Is J.M. Brennan, Inc. hiring right now?

J.M. Brennan, Inc. has no open roles listed as of October 23, 2026. Roles appear here as soon as they are posted on J.M. Brennan, Inc.'s careers site.

Where is J.M. Brennan, Inc. headquartered?

J.M. Brennan, Inc. is headquartered in Milwaukee, WI, United States and was founded in 1932.

Who leads J.M. Brennan, Inc.?

John Brennan III, Co-President, is at the top of J.M. Brennan, Inc.'s org chart.

How do I apply for a job at J.M. Brennan, Inc.?

Pick a role on J.M. Brennan, Inc.'s TheJobsMap page and select Apply. Every listing links to the original posting on J.M. Brennan, Inc.'s own careers site, so you apply directly with the employer.

J.M. Brennan, Inc. jobs and careers

Milwaukee, WI, United States

As of October 23, 2026, J.M. Brennan, Inc. has no open roles listed.

jmbrennan.com LinkedIn

About J.M. Brennan, Inc.

J.M. Brennan is a mechanical contractor dedicated to providing high performance HVAC, Building Controls, Plumbing, Process Piping, Industrial Sheet Metal, Fire Protection & Monitoring. We employ over 400 of the most highly skilled Pipe Fitters, Plumbers, Sheet Metal Workers, Sprinkler Fitters, Service Techs, and Controls Techs. We provide engineering, sustainable design, and service 24/7. Our customers include industrial, commercial, and healthcare facilities throughout Southern Wisconsin including Milwaukee and Madison.

Building Supplies Construction Industrial Heating Ventilation and Air Conditioning (HVAC)Manufacturing Real Estate

Founded: 1932
Employees: 350
Headquarters: Milwaukee

Leadership

The top of J.M. Brennan, Inc.'s org chart, with how many people report into each leader.

John Brennan III

Co-President

46 reports

Justin Harer

Vice President of Construction

21 reports

Jeff Thiel

Director of Controls

8 reports

Tim Kahle

Controller

3 reports

Jay Johnson

Sales Manager

3 reports

Eric Gould

Director of Technology & Marketing

2 reports

Max Ziolkowski

HR/Recruiting

1 report

Christopher Elsner

Service Manager

Brian Summers

Service Manager

Jobs at J.M. Brennan, Inc.

No open positions right now. Explore more companies on TheJobsMap.

J.M. Brennan, Inc. jobs: common questions

Is J.M. Brennan, Inc. hiring right now?: J.M. Brennan, Inc. has no open roles listed as of October 23, 2026. Roles appear here as soon as they are posted on J.M. Brennan, Inc.'s careers site.
Where is J.M. Brennan, Inc. headquartered?: J.M. Brennan, Inc. is headquartered in Milwaukee, WI, United States and was founded in 1932.
Who leads J.M. Brennan, Inc.?: John Brennan III, Co-President, is at the top of J.M. Brennan, Inc.'s org chart.
How do I apply for a job at J.M. Brennan, Inc.?: Pick a role on J.M. Brennan, Inc.'s TheJobsMap page and select Apply. Every listing links to the original posting on J.M. Brennan, Inc.'s own careers site, so you apply directly with the employer.