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Business Details
50+ Years
experience
Trusted Engineering Solutions for Sustainable Development
Since 1924, Fuss & O'Neill has been dedicated to delivering innovative engineering solutions that address complex challenges in the built and natural environments. With over 400 professionals across multidisciplinary fields, we prioritize sustainability, client-specific strategies, and holistic problem-solving. Our expertise spans civil engineering, environmental remediation, structural design, and climate resilience, supported by a commitment to science-based decision-making and community engagement.

We operate as a cohesive team, ensuring fiscal responsibility while advancing projects from concept to completion. Our track record of over a century reflects our adaptability to evolving industry needs and our unwavering focus on long-term environmental and economic resilience.
Services
Civil Engineering Environmental Remediation Structural Design Climate Resilience Transportation Planning Water Treatment Construction Management Landscape Architecture Geospatial Analysis Facility Engineering
Details
  • Year established: 1924
Highlights and features
  • We offer comprehensive engineering services across 10+ specialized disciplines.
  • Our 100+ years of experience informs innovative solutions for complex projects.
  • We maintain a multidisciplinary team of 400+ licensed professionals.
  • Our focus on climate resilience integrates sustainable practices into all projects.
  • We provide end-to-end support from feasibility studies to construction management.
Services
Civil Engineering
Our civil engineers deliver site planning, utility infrastructure, and land development solutions for residential, commercial, and municipal projects. We manage permitting, stormwater systems, and GIS mapping to ensure code compliance. Our multidisciplinary approach optimizes project outcomes from initial assessment through construction completion.
Environmental Remediation
We address hazardous materials, brownfield redevelopment, and emerging contaminants using EPA-compliant strategies. Our team designs soil remediation systems, manages asbestos/lead abatement, and delivers air quality solutions. We specialize in regulatory compliance and sustainable site restoration for industrial and municipal clients.
Structural Engineering
Our structural engineers design bridges, dams, parking structures, and building systems meeting safety codes and longevity requirements. We provide forensic evaluations, seismic retrofitting, and load analysis for new construction and historic renovations across public infrastructure and private developments.
Water Treatment
We design decentralized wastewater systems, potable water distribution networks, and advanced treatment plants. Our engineers implement SCADA controls, nutrient removal processes, and climate-resilient infrastructure improvements to ensure safe, sustainable water management for municipalities and industrial clients.
Climate Resilience
We develop adaptation plans for climate-related risks including coastal flooding and extreme heat events. Our services include vulnerability assessments, green infrastructure implementation, and renewable energy integration to enhance community and infrastructure resilience across urban and natural environments.
People
David Formato
Senior Vice President, Water and Wastewater Business Line Leader
With decades of experience in water infrastructure, David leads sustainable water/wastewater projects across New England. He specializes in environmental compliance and community-focused engineering solutions that enhance water quality and ecosystem protection.
Erik Mas
Vice President, Water and Natural Resources Business Line Leader
Erik directs climate resilience initiatives focusing on flood mitigation and ecosystem restoration. He applies technical expertise in hydrology and environmental engineering to develop adaptive solutions that increase community preparedness and ecological health.
Questions
What engineering services does Fuss & O'Neill offer?
We provide civil, environmental, structural, transportation, and water/wastewater engineering services along with climate resilience planning and construction management.
How does your company handle climate resilience projects?
Our team integrates nature-based solutions, conducts vulnerability assessments, and develops adaptation strategies to address climate change impacts on infrastructure and ecosystems.
Do you work with both public and private sector clients?
Yes, we serve municipalities, state agencies, private developers, manufacturers, and NGOs across various infrastructure and environmental projects.
What geographic areas do you serve?
We operate throughout the Northeastern United States with offices in Connecticut, Massachusetts, New York, New Hampshire, Maine, Rhode Island, and Vermont.
What career opportunities exist at Fuss & O'Neill?
We offer engineering, environmental science, design, and technical roles with opportunities for professional development and participation in diverse, impactful projects.
Reviews (1)
John Martelly
May 05, 2016 Report
Good company. Great people. An engineering firm that actually returns phone calls. I realize you think that's absurd but it is true.