Who sells to AT&T
5 listed companies name AT&T as a customer behind 10% or more of their revenue, led by Crown Castle at 27%.
Each share is of the supplier’s own revenue: how much of its business AT&T is. AT&T's own customers and margins
Suppliers that name AT&T
AT&T as a share of each supplier's revenue, largest first.
| Supplier | Of its revenue | Annual report |
|---|---|---|
| CCICrown Castle | 27% | FY2025 10-K |
| DYDycom Industries | 25% | FY2026 10-K |
| SBACSBA Communications | 20% | FY2025 10-K |
| AMTAmerican Tower | 17% | FY2025 10-K |
| MTZMasTec | 10% | FY2025 10-K |
A US company has to name every customer behind 10% or more of its revenue in its annual report. This page lists the listed companies whose latest 10-K, 20-F or 40-F names AT&T that way. Suppliers below the 10% line, private suppliers and suppliers that keep the customer anonymous do not appear. Who depends on whom has the same disclosures across every company.