Performance Requirements

The following describes the specific steps we will take together to validate the company's social and environmental performance measured through the B Impact Assessment.  This process is designed to be rigorous yet straightforward.  Please reach out to us, and we can help you get started or put you in touch with a B Lab assessment expert (

A) Take the B Impact Assessment

The first step in becoming a Certified B Corporation is taking the B Impact Assessment, which assesses the overall impact of your company on its stakeholders.  The assessment varies depending on the company's size (number of employees), sector, and location of primary operation.  Completing the assessment typically takes 1-3 hrs; we encourage using your best estimates the first time around.  Once you've completed the assessment, you will receive a B Impact Report that contains an overall score.

Continue to the B Impact Assessment   How does it work? Read our FAQs

B) Complete an Assessment Review

Next, we will schedule an Assessment Review with a B Lab staff member.  On this call, B Lab staff will review questions that may have been difficult to answer or are unclear; this will give us a chance to refine our answers so that they fit the intent of the questions.  The review also helps us understand more about the unique circumstances and best practices related to your company.  On average, it takes about 60-90 minutes to complete a review.  To schedule a review, email and let us know a few times that would work for you.

C) Submit Supporting Documentation

On your Assessment Review, our staff will also show you how to submit supporting documentation, if your score is above 80 out of the 200 points available.  The Assessment will randomly select 8-12 questions that were answered in the affirmative and ask the company to demonstrate those practices in more detail through documentation. The document list will be generated after your Assessment Review.  Our staff will give you plenty of guidance on how to complete this step.

D) Complete Disclosure Questionnaire

The Disclosure Questionnaire allows the company to confidentially disclose to B Lab any sensitive practices, fines, and sanctions related to the company or its partners.   This component does not affect the company's rating.  Typically, the majority of these responses are minor in nature and therefore no further action is needed.  However, if B Lab identifies one or more items in the Disclosure Questionnaire or in a background check of the Company and its senior management to be material, it may merit further transparency, and the Company will be notified to provide incremental disclosure on  Acceptance into and continued participation in the B Corp community is at the sole discretion of the Standards Advisory Council and B Lab's Board of Directors.

On-site Reviews

10% of Certified B Corporations are randomly selected each year for an on-site review.  This component of the B Corp Certification is critical in maintaining the authenticity of the Certified B Corp Seal. Our goal for the review is to verify the accuracy of all affirmative responses (not just the top 8-12 responses) in the company's B Impact Assessment.   An on-site review typically takes between 6-10 hours depending on the size and scope of business.


In order to maintain B Corporation Certification, a company must complete Steps A-D every two years and achieve at least 80 out of 200 available points. This process ensures that companies who become certified B Corporations continue to engage in a high level of impact with their stakeholders, even as the business grows or changes. The B Impact Assessment is updated every two years, so recertification also gives companies the opportunity to set improvement goals against the most-up-to-date standard and benchmark their performance over time.