our history

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terra-12-31-1965

DECEMBER 31, 1965

Incorporated as Len Schlobohm Excavating, Inc.

terra-9-28-1973

SEPTEMBER 28, 1973

Gary E. Zimmerman, P.E. named as President

terra-4-10-1975

APRIL 10, 1975

Gary changes name to Terra Engineering & Construction Corporation to reflect the engineering benefit offered

terra-1982

1982

Gary E Zimmerman serves as president of the Wisconsin Chapter of the AGC

terra-timeline_1985

1985

After working many summers and college breaks in different capacities over the years, Gary E. Zimmerman’s two sons, Gary F. and Scott join Terra full-time

terra-timeline1

MAY 8, 1990

Gary F. Zimmerman named Vice President – Construction and Scott A. Zimmerman named Vice President – Estimating

terra-1999

1999

Gary E. Zimmerman steps down as President but remains on as chairman of the board

terra-may-2007

MAY 2007

Cured-in-Place Piping (CIPP) manufacturing shop built on Vondron Road property begins production

terra-jan-8-2008

JANUARY 8, 2008

Scott A. Zimmerman named Chief Executive Officer

terra-2015

JANUARY 23, 2015

Corporate headquarters moved to adjacent land – 2409 Vondron

terra-2016

MAY 5, 2016

Tony Arts and Donna Kopp elected to the Board of Directors

terra-2017

APRIL 1, 2017

Gary F Zimmerman promoted to Chief Operations Officer, Tony Arts promoted to Executive Vice President, Donna Kopp promoted to Chief Financial Officer, Mark Rippe promoted to Director of Risk Management, and Chris Steinke promoted to Construction Operations Manager

terra-2017-stock

APRIL 1, 2017

Employee Stock Ownership Plan (ESOP) formed

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