Your ON-DEMAND SUSTAINABILITY TEAM
Leafr is a global network of 1,000+ vetted senior sustainability specialists.
Bring in the exact expertise you need, as and when you need it.
So your team can deliver like a team of fifty.
It’s free to share a project and see consultants. No commitment until you hire.
See how it works
A BETTER WAY TO DELIVER
Your priorities & context
The work that needs to stay close - stakeholder relationships, internal priorities, institutional knowledge.
Specialist Skills & Delivery
The expertise you need, when you need it - from strategy through to execution.
Hear from teams who stopped trying to cover every specialism alone
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.
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I am very grateful to the Leafr team for the super impressive professional approach. Genuinely top-notch talent and very refreshing to see this quick progression. Thank you. You’ve built something good!
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Brilliant support from our consultant on the development of a communications strategy. This has turned an extended contract to kick off delivering it. Highly recommend.
I’d been relying on my personal network for recommendations. The results were hit-and-miss. Leafr was different. Within days, I had three perfectly matched experts The one I hired was far better than any of the personal referrals.
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.
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.
Good communication, flexible schedule and delivered exactly what was agreed and on time. Would work with her again!
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.
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.
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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.
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We had the pleasure of working with Gaurav on shaping the Product Carbon Footprints (PCFs) across several of our steel facilities, and the experience was nothing short of exceptional.
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.
What's on your desk right now?
Every engagement matched to the exact seniority, sector knowledge and framework expertise your project needs.
01
From first footprint to validated targets
02
Credible claims at a product level
03
Set the direction and tell the story
04
CSRD, CSDDD, ISSB, and what's coming next
05
Strategy that satisfies investors and regulators.
06
From compliance to nature-positive strategy
07
Visibility, compliance and supplier transformation
08
Senior capacity when you need it most
From first footprint to validated targets
Scope 1,2,3
Net-zero
Reduction roadmaps
GHG Protocol
Internal carbon pricing
SBTi
FLAG
CDP
Energy efficiency
ISO 14064
Hotspot analysis
Supplier emissions
Carbon intensity
Accurate carbon data underpins every sustainability commitment you make. Our consultants build GHG inventories across Scope 1, 2 and 3, identify where your biggest emissions sit, set and validate science-based targets, and develop the reduction roadmaps that turn pledges into measurable progress. They also design the data systems and processes that make your carbon accounting reliable and repeatable year on year.
A glimpse of our network in this area:
Science-Based Targets & Decarbonisation Specialist
Achieved a 39% reduction in Scope 1 & 2 emissions and 13.6% in Scope 3 for IKEA, with a measurable uplift in sustainability-linked product revenue
→ IKEA (Ingka Group) needed a comprehensive sustainability programme with credible science-based targets to drive emissions reductions across a complex global operation
→ Jamie designed and deployed science-based targets across the full business, established the strategy, policies and deployment model, and connected sustainability performance to commercial outcomes
→ Significant reductions achieved alongside a measurable increase in sales of sustainability-related products
SBTi
Scope 3
Net Zero
Sustainability Strategy
Carbon Accounting & Renewable Energy Specialist
Established carbon accounting, renewable energy planning and food waste reduction across Pick n Pay's operations
→ Pick n Pay needed to build a credible emissions baseline and develop strategies for renewable energy and waste reduction across its retail operations
→ Marianna implemented carbon accounting processes, developed a renewable energy strategy to reduce grid dependency, and designed a food waste reduction programme
→ Credible emissions baseline established, renewable energy pathway defined, and food waste reduction programme delivered across the business
Carbon Accounting
Renewable Energy
Food Waste
Retail
From baseline to validated targets
LCA
ISO 14040/44
PEF
EPD
Product carbon footprint
Comparative LCA
Ecodesign
Green claims
Circular economy
Packaging assessment
Material footprinting
Waste reduction
Cradle to cradle
Product-level claims require product-level evidence. Our consultants run full life cycle assessments using PEF and ISO 14040 methodologies, build comparative analyses across product lines, substantiate environmental claims ahead of market launch, and develop Environmental Product Declarations. For companies designing the next generation of products, they also advise on ecodesign, circularity, and compliance with incoming green claims regulation.
