“Every company has two organizational structures: The formal one is written on the charts; the other is the everyday relationship of the men and women in the organization."

-Harold S. Geneen


To deliver best-in-class service and solutions through expertly skilled professionals, who reflect our community, are committed to lifelong customer relationships and driven by safety - first, last and always.

About Us

Proudly headquartered in the heart of Chicago, Illinois MZI Group, Inc. is a leader in electrical and mechanical construction, energy infrastructure, utility projects, design build and facility services.

Established in 1999, MZI has spearheaded projects around the Midwest and across the United States. Collectively, our executive management team has over 130+ years of industry experience and an established record of unrivaled service in planning, operating and executing projects of varying scopes in the private and public sectors. An impeccable work and safety record with the nation’s leading utility providers, private contractors and municipalities alike drive continued success.

MZI has experienced unprecedented growth over the last few years. CEO, Arthur Miller attributes the growth to his staff’s relentless pursuit of safety perfection, dedication to MZI’s core values and shared commitment to the clients that entrust MZI with their projects.

MZI Group is certified as a Minority-owned company by the National Minority Suppliers Development Council (NMSDC), as a Minority Business Enterprise (MBE) by the California Public Utilities Commission's Supplier Clearinghouse and a Veteran-owned company by the Center for Veteran Enterprise (CVE). These certifications allow MZI Group to be recognized as a Minority contractor throughout the United States.

MZI’s diverse portfolio reflects the breadth and depth of their services from the public to private sector. Here are just a few of their valued clients:

Private Sector

Aldridge Electric
Baltimore Gas & Electric
Bank of America
CB Richard Ellis
Children's Memorial Hospital
Fairmont Hotel
Good Samaritan Hospital
Grubb & Ellis
John Buck Management
Jones Lang LaSalle
JP Morgan Chase
Mercy Hospital
Northwestern Hospital
Pennsylvania Power & Light
Rush Hospital
Trump Towers
U.S. Equities
United Parcel Service
University of Chicago
Viox Services

Public Sector

Chicago Housing Authority
Chicago Park District
Chicago Public Schools
Chicago Transit Authority
City of Chicago
Cook County
Metropolitan Water Reclamation District
O'Hare Airport
State of Illinois