US sustainability and impact advisory firm, Turbo Net Zero, wins this category thanks to its work supporting more than 50 impact-focused GPs overseeing over $100 billion in assets under management.

Through its propriety 'Build-Operate-Transfer' advisory model and integrated impact-banking capability, the firm says it seeks to help investors move from policy intent to measurable, standards-aligned outcomes. TNZ says it has strengthened impact integrity across funds and portfolios, accelerated capital mobilisation, and enabled LP commitments.

Notable engagements in the awards eligibility period included developing impact frameworks for private-market investors, embedding impact measurement across its portfolio companies, and advising multi-million-dollar capital raises for climate and materials innovators.

One example from past year includes sustainable aviation fuel specialist, EcoCeres, for whom the firm designed a comprehensive impact framework, aligned with global standards-aligned impact frameworks.