IAOS is more than a sustainability consulting company. It is a firm that helps organisations envisage and deliver their sustainability strategies on measurable, impactful outcomes, helping them plan ahead – enabling their operations to be truly sustainable.

Founded in 2012 by Chief Executive, Stephen Smith, the company, was established to help organisations unlock the value of sustainability with the core capability being impact measurement. Building on this foundation of impact, together with its ecosystem of expert partners, IAOS offers end-to-end sustainability solutions—from strategy and analytics to implementation and transformation. If it’s sustainable, we can do it.

With over 20 years of experience across corporates, development institutions, and public sector programmes, IAOS understands how to bring rigour, relevance, and clarity to complex sustainability work.

Our proprietary IAOS Impact Framework enables our clients to measure what matters — environmental, social and governance-related impact— enabling you to make better decisions, build trust, and deliver results.

“At IAOS, every action counts, every investment matters, and every outcome tells a story of progress.”