The economyRail junctions, trading floors and a million sole proprietors.
The Department of Commerce and Economic Opportunity pitches Illinois as the only state served by every U.S. Class I freight railroad, with three international airports, the third-largest interstate highway system and more than a dozen ports and waterways. Its list of core industries follows from that position: agribusiness and food processing, advanced manufacturing, energy, life sciences, business and professional services, and transportation, distribution and logistics. The Bureau of Labor Statistics counts about 1.22 million Illinois jobs in trade, transportation and utilities in its preliminary August 2026 estimate — the largest single group in a nonfarm workforce of roughly 6.18 million.
The white-collar weight sits around Chicago. BLS counts 908,700 professional and business services jobs statewide; the two-state Chicago–Naperville–Elgin metro, which also takes in part of northwest Indiana, counts 820,200 in the same sector on its own, alongside 303,100 in financial activities. Law, accounting, consulting, insurance and trading firms produce documents, reconciliations and client correspondence at a volume that punishes manual handling. Manufacturing remains a large employer too, at 571,400 jobs statewide.
The Census Bureau’s counts round out the picture: 322,415 employer establishments in 2023, with about 5.66 million people on their payrolls, plus 1,120,413 nonemployer businesses — freelancers, owner-operators and single-truck carriers among them. Most Illinois companies are therefore small and mid-sized operators whose systems grew one purchase at a time, which is where connecting existing systems is most likely to pay back.