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GCS SIGAL
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        1. Base Building / Multi-Family
        2. Government
        3. Interiors
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Leadership

Gabe Oliver

Partner

Michael Sigal

President & Partner

Dan Waldo

Partner

Mark Abbott

Mark Abbott

Senior Vice President
https://www.linkedin.com/in/mark-abbott-553244b1/
Katie Phillips

Katie Phillips

Director of Human Resources
https://www.linkedin.com/in/katherinephillips/
Sabir Syed

Sabir Syed

Director of Finance
https://www.linkedin.com/in/sabir-syed-6852071b/
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© 2022 GCS, Inc. DBA GCS-SIGAL 1140 3rd St NE, Suite 320, Washington, DC 20002, 202.944.6600

President Theodore Roosevelt laid the original McKinley Building’s cornerstone in 1902