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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.

Find Grunau Company employees' phone numbers or email addresses

Grunau Company Global Highlights

Location
Employees

North America
196

Minus sign iconPlus sign icon
  • United States Of America
    195
  • Canada
    1

Grunau Company's Leadership

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

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
Location
Last Update
  • Steamfitter at Grunau Company
    M. S.
    Steamfitter
    Mobile Phone
    Apr 24, 2025
  • Technician at Grunau Company
    M. P.
    Technician
    Mobile Phone
    Oct 22, 2024
  • Design Engineer at Grunau Company
    S. M.
    Design Engineer
    Mobile Phone
    Oct 22, 2024
  • Service Technician at Grunau Company
    S. H.
    Service Technician
    Mobile Phone
    Oct 23, 2024
  • Pipe Detailer at Grunau Company
    S. S.
    Pipe Detailer
    Mobile Phone
    May 30, 2026

Frequently Asked Questions

What is Grunau Company known for?

Minus sign iconPlus sign iconGrunau Company was founded in 1920 and operates in the Specialty Trade Contractors industry. You can contact Grunau Company's 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?

Minus sign iconPlus sign iconGrunau Company employees' email format typically follows the pattern of First.Last@grunau.com. 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?

Minus sign iconPlus sign iconGrunau Company has approximately 278 employees as of August 2026. These team members are located across 1 continents, including North America.

Who are Grunau Company's key employees and leadership?

Minus sign iconPlus sign icon

As of August 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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