Why hire a sustainability consultant through Leafr?

Because you’ll get an expert with the top-tier experience that would usually put them out of your reach. Ready to work within hours, at a third of the industry average cost.

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What we've delivered

From Carbon Accounting to Climate Science, we’ve got you covered.

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1000+

Vetted specialists

Across the  UK, Europe, & US

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100's

Happy clients

From FTSE100 to startups

Star
100%

project success

Plus a risk free trial period on every project

We are trusted by the world’s leading brands
Trusted by 100s of companies

Our vetting process

Each applicant must pass our stringent vetting process before working with clients. Only those meeting our high standards are accepted. We test for behavioural competency, technical skills,  sustainability experience, and culture fit.

20% pass rate

In-depth skill review

Each consultant submits a written application along with case studies of their work. This ensures they have the specialised technical skills to tackle your sustainability challenges.

12% pass rate

Live screening

We interview each candidate for behavioural and technical skills, and test against our detailed  sustainability skillset matrix. We also ask for references and testimonials.

3% pass rate

Test projects & peer review

With the help of our experts, we review past projects to verify the consultant’s ability to deliver impactful sustainability outcomes.

Access Expertise Affordably

Expertise without the fees

Hire top-tier sustainability consultants without the huge expense of employees or consultancy fees. Save 3X on the industry average.

Contracts that flex with you

Bring in sustainability experts for specific  projects, or to strengthen your team as workloads change with no long-term commitments.

Flex Your Team Size Up and Down
Access Specialist Knowledge

The best of the best specialists

Every consultant is vetted and tested on behaviour, technical skills, sustainability experience and culture fit. Only a small percentage make it through.

Hire in under 48 hours

Post a project and get a filtered list of the 5 most relevant profiles in your inbox within 48 hours. We handle contracts, legals and admin.

Resource Your Team Quickly
Obtain 3rd Party Verification

Specialists who cut through complexity


Stay updated on regulatory changes, avoid greenwashing and comply with industry standards.

Free up your teams time

Bring in sustainability specialists to get the project that needs doing done, so your in-house experts can focus on what they do best.

Get Objective Perspectives

Frequently asked questions

Hiring a sustainability specialist is a big decision.
Hopefully these answers will help.

Will the consultant be available when I need them?

Leafr consultants are committed to your project�s success. We ensure they have the availability you need, and our support team is on hand to address any urgent requirements. Our consultants are trusted by top organisations because of their reliability and commitment.

How will you handle our sensitive or confidential information?

Confidentiality is a top priority at Leafr. All consultants sign strict non-disclosure agreements (NDAs) and are trained to handle sensitive information with the utmost care, ensuring your business data remains secure. This is part of why organisations worldwide trust our consultants.

What if the consultant pushes solutions that are too expensive to implement?

Leafr consultants focus on providing cost-effective, practical solutions. They work within your budget constraints and prioritise recommendations that offer the most value without unnecessary expenditure. We offer a risk-free period so you can evaluate their proposals without financial risk.

Will working with a consultant disrupt our current operations?

Our consultants are skilled at integrating smoothly into existing operations. They work with minimal disruption, focusing on enhancing your processes rather than interrupting them. Their experience with top organisations ensures a seamless fit into your team.

I'm worried the consultant might leave the project halfway through.

Continuity is ensured through our rigorous project management oversight. Leafr consultants are committed professionals, and we have contingency plans in place to guarantee that your project will be completed even if unforeseen circumstances arise. Our 100% project satisfaction rating is a testament to our reliability.

I'm worried about committing long-term just to see results.

Leafr offers flexible engagement options. Whether you need short-term assistance or long-term support, we tailor our services to match your desired commitment level. Our risk-free period allows you to explore these options without long-term obligations.

What happens if the consultant becomes unavailable or the project gets delayed?

We have a robust network of consultants, so if any unexpected issues arise, we can quickly provide an equally qualified replacement to keep your project on track. Leafr�s support team is always available to manage and mitigate any potential delays. We also offer a risk-free period to give you peace of mind.

Is the cost-benefit ratio of hiring a consultant really worth it?

Leafr consultants are chosen for their ability to deliver clear ROI. We ensure that the value they bring far outweighs the investment, with tailored solutions that directly impact your bottom line. Plus, our risk-free period allows you to assess the value without commitment.

Will the consultant communicate effectively with our team?

Effective communication is a cornerstone of our consultants� approach. We ensure clear, consistent communication throughout the project, fostering collaboration and alignment with your team. This commitment to communication is a key factor in our 100% project satisfaction rating.

Will my team need retraining after the consultant leaves?

Our consultants focus on knowledge transfer, equipping your team with the skills and understanding they need to sustain progress after the project concludes. This ensures that the improvements are lasting and your team remains confident moving forward.

Will the consultant stay updated with the latest sustainability trends and regulations?

Leafr consultants are experts in their fields, continuously updating their knowledge of the latest trends and regulations. We ensure they bring the most current insights to your project, supported by ongoing training and development opportunities.

I'm concerned about how to assess the consultant's performance effectively.

Leafr provides clear metrics and regular updates, allowing you to track the consultant�s progress and assess the impact of their work. We also encourage feedback to ensure expectations are met. Our 100% project satisfaction rating reflects our dedication to transparency and performance.

I'm worried the consultant might not fully commit if they have multiple clients.

Our consultants are dedicated to delivering results. Leafr carefully manages consultant workloads to ensure your project receives the attention and commitment it deserves. Our 100% project satisfaction rating is a testament to our consultants� focus and dedication.

What if the consultant doesn't understand my specific industry or business model?

At Leafr, we thoroughly vet our consultants to ensure they have deep expertise in various industries. We match you with specialists who have proven experience in your sector, ensuring they understand your unique challenges and goals. Our consultants have been trained and trusted by the best organisations worldwide.

Sustainability done right. First time.

Clients come to Leafr for outcomes, not overhead. Here’s how our consultants deliver.

Leafr is a great solution for finding professional sustainability specialists. Especially convenient if time is short and you need to find a consultant very fast.

Anastasiya Popova
Chief BD Officer
at
Solskin

Good communication, flexible schedule and delivered exactly what was agreed and on time. Would work with her again!

Alexander Pfeiffer
CEO
at
Terralytiq

Tom helped us with calculating our carbon footprint outputs from 2019 to 2023. He managed everything end to end with minimal client direction. It was seamless and effortless. He's an excellent professional.

Bolu
COO
at
Miai

The support's been great from when we first started speaking, you wrote the brief for me and did all the sourcing. So that was fantastic. Communication has been great. The level of engagement has been brilliant.

Nick Anderdon
CFO
at
Freddies Flowers

‍Working with Leafr has been a pleasure from the beginning. Leafr has a wide network of talented individuals, and they have been able to seamlessly connect us with strong candidates for our various projects.

Lara
Partner
at
Xynteo

Leafr's marketplace boasts an extensive network of highly talented individuals. They have effortlessly connected us with great candidates. Leafr has become our go-to for skilled sustainability professionals.

Brenan Hodkinson
CRO
at
Apiday

Whenever you hire consultants you worry whether they'll be as motivated or skilled as your team. Every Leafr consultant has been so impressive. We spoke to several sustainability agencies and this has been far better value.

Guadalupe Oliver
CEO
at
Candoe

Our expert immediately became a seamless addition to our team. Her work showed a mastery of ESG and a strong understanding of the financial sector. We'd love the opportunity to work with her again.

Jess Katz
Director
at
TRIPTIK