Our people are the driver of our firm’s success.

John A. Ververelli, PE
President, Principal

WEB_DJVI_D4_C1_241.jpg

Linda O. Miedwig, PE, LEED AP BD+C
Project Manager

NAV_2019_2.jpg

Niki V. Diamond
Director, Communications + Marketing
Chief of Staff

WEB_DJVI_D4_C1_399.jpg

John C. Barton, PE
Vice President, Principal

WEB_DJVI_D4_C1_231.jpg

Robert W. Rowland
Plumbing Engineer

WEB_DJVI_D4_C1_016.jpg

David W. Gilbert, PE
Vice President, Principal

DJVI_Portraits2015-5+%282%29.jpg

John R. Lehman
Mechanical Engineer