About ESG

Empowering Future Growth and Change

At our core, we are

innovators, partners, and

passionate advocates for

our clients’ goals.

Since 1994, we have helped public- and private-sector organizations across the U.S. achieve their energy efficiency, resiliency, infrastructure, and sustainability goals with innovative, budget-neutral solutions.

Built on the power of ideas, future-forward solutions, and the spirit of partnership, we help our clients improve living, working, and learning environments to make our communities safer, more efficient, and more resilient.

State and Local Government

Wicomico County

State and Local Government

Chicago West Energy Center


Fort Bliss

Higher Education

Northern Illinois University

Northeast Office Opening-crop

When you partner with ESG, you have access to an entire team of experienced energy efficiency consultants, renewable energy consultants, energy conservation consultants, construction managers, and project developers at your side.


From diverse facility solutions to waste-to-energy strategies, we offer a comprehensive portfolio of solutions that have been proven to save money and make money for our clients.


And with nearly 400 employees in 30+ states, we have the expertise and local knowledge to tackle your most complex challenges.

Put More Power Behind Your Priorities

Our entire process is designed to make your life easier. We partner with our clients to identify, engineer, design, build, operate, and maintain practical solutions that work in the real world.


Your Easy Button

From diverse facility solutions to sensible financing options, we bring the pieces together so you can make decisions with confidence.


Focused on Your Priorities

Through collaborative consulting, we deliver holistic solutions that address today’s needs and anticipate tomorrow’s challenges.


Guaranteed Results

A commitment you can take to the bank: If you don’t achieve the annual energy savings we promise, we pay the difference.


A Record You Can Trust

Of the $4 billion+ projects we have developed, 99.999% have met or exceeded our energy savings guarantee.


Greater Peace of Mind

You’ll be supported by a single, integrated team at every turn, streamlining decision-making and eliminating finger pointing.


No Strings Attached

Our solutions are vendor-agnostic, shaped entirely by your needs and goals rather than a specific brand of equipment.

Your Energy Management and Sustainable Infrastructure Experts

Our industry expertise spans the commercial, corrections, federal government, healthcare, K-12 and higher education, municipal and state governments, transportation, and utility markets.

ESG Business Lifestyle 3-edit

As a leading energy solutions company with the financial backing of Oaktree Capital Management’s Power Opportunities Group, we have the resources needed to follow through on what we promise.

Our Mission

To deliver holistic, future-focused energy and infrastructure solutions that help our customers turn their energy liabilities into assets that support their bottom-line mission.

Our Vision

To be an industry catalyst that drives innovation to create infrastructure solutions that result in a more sustainable energy future.

Our Purpose

To partner with our customers and communities to create a more resilient, sustainable future for our planet.

Our Values

ESG CARES for our team, our communities, and our customers.


We are a community, and our communities are our home. Our people work as one team to bring sustainable solutions to our customers and the world we live in.


We have a responsibility to leave things better than we found them, always and under every circumstance.


We strive to exceed expectations at every turn; for our teams, our customers, and our communities.


We have deep appreciation for our team members, our communities, and our customers, and we strive to empower our people and our customers equally, setting the stage for their success.


We are responsible for the safety and health of all ESG employees, our communities, our customers, and our business partners, and to ensure everyone returns home safely at the end of each day.

Energy Solutions, Simplified

Take your operations to the next level with holistic, practical energy and infrastructure solutions that pay for themselves.