Mr. Zeidman serves as Chief Integration Officer, Senior Principal, and member of the Executive Committee at Colliers Engineering & Design. In a firm that has grown significantly through strategic acquisitions, his role is essential: ensuring that every new addition is woven into the organization in a way that preserves culture, maintains momentum, and delivers on the promise behind the partnership.

Craig oversees the full integration lifecycle, from developing timelines and communication plans to executing change management strategies and facilitating cultural alignment. Working closely with the firm’s Mergers and Acquisitions team throughout due diligence, he ensures that integration planning begins well before a deal closes and continues through every milestone until the transition is complete. His approach balances firm-wide consistency with strategies tailored to the unique character of each acquisition.

Before stepping into this role, Craig built the firm’s Telecommunications service line from the ground up, ultimately leading the Telecom and Utility Division as Division Director. Under his leadership, the practice grew to serve all major national cellular providers, carriers, tower companies, and program managers across all 48 contiguous states.