AB Consulting is a boutique sustainability advisory firm specializing in delivering measurable ESG outcomes for infrastructure and real assets investors.

Founded by Joseph Abraham, a senior sustainability practitioner with extensive experience across GRESB assessments, ESG strategy, project lifecycle assessment and climate risk, we provide hands-on, responsive support without the bureaucracy of larger firms.

Our expertise spans infrastructure funds, real estate portfolios, and renewable energy assets, working with institutional investors, asset managers, and developers globally who need strategic, results-driven sustainability solutions.

We focus on what matters: improving GRESB scores, enhancing ESG performance, and creating genuine value for our clients and their stakeholders.