A glimpse of our network in this area:
LCA & Product Sustainability Specialist
Built a global LCA capability for Bayer Consumer Health, assembling a team of over 20 experts to run environmental impact assessments at scale
→ Bayer Consumer Health needed product-level environmental impact data to inform strategic decisions on formulation, packaging and supply chain but had no internal LCA function
→ Vladi designed, staffed and operationalised a global life cycle assessment capability across the consumer health division, assembling a team of over 20 LCA experts
→ Global LCA function established, enabling precise environmental impact assessment at product level and underpinning strategic decision-making across the division
LCA
Product footprinting
ISO 14040
FMCG
Packaging
LCA, Impact Reporting & Supply Chain
Built On Running's first sustainability strategy, circularity framework and supply chain environmental programme from the ground up
→ On Running was scaling rapidly and needed a credible sustainability strategy, circularity framework and supply chain programme to match the company's growth trajectory
→ Adrianne developed the strategy, built the circularity framework, aligned GHG accounting with existing LCA approaches, conducted a gap analysis of the social compliance programme within 3 months at the founder's request, and designed the first supply chain environmental strategy
→ Sustainability strategy, circularity pillars and supply chain programme all established, grounding On's reporting in credible methodologies and setting the foundation for the company's current direction
Sustainability Strategy
GHG accounting
Social compliance
Supply chain
Set the direction and tell the story
Strategy Definition
Materiality assessment
ESG reports
GRI
SDG alignment
SASB
Annual reports
Impact reports
Stakeholder enggement
Green claims
BCorp
Ecovadis
ESG ratings
Investor comms
Disclosure strategy
Integrated reporting
A strong sustainability programme starts with a clear strategy and communicates it well. Our consultants develop strategies grounded in business reality, run materiality assessments that surface the issues that matter to your stakeholders, and produce reporting that meets the expectations of investors, regulators, and customers. They also craft the communications, narratives, and submissions that bring your sustainability story to the right audiences in the right way.
A glimpse of our network in this area:
Sustainability Strategy & Sustainable Materials
Created Nanushka's inaugural sustainability strategy, winning Best Sustainable Brand of the Year at the 2022 Drapers Awards
→ Nanushka needed a credible sustainability strategy with clear KPIs, policies and commitments to match its positioning as a design-led fashion brand
→ Veronica led the creation and execution of the strategy, driving lower-impact materials to 65% of the range and developing a signature material with over 50% recycled content and a 21% carbon footprint reduction
→ Nanushka won Best Sustainable Brand of the Year with measurable material and carbon improvements delivered
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Strategy
Circular Economy
Fashion
ESG Reporting & Sustainability Communications
Led Unilever's company-wide ESG reporting initiative covering regenerative agriculture and palm oil transition
→ Unilever needed to communicate its sustainability performance transparently across its highest-profile environmental commitments, including regenerative agriculture and palm oil
→ Manuel led ESG reporting across the full business, ensuring transparent and consistent communication of sustainability performance to investors and stakeholders, with a strategic focus on Unilever's two most scrutinised supply chain commitments
→ Disclosure quality and consistency strengthened across the business, with measurable improvement in stakeholder trust around Unilever's sustainability efforts
ESG Reporting
Regenerative agriculture
Regenerative agriculture
Supply chain
Stay ahead of what's mandatory
CSRD
ESRS
Double materiality
SFDR
CSDDD
EU Taxonomy
ISSB
Assurance readiness
UK SRS
Multi juristiction compliance
Limited assurance
Reasonable assurance
ESG governance
Data gaps
Assurance readiness
Companies in scope for CSRD, UK SDS, and other incoming regulation need to move from zero to audit-ready reporting, often without the internal capacity to do so. Our consultants run double materiality assessments, build the reporting architecture to support ongoing compliance, close data gaps across the value chain, and map obligations across multiple jurisdictions. They prepare your disclosures for limited and reasonable assurance, and build the internal processes that make next year easier than this one.
