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McMillan James Equipment Company Tech Stack

Commercial HVAC systems and building automation controls for mechanical contractors

Industrial Machinery Manufacturing Grapevine, TX 51–200 employees Founded 1999 Partnership

McMillan James is a manufacturer's representative in commercial HVAC with a technical sales force—all outside salespeople hold engineering degrees. The stack is pure industrial control (BACnet, Modbus, LonWorks, Siemens, Honeywell, Schneider Electric, PLC), indicating deep integration with building automation systems rather than software-first operations. Active hiring skews engineering-heavy (17 of 36 open roles), matching their project focus on field installation, commissioning, and retrofit work.

Tech Stack 11 technologies

Core StackSiemens BACnet Modbus LonWorks Honeywell Schneider Electric Microsoft Office PLC Building Automation Systems ADP Workforce Now iPad

What McMillan James Equipment Company Is Building

◆Challenges

Multi-state payroll compliance
Wage and hour law compliance

▲Active Projects

Energy storage tank installs
Field installation of building automation systems
Commissioning of hvac controls
Retrofit projects
Replacement projects
Retrofits
Equipment upgrades

Hiring Activity

Steady35 roles · 10 in 30d

Department

Engineering

17

Sales

12

Construction

4

Ops

2

HR

1

Seniority

Mid

21

Junior

7

Senior

7

Manager

1

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About McMillan James Equipment Company

McMillan James represents 32+ manufacturers of HVAC equipment and building automation controls, selling to mechanical contractors and supporting the engineering community in product selection for bid projects. Based in Grapevine, TX, the company operates across the full commercial HVAC lifecycle: system design, installation, commissioning of controls, and retrofit/upgrade projects. Field service technicians are factory-trained and certified. Current hiring activity (12 roles posted in the last 30 days) reflects steady growth, with most openings in engineering and sales.

HeadquartersGrapevine, TX

Company Size51–200 employees

Founded1999

Hiring MarketsUnited States

Frequently Asked Questions

What is McMillan James Equipment Company?

A manufacturer's representative in commercial HVAC, representing 32+ equipment makers. They sell to mechanical contractors and engineer custom heating, ventilation, and air-conditioning systems with factory-trained field service and degreed engineer sales staff.

What tech does McMillan James use?

Industrial control protocols and platforms: BACnet, Modbus, LonWorks, Siemens, Honeywell, Schneider Electric, PLC, and Building Automation Systems. Also Microsoft Office and ADP Workforce Now for operations.