2017 Top 100
14: AT&T Inc.
| Top 100 Revenue: | $1,967,208,000 |
| Defense Revenue: | $767,211,000 |
| Civilian