Fusion CSO | Experienced sustainability advisory

Expert advisory, minus the excess

Fusion CSO is a boutique climate and sustainability consulting firm working directly with clients, or in partnership with leading consultancies, law firms and deal teams. We run our business the same way you run yours - expertly, efficiently, and with integrity.

Seasoned pros. We are a network of senior leaders in the second half of their careers, combining a portfolio of advisory, board, and project-based work.

Commercially minded. We've sat in your seat and understand what it takes to deliver real business outcomes. We operate as an extension of your leadership team, providing practical, commercially-grounded, Board-ready sustainability advice.

Lean structure, lower cost. We don't carry the overhead of full-time staff, and we don't use your business as a training ground for graduates.

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Executive & leader support
Tool up with the frameworks, insights, and real-time counsel needed to lead on sustainability.

Sustainability Leadership as a Service (LaaS)
AGM & reporting seasons support.
Board & executive sustainability training.
Legal counsel support (Technical advice).
Sustainability war-games.
24/7 crisis advisory.
Media engagement.
100-day planning for new executives.
Mentoring for young leaders.
RFP/proposal development support.
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Sustainability commercial strategy
Embed sustainability in your strategy and operations - but in a commercially sensible way.

Sustainability strategy, materiality & Action Plans.
Climate scenario analysis, adaptation & resilience planning.
Net Zero & decarbonisation pathways (Transition Plan).
Greenwashing risk review.
Sustainability reports & comms.
Peer benchmarking.
ESG governance frameworks.
Impact investment & philanthropy.
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M&A and investment readiness
Protect value and reduce deal risk with buy/sell side ESG due diligence and transaction readiness.

ESG red flag review.
Regulatory preparedness.
ESG data room pack / Narrative development.
Remediation roadmap.
Valuation impact analysis.
Climate disclosure / Transition Plan assessment.
Strategic alignment review.
Post-deal integration playbook.
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Investor & regulatory disclosures
Navigate complex reporting requirements with confidence, accuracy and credibility.

AGMs & annual reporting.
Regulatory disclosures (ASRS/ISSB/CPG229/CPS230).
GHG emissions accounting.
Modern Slavery Act & TNFD assessment and disclosure.
ESG benchmarking & ratings support.
ESG data systems procurement.
KPI & metrics design.
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Operational risk & supply chain
Mitigate operational risks through sustainable, transparent, and resilient supply chains.

Supply chain ESG risk assessment.
Business continuity & crisis management.
Sustainable procurement frameworks & cost analysis.
Supplier due diligence & audits.
Modern Slavery Act compliance.
Workforce safety & ESG integration.
Employee engagement programs.
Technology & data platforms for supply chain reporting.
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Why Fusion CSO?

Experienced

Genuine experts with decades of experience in business, sustainability, NFP and climate risk with listed/unlisted companies and government.

Trustworthy

If we aren't the best people for the job, we will connect you with the people who are.

Commercial

We are pragmatic not dogmatic - relentlessly focused on your revenue, costs, risks and business resilience.

Cost-effective

With lower overheads we charge considerably less than the Big-4 audit firms.

How we work

Our approach is built on agile, outcome-driven partnerships — from retained advisory and defined projects to interim leadership and specialist support — ensuring you have the right capability at the right time.

We deploy senior, hands-on experts to be part of your team, and can slot in alongside traditional large consultancies, law firms or deal teams on larger or more specialist projects.