Independent Firms,
One Advisory Business.
Today’s organisations face challenges that increasingly cross disciplines, industries and borders. The expertise needed to address them rarely sits within a single firm.
Global Advisory Alliance connects independent advisory firms with complementary expertise - giving clients access to trusted specialists while enabling members to collaborate, share knowledge and extend their reach.
Our mission is to build a stronger model for independent advisory: globally connected, collaborative and influential.

Build trusted relationships with complementary firms, pursue new opportunities and extend what your firm can offer.
Why join GAAGrow Independently.
Build Together.
Extend Your Reach
Build trusted relationships with independent firms across markets, disciplines and regions.
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01
Pursue Opportunities Together
Work with complementary firms on opportunities, client challenges and propositions where combined expertise creates greater value.
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Build New Capabilities
Combine expertise to develop research, executive education, initiatives and new advisory propositions.
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Strengthen Your Profile
Share your expertise through Alliance research, events and initiatives reaching boards, investors and business leaders.
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Global Expertise. Local Insight.
Specialist knowledge, grounded in local markets and connected across 20+ countries.
Find an AdvisorExpertise for Complex Decisions
From governance and investment to sustainability, risk and transformation, access specialist expertise for the decisions that matter.
Capital & Investment Advisory
Providing independent insight to support investment and capital allocation decisions.
Governance & Board Effectiveness
Strengthening oversight, accountability, and strategic decision-making.
Risk & Resilience
Preparing institutions for an increasingly complex global environment.
Leadership & Organizational Effectiveness
Building stronger leadership, culture, and organizational performance.
Capital & Investment Advisory
Providing independent insight to support investment and capital allocation decisions.
Governance & Board Effectiveness
Strengthening oversight, accountability, and strategic decision-making.
Risk & Resilience
Preparing institutions for an increasingly complex global environment.
Leadership & Organizational Effectiveness
Building stronger leadership, culture, and organizational performance.
Research & Perspectives.
Meet the founders, managing directors and senior advisors who lead GAA member firms and advise clients across markets, sectors and disciplines.
Meet the People Behind
the Alliance.
Stewardship Professionals e.V.
Governance & Values GmbH

Dr. Catherine Marchewitz
Senior Advisor
View Advisor
Our Partners







GAA has grown from an idea for greater collaboration between independent advisers into an international alliance creating research, executive learning, investor initiatives and opportunities for cross-border collaboration.
The Alliance in Action
Built an International Advisory Network
20 independent advisory firms across five continents, with expertise spanning corporate governance, proxy advisory, stewardship & engagement, responsible investment, climate & sustainability, risk & resilience, M&A & transactions, and digital, AI & transformation.
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Launched an Investor Engagement Initiative
GAA launched the Defence Transparency Engagement Initiative to help institutional investors improve defence disclosures. Backed by four anchor investors managing €140 billion, the initiative will engage directly with companies and data providers.
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Established the GAA Academy
We have created an executive learning platform that turns senior practitioner expertise into practical programmes for boards, investors and leadership teams across governance, investment, sustainability and risk.
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Expanded Our Reach Through Partnerships
GAA has partnered with the Corporate Secretaries International Association - representing over 100,000 governance professionals worldwide -to deliver joint research, executive briefings, and practical initiatives for the global governance community.
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