and gives you more flexibility when evaluating potential sale and liquidity options.

Certification Requirements

Note: The Certification process and requirements may differ based on size and structure. Please be sure to review the process and requirements below that best correspond to your company's size and structure.


Used by over 50,000 businesses, the B Impact Assessment (BIA) is a free, online platform that evaluates how your company interacts with your workers, customers, community, and environment. Complete and submit the BIA to begin the performance requirement of certification.


Use our Legal Requirement Tool to determine how your company can integrate stakeholder consideration into your governance structure. Your company's specific legal requirement and timeline will depend on location and structure.


After completing the BIA, B Lab will verify your score to determine if your company meets the 80-point bar for certification. Meet virtually with B Lab staff to review your completed B Impact Assessment and submit confidential documentation to validate your responses. To maintain certification, B Corps update their BIA and verify their updated score every three years.

Get all the details on how to meet the requirements for B Corp Certification.



To finalize certification, sign the B Corp Declaration of Interdependence, sign your B Corp Agreement, and pay your annual certification fees. Find your B Corp Agreement.

Annual Sales Annual Certification Fee
£0 - £149,999 £500
£150,000 - £1,999,999 £1,000
£2,000,000 - £4,999,999 £1,500
£5,000,000 - £9,999,999 £2,500
£10,000,000 - £19,999,999 £5,000
£20,000,000 - £49,999,999 £10,000
£50,000,000 - £74,999,999 £15,000
£75,000,000 - £99,999,999 £20,000
£100,000,000 - £249,999,999 £25,000
£250,000,000 - £499,999,999 £30,000
£500,000,000 - £749,999,999 £37,500
£750,000,000 - £999,999,999 £45,000
£1 B+ £50,000+, depending on the structure of the company

*Fees for companies outside the USA and Canada may vary and are paid in their local currency. Contact B Lab with specific questions.


From articulating the business case for Certification and engaging your leadership team to completing the B Impact Assessment and meeting the legal requirement, the guides below are perfect starting place for your company. Based on your company size, download our best practice guides below.

Does Your Company Fall into One of These Categories?

B Corp Certification comes with additional considerations for certain businesses.


Companies with less than one year of operations



Companies that are publicly-traded or have between $100M and $4.9B USD in annual revenues



Parent companies that have over $5B USD in annual revenue



Parent companies, subsidiaries, franchises, and other affiliated entities


Ready to Get Started?

Register for the B Impact Assessment and start answering your questions about your company's operations and business model. Along the way, you'll be able to set goals for improvement, compare your performance to similar companies, and learn best practices pulled straight from the Certified B Corp community.

B Impact Assessment

More Questions?

B Corp Certification is based in part on a company's verified performance on the B Impact Assessment, which asks questions about a company's past fiscal year. This means that companies with less than one year of operations are not yet eligible for B Corp Certification. Instead, they may pursue Pending B Corp status, designed to set a start-up on the path to full Certification.

Certified B Corporations pay an annual certification fee, which licenses them to use intellectual property like the Certified B Corp logo. This fee starts as low as £500  for certified B Corps and scales with revenue. If you have been operating for less than a year, you can become a Pending B Corp which is £250. You can see the full pricing schedule on the Certification page. Access to the B Impact Assessment is free.

The length of the certification process varies based on a company's size and complexity. Completing the B Impact Assessment requires a minimum of several hours. The verification process to finalise a company's score typically takes several weeks. Large multinationals or companies with many related entities should expect a longer process.

All Certified B Corps must meet a legal accountability requirement to maintain Certification. Your company's legal requirement will varies based on your location and structure. 

Companies and other business forms wishing to become a B Corp in the UK will need to have or adopt governing documents which include a commitment to a ‘triple bottom line’ approach to business. In practice, for a typical business, this is likely to mean having an objects clause which states that it exists to promote the success of the business for the benefit of its shareholders but also to have a material positive impact on society and the environment. 

The governing documents of B Corps will also need to state that the board members of the company need to consider a range of ‘stakeholder interests’ – including shareholders, employees, suppliers, society and the environment – when making decisions and, critically, that shareholder value is not the supreme consideration but is one factor amongst the many stakeholder interests which board members need to take into account when running the business. 

For companies looking to certify as a B Corp in the UK, we have a step by step guide for amending your constitutional documents to include the B Corp legal language (the “Legal Test”).

If you are outside of the UK please use our Legal Requirement tool.