Directory/Liam O'Sullivan

Liam O'Sullivan

Legal Director

Harmon & Cross LLP

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With deep expertise in development finance, Liam O'Sullivan at Harmon & Cross LLP has built partnerships across Australia and beyond. Their work centers on aligning capital with measurable social and environmental outcomes.

Geography

Australia

Actor Type

Legal Specialist

Years in Impact Space

Preferred Contact

Through C4I

Development Stage

Mature

Year Founded

2001

Website

harmonandcrossllp.io

Expertise Areas

Development FinancePolicy Design & Advocacy

Intervention Points

Impact Measurement

Measurement & Understanding — Measuring and managing impact performance across portfolios and investments using robust frameworks.

leading

Alternative Approaches & Narratives to Wealth

Culture & Awareness — Challenging dominant wealth narratives and promoting alternative approaches to wealth creation and distribution.

leading

Wealth Holder, Advisor, Manager Education

Culture & Awareness — Educating wealth holders, advisors, and fund managers about impact investing and systems change.

leading

Full-Cost Accounting, Reporting & Regulation

Measurement & Understanding — Implementing full-cost accounting, integrated reporting, and regulation that captures externalities.

supporting

Alternative Ownership Models

Community & Enterprise — Advancing steward ownership, cooperatives, and other models that prioritize purpose over extraction.

supporting

Impact Understanding

Measurement & Understanding — Deepening understanding of systemic impact patterns, coordination needs, and ecosystem dynamics.

leading

Network

Theory of Change

By creating transparent, standardized impact measurement tools, we aim to remove the information asymmetry that prevents wealth holders from confidently allocating capital to impact-first vehicles.