B Corp certification is a legally binding standard verified by B Lab that measures a company’s entire social and environmental performance across governance, workers, community, environment and customers. Unlike a marketing claim, B Corp status must be written into a company’s legal governing documents, committing directors to consider all stakeholders, not just shareholders. ESG PRO is a Certified B Corporation and has delivered a 100% first-time pass rate for its UK clients.
What Makes B Corp Different from Other ESG Certifications
Most sustainability certifications assess a single dimension, such as carbon, supply chain, or governance. B Corp assesses the whole business model across seven impact areas and requires a legal amendment to the company’s Articles of Association, formally embedding stakeholder consideration into how the business is run. This legal step is what makes B Corp certification binding rather than voluntary marketing.
The Certification Process, Step by Step
The process begins with the B Impact Assessment, a free online self-assessment covering governance, workers, community, environment and customers. Companies scoring 80 or above submit for review, where a B Lab analyst verifies claims against supporting documentation in a structured call. Once verified, the company signs the B Corp legal agreement, amends its Articles of Association (or equivalent), and pays an annual licence fee based on turnover.
How Long B Corp Certification Takes
Timelines vary considerably by company size and existing documentation. Still, most first-time applicants take between six months and a year from initial assessment to certification, driven mainly by how much policy and evidence work is needed before submission rather than B Lab’s own review speed. Businesses with existing ESG programmes, such as an EcoVadis rating, generally move faster since much of the evidence overlaps.
What the Assessment Actually Checks
- Governance: board oversight of ESG issues, ethics policies, and transparency practices
- Workers: pay equity, benefits, training, and workplace satisfaction
- Community: supplier diversity, local economic impact, and charitable engagement
- Environment: energy use, emissions, waste, and environmental management practices
- Customers: product/service impact and stakeholder feedback mechanisms
How ESG PRO Supports B Corp Certification
ESG PRO manages the full B Corp process end-to-end. This includes a gap analysis against the B Impact Assessment, policy creation, evidence gathering, carbon reporting, and updating the company’s Articles of Association. Clients are supported by a full consultancy team including a project manager, sustainability lawyer, and carbon consultant, rather than a single generalist adviser. Every ESG PRO client has achieved certification on their first submission.
Frequently Asked Questions
What score do you need to become a B Corp? A minimum of 80 points on the B Impact Assessment, verified by B Lab.
Is B Corp certification only for large companies? No, B Corp certifies companies of all sizes, from sole traders to multinationals; the assessment is weighted according to company size and sector.
How much does B Corp certification cost? B Lab charges an annual certification fee based on annual revenue, separate from any consultancy support used to prepare the assessment.
Do you need a lawyer to become a B Corp? You need to amend your company’s legal governing documents (such as Articles of Association) to include stakeholder consideration, which typically requires legal input. ESG PRO includes a sustainability lawyer as part of its certification service.
How often do you need to recertify as a B Corp? B Corp certification is reassessed periodically (historically every three years, moving to a continuous improvement model under B Lab’s newer standards), so ongoing evidence maintenance matters, not just the initial application.
ESG PRO is a Certified B Corporation with a 100% first-time pass rate for UK clients. Start your B Corp certification journey with a free initial assessment.