ZweigWhite - Consulting, Publishing, Research, Events and Training for Architecture, Engineering, Planning, and Environmental Consulting Firms

Areas of Expertise

Who We Are

We aren't one of those virtual companies made up of a band of subcontractors or downsized managers between jobs. Our company is a real one, like yours. ZweigWhite combines the skills and knowledge of over 75 talented professionals, all united in their commitment to our mission: making client and customer firms more successful. Here are just a few of our key contacts and experts.

Ian Rusk | President & CEO

Ian Rusk serves as ZweigWhite’s president and CEO, overseeing the firm’s broad array of publications, educational programs, industry conferences and advisory services.

Mark C. Zweig | Founder & Director

Mark Zweig is the leading expert in management for the architecture, engineering, planning, and environmental industry.

John Doehring | Principal & Managing Director

John Doehring advises clients on creating and executing strategic business plans, developing new business prospects, enhancing sales and marketing effectiveness, and improving organizational performance.

Claire Keerl | Vice President

Claire Keerl directs ZweigWhite’s portfolio of management programs, including conferences, seminars, and webinars.

Laura Rothman | Vice President

Laura Rothman is vice president and managing director of ZweigWhite's Research division.

Christine Brack | Principal

Christine Brack designs strategic and tactical initiatives relative to leadership, marketing, organizational structure, and operational improvement, with an emphasis on project delivery-analyzing and optimization.

Steve Gido | Principal

Steve specializes in corporate financial advisory services including mergers and acquisitions, business valuations, ownership transition plans, and strategic planning.

Michael O'Brien | Principal

Michael O'Brien specializes in corporate financial advisory services including business valuation, fairness and solvency opinions, mergers and acquisitions, internal ownership transition consulting, ESOPs, and strategic planning.

Susan Dell Orto | Consultant

Susan Dell Orto specializes in strategic business planning with a focus on marketing and human resource strategy.

Gregory Hart | Consultant

Gregory Hart advises on financial matters such as business valuation, ownership transition planning, mergers & acquisition advisory services, and financial management.

David Yee | Consultant

David Yee is a financial analyst within ZweigWhite’s Financial Advisory Services division