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 creating new opportunities for 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.

Through GAA, independent firms gain the relationships, reach, knowledge and platform to grow their capabilities, pursue new opportunities and raise their international profile.
Read moreA Platform Built for Independent Excellence.
Independent Advice
Independent firms, backed by the relationships, reach and resources of an international alliance.
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01
Stronger Together
We connect complementary firms across disciplines, industries and regions - creating opportunities to collaborate, share knowledge, develop capabilities and deliver more together.
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02
Expertise Without Borders
Clients gain access to trusted specialists across disciplines and markets, combining local knowledge with international perspective.
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03
A Collective Voice
GAA brings together independent perspectives, research and expertise to contribute to the issues shaping global business and investment.
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04
Global Expertise. Local Insight.
GAA’s members form a diverse network of independent advisory firms across major global markets. They combine deep regional expertise with a shared commitment to independence, integrity, and excellence.
Find an AdvisorExpertise for Today's Most Challenges
GAA brings together independent specialists across disciplines, sectors and markets to help boards, investors and leadership teams navigate complex strategic decisions.
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 and perspectives from across the Alliance.
Meet the founders, managing directors and senior advisors who lead GAA member firms and advise clients across markets, sectors and disciplines.
A Global Alliance of Leading Independent Advisory Firms.
Stewardship Professionals e.V.

Dr. Catherine Marchewitz
Senior Advisor
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