As the HVACR industry continues to face its fair share of challenges, from workforce shortages to decarbonization goals, the next generation of HVACR professionals is already leading the charge. And they aren’t just filling gaps — they’re reshaping the industry itself.

This year’s Top 40 Under 40 list includes individuals launching high-efficiency product lines, scaling HVAC businesses from $5 million to $10 million in just a few years, modernizing training programs, and merging creative design thinking with mechanical systems marketing. Some grew up in family businesses; others found HVAC through unexpected pivots. All of them share a clear passion for the trades, and for what comes next. Read their stories below.

2025 Top 40 Under 40 HVACR Professionals List

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Stephanie Allen

Siddharth Bhat

Roy Brown

Joel M. Bruch

Chris Buttenham

Tate Byers

Ted Caruso

Joshua Crouch

Jake Dawson

Kevin Doran

Emily Fleniken

Meagan Garrett

Gray Hanson

Jennifer Harrison

Valerie Heck

Clay Hobbs

Kathryn Elizabeth Howard

Joshua Kelly

Marissa Kocaman

Lauren MacGowens

Victoria Garcia Massimo

Rakesh Mathew

Bailey McCormick

Twishansh Mehta

Dr. Kashif Nawaz

Edward O’Connor

Ryan Otto

Elise Radawitz

Steve Raimondi

Marco Rubino

Jennifer Schroll

Greg Smidl

Tom Swanson

Mike Venidis

Raelynn Warner

Cole Whitehurst

Kara Wills

Sarah Windsor

William Yarbrough