Founder and Principal Consultant
Julie “Mae”
Gabato
Practical climate advice, grounded in how your business works.
Mae founded Ledger + Leaf Advisory to turn credible climate data into defensible reporting and practical decisions. She connects customer, regulatory, and capital-provider expectations with business risks, financial impacts, and investment priorities—building on systems and controls your team already uses.
Work with Mae
Experience before founding Ledger + Leaf
30 countries
Sustainability programs led across the Asia-Pacific region.
80+ countries
Reach of emissions-accounting systems Mae developed.
200+ facilities
Led sustainability strategy and reporting across the Americas, including decarbonization planning and climate-risk assessment.
Meet Mae
More than 15 years at the intersection of climate and business.
Mae has led corporate sustainability across global teams and operations. Her experience spans strategic planning, climate finance, emissions-accounting systems, decarbonization strategy, and climate-risk assessment.
Her previous roles include positions at Amazon, the World Bank Group and IFC, the U.S. Environmental Protection Agency, Persefoni AI, and DHL.
She helps leaders connect climate risks and scenarios to financial impacts, credible reporting, and capital priorities. Grounded in financial and operational controls, her approach leaves teams with clear evidence, accountable owners, and practical actions they can carry forward.
The Ledger + Leaf approach
Evidence that holds up. Advice that moves work forward.
A useful engagement leaves your team with stronger information, clear decisions, and a process it can own.
Make the evidence traceable
Document sources, methods, estimates, and limitations so others can understand how a conclusion was reached.
Connect it to the business
Bring reporting, risk, operations, and capital into the same conversation.
Build for continued use
Define owners, review points, and practical next steps that remain useful after the engagement.
A direct working relationship
Work directly with Mae.
Mae works directly with clients to define the business question, assess the evidence, and turn findings into an actionable plan. Specialist input from counsel, engineers, technology teams, or independent assurance providers can be coordinated within an agreed scope.
Explore the servicesBring your next climate decision into focus.
Talk with Mae about your reporting, data, or decarbonization priorities.