Grunau Company Employee Directory

Specialty Trade ContractorsUnited 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
245

United States Of America
245

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
M. G.
Vice President / Industrial Group
Mobile Phone
Email
K. G.
Owner Direct Sales Pm
Mobile Phone
Email
J. H.
Cfo
Mobile Phone
Email
D. M.
President
Mobile Phone
Email
M. H.
Partner
Mobile Phone
Email
M. D.
President
Mobile Phone
Email

Contact profiles from Grunau Company

Name

Title

Contact Info

Location

Last Update

J. K.
Project Manager
Mobile Phone
Email
United StatesWisconsin
Oct 22, 2025
J. H.
Assistant Project Manager
Mobile Phone
Email
United StatesWisconsin
May 27, 2025
D. P.
Project Manager Hvac Service
Mobile Phone
Email
United StatesWisconsin
Oct 18, 2025
T. S.
Underground Utilities Manager
Mobile Phone
Email
United StatesWisconsin
Aug 11, 2025
J. S.
Assistant Project Manager
Mobile Phone
Email
United StatesWisconsin
May 24, 2025
M. G.
Electrical Division Manager
Mobile Phone
Email
United StatesWisconsin
Sep 10, 2025
J. N.
Fire Alarm Division Manager
Mobile Phone
Email
United StatesPennsylvania
Jul 19, 2025
J. L.
Branch Manager- Grunau Fire Protection/ Flannery Fire Protection
Mobile Phone
Email
United StatesWisconsin
Oct 21, 2025
B. C.
Hvac Field Project Manager
Mobile Phone
Email
United States
Jul 20, 2025
A. R.
Design Manager / Sales / Project Manager
Mobile Phone
Email
Oct 21, 2025

Frequently Asked Questions

What is Grunau Company known for?

Grunau Company was founded in 1920 operates in the Specialty Trade Contractors industry. The company's main headquarters is located in 1100 W Anderson Court, Oak Creek, WI 53154, US; 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 288 employees as of October 2025. These team members are located across 2 continents, including North AmericaAsia.

Who are Grunau Company's key employees and leadership?

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

Chief Executive Officer: S. M.
Chief Operating Officer Strategic Pro: G. H.
Vice President / Industrial Group: M. G.
Owner Direct Sales Pm: K. G.
Cfo: J. H.

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