A glimpse of our network in this area:
CSRD, ESG Governance & Sustainability Reporting
Led the strategic development and implementation of Bauer Media Group's CSRD-aligned Sustainability Statement, driving cross-departmental alignment on data quality and governance
→ Bauer Media Group was preparing for CSRD compliance and needed to build its sustainability reporting capability, governance frameworks and data architecture from scratch
→ Rowena led the strategic development and implementation of the CSRD-aligned Sustainability Statement, defined governance frameworks and internal controls, drove cross-departmental alignment on data quality, and managed project risks across auditors, data owners and external consultantsrols for CSRD compliance
→ First CSRD-aligned Sustainability Statement delivered on schedule, with governance, data ownership and internal controls embedded across the group
SBTi
Reduction roadmaps
GHG Protocol
EU Sustainability Regulation & ESRS
Contributed specialist expertise to the development of the European Sustainability Reporting Standards (ESRS) under the CSRD
→ EFRAG, the technical advisor to the European Commission, required specialist input on pollution disclosures and environmental topic standards for the new ESRS
→ Simone provided technical advisory on pollution disclosures (ESRS E2) and other environmental topic standards, developing sector-specific guidance to ensure comprehensive and implementable reporting requirementsRan GHG accounting and full Scope 3 quantification across brand portfolio
→ Direct contribution to the regulatory standards that now govern corporate sustainability disclosure across the EU, with sector-specific guidance adopted into the final ESRS
CSRD
ESRS
EU Regulation
Sustainability reporting
Strategy that satisfies investors and regulators
TCFD
TPT
ISSB
Climate transition plans
Scenario analysis
Physical risk
Transition risk
Energy transition
Decarbonisation strategy
Internal carbon pricing
Just transition
Net Zero roadmaps
Carbon budgets
Investors, regulators, and lenders increasingly expect companies to demonstrate how they will perform under different climate scenarios and what actions they are taking in response. Our consultants build TCFD-aligned disclosures, quantify physical and transition risks, design climate governance structures, and develop credible transition plans aligned to the TPT framework. The work needs to satisfy both the board and the external audience reading it.
A glimpse of our network in this area:
Climate Transition Planning & TCFD
Launched FirstGroup's Launched FirstGroup's inaugural Climate Transition Plan, contributing to a 2.5% share price increase through improved investor confidence
→ FirstGroup needed to develop its first Climate Transition Plan to meet growing investor and regulatory expectations around climate risk disclosure
→ Martin developed and launched the Climate Transition Plan aligned with TCFD and TPT frameworks, assessed and quantified climate risks, and established the foundation for ongoing emissions reduction and risk management
→ Inaugural Climate Transition Plan launched, investor confidence strengthened through credible disclosure, reflected in a measurable 2.5% share price uplift
Transition Plans
Investor readiness
TCFD
Climate risk
Climate risk
Climate Risk & TCFD Advisory
Quantified the financial risks of climate change for Schneider Electric Hungary, aligned with TCFD recommendations
→Schneider Electric Hungary needed to understand and quantify the financial implications of climate change across its operations to inform strategic planning
→ Chintan conducted climate risk modelling to assess financial exposure across physical and transition risk categories, aligning the analysis with TCFD recommendations and providing board-level insight into climate-related financial impacts
→ Financial risks of climate change quantified and presented to leadership, with outputs used to inform strategic planning and climate resilience decision-making
TCFD
Climate risk
Scenario modelling
Transition risk
Compliance and nature-positive strategies
TNFD
TNFD LEAP
SBTN
CSRD E4
GBF
Biodiversity net gain
Nature risk
Dependencies mapping
Ecosystem services
Deforestation
Water stewardship
Marine & Ocean
Soil health
Nature risk is moving from voluntary to regulated, and most companies have not yet started. Our consultants run TNFD LEAP assessments, screen dependencies and impacts across operations and value chains, set science-based targets for nature, quantify natural capital, and build strategies that go beyond compliance. For companies at the beginning of this work, they provide the structure and expertise to move from awareness to action.
A glimpse of our network in this area:
Biodiversity, Environmental Assessment & Nature Strategy
Led biodiversity net gain policy at Defra, including ownership of the biodiversity metric calculation that now underpins BNG compliance across England
→ Defra needed specialist expertise to develop and refine the policy framework for biodiversity net gain, one of the most significant changes to England's planning and development regime
→ Emily served as senior policy advisor leading on the biodiversity metric calculation spreadsheet, drawing on six years of BNG consulting experience to bridge technical methodology with workable policy
→ The biodiversity metric is now the standard calculation tool used across England for BNG compliance, shaping how every major development project accounts for its impact on nature
BNG
Biodiversity
Environmental Assessments
Climate Strategy, SBTi & Environmental Reporting
Achieved triple-A CDP scores on Climate, Forests and Water for three consecutive years for Kering
→ Kering needed senior specialist capacity to manage its climate strategy, GHG accounting, SBTi submission and environmental reporting across a complex luxury group
→ Hélène acted as dedicated Sustainability Advisor and Head of Climate & Environmental reporting, leading full GHG accounting and Scope 3 quantification, advising on SBTi submission including FLAG pathways, and managing TCFD and CSRD reporting
→ Triple-A CDP scores achieved on Climate, Forests and Water in 2023, maintained through 2025 for a third consecutive year
TNFD
LEAP
SBTN
FLAG
Visibility, compliance, and supplier transformation
CSDDD
OECD
UNGPs
Supplier engagement
Scope 3 supplier data
Traceability
Responsible sourcing
Human rights DD
Modern Slavery
Procurement policy
Supply chain mapping
Soil health
With growing stakeholder expectations, supply chain risk has become a board-level concern. Our consultants design due diligence systems aligned to OECD Guidelines and UNGPs, run supplier engagement programmes at scale, build traceability from raw material to finished product, and collect the Scope 3 supplier data that your reporting and reduction targets depend on. The work spans environmental performance, human rights, and responsible sourcing.
