Solve better. Go further.

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.

430+
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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Erik Mas
Our work to strengthen the resilience of infrastructure, natural systems, and communities is core to our mission of collaborating with clients to create solutions that enhance quality of life and shape a better future.
Erik Mas, PE
Senior Vice President, Resilience Market Leader