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Top Illinois Contractors: Who's the Biggest?

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The construction industry in Illinois is a powerhouse, contributing significantly to the state's economy. A critical component of this industry is the presence of large contractors who drive developments in infrastructure, residential, and commercial projects. This article explores the largest contractors in Illinois, their impact, and notable projects.

Illinois, with its robust economy and diverse geography, presents ample opportunities for contractors. From the vibrant city of Chicago to the picturesque towns along the Mississippi River, the state's demand for construction services is strong and varied. Let's dive into the world of Illinois' largest contractors and their influence on the state's landscape.

Top Contractors by Revenue

Revenue is a key indicator of a contractor's size and influence. According to industry reports, the following are some of the largest contractors in Illinois by revenue:

JCB Breaks Ground on Its Largest Midwest Parts Distribution Facility
JCB Breaks Ground on Its Largest Midwest Parts Distribution Facility
Crowther Roofing & Cooling — AskARoofer
Crowther Roofing & Cooling — AskARoofer
Illinois Department of Transportation gives work zone safety message: photos
Illinois Department of Transportation gives work zone safety message: photos

S�adowski Remodeling

Based in Chicago, S�adowski Remodeling is a home renovation and remodeling company that has consistently ranked among the largest contractors in Illinois. Their expertise ranges from kitchens and bathrooms to whole-house renovations and additions. S�adowski's commitment to quality and attention to detail has earned them several industry awards and glowing customer reviews.

Notable projects include a complete gut and renovation of a historic Lakeview home and a luxury kitchen remodel featuring imported Italian cabinetry in a North Shore estate.

Lifetime Construction Group LLC Announces Strategic Expansion of Premium Home Renovation Services...
Lifetime Construction Group LLC Announces Strategic Expansion of Premium Home Renovation Services...
Casey Equipment Joins LiuGong North America Dealer Lineup
Casey Equipment Joins LiuGong North America Dealer Lineup
a building under construction with scaffolding around it
a building under construction with scaffolding around it

Clarke Construction

Founded in 1969, Clarke Construction is a full-service general contractor serving Illinois and the Midwest. They specialize in healthcare, higher education, and senior living projects. Clarke's portfolio showcases an impressive range of projects, from hospital expansions to student housing complexes.

Notable projects include the expansion and renovation of University of Chicago's Pritzker School of Medicine and the construction of Presence Saint Joseph Hospital in Chicago's West Loop.

Contractors Making a Difference in Illinois Communities

While revenue is one measure of a contractor's size, it's also inspiring to look at companies making a significant impact on Illinois communities. Here, we highlight two contractors known for their community-focused work:

Road builder run by members of Palumbo family back at work on state projects after lengthy 'pause'
Road builder run by members of Palumbo family back at work on state projects after lengthy 'pause'
Slashing development fees is not a cure-all for housing affordability: CMHC
Slashing development fees is not a cure-all for housing affordability: CMHC
Amish Roofers – Illinois - Amish America
Amish Roofers – Illinois - Amish America
Construction Inclusion Week: Building a kinder jobsite to attract new workers
Construction Inclusion Week: Building a kinder jobsite to attract new workers
A Local Manufacturer Is Named Among the Most Trustworthy Companies in America | Pittsburgh Magazine
A Local Manufacturer Is Named Among the Most Trustworthy Companies in America | Pittsburgh Magazine
News | Realty Income buys warehouse in biggest Chicago-area industrial sale in five years
News | Realty Income buys warehouse in biggest Chicago-area industrial sale in five years

F.H. Paschen

Founded in 1906, F.H. Paschen is a union general contractor serving the Chicagoland area. Known for their work in aviation, rail, and power generation, Paschen also takes pride in their community involvement. They regularly participate in charitable initiatives, including Habitat for Humanity builds and contributions to the American Red Cross.

Notable projects include the ongoing modernization of Chicago's Midway International Airport and the construction of a new power plant at the University of Illinois at Chicago.

Leopri Construction

Based in Lombard, Illinois, Leopri Construction is a family-owned business specializing in commercial and healthcare projects. Leopri is committed to sustainability, maintaining a strong safety record, and giving back to the community. They have been recognized for their work on green projects and their contribution to local charities.

Arranca el finde con todo! Hoy avanzamos con la llenada del subsuelo en el Barrio Sáenz Peña, San Isidro Cada paso nos acerca más a ver esta obra hecha realidad. 📲 +54 9 11 3049-8308 📧 info@belfastcm.com Mapa Dos Sonhos, Civil Construction, Builder Aesthetic, Construction Concrete, Construction Site With Workers And Equipment, Construction Sites, Construction Jobs, Video App, Construction Images
Arranca el finde con todo! Hoy avanzamos con la llenada del subsuelo en el Barrio Sáenz Peña, San Isidro Cada paso nos acerca más a ver esta obra hecha realidad. 📲 +54 9 11 3049-8308 📧 info@belfastcm.com Mapa Dos Sonhos, Civil Construction, Builder Aesthetic, Construction Concrete, Construction Site With Workers And Equipment, Construction Sites, Construction Jobs, Video App, Construction Images
the construction site is full of wooden planks
the construction site is full of wooden planks
Construction Business E-edition
Construction Business E-edition
LS Cable & System USA Plans $50M Expansion in North Carolina - Business Facilities Magazine
LS Cable & System USA Plans $50M Expansion in North Carolina - Business Facilities Magazine
The 10 Biggest Amish Communities (2025)
The 10 Biggest Amish Communities (2025)
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Prosper Portland shares big plans for the future of the former downtown post office site
Walmart leases 1M-sf warehouse
Walmart leases 1M-sf warehouse
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A Few Photos of Terex Utilities’ Service School in South Dakota Last Month
Residents Take Stand Against World’s Largest Coal Company in Southern Illinois
Residents Take Stand Against World’s Largest Coal Company in Southern Illinois
Contractors Hot Line on X
Contractors Hot Line on X
Hillwood adds to Fort Worth logistics hub
Hillwood adds to Fort Worth logistics hub
Wiegel Tool Works expands to new facility in Illinois
Wiegel Tool Works expands to new facility in Illinois
Donald Trump
Donald Trump
JLG Financial Expands Retail Lending Program to U.S. and Canada
JLG Financial Expands Retail Lending Program to U.S. and Canada

Notable projects include the renovation of Elmhurst Memorial Hospital and the construction of the Riverwalk Park in downtown Aurora.

From Chicago's skyline to the rural landscapes of downstate Illinois, large contractors shape the state's built environment. Their work not only transforms the physical landscape but also contributes to Illinois' economic growth and strengthens its communities. As the state continues to grow and evolve, so too will the roles and impacts of these large contractors.