> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/companies-in/chicago-il/construction/ # Construction Companies in Chicago, IL The bigger construction companies headquartered in Chicago, IL, with what they do, their sizes and how to reach their people. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** Among the construction companies counted in Chicago, IL, the biggest by headcount range include Bechtel, Holcimus and Clayco. They are mostly very small: 77% have 50 or fewer employees. ## Which construction companies are in Chicago? Among the companies whose public profile lists Construction as their industry and Chicago, IL as their headquarters, the biggest by headcount range include Bechtel, Holcimus, Clayco, Roadsafe Traffic Systems and Meade. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | [Bechtel](https://enrich.chat/company/bechtel/) | 10,001+ | | Holcimus | 5,001 to 10,000 | | Clayco | 1,001 to 5,000 | | Roadsafe Traffic Systems | 1,001 to 5,000 | | Meade | 1,001 to 5,000 | | Pepper Construction Group | 501 to 1,000 | | W.E. O'neil Construction | 501 to 1,000 | | Clune Construction | 501 to 1,000 | | Mchugh Concrete Construction | 501 to 1,000 | | Cabinet Makers Association | 501 to 1,000 | | Power Construction | 201 to 500 | | F.H. Paschen | 201 to 500 | | Skender | 201 to 500 | | Viatechnik | 201 to 500 | | Berglund Construction | 201 to 500 | | Bulley & Andrews | 201 to 500 | | Ventana | 201 to 500 | | Rex Electric & Technologies | 201 to 500 | | Mzi Group | 201 to 500 | | D'escoto | 201 to 500 | | Siteline Interior Carpentry | 201 to 500 | | Michuda Construction | 201 to 500 | | Paschen Concrete | 201 to 500 | | Heartland Paving Partners | 201 to 500 | | Maron Electric | 201 to 500 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## What do construction companies in Chicago do? Construction is a broad label. The most common NAICS codes among them are 236220 (21%), 236115 (8%) and 238210 (6%). **Figure: What construction companies in Chicago do.** Bars for the share of counted construction companies with each code: 236220 21%, 236115 8%, 238210 6%, 238910 6%, 238220 5%, 236118 3%, 237310 3%. *Share of counted construction companies in Chicago by their NAICS code.* [NAICS 236220](https://enrich.chat/naics/236220/)[NAICS 236115](https://enrich.chat/naics/236115/)[NAICS 238210](https://enrich.chat/naics/238210/)[NAICS 238910](https://enrich.chat/naics/238910/)[NAICS 238220](https://enrich.chat/naics/238220/)[NAICS 236118](https://enrich.chat/naics/236118/)[NAICS 237310](https://enrich.chat/naics/237310/) ## How big are they? 77% of the construction companies counted in Chicago have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of construction companies in Chicago.** Seven columns for the share of counted construction companies in Chicago in each employee range: 11 to 50 77%, 51 to 200 16%, 201 to 500 5%, 501 to 1,000 1%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted construction companies in Chicago in each employee range.* ## How old are they? Most were founded in the 2010s (29%), then the 2000s (21%). **Figure: When construction companies in Chicago were founded.** Eight columns for the share of counted construction companies in Chicago founded in each era: Before 1960 16%, 1960s 4%, 1970s 5%, 1980s 9%, 1990s 13%, 2000s 21%, 2010s 29%, 2020s 3%. *Share of counted construction companies in Chicago by the era they were founded in, for the ones that list a founding year.* ## How construction companies compare - 32% were founded in 2010 or later, against 54% across other cities on this site. ## How do you reach the people at construction companies in Chicago? The people to talk to are usually owners, operations and procurement leaders. Build the list in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the construction companies in Chicago, IL ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the owners, operations and procurement leaders at construction companies in Chicago, IL, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore Other industries in Chicago: [Real Estate Companies](https://enrich.chat/companies-in/chicago-il/real-estate/)[IT