Fire Protection
- Restaurants6,092
- Manufacturing plants3,247
- Apartment management companies1,251
- Senior living and skilled nursing772
- Commercial property management firms550
Chicago-Naperville has 23,843 businesses with 20 or more people on site across the categories commercial trades sell to, and it leans toward trucking companies and private K-12 schools more than the U.S. as a whole. Here is how each trade's market looks, where the buildings are and when to call.
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Ranked by larger buildings per contractor against up to 100 markets (only markets with 10 or more contractors in a trade are ranked; n/r means not ranked). A higher rank means more buildings worth calling for every competitor working them.
| Trade | Contractors | 1-yr change | Larger buildings | Per contractor | Rank | Eligible targets | Push months |
|---|---|---|---|---|---|---|---|
| Fire Protection Largest buyer group: restaurants | 184 | +6 | 13,256 | 72.0 | #8 | · | Year-round |
| Commercial Electrical Largest buyer group: retail stores | 806 | +12 | 11,173 | 13.9 | #16 | · | Year-round |
| Commercial Construction Largest buyer group: manufacturing companies | 1,153 | +27 | 7,296 | 6.3 | #22 | 22,975 | Year-round |
| Commercial Roofing Largest buyer group: retail stores | 142 | +8 | 12,544 | 88.3 | #20 | 22,975 | Feb–Apr |
| Commercial HVAC & Mechanical Largest buyer group: manufacturing plants | 668 | -6 | 8,234 | 12.3 | #26 | 11,824 | Apr–May, Sep–Nov |
| Paving & Asphalt Largest buyer group: retail stores | 223 | -4 | 11,618 | 52.1 | #26 | · | Feb–Apr |
| Commercial Cleaning & Janitorial Largest buyer group: manufacturing plants | 2,137 | +22 | 9,170 | 4.3 | #34 | 7,760 | Year-round |
| Commercial Painting & Coatings Largest buyer group: retail stores | 187 | -5 | 12,881 | 68.9 | #48 | · | Feb–Apr |
| Commercial Flooring Largest buyer group: ambulatory health care: physician, dental, outpatient and urgent care | 120 | +7 | 7,015 | 58.5 | #48 | · | Year-round |
| Commercial Landscaping Largest buyer group: retail stores | 3,838 | +2 | 11,180 | 2.9 | #77 | · | Feb–Apr |
Every trade has its own target list. Here are the five largest target industries for each program in the Chicago-Naperville metro, with local location counts; each guide lists all ten and who your SDR asks for.
Locations with 20 or more employees, U.S. Census Bureau, County Business Patterns 2023. Property management and similar categories count every company, whatever its size.
Verified, sourced, and current as of July 2026. We refresh this brief quarterly.
The permanent casino complex is one of the projects pushing Chicago’s crane count upward.
Source →Chicago’s fastest-transforming commercial district keeps adding office, residential, and hospitality inventory.
Source →While most North American markets slowed, Chicago’s count rose, a leading indicator of commercial work entering the trades pipeline.
Source →Chicago was one of only four North American cities to increase its tower-crane count in Q1 2026. Source →
Health systems, campuses, large employers and industrial parks hold the biggest concentrations of commercial buildings here. Each fact links to its source, checked 2026-10.
Northwestern Medicine says it has more than 5,400 physicians and hundreds of locations throughout the Chicagoland area, anchored by Northwestern Memorial Hospital downtown.
Hospitals from Streeterville to Central DuPage, Delnor, Lake Forest, McHenry, Palos and Woodstock run central plants, sprinkler systems and patient floors that need constant service.
Northwestern Medicine →UIC calls itself the largest university in Chicago and reports 35,869 total students for Fall 2025.
East and west campuses on the Near West Side combine classroom buildings, labs, residence halls and the university hospital, with parking structures and grounds to maintain.
University of Illinois Chicago →Wikipedia, citing the airport's own statistics, lists 84,851,825 passengers at O'Hare in 2025 and notes the airport covers 7,627 acres.
Terminals, garages, cargo buildings and airline maintenance facilities across a 7,627-acre site run by the Chicago Department of Aviation need cleaning, HVAC, electrical and pavement work.
Wikipedia →Wikipedia calls it the largest inland port in North America, with a 785-acre Union Pacific Railroad complex south of Joliet and a 770-acre BNSF Railway complex to the southwest.
Rail yards surrounded by large distribution centers create demand for dock-area paving, warehouse roofing, lighting and sprinkler work.
Wikipedia →Wikipedia, with citations, calls Gary Works the largest integrated mill in North America and Gary's largest single employer, with 2,246 employees in 2023.
A lakefront steelmaking complex with furnaces, rolling mills and support buildings carries heavy electrical, roofing, coatings and fire protection needs.
Wikipedia →Wikipedia, with citations, calls Woodfield the largest shopping mall in Illinois; it opened on September 9, 1971.
