Insights

Gathering insights about J.M. Brennan, Inc.…

Similar companies to J.M. Brennan, Inc.

J.M. Brennan, Inc. Tech Stack

J.M. Brennan, Inc. uses 8 technology products and services including WordPress, oEmbed, Modernizr, and more. Explore J.M. Brennan, Inc.'s tech stack below.

WordPress
Content Management System
oEmbed
Dev Tools
Modernizr
Javascript Libraries
jQuery
Javascript Libraries
Priority Hints
Performance
PHP
Programming Languages
X-XSS-Protection
Security
Gravity Forms
Web Platform Extensions

Media & News

J.M. Brennan, Inc. attends event Stratus Innovate 2025.
JMBrennan and PypeServer share Fire Protection fab insights at Stratus Innovate 2025.
Jul 25, 2025 | pypeserver.com

J.M. Brennan, Inc.'s Email Address Formats

J.M. Brennan, Inc. uses at least 1 format(s):

J.M. Brennan, Inc. Email Formats	Example	Percentage
FLast@jmbrennan.com	JDoe@jmbrennan.com	34%
FirstL@jmbrennan.com	JohnD@jmbrennan.com	16%
FLast@jmbrennan.com	JDoe@jmbrennan.com	34%
FirstL@jmbrennan.com	JohnD@jmbrennan.com	16%

Frequently Asked Questions

What is J.M. Brennan, Inc.'s phone number?

You can contact J.M. Brennan, Inc.'s main corporate office by phone at

+1-414-342-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is J.M. Brennan, Inc.'s official website and social media links?

J.M. Brennan, Inc.'s official website is jmbrennan.com and has social profiles on LinkedIn.

What is J.M. Brennan, Inc.'s SIC code NAICS code?

J.M. Brennan, Inc.'s SIC code is 1711 - Plumbing, Heating and Air-Conditioning NAICS code is 23 - Construction.

How many employees does J.M. Brennan, Inc. have currently?

As of February 2026, J.M. Brennan, Inc. has approximately 185 employees across 4 continents, including North AmericaAfricaEurope. Key team members include Co-President: M. B.Co-President: J. B.Director Of Technology & Marketing: E. G.. Explore J.M. Brennan, Inc.'s employee directory with LeadIQ.

What industry does J.M. Brennan, Inc. belong to?

J.M. Brennan, Inc. operates in the Construction industry.

What technology does J.M. Brennan, Inc. use?

J.M. Brennan, Inc.'s tech stack includes WordPressoEmbedModernizrjQueryPriority HintsPHPX-XSS-ProtectionGravity Forms.

What is J.M. Brennan, Inc.'s email format?

J.M. Brennan, Inc.'s email format typically follows the pattern of FLast@jmbrennan.com. Find more J.M. Brennan, Inc. email formats with LeadIQ.

When was J.M. Brennan, Inc. founded?

J.M. Brennan, Inc. was founded in 1932.

J.M. Brennan, Inc.

Q: What is J.M. Brennan, Inc.'s official website and social media links?

J.M. Brennan, Inc.'s official website is jmbrennan.com. J.M. Brennan, Inc. has social profiles on LinkedIn.

Q: How many employees does J.M. Brennan, Inc. have currently?

J.M. Brennan, Inc. has approximately 185 employees.

Q: What technology does J.M. Brennan, Inc. use?

J.M. Brennan, Inc.'s tech stack includes Google Hosted Libraries, DreamWeaver, RSS, JSON-LD, reCAPTCHA.

ConstructionWisconsin, United States51-200 Employees

J.M. Brennan is a mechanical contractor dedicated to providing high performance HVAC, Building Controls, Plumbing, Process Piping, Industrial Sheet Metal, Fire Protection & Monitoring, Site Utilities and Electrical.  We employ over 500 of the most highly skilled Pipe Fitters, Plumbers, Sheet Metal Workers, Sprinkler Fitters, Service Techs, Controls Techs, & Electricians.  We provide engineering, sustainable design, and service 24/7.  Our customers include industrial, commercial, and healthcare facilities throughout Southern Wisconsin including Milwaukee and Madison.