# J.M. Brennan, Inc. jobs and careers

> 0 open roles at J.M. Brennan, Inc. as of October 23, 2026. Source: https://www.thejobsmap.com/company/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.

## Key facts

| | |
|---|---|
| Open roles | 0 |
| Headquarters | Milwaukee, WI, United States |
| Founded | 1932 |
| Employees | 350 |
| Industries | Building Supplies, Construction, Industrial, Heating |
| Website | https://jmbrennan.com |

## Leadership

- John Brennan III, Co-President
- Justin Harer, Vice President of Construction
- Jeff Thiel, Director of Controls
- Tim Kahle, Controller
- Jay Johnson, Sales Manager
- Eric Gould, Director of Technology & Marketing
- Max Ziolkowski, HR/Recruiting
- Christopher Elsner, Service Manager

## 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.