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LEADERSHIP TEAM

Stuart Christmas
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Managing Partner, Founder

Stuart is a highly experienced and accomplished construction professional with over 17 years experience in New York, having formerly worked for a top construction consultancy in Manhattan.

He has proven success in whole Project and Cost management from inception to completion, and beyond, with a strong track record of successfully delivering a wide variety of construction projects, ranging from commercial interior fit out, retail, cultural, hospitality, sports stadia and core and shell projects and from 2,000 SF to over 1,000,000 SF.

Stuart delivers executive leadership and tailored Owner’s Representation on complex and budget-conscious projects. Having completed a Masters in Cost Estimating and Construction Management, and being a distinguished Member of the Royal Institution of Chartered Surveyors, Stuart’s foundation and deep understanding of Cost Management give him a rounded skill set as an Owner's Representative and underscore him as an expert in his field.

As founder of Adventus, Stuart is committed to building lasting partnerships and driving successful project outcomes for his clients.

David Guajardo
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Managing Partner

With 14 years of experience in New York City, David has built a strong track record in construction and real estate project delivery at a leading consultancy firm, where he led complex developments across multiple sectors.

David’s depth of expertise in Project and Cost Management extends beyond commercial real estate and includes fast-paced retail projects, ground-up construction, and large-scale public projects.

David has proven success working directly with C-suite executives, ensuring project goals align with broader business strategies and managing timelines, budgets, and cross-functional teams with precision.

As managing partner of Adventus, David is focused on shaping high-impact projects through collaboration, integrity, and a commitment to delivering long-term value for every client.