A large enclosed mall with anchor stores, food court and acres of surface parking needs janitorial, HVAC, lot paving and landscaping work.
Wikipedia →Compared with the national mix, Chicago-Naperville over-indexes on trucking companies, private K-12 schools and manufacturing plants. The fastest-growing categories over the past year: medical, dental and outpatient offices (+474), restaurants (+385) and trucking companies (+104).
| Category | Sites with 20+ | All establishments | vs. U.S. mix | 1-yr change |
|---|---|---|---|---|
| Restaurants | 6,092 | 21,071 | 1.31x | +385 |
| Retail stores | 4,626 | 25,308 | 1.05x | -247 |
| Manufacturing plants | 3,247 | 9,298 | 1.37x | -48 |
| Wholesale distributors | 2,321 | 12,261 | 1.00x | -122 |
| Medical, dental and outpatient offices | 2,177 | 22,475 | 1.19x | +474 |
| Grocery stores | 844 | 4,521 | 1.31x | -16 |
| Senior living and nursing | 772 | 1,797 | 0.57x | -2 |
| Trucking companies | 575 | 12,968 | 3.40x | +104 |
| Bank and credit union offices | 502 | 4,437 | 0.90x | -60 |
| Auto dealerships | 464 | 1,073 | 1.04x | -4 |
| Churches and religious organizations | 435 | 3,663 | 1.07x | -60 |
| Private K-12 schools | 431 | 713 | 1.50x | -3 |
| Hotels | 370 | 893 | 0.70x | -12 |
| Warehousing and distribution | 343 | 727 | 1.24x | 0 |
| Hosting and data processing companies | 144 | 526 | 0.56x | +54 |
| Hospitals | 122 | 146 | 0.67x | +15 |
| Apartment and residential property managers | 100 | 1,251 | 0.68x | +9 |
| Golf courses and country clubs | 94 | 191 | 0.69x | -6 |
| Colleges and universities | 78 | 123 | 0.49x | -1 |
| Commercial property managers | 56 | 550 | 1.29x | -29 |
| Nonresidential building owners | 50 | 827 | 0.91x | -11 |
Cook County, DuPage County and Lake County hold 74% of the metro's larger business sites. Most programs start in those counties and add the outer 10 counties for larger accounts, depending on how far your crews travel.
| County | Larger business sites |
|---|---|
| Cook County | 12,257 |
| DuPage County | 3,511 |
| Lake County | 1,744 |
| Will County | 1,727 |
| Kane County | 1,420 |
| Lake County, Indiana | 1,281 |
| McHenry County | 626 |
| Porter County, Indiana | 414 |
| DeKalb County | 199 |
| Kendall County | 180 |
| Grundy County | 92 |
| Jasper County, Indiana | 71 |
Outdoor trades (roofing, paving, landscaping, exterior painting) work the months with lows of 40°F or above and sell in the months before. HVAC sells ahead of its heating and cooling peaks. Each trade page has its own calendar.
Illinois does not license general contractors at the state level. Roofing, fire sprinkler, and alarm contractors hold state licenses, while general contractor and electrical licensing is local (for example, the City of Chicago).
Trade-by-trade rules are on each trade page. Confirm with Illinois Department of Financial and Professional Regulation (IDFPR); Office of the Illinois State Fire Marshal. Checked 2026-09-30.
Before you hire a sales development rep in Chicago, price the whole job, not just the salary. Here is the local pay for sales representatives, and what a first year really costs once you add commission, payroll taxes and benefits, tools, recruiting and the manager time it takes to coach them.
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May 2025. Sales representatives of services, except advertising, insurance, financial services and travel (SOC 41-3091).
In-house adds $15,000 commission, 25% payroll taxes and benefits, $500/month tools, $5,000 recruiting and 4 manager hours a week at $75/hour, before ramp time or turnover. Abstrakt includes the SDR, management, tools and data.
Abstrakt's U.S.-based business development reps build a Chicago target list around your trade, service area and ideal buildings, work it by phone, email, LinkedIn and direct mail, and book meetings with the people who sign. We will not run the same program for a direct competitor in your territory.
Selling into Illinois? See the Illinois outbound calling rules: do-not-call lists, calling hours and registration, so you know what a program here has to handle.
Yes. Abstrakt runs outsourced appointment setting for commercial trades across the Chicago-Naperville-Elgin, IL-IN metro: our U.S.-based business development reps call the buildings, qualify the opportunity and book meetings with the person who signs. We run one program per trade per market.
Measured by larger buildings per contractor against the 100 markets we track (where a trade has at least 10 local contractors), fire Protection (#8), commercial Electrical (#16) and commercial Construction (#22) rank best in Chicago.
Compared with the national mix, Chicago-Naperville has more trucking companies (3.40x), private K-12 schools (1.50x) and manufacturing plants (1.37x). Those industries are the best-represented buyers for trades that serve them.
The metro covers 13 counties. Cook County, DuPage County and Lake County hold 74% of the larger business sites, so most programs start there.
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