40 Under 40

40 Under 40

These winners know how to navigate excellence

Consulting-Specifying Engineer May/June 2026

2026 40 Under 40 winners announced

Alec Zimmermann, PE, 39

2026 40 Under 40: Alec Zimmermann, PE, 39

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Adapt® Premium Condensing Commercial Water Heater

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Greenheck ERVe Energy Recovery Ventilator

Plumbing, Pumping and Pumps

QuickFitting Brass Push-to-Connect Fittings Line Extension

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Indoor ventilators support space-constrained installations

40 Under 40 Continued

Marisa Higgins, PE, LEED GA, 31

HVAC/R and Mechanical

2026 40 Under 40: Marisa Higgins, PE, LEED GA, 31

Sally Hassan, PE, PMP, 39

Electrical and Power

2026 40 Under 40: Sally Hassan, PE, PMP, 39

Alex Halloran, PE, 32

HVAC/R and Mechanical

2026 40 Under 40: Alex Halloran, PE, 32

David Glenn, RCDD, CTS-D, LEED AP BD+C, 37

2026 40 Under 40: David Glenn, RCDD, CTS-D, LEED AP BD+C, 37

Joaquin Font, PE, CEM, CEA, HBDP, LEED AP, 29

2026 40 Under 40: Joaquin Font, PE, CEM, CEA, HBDP, LEED AP, 29

Jihan El Ouaragli, 31

Fire and Life Safety

2026 40 Under 40: Jihan El Ouaragli, 31

Khatera Dehzad, PE, PMP, LEED AP BD+C, 37

HVAC/R and Mechanical

2026 40 Under 40: Khatera Dehzad, PE, PMP, LEED AP BD+C, 37

Robby Deem, LEED AP BD+C, WELL AP, 38

2026 40 Under 40: Robby Deem, LEED AP BD+C, WELL AP, 38

Bryan Bucchianeri, PE, 35

HVAC/R and Mechanical

2026 40 Under 40: Bryan Bucchianeri, PE, 35

Events and Awards

2026 40 Under 40 program open for nominations