Tarini Mehta and Partners is a leading consultancy specialising in ESG audit and assurance, climate and sustainability advisory, EIA implementation, environmental clearance support, and broader environmental and social compliance. The team delivers practical, strategic guidance to clients across India and internationally, helping organisations navigate evolving sustainability expectations with clarity and confidence.
Sustainability is core to business and one of the most important challenges facing companies. A challenge that of course involves risks - but also great opportunities to grow the business and leave a positive legacy for future generations.Sustaimpact approach is that sustainability must be built into the core of the business. Otherwise, it is unlikely that we will create a real impact.
Seawolf Sustainability Consulting works as a translator between climate and finance. We cover a wide range of topics such as, Greenhouse-Gas accounting, Net Zero, Voluntary Carbon Markets, Blue Carbon, Renewables, Clean Energy and a Just Transition.
TideMRV is an AI-powered digital platform that automates blue carbon credits projects, from pre-planning through credit generation. We reduce costs and compress timelines, making blue carbon projects financially viable sooner.
Verdensure supports project proponents, developers, and delivery teams when environmental, social, and safety risk begins to determine whether a project can proceed.
With 25+ years across mining, forestry, energy, infrastructure, and nature based markets in more than 30 countries, we translate field realities and global standards into clear, defensible direction.
Kamolyn advises organisations across the UK and Western Europe on strategy, governance, and operational performance. Led by a Chartered Accountant and former EY Director, Keith Morrow, it delivers focused support to align strategy with execution, strengthen reporting, and improve decision-making.
Zenvest Partners supports companies on investor relations, shareholder defence, and governance strategy. With international expertise across finance and communications, the team helps clients navigate activist pressure, strengthen investor positioning, and build resilient, long-term shareholder relationships.
Sustainability Advising & ESG Services. As a global leader in sustainability and ESG strategies we are committed to driving growth that empowers the regenerative capacities of people, planet, and profits.
At SILAS (Strategic Impact Leadership Advisory Services), we embrace a holistic approach to business strategy and advisory. We understand that businesses operate in complex, evolving landscapes where sustainability, social impact, and resilience are not just ideals but essential to long-term success.Our approach goes beyond compliance, we help organizations integrate sustainability into their core strategy to drive meaningful impact and competitive advantage.
Flora Advisory is an independent advisory practice supporting foundations, family offices, and small to mid-sized financial institutions on sustainable investment governance and decision-making.The focus of our work is on how sustainability considerations are integrated into investment policies, governance structures, and risk oversight to support long-term value creation. We work at board and investment committee level, providing independent, judgment-led advice rather than implementation or reporting services. Flora Advisory operates internationally and is currently based in Spain.
Many organisations face growing technology and risk challenges.I f cybersecurity and data privacy risks are unclear, a focused assessment can highlight key exposures and define practical actions and resilience steps. When systems are fragmented or acquisitions are planned, integration brings better data access and cost control. Rising vendor spend without clear value often signals the need for stronger oversight. Legacy systems can slow growth, while unmanaged AI use creates new risks that require clear structure and guidance.
ROSS Services Ltd supports organisations in managing ESG data across complex value chains, shaping strategy, reporting, and scrutiny. Using accessible tools and AI-enabled systems, ROSS integrates and automates data flows aligned with leading frameworks. Existing systems are connected to reduce manual work and errors. Services cover integration, visualisation, audit readiness, and assurance. Flexible delivery includes build-transfer, managed systems, or fully outsourced ESG data and advisory support.
PurposefulPathway is an organizational psychology consultancy focused on ethical leadership, resilience, and well-being. Offering human-centered Operations and Development services, it combines private practice attentiveness with consulting flexibility. By aligning people and processes, PurposefulPathway promotes sustainable growth and workplace satisfaction, providing trusted insights and impactful solutions for organizational challenges."
Lozena Sustainability Consulting, led by Kathrine Nasteva, is a sustainable fashion consultancy advising luxury brands on sustainability strategy and supporting large international organisations, management, and advisory firms on private sector development projects across textiles, apparel, and footwear.It provides sustainable fashion consulting for brands, firms, and international development projects.

GAA members are established boutique firms and senior professionals selected for their specialism, their geography, and their track record of client delivery.When you join, your name stays yours. Your clients stay yours. What GAA adds is the collective reach to collaborate on opportunities and the credibility of a global network behind every proposal you send.
+ Cross-border reach
Access a curated network of specialist firms across five continents. When your client needs expertise beyond your geography, the answer is already in the room.
+ Opportunities you couldn't take on alone
Some opportunities require a team across disciplines and borders. GAA members collaborate — combining specialisms without compromising independence.
+ Strengthened Brand and Reputation
Gain association with a credible, international alliance of senior advisors recognised for expertise and integrity. Being part of GAA signals quality, depth, and forward thinking to your clients.
+ Access Shared Visibility and Market Influence
Members are featured as part of the GAA ecosystem on our website, communications, and webinars — amplifying your reach and positioning.

We invite boutique firms and senior independent professionals that:
Operate as an independent boutique firm of 1–50 people, or as a senior independent professional with a demonstrable track record of client delivery.
Bring specialist expertise in governance, stewardship, sustainable finance, climate and nature, ESG reporting, digital transformation, or organisational change - or operate in an adjacent discipline such as accounting, law, or corporate finance where governance, sustainability, and transformation are central to the clients you serve.
Are ready to collaborate across borders - referring clients, co-delivering mandates, and contributing to a network where complementary expertise serves clients that no single firm could serve alone.

GAA does not have an open application form. Membership begins with an introduction - a short conversation to understand your firm, your specialism, and whether there is a genuine fit. If there is, we will take it from there.