Solve better. Go further.

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Holistic Approach, Tailored Solutions

Looking through a multidisciplinary lens, Fuss & O’Neill creates comprehensive and forward-thinking solutions that meet our clients’ needs today, tomorrow, and for years to come.

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Years

Experience is our foundation for innovation.

100+
Professionals

Diverse perspectives with a common goal of progress.

400+
Offices

Strategically located to deliver results.

12

Sites Transformed

Taking pragmatic steps, based on science, our experience, and project goals, to realize and pursue the potential in every site.

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Our Experts

Integrating diverse areas of expertise to overcome challenges, design solutions, and create impactful change.

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Diane Mas, PhD, REHS/RS, CC-P, Chief Resilience and Sustainability Officer
My work supports communities, businesses, and organizations adapt to, and mitigate the impacts of, climate change and promote sustainable development using sound science, forward-thinking planning, and innovative engineering.
Diane Mas, PhD, REHS/RS, CC-P
Vice President, Chief Resilience and Sustainability Officer