A glimpse of our network in this area:
Industrial Decarbonisation & Collaboration
Scaled the WEF's Industrial Clusters initiative from inception to 20 members across four continents, advancing global decarbonisation efforts
→ The World Economic Forum needed to build and expand a collaborative initiative bringing together industrial clusters from diverse regions to accelerate decarbonisation in heavy industry
→ Joanna built and expanded the initiative to include 20 members from the US, Asia, Australia and Europe, fostering collaboration between major clusters including Port of Antwerp and H2Houston
→ Initiative scaled to 20 members across four continents, with a strategic framework advancing global decarbonisation efforts across heavy industry
Decarbonisation
Energy transition
Industrial strategy
Supply Chain Sustainability & Sustainable Packaging
Drove Avon International's packaging to 80%+ reusable, recyclable or compostable across 30+ markets, with 10% post-consumer recycled content achieved
→ Avon International needed to transform its packaging footprint across 30+ markets, balancing sustainability targets with the complexity of a global supply chain
→ Natalie embedded sustainable packaging standards across the business, achieving 10% post-consumer recycled content and driving over 80% of packaging to reusable, recyclable or compostable formats
→ Packaging transformation delivered at scale across all markets, demonstrating that sustainable sourcing standards can be implemented globally without compromising commercial performance
Sustainable packaging
PCR
Supply chain
Circular economy
Senior capacity when you need it most
Fractional CSO
Sustainability Strategy
Project leadership
Board advisory
Team build-out
Change management
Stakeholder engagement
Strategy development
Strategy development
Sometimes the gap is not expertise but capacity and seniority. We place fractional CSOs, interim sustainability directors, and senior project leads who embed in your team, take ownership of delivery, build internal capability, and maintain momentum through transitions, restructures, or peak reporting periods. They bring the experience of having led sustainability programmes at scale, without the commitment of a permanent hire.
A glimpse of our network in this area:
Fractional CSO Services
Established fractional CSO leadership for Freddie's Flowers covering B Corp certification and overal strategy
→ Freddie's Flowers needed senior sustainability leadership to set strategic direction and coordinate across the business, but did not need a full-time hire
→ Rick embedded as fractional CSO, developing the sustainability strategy, coordinating cross-functional workstreams, and managing stakeholder engagement across the certification process
→ B Corp certification achieved, with a sustainability strategy and internal alignment in place to sustain momentum beyond the engagement
Fractional Leadership
Strategy
BCorp
Fractional Social Impact & Sustainability Leadership
Set up eBay's first social impact team and launched eBay for Change, supporting approximately 400 social enterprises
→ eBay had no dedicated social impact function and needed senior leadership to design, build and launch a programme from scratch
→ Chris established the team, spearheaded the development of eBay for Change, and built the partnerships and operational framework to connect social enterprises with eBay's marketplace at scale
→Approximately 400 social enterprises supported with improved market access, establishing eBay for Change as a flagship programme and demonstrating that impact can be embedded into a commercial platform
Fractional Leadership
Functional build
Social impact
HOW IT WORKS
Share your brief, find the right consultant and start work in as little as 48 hours.
Step 01
Describe the project — what you need, when, and any sector or framework requirements. Dont't worry about having something polished, we will help you build it out.
Define the scope
Step 02
Within 48 hours, we'll deliver a shortlist of 3-5 specialists who’ve done exactly this work before, in your sector. You review profiles, interview who you want and choose who fits best.
Custom-picked specialists
Step 03
Your specialist can lead a project independently, work as part of your team, or advise from the sidelines. We handle contracts, invoicing, and quality throughout. You get the capacity and expertise you need, for exactly as long as you need it
All admin managed for you
You're in control. Every engagement starts with a risk-free trial period. If the fit isn't right, we'll replace your specialist immediately. And if the project grows, extending can be done in 3 clicks.
Risk free trial
