When B Corp gets harder, and why that is actually a good thing

When B-Lab announced a new, significantly more rigorous set of certification standards, Butternut Box signed up to recertify on the new framework from scratch. The decision came from two directions at once: a genuine belief in what B Corp represents for the brand, and a recognition that the regulatory environment was moving the same way. The EU Green Claims Directive is tightening requirements for consumer-facing sustainability claims, and robust third-party certification is increasingly how brands substantiate what they stand for. Values and compliance, in this case, pointing in exactly the same direction. That decision is easier to admire than to execute. 

B Corp recertification on new standards 

Butternut Box has been a B Corp since 2022. The company has over 1,000 employees, two factories across the UK and Poland, three brands and operations in 10 European countries. Their supply chain is built on fresh ingredients that must move quickly and meet human-grade quality requirements at every step, making sustainability both more important and more complex than in most businesses. 

B Corp certification matters to Butternut Box in two directions at once. Internally, it gives the sustainability team a framework and a shared language for what they are trying to achieve. Externally, it places the brand in company it is genuinely proud of.  “You’re part of a movement with other B Corps like Patagonia and Innocent drinks showing you can be an amazingly successful business but still do things the right way.”

Alisa Heimann, Group Sustainability Manager at Butternut Box, explains. That kind of brand trust, built with consumers who read the label and look up the certification, is hard to earn and easy to lose. 

When the new B-Lab standards arrived with over 1,000 pages of updated requirements across seven impact areas, recertifying was the obvious choice for a company with those values. Figuring out how to get there in practice, with a lean sustainability team and a fixed audit deadline dictated by the oncoming EU-ECGT Directive, was a different challenge altogether. 

Gap analysis and roadmap: knowing exactly where to start 

Finding the right support came through an unlikely place: a Nexio Projects video on LinkedIn, talking directly about B Corp recertification on new standards. Alisa reached out, had a first conversation, and knew almost immediately that the search was over. “I said to my director, ‘I’m not looking for anybody else,’” she recalls.

“I know we are in good hands. These are the people for us.” 

The first piece of work was a gap analysis. Not a high-level overview but a precise, methodical assessment of where Butternut Box stood against every requirement in the new framework, across year zero, year three and year five timelines. “What Nexio Projects provided us with was the absolute detail of the gaps,” Alisa says. “Every single one of them, and exactly what we had to do, step by step, to close them and make sure we were compliant with the actual standards.” That roadmap became the spine of everything that followed. 

Materiality assessment, human rights and sustainability reporting 

The gaps were real, and some of them were significant: a materiality assessment, a human rights policy, JEDI action plan and a public sustainability landing page. Each one was substantial work, and all of them sat inside a timeline governed by a fixed audit deadline. 

The materiality assessment was a different order of complexity to anything Butternut Box had encountered before. “The beast that was called a materiality assessment.” Alisa says, laughing.

“We used Nexio Projects’ materiality assessment processor, and we would have been lost without it.”

Using Nexio Projects’ tool, what could have been an overwhelming process became structured and manageable and allowed Butternut Box’s own team to actively drive the process, rather than remain on the sidelines.    

The project manager from Nexio Projects held the whole programme together from kick off to audit. “Ultra-organised, incredibly calm, very practical,” is how Alisa describes Stephanie.

“Nexio Projects felt like they were almost an extension to our team. Very friendly, very approachable, and very collaborative. If we had a question between one of our meetings, it was answered so quickly.”

Across a programme with a fixed deadline at the end of it, that responsiveness made a real difference to what the team could achieve. 

The B Corp audit: seven impact areas reviewed in one day 

The B Corp audit under new standards is a full-day virtual event. A rigorous assessor, working through the evidence file across every impact area. There is nowhere to hide and no opportunity to go back and fill gaps once it starts. 

“We had all our laptops open,” Alisa says. “We knew exactly where to find things. We knew our material, and we felt as prepared as we could be.” 

The scoreboard 

• B Corp recertification application submitted, and full-day audit completed 

• Gap analysis delivered across year zero, year three and year five requirements 

• Impact materiality assessment completed using Nexio Projects’ processor 

• Human rights policy, JEDI action plan and ethical marketing policy  developed 

• Public sustainability landing page with compliant policies published 

• Year three roadmap already underway: science-based targets and Scope 3 as next priorities 

What B Corp recertification actually demands 

“Break it down,” Alisa says, when asked what she’d tell another sustainability manager facing the new standards. “It is such a massive thing. When you look at all the requirements of 1,000+ pages, it is so daunting and overwhelming. Identify a coordinator but also identify the specialists within your teams who are best placed to do the actual work. And don’t look at year three and year five requirements yet. Just focus on year zero. Get that done first.” 

Next on the Butternut Box sustainability agenda: science-based targets, a deeper dive into Scope 3 and a supply chain partnership approach that mirrors the transparency the company already demands of itself.  

For any consumer-facing brand facing B Corp recertification on new standards, the lesson from Butternut Box is practical: the complexity is real, the timeline is fixed, and the audit is rigorous. What makes the difference is having the right people alongside you, people who know the standards in detail, who can turn a thousand pages into a step-by-step plan, and who answer questions between meetings before you’ve finished asking them. 

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