What departments does Grunau Company have?

Grunau Company has employees across 12 departments including Operations, Entrepreneurship, Marketing, Accounting, Program & Project Management.

What is the largest department at Grunau Company?

The largest department at Grunau Company is Program & Project Management with 8 employees.

Where are Grunau Company employees located globally?

Grunau Company has employees across 2 continents and 3 countries including Turkey, United States Of America, Canada.

How has Grunau Company's team size changed over time?

Grunau Company's team has decreased from approximately 174 to 162 employees based on available data.

Grunau Company Employee Directory

Specialty Trade ContractorsWisconsin, United States201-500 Employees

Grunau Company is a mechanical systems contractor based in the greater Milwaukee area, with its headquarters in Oak Creek, Wisconsin. It serves commercial and industrial projects of varying size across southeastern Wisconsin, extending west to Madison and north to Green Bay. The company provides a range of mechanical system capabilities, including HVAC, plumbing, medical gas, process piping, electrical, refrigeration, and underground site utilities, and it performs installations, inspections, maintenance, and 24/7 service.

Grunau has a long history dating back to 1920, reflecting a longstanding presence in the regional market. Its sister operation, Grunau Fire Protection, operates from multiple locations including Oak Creek, WI; Kenosha, WI (Flannery FP); Indianapolis, IN; Youngstown, OH; Moon Township, PA; and Orlando, FL.

Grunau Company Global Highlights

North America
249

United States Of America
248
Canada
1

Asia
1

Turkey
1

Grunau Company's Leadership

S. M.
Chief Executive Officer
Mobile Phone
Email
G. H.
Chief Operating Officer Strategic Pro
Mobile Phone
Email
D. M.
President
Mobile Phone
Email
M. D.
President
Mobile Phone
Email
M. H.
Partner
Mobile Phone
Email
R. H.
Owner
Mobile Phone
Email
E. H.
Marketing Director
Mobile Phone
Email
K. R.
Corporate Controller
Mobile Phone
Email

Grunau Company Employee Metrics

100%

50%

0%

2026

2025

Program & Project Management
Administrative
Arts & Design
Civil Engineering & Construction
Accounting
Other
Healthcare Services

Contact profiles from Grunau Company

Name

Title

Contact Info

Location

Last Update

A. R.
Design Manager / Sales / Project Manager
Mobile Phone
Email
Jun 02, 2026
S. D.
Construction Manager / Branch Safety Coordinator / Local 821 Journeyman
Mobile Phone
Email
Jul 08, 2026
A. L.
Project Manager
Mobile Phone
Email
Oct 17, 2024
C. L.
Project Manager
Mobile Phone
Email
Oct 21, 2024
D. C.
Project Manager
Mobile Phone
Email
Oct 17, 2024
D. B.
Sales Manager
Mobile Phone
Email
Oct 22, 2024
D. K.
Fire Protection Service Project/Account Manager
Mobile Phone
Email
Oct 16, 2024
G. B.
Plumbing Manager
Mobile Phone
Email
Oct 18, 2024
J. A.
Branch Manager
Mobile Phone
Email
Oct 17, 2024
J. V.
Service Sales Manager
Mobile Phone
Email
Oct 22, 2024

Frequently Asked Questions

What is Grunau Company known for?

Grunau Company was founded in 1920 operates in the Specialty Trade Contractors industry; you can contact the main corporate office by phone at

+1-414-216-****

. Explore Grunau Company's company overview page for more information.

What is Grunau Company's most common email format?

Grunau Company employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Grunau Company email formats with LeadIQ.

How many employees does Grunau Company have currently?

Grunau Company has approximately 276 employees as of July 2026. These team members are located across 2 continents, including North AmericaAsia.

Who are Grunau Company's key employees and leadership?

As of July 2026, Grunau Company's key employees include:

Chief Executive Officer: S. M.
Chief Operating Officer Strategic Pro: G. H.
President: D. M.
President: M. D.
Partner: M. H.

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Grunau Company Employee Directory

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