Castleray
Castleray
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The Firm

Boutique Multi-Asset Investor

For 20 years, Castleray has invested in multiple asset classes, beating S&P 500 annual returns. We are a multi-asset investor because opportunities don't present themselves in single asset classes.


Our approach is rational and flexible.

Leadership & Financial Backing

Charles Diawara, Managing Partner

Charles Diawara, Managing Partner

Charles Diawara, Managing Partner

Mr. Diawara co-founded Castleray in 2005 and built the business, multiplying capital by over 15x. Charles continues to co-manage the firm. Prior to Castleray, Charles worked for Lazard doing mergers and acquisitions and Bain Consulting advising Fortune 500 companies. He obtained his Bachelor of Science in Industrial Engineering from Georgia Tech and his MBA from Harvard Business School.

Derek Lewis, Managing Partner

Charles Diawara, Managing Partner

Charles Diawara, Managing Partner

Mr. Lewis co-founded Castleray in 2005 and built the business, multiplying capital by over 15x. Derek continues to co-manage the firm. Prior to Castleray, he started and sold a technology company. Derek started his career at Accenture. He obtained his Bachelor of Science in Chemical Engineering from The University of Arizona and his MBA from Harvard Business School.

Operating Leadership

Operating Leadership

Operating Leadership

Castleray's several hundred employees create value everyday for our value chain, and our operating leaders are seasoned managers with average tenure above 15 years.

Financial Backing

Operating Leadership

Operating Leadership

Our operating companies are limited partners in our investments, along with family offices and high-net-worth individuals. We also maintain relationships with super-regional banks for financing.

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