What departments does AT Mechanical, LLC have?

AT Mechanical, LLC has employees across 3 departments including Entrepreneurship, Operations, Program & Project Management.

What is the largest department at AT Mechanical, LLC?

The largest department at AT Mechanical, LLC is Entrepreneurship with 1 employees.

Where are AT Mechanical, LLC employees located globally?

AT Mechanical, LLC has employees across 1 continents and 1 countries including United States Of America.

How has AT Mechanical, LLC's team size changed over time?

AT Mechanical, LLC's team has decreased from approximately 18 to 17 employees based on available data.

AT Mechanical, LLC Employee Directory

ConstructionIllinois, United States11-50 Employees

AT Mechanical, LLC is a comprehensive HVAC contracting and mechanical service firm based in Melrose Park, Illinois. The company relies on a skilled roster of pipefitters, sheet metal tradespeople, and service technicians to support a broad range of projects. Since 2004, it has completed projects valued at over $200 million across diverse building types, from suburban facilities to downtown Chicago, and it handles traditional plan-and-spec and design-build delivery, retrofit work, and rooftop unit installations, reflecting a flexible approach to project delivery.

Its client base consists of construction-industry organizations seeking reliable HVAC installation, retrofit, and ongoing service across the United States. In 2021, the company announced the promotion of Brian Pannier to General Manager, signaling leadership continuity.

AT Mechanical, LLC Global Highlights

North America
30

United States Of America
30

AT Mechanical, LLC's Leadership

P. L.
Vice President Operations
Mobile Phone
Email
D. P.
President
Mobile Phone
Email
J. H.
President
Mobile Phone
Email
B. G.
Owner
Mobile Phone
Email
W. R.
Principal
Mobile Phone
Email
A. C.
Supervisor
Mobile Phone
Email
J. B.
Project Coordinator / Pricing Estimator
Mobile Phone
Email
R. O.
Programmer
Mobile Phone
Email

AT Mechanical, LLC Employee Metrics

100%

50%

0%

2026

2025

Accounting
Program & Project Management
Civil Engineering & Construction
Business
Human Resources
Other

Contact profiles from AT Mechanical, LLC

Name

Title

Contact Info

Location

Last Update

B. G.
Owner
Mobile Phone
Email
Oct 24, 2024
D. P.
President
Mobile Phone
Email
Oct 23, 2024
J. H.
President
Mobile Phone
Email
Oct 16, 2024
P. L.
Vice President Operations
Mobile Phone
Email
Oct 23, 2024
W. R.
Principal
Mobile Phone
Email
Oct 17, 2024
A. C.
Supervisor
Mobile Phone
Email
Oct 23, 2024
J. B.
Project Coordinator / Pricing Estimator
Mobile Phone
Email
Oct 23, 2024
R. O.
Programmer
Mobile Phone
Email
Oct 17, 2024

Frequently Asked Questions

What is AT Mechanical, LLC known for?

AT Mechanical, LLC was founded in 2004 operates in the Construction industry; you can contact the main corporate office by phone at

+1-847-671-****

. Explore AT Mechanical, LLC's company overview page for more information.

What is AT Mechanical, LLC's most common email format?

AT Mechanical, LLC employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more AT Mechanical, LLC email formats with LeadIQ.

How many employees does AT Mechanical, LLC have currently?

AT Mechanical, LLC has approximately 26 employees as of July 2026. These team members are located across 1 continents, including North America.

Who are AT Mechanical, LLC's key employees and leadership?

As of July 2026, AT Mechanical, LLC's key employees include:

Vice President Operations: P. L.
President: D. P.
President: J. H.
Owner: B. G.
Principal: W. R.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

Everything for prospecting,
in one platform.

What you can expect from LeadIQ:

B2B data verified in real-time
Sync data to your CRM, & add it to an outreach sequence in one click
Integrations with your tech stack for optimal efficiency
A patented AI cold email generator
Account & contact-level job change tracking

AT Mechanical, LLC Employee Directory

Find AT Mechanical, LLC employees' phone numbers or email addresses

Name search is limited — try advanced search instead