“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, telecommunications, energy infrastructure, utility projects, plumbing, 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 150+ 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 who is certified by the National Minority Suppliers Development Council (NMSDC) and a Veteran-owned business by the Illinois Department of Central Management Services (CMS). 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