Public engineering firm profile
Seattle, WA
Engineers who are great communicators.
FSi Engineers is an MEP engineering practice founded in 1985, originally established to serve Boeing. It has grown to serve public, industrial, and community facilities from its offices in Washington State and Maryland. The team specializes in mechanical, electrical, fire protection, and plumbing engineering, alongside specialty services such as energy modeling, computational fluid dynamics airflow analysis, commissioning, and deep sustainability consulting. FSi Engineers is known for its focus on clear business communication, sustainable designs, and long-term client relationships.
Design of HVAC, industrial ventilation, heat pumps, boilers, and electrification systems for complex public, industrial, and community buildings.
Power distribution, lighting, and specialty technology systems design for applications ranging from industrial operations to public spaces.
Engineering for domestic water, sanitary waste, stormwater, and process piping systems, ensuring compliance with strict environmental and permitting codes.
Code-compliant detection and suppression systems that protect lives, facilities, and valuable equipment from fire hazards.
Comprehensive building energy analysis, baseline modeling, and efficiency retrofits to lower utility costs and verify code compliance.
Sustainability-focused consulting and MEP engineering for high-performance buildings, supporting certifications such as Phius and the Living Building Challenge.
Computational fluid dynamics modeling to evaluate natural ventilation, optimize window placement, and control air patterns in sensitive environments.
Work in this area is organized into supported delivery tasks.
On-site investigations and equipment life-cycle analyses that provide stakeholders with detailed reports for capital budgeting and master planning.
Technical assessments, cost estimation, and life-cycle costing to guide early-stage decision-making for facility renovations and additions.
Mukilteo, WA | Washington State Ferries | Transit
Mechanical engineering including energy modeling and computational fluid dynamics (CFD) airflow analysis for natural ventilation on an eco-friendly ferry terminal serving Washington State Ferries and Coast Salish tribal stakeholders.
View project sourceSeattle, WA | Seattle Children's Hospital | Healthcare
Mechanical engineering for a new 35,000-square-foot pediatric healthcare clinic owned by Seattle Children's Hospital, located on the first two floors of Othello Square.
View project source2016 | Seattle, WA | Facing Homelessness | Affordable Housing
Pro bono mechanical engineering to help design 125-square-foot backyard homes certified as Living Buildings by the International Living Future Institute to address homelessness.
View project sourceRichland, WA | Washington State University | Education
MEP engineering and winery systems design for the Ste. Michelle Wine Estates WSU Wine Science Center, a state-of-the-art research and teaching facility.
View project sourceSeattle, WA | Education
Sustainable MEP design for a high-performance cafeteria featuring state-of-the-art sustainable design.
View project sourceBoyds, MD | Education
MEP engineering for a net-zero energy and water environmental education center, incorporating mini-splits, hand-washing plumbing, rainwater collection for a green wall, UV purification, a composting toilet, and performance-based solar design.
Seattle, WA | Fran's Chocolates | Food & Beverage
MEP engineering for a precise environmental control facility inside a historic, abandoned brewery brick building, meeting demanding standards for confections and high sustainability.
View project sourceSouthwest Suburban Sewer District | Wastewater
Renovation and MEP design to replace and relocate the digester at a wastewater treatment plant, moving existing offices and lab spaces.
View project sourceManaging Principal
PE, LEED AP BD+C
Kevin has been with FSi Engineers since 2005, stepping into the role of Managing Principal to lead the team with a focus on clear communication and understanding client needs.
Principal
PE, LEED AP BD+C, CCP, BEAP, BEMP
Ben specializes in both mechanical and fire protection engineering, holding credentials in energy modeling, energy auditing, and commissioning to drive sustainable building performance.
Principal
LEED Green Associate
Ola contributes to FSi Engineers' leadership team with a commitment to sustainable MEP design and fostering a strong company culture of gratitude and community.
Principal
PE, LEED AP
Rick delivers MEP engineering expertise to projects across the Pacific Northwest, guiding design teams with a focus on sustainable building systems and collaborative problem solving.
Chief Financial Officer
CMA
Jennette joined FSi Engineers in 2007 and was promoted to Chief Financial Officer, where she serves as a core member of the senior leadership team and manages hybrid work policy implementations.
Thank you for everything. Your help has been so much above and beyond what other engineers have been able to provide.
You are very proactive, and thinking ahead of us on the issues. You coordinate quite well with your consultant team, and your team has all the right people at the table. I am impressed with how you have worked through the mountain of details. You find solutions to problems when I expected the design team to say 'no we can't.' It is obvious the design team is at the top of its game.