At Clashmore Partners, we believe in having a team of driven and forward-thinking individuals with a shared purpose to ignite your leadership and drive lasting change within your organization. Mike Sullivan’s blend of strategic insight, fundraising expertise, and people‑centered leadership forms the foundation of our advisory approach. Anne Griffith’s mission‑margin specialization and deep nonprofit experience build on that foundation, expanding our team’s capacity to help organizations strengthen culture, sharpen strategy, and achieve sustainable growth. Together, their experience and expertise offer a balanced, values‑aligned partnership that equips leaders and teams to thrive.
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Founder

Areas of Expertise
Executive coaching, peer advisory board membership, non-profit consulting
Experience
Mike Sullivan is an executive coach and strategic advisor who helps leaders and organizations strengthen their culture, sharpen their strategy, and elevate their performance. With a career rooted in relationship‑building, team development, and philanthropic growth, he brings a grounded, people-first approach to leadership and organizational transformation.
Mike spent more than two decades in senior leadership roles shaping large, complex teams and driving mission‑critical initiatives. His work has included leading high‑performing fundraising teams, designing engagement strategies for diverse stakeholder groups, guiding long‑range planning efforts, and building systems that translate vision into measurable outcomes.
Mike’s early career as an educator and championship-winning coach continues to shape his approach: develop people, build strong relationships, and create structures that support excellence. He blends strategic insight with a deep understanding of human behavior and team dynamics, grounded in trust, accountability, and the belief that great leadership is ultimately about elevating others. Known for exceeding ambitious revenue goals and cultivating strong internal cultures, he has a track record of helping organizations grow with clarity and purpose.
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Fundraising Consultant
Areas of Expertise

Strategic planning, fundraising and major gifts, non-profit consulting and scaling
Experience
Anne is a relationship-oriented strategic advisor and culture-builder focused on helping non-profits bridge the gap between their mission and operational reality. She brings over 30 years of experience with Fortune 500 healthcare companies, top-tier global universities, and regional non-profits. Her career spans a diverse range of senior positions, including sales, marketing, and executive management.
Anne’s broad background allows her to specialize in the critical intersection of mission and margin, ensuring organizations remain financially sustainable while staying true to their core vision. She is recognized for her ability to build resilient, accountable cultures and identify and develop top-tier talent. She has a proven track record of driving significant revenue growth, having led teams to record-breaking annual production. Her expertise extends to navigating complex organizational shifts, such as rebranding regional institutions, organizational restructuring, and managing large-scale responses to global challenges.
Anne is dedicated to helping non-profits scale effectively through enhanced board governance, robust fundraising, and organizational effectiveness. By focusing on charting bold, results-focused courses, she consistently helps the organizations she serves exceed their objectives and build purpose-inspired, lasting impact.
Connect with Clashmore Partners for access to hands-on executive coaching and consulting with business leaders with proven track records in developing leaders and creating systems that support excellence and lasting impact.