As D&B Engineers and Architects celebrates its 60th anniversary year, we continue our legacy of strong leadership and commitment to excellence.
Effective January 2026, Steven A. Fangmann, P.E., BCEE, will be stepping down as President and CEO of D&B. After more than eight years of unwavering leadership, and 30 total years with the organization, Mr. Fangmann will assume the role of Chairman of the Board of Directors, where he will continue to provide strategic guidance in support of the firm.
Succeeding him as President and CEO will be William “Bill” D. Merklin, P.E., a long-standing leader and current Executive Vice President of the firm. Mr. Merklin is a well-recognized professional within the engineering industry who exemplifies D&B’s core values and forward-focused vision.
It is with great pride that we also announce the promotions of three dedicated executives to new leadership positions, also effective January 2026:
- Philip R. Sachs, P.E. will advance from Vice President of Water Supply to the position of Senior Vice President
- Olga J. Mubarak will advance from Vice President of Wastewater to the position of Senior Vice President
- Christopher M. Koegel, P.E. CCM will advance from Vice President of Construction Management to the position of Senior Vice President
With these promotions in rank, Senior Vice President/Principal Robert L. Raab, P.E., BCEE, CCM with 52 years of experience and 17 years with D&B, and Senior Vice President/Principal Joseph H. Marturano with 50 years of A/E experience and 39 years with D&B, will both gradually shift their roles to newly defined strategic initiatives and client relations positions while mentoring team members and the next generation of D&B executive senior leadership.
These strategically planned transitions reflect D&B’s long-standing tradition of promoting excellence from within, ensuring continuity while maintaining the high standards of exemplary service that define our firm. We are grateful for our staff’s continued dedication, and we look forward to the meaningful contributions they will make in their evolving roles…building upon D&B’s 60 years of success.
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