John Grothaus - Email & Phone Number

Vice President Of Operations at Ozinga

John Grothaus is based out of Crown Point, Indiana, United States and works at Ozinga as Vice President Of Operations.

John Grothaus's Contact Information

John Grothaus's Work email

j*****@ozing***.com

Valid

Latest update

October 27, 2025

Location

Crown Point, Indiana, United States

John's current employer

Ozinga

Description

Ozinga provides quality bulk materials and diverse concrete solutions across the Midwest and South Florida. Get in touch with us today!

Website

ozinga.com

HQ Location

Mokena, IL, United States

Number of employees

1001-5000

Industry

Wholesale Building Materials

Latest update

April 30, 2024

Read about Ozinga

Frequent questions about John Grothaus

What company is John Grothaus working for?

John Grothaus works for Ozinga.

What is John Grothaus's function at Ozinga?

John Grothaus is Vice President Of Operations at Ozinga.

Where is John Grothaus based?

John Grothaus is based out of Crown Point, Indiana, United States.

What is John Grothaus's work email address?

John Grothaus's professional email address is j*****@ozing***.com

Who are John Grothaus's co-workers?

John Grothaus's colleagues are Don Rapley, Lloyd Meyer, Paul Ozinga, Justin Ozinga, Marty Ozinga, Aaron Halcomb, Monica Martinez, Adrian Lau, Ryan Cialdella, Jonathan Halcomb, Brian Fritzler, ShaRhonda Ashmon, Keith Onchuck, Scott Underwood, Greg Velde, Ivan Loya, Jose Diaz, Ken Cook, Paul Winkle, Nicholas Gorczynski, David Huitsing, Nick Rapley, Jeffrey Ozinga, Rex Jameson, Kim Herlihy, Jeffrey Bonnema, Peter Colangelo, Jeffrey Radack, Nancy Hannafin, Cara Bouhoutsos, Logan VanProyen, Isaac Yun, Jeff Emrick, Bradley Jamrozik, Rosalinda Cedano.

John's co-workers

Don Rapley

President of Ozinga of Indiana

Lloyd Meyer

President

Paul Ozinga

President, Ready Mix Concrete

Vice President & General Manager OML Bulk Cement Dist.

Monica Martinez

Cook

Adrian Lau

Vice President of Procurement, Ozinga International

Ryan Cialdella

Vice President of Innovation & Market Development

Jonathan Halcomb

Vice President of Sales and Business Development

Brian Fritzler

Vice President of Sales / Chicago

ShaRhonda Ashmon

SVP of Human Resources | Head of Human Resources I Human Capital Strategist

Keith Onchuck

CIO

Scott Underwood

Vice President Operations

Greg Velde

Vice President - Strategic Development

Ivan Loya

VP Technical Services

Jose Diaz

Vice President & General Manager

Ken Cook

VP of Finance - Ready Mix

Paul Winkle

Vice President of Sales

Nicholas Gorczynski

Fleet Parts Coordinator

David Huitsing

Vice President and Treasurer

Nick Rapley

Close-up, Plant Manager, Laborer

Jeffrey Ozinga

Executive Vice President

Rex Jameson

Vice President, Talent Acquisition & Development

Kim Herlihy

VP of Finance - Aggregates

Jeffrey Bonnema

Vice President of Fleet Management

Peter Colangelo

Vice President of Operations

Jeffrey Radack

Vice President and General Manager of Ozinga Materials, Inc.

Nancy Hannafin

Vice President & Tax Director

Cara Bouhoutsos

Director Of Accounting

Logan VanProyen

Business Systems Analyst, Lead Application Support

Isaac Yun

Director of Project Development

Jeff Emrick

Director of Safety and Compliance

Bradley Jamrozik

Lead Business Intelligence Architect

Rosalinda Cedano

Director of Financial Planning and Analysis

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