Smarter buildings. Lower energy costs.

BuildingAutomation,
Reimagined.

MJI Energy brings 30+ years of mechanical expertise to every building we automate — cutting energy costs, eliminating surprise failures, and giving you real-time control over every system.

50+
buildings automated
Up to 30%
energy reduction
30+ years
mechanical expertise
Dashboard Preview
1,284kWh
Optimized
Monthly usage · 2026
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F
M
A
M
J
J
A
S
O
N
D
AQI 28
Air qualityGOOD
72°F
Indoor avg.
845 ppm
CO₂ levelNORMAL
All systems normal·0 active alarms·12/12 zones online

What We Bring

Niagara Framework Certified30+ Years in the FieldBACnet / Modbus / LonWorksPSEG LI Rebate Partner24/7 Remote MonitoringLong Island & NYC MetroOpen Protocol SystemsControls & Mechanical, In-HouseWoman-Owned BusinessNiagara Framework Certified30+ Years in the FieldBACnet / Modbus / LonWorksPSEG LI Rebate Partner24/7 Remote MonitoringLong Island & NYC MetroOpen Protocol SystemsControls & Mechanical, In-HouseWoman-Owned Business
The difference

Why most buildings stay stuck

Most buildings are still managed reactively — multiple vendors, no unified view, no accountability. That's the gap we fill.

Before MJI Energy
Reactive repairs, emergency costs, frustrated tenants
Multiple vendors, no single point of accountability
Energy costs rising with no clear cause
Equipment running past its useful life
After MJI Energy
Issues caught and resolved before tenants notice
One team, complete ownership from controls to service
Monthly reports with benchmarks and clear next steps
Maintained equipment that performs and lasts longer
There's a better way to run your building. We built it.
Why MJI Energy

Built Different. Proven Where It Counts.

We think like a software company. We operate like mechanical engineers. That combination is what makes our platform work where others fall short.

30+
years of expertise

Real Expertise — Modern Controls

We designed MJI Energy knowing exactly what's running above your ceilings, in your mechanical rooms, and across every floor — because we've been there for over 30 years. Our platform is intuitive, modern, and built for real-time visibility. Not a legacy system with a new coat of paint.

1
unified dashboard

One Platform — Everything Connected

HVAC, lighting, energy management, remote monitoring — unified in a single dashboard your team can actually use. No switching between systems. No missing data. One interface, your entire building.

100%
built around your building

Built for Your Building — Not Against It

We design around your building — not a template. Whether that means retrofitting what you have, integrating across open protocols like BACnet and Modbus, or replacing an outdated system entirely, we do what's right for the building. Not what's easiest for us.

0
vendor lock-in

You Own the System — Not the Vendor

Our solutions run on open standards — BACnet, Modbus, LonWorks — so you're never locked into a single manufacturer. Change service providers, add integrations, or upgrade components on your terms.

What we do

Everything Your Building Needs
One Platform

View All Services
Not sure where your building stands? Request a Proposal →
Who we serve

Built for the People Who Operate Commercial Buildings

We built MJI Energy around the people who live in buildings all day long — facility managers chasing faults, property managers juggling portfolios, owners watching the bottom line.

Every feature we ship, every integration we build, and every alert we configure is designed for the person who has to make a decision fast.

Are you a BAS engineer or controls technician? → See Open Roles
Our roots

Rooted in New York. Built for the Buildings That Define It.

Johnson Controls Partner
Niagara Platform Certified
Woman-Owned Business
30+ Years of Mechanical Heritage

MJI Energy is actively serving commercial buildings across the New York metro area — and the ambition doesn't stop there. We launched here because this is where the buildings are dense, the energy mandates are real, and the bar for building performance is high.

We're backed by over 30 years of hands-on mechanical expertise from Michael James Industries, one of the region's most trusted commercial HVAC companies. Our software is grounded in real mechanical knowledge. Not just elegant code.

As a Johnson Controls Partner and Niagara-certified firm, we hold enterprise-grade credentials — and as a founder-led company, our leadership is directly invested in every project we take on.

Get started

Ready to Build Smarter?

Whether you're upgrading a legacy system, automating a new commercial building, or trying to finally get control of your energy costs — we'll walk through your building and show you exactly what's possible.

No jargon. No pressure. Just a clear picture of where you stand and what better looks like.

PSEG Long Island's commercial rebate programs can offset a significant portion of your building automation upgrade — and MJI Energy handles the paperwork. See available rebates →