ELECSYS Engineering Group
Valhalla, NYEnd-to-End Engineering Solutions for Public Infrastructure and the Built Environment
Project: Grand Central Madison East Side Access
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End-to-End Engineering Solutions for Public Infrastructure and the Built Environment
Project: Grand Central Madison East Side Access

A leading MEP Firm trusted for complex engineering solutions.
Project: Vuori
Leaders in Decarbonization Design, Engineering, and Construction Consulting Services
Project: 104-20 Dunkirk St

Design, Build, and Sustain a Better World
Project: West Valley Demonstration Project

Solutions Driven. People Focused.
Project: Springfield Culinary & Nutrition Center

Over 50 years of making buildings and infrastructure systems work, preserving the environment, and achieving client service excellence.
Project: Jones Beach West Bathhouse Pool Filtration Renovation

Engineered for Performance. Designed for People.
Project: Gideon Putnam - Ballroom Renovation

End-to-end engineering solutions
Service detail: Mechanical and HVAC Engineering

Integrated engineering design solutions for commercial, institutional, and residential buildings
Service detail: Mechanical Engineering

Innovative MEP/FP design and consulting engineering
Service detail: Consulting Engineering

Building the future, from the inside out.
Project: HUMC Sarkis and Siran Gabrellian Women's and Children's Pavilion
Henderson Engineers is a national building systems engineering design and facility consulting firm headquartered in Lenexa, Kansas, with 15 offices across the United States. Its team of more than 1,000 engineers provides mechanical, electrical, plumbing, fire and life safety, refrigeration, telecommunications, security, acoustics, and commissioning services for retail, healthcare, commercial, grocery and distribution, sports venue, and data center markets.
Service detail: Mechanical Engineering

Sound, thoughtful engineering solutions rooted in experience and expertise.
Project: Hoosac Valley Middle-High School (LEED-Gold)

Infrastructure. Technology. Together.
Project: MTA NYCT Accessibility Upgrades at Eight Stations
Green Engineering for the future
Project: 189 Bridge Street

Engineering That Delivers
Service detail: HVAC
Professional. Hands-On. Solution-Oriented.
Project: Fort Drum - Railhead Loading Facility

A Century of Innovation
Service detail: Mechanical Engineering (HVAC)

Engineering, Architecture, Procurement and Construction Management
Service detail: Engineering & Architecture
MEPT engineering for complex buildings
Project: Heart and Vascular Institute

Engineering Excellence and Client Partnering
Project: Lincoln Center David Geffen Hall
Specialty Services - Multi-Disciplined Solutions
Project: Walt Whitman Road Bridge Replacement

Ensuring success with an experienced team of engineers.
Project: New York City Hall Renovation
National Presence. Hyper-Local Focus.
Service detail: Civil Engineering