B Lab is a non-profit organization (EIN: 20-5958773) headquartered in Berwyn, Pennsylvania, which created, and awards, the B Corporation certification for for-profit organizations. The "B" stands for beneficial and indicates that the certified organizations voluntarily meets certain standards of transparency, accountability, sustainability, and performance, with an aim to create value for society, not just for traditional stakeholders such as the shareholders.
In addition to awarding the B Corporation certifications, B Lab campaigns for the adoption and improvement of benefit corporation statutes at the state level. (The B Corporation certification should not be confused with state-sanctioned benefit corporation status.) In that sense, B Lab is in the same historical tradition as private certification authorities such as Det Norske Veritas (a Norwegian foundation, operating as a classification society), UL (a private US company, whose standards are recognized by the insurance industry), and Germany's TÜV's (associations devoted to all aspects technical safety). These organizations formally are private-sector entities, but their reach is complementary with, and broadly comparable to, public or intergovernmental standards-setting bodies and certificating authorities.[original research?]
B Lab runs a separate website devoted to information about benefit corporations and the progress of relevant state legislation.
B Lab has been extremely effective in attracting media attention to the concept of benefit corporation. The concepts of benefit corporation and B Corporation are sometimes used interchangeably.
B Lab has established a partnership with the United Nations to help the private sector translate the SDGs into practical business processes. B Lab is in the process of creating a SDG Navigator that companies can use by early 2020. 
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- Feloni, Richard (19 April 2019). "The entrepreneur behind the coveted B Corp label shares why he's partnering with the UN to solve our most pressing workforce problems". Business Insider. Retrieved 23 May 2019.