Telecom companies in Illinois
5 telecom companies are indexed in Illinois. Each entry below is built from public sources and links to its filings and identifiers. This is a factual directory, not a ranking.
| Company | Industry | Type | Ticker | Revenue (dated) |
|---|---|---|---|---|
| Motorola Solutions | Telecom | public | MSI | $12B (FY 2025) |
| Telephone and Data Systems | Telecom | public | — | — |
| Harrisonville Telephone Company | Telecom | private | — | — |
| Motorola Mobility | Telecom | subsidiary | — | — |
| Consolidated Communications | Telecom | private | — | — |
See all Illinois companies or alltelecom companies.