PRINCIPAL, PORTFOLIO OPERATIONS
Mark N. Klaiber
Mr. Klaiber joined Guardian Operations and Advisory Company in 2026 and plays an integral role in operational due diligence, value creation opportunity identification, and working alongside portfolio company management teams post-acquisition to successfully execute against value creation initiatives. Mark also supports and partners with the investment team and portfolio company management teams to evaluate new platforms and add-on acquisitions.
Mark joins Guardian from Inframark where he served as the Senior Vice President for Operations within its operations & maintenance division. Prior to that, Mark was responsible for transformation and operational improvement within SUEZ Water Technologies & Solutions focused on integration and value creation for SUEZ’s acquisition of GE Water & Process Technologies. Before the SUEZ acquisition, Mark spent more than 20 years with General Electric which included leadership of GE Water’s Equipment Service Business as well as responsibility for the Global Field Service Team. Mark is a graduate of GE’s Business Management Course (BMC), Management Development Course (MDC), Edison Engineering Program, and is a Certified Six Sigma Blackbelt.
Mark earned his MBA from Emory University and his Bachelor of Mechical Engineering from Penn State University.

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