Services Companies](https://enrich.chat/companies-in/chicago-il/it-services-and-it-consulting/)[Financial Services Companies](https://enrich.chat/companies-in/chicago-il/financial-services/)[Advertising Agencies](https://enrich.chat/companies-in/chicago-il/advertising-services/)[Software Companies](https://enrich.chat/companies-in/chicago-il/software-development/)[Hospitals and Health Care Organizations](https://enrich.chat/companies-in/chicago-il/hospitals-and-health-care/)[Consulting Firms](https://enrich.chat/companies-in/chicago-il/business-consulting-and-services/)[Nonprofit Organizations](https://enrich.chat/companies-in/chicago-il/non-profit-organizations/)[Law Firms](https://enrich.chat/companies-in/chicago-il/law-practice/)[Technology and Internet Companies](https://enrich.chat/companies-in/chicago-il/technology-information-and-internet/)[Staffing and Recruiting Firms](https://enrich.chat/companies-in/chicago-il/staffing-and-recruiting/)[Legal Services Firms](https://enrich.chat/companies-in/chicago-il/legal-services/)[Education Organizations](https://enrich.chat/companies-in/chicago-il/education-administration-programs/)[Logistics and Supply Chain Companies](https://enrich.chat/companies-in/chicago-il/transportation-logistics-supply-chain-and-storage/)[Colleges and Universities](https://enrich.chat/companies-in/chicago-il/higher-education/)[Insurance Companies](https://enrich.chat/companies-in/chicago-il/insurance/)[Architecture Firms](https://enrich.chat/companies-in/chicago-il/architecture-and-planning/)[Manufacturers](https://enrich.chat/companies-in/chicago-il/manufacturing/)[Food and Beverage Manufacturers](https://enrich.chat/companies-in/chicago-il/food-and-beverage-manufacturing/)[All of Chicago](https://enrich.chat/companies-in/chicago-il/) Construction Companies in other cities: [Houston, TX](https://enrich.chat/companies-in/houston-tx/construction/)[New York, NY](https://enrich.chat/companies-in/new-york-ny/construction/)[Phoenix, AZ](https://enrich.chat/companies-in/phoenix-az/construction/)[Dallas, TX](https://enrich.chat/companies-in/dallas-tx/construction/)[Austin, TX](https://enrich.chat/companies-in/austin-tx/construction/)[Miami, FL](https://enrich.chat/companies-in/miami-fl/construction/)[Los Angeles, CA](https://enrich.chat/companies-in/los-angeles-ca/construction/)[Denver, CO](https://enrich.chat/companies-in/denver-co/construction/)[San Diego, CA](https://enrich.chat/companies-in/san-diego-ca/construction/)[San Antonio, TX](https://enrich.chat/companies-in/san-antonio-tx/construction/) ## Frequently asked questions ### Which are the biggest construction companies in Chicago? Among those counted, they include Bechtel, Holcimus, Clayco, Roadsafe Traffic Systems and Meade, ranked by headcount range. ### How big are construction companies in Chicago? 77% of those counted have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. ### Which companies count as construction? Companies whose public profile lists Construction as their industry and whose headquarters are in Chicago, IL. ## Try this prompt Find the people at construction companies in Chicago ```text Use www.enrich.chat to find the owners, operations and procurement leaders at construction companies in Chicago, IL, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Real Estate Companies in Chicago](https://enrich.chat/companies-in/chicago-il/real-estate/) - [IT Services Companies in Chicago](https://enrich.chat/companies-in/chicago-il/it-services-and-it-consulting/) - [Financial Services Companies in Chicago](https://enrich.chat/companies-in/chicago-il/financial-services/) - [Advertising Agencies in Chicago](https://enrich.chat/companies-in/chicago-il/advertising-services/) - [Construction Companies in Houston](https://enrich.chat/companies-in/houston-tx/construction/) - [Construction Companies in New York](https://enrich.chat/companies-in/new-york-ny/construction/) - [Construction Companies in Phoenix](https://enrich.chat/companies-in/phoenix-az/construction/) - [Construction Companies in Dallas](https://enrich.chat/companies-in/dallas-tx/construction/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)