Grunau Company Employee Directory

Q: What is Grunau Company known for?

Grunau Company was founded in 1920. Grunau Company operates in the Specialty Trade Contractors industry.

Q: How many employees does Grunau Company have currently?

Grunau Company has approximately 285 employees.

Specialty Trade ContractorsWisconsin, United States201-500 Employees

Grunau Company is a mechanical systems contractor headquartered in the greater Milwaukee area which specializes in any size commercial or industrial project in a variety of industries. The majority of our work is completed throughout southeastern Wisconsin as far west as Madison and as far north as Green Bay, WI. 

Our mechanical systems capabilities include HVAC (heating, ventilation, and air conditioning), plumbing, medical gas, process piping, electrical, refrigeration, and underground site utilities. Grunau completes installations, inspections, maintenance, and service 24/7 for our customers.  We’ve been the Benchmark of Excellence in our field since 1920.

Our sister operations, Grunau Fire Protection, has offices in Oak Creek, WI; Kenosha, WI (Flannery FP); Indianapolis, IN; Youngstown, OH; Pittsburgh, PA (Moon Township); and Orlando, FL.

Find Grunau Company employees' phone numbers or email addresses

Grunau Company Global Highlights

North America
251

United States Of America
251

Asia
1

Turkey
1

Grunau Company's Leadership

S. M.
Chief Executive Officer
Mobile Phone
Email
J. H.
Cfo
Mobile Phone
Email
J. H.
Cfo
Mobile Phone
Email
G. H.
Chief Operating Officer Strategic Pro
Mobile Phone
Email
M. G.
Vice President / Industrial Group
Mobile Phone
Email
R. K.
Vp Design Build
Mobile Phone
Email
D. M.
President
Mobile Phone
Email
M. D.
President
Mobile Phone
Email

Contact profiles from Grunau Company

Name

Title

Contact Info

Location

Last Update

K. G.
Owner Direct Sales/Site Utilities/Mechanical Construction Pm
Mobile Phone
Email
United StatesWisconsin
Nov 18, 2025
J. H.
Cfo
Mobile Phone
Email
United StatesWisconsin
Nov 21, 2025
D. M.
President
Mobile Phone
Email
Oct 17, 2024
G. H.
Chief Operating Officer Strategic Pro
Mobile Phone
Email
Oct 21, 2024
M. H.
Partner
Mobile Phone
Email
Oct 23, 2024
M. D.
President
Mobile Phone
Email
Oct 22, 2024
R. H.
Owner
Mobile Phone
Email
Oct 17, 2024
S. M.
Chief Executive Officer
Mobile Phone
Email
Oct 17, 2024
J. H.
Cfo
Mobile Phone
Email
United StatesWisconsin
Nov 21, 2025
P. G.
President
Mobile Phone
Email
United StatesWisconsin
Nov 21, 2025

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 285 employees as of December 2025. These team members are located across 2 continents, including North AmericaAsia.

Who are Grunau Company's key employees and leadership?

As of December 2025, Grunau Company's key employees include:

Chief Executive Officer: S. M.
Cfo: J. H.
Cfo: J. H.
Chief Operating Officer Strategic Pro: G. H.
Vice President / Industrial Group: M. G.

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