The Quandel Company is founded by Emil Quandel as a limekiln and building materials supplier.
Quandel opens its first concrete plant.
Noble Quandel, Jr. becomes President and CEO, making Quandel a 4th generation family owned business.
Quandel wins its first million-dollar project.
Quandel forms Performance Construction Services, located in Pottsville, PA.
Quandel expands to the Midwest by opening the first Ohio office.
Quandel opens full-service office in Scranton, PA.
Quandel acquires Pyramid Construction Services, located in Wormleysburg, PA.
Quandel institutes Employee Stock Ownership Program.
QEI Construction Group, LLC is formed.
Quandel forms Quandel Consultants, a railway engineering firm, located in Chicago, IL.
Quandel acquires J. Vinton Schafer & Sons, located in Abingdon, MD.
Quandel climbs to 200 on the ENR Top 400 Contractors list.
Quandel celebrates its 135th anniversary!
Quandel begins work on UPMC Pinnacle's York Memorial Hospital.
Quandel headquarters relocates to new office.