Cornerstone International Group was founded in 1989 and is a recognized HR partner by Forbes and Hunt Scanlon and an accredited global member of the Association of Executive Search and Leadership Consultants (AESC). With 60 offices in 40 countries, we enable our clients to succeed locally and grow worldwide. Strategic Talent Acquisitions, Coaching Managers to Leaders, and Career Transition Supports are the three critical business solutions we provide. ADD CORNERSTONE. ADD GROWTH.
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Cornerstone International Group Questions
The Cornerstone International Group annual revenue was $7.7 million in 2026.
William Guy is the Founder, Chairman and CEO of Cornerstone International Group.
152 people are employed at Cornerstone International Group.
The NAICS codes for Cornerstone International Group are [54161, 56, 541, 5416, 54, 541611].
The SIC codes for Cornerstone International Group are [73, 736].
Top Cornerstone International Group Employees
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5+
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23
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Gulsah Hammas
Managing Partner at Cornerstone International Group
Istanbul, Istanbul, Turkey25+ -
15+
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