About Ad Esse
Led by Dr Jennifer Rayner, Ad Esse is an impact-driven consultancy that helps create positive policy change.
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Policy: Insightful, evidence-based advice on climate, energy and economic policy, grounded in deep knowledge of Australia's political and regulatory landscape.​
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Advocacy: Strategic guidance to shape public debate, influence decision-makers, and build the coalitions needed to drive change.
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Strategy: Sharp, creative thinking to help chart the path from vision to impact - translating complex goals into actionable plans.
Dr Jennifer Rayner is a strategist and policy expert with almost two decades of experience at the intersection of policy, politics and advocacy.
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Jennifer specialises in climate, energy and economic policy, bringing a sharp strategic mind, deep subject matter expertise, and a strong understanding of Australia’s political landscape.
She is known for her ability to cut through complexity, build a compelling case for change, and design strategies that shift debates and deliver real reform.
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Jennifer has previously held senior roles with leading Australian climate organisations including the Climate Change Authority and the Climate Council; advised federal and state politicians as a Chief of Staff and senior policy adviser; and worked closely with clients across Commonwealth and private sector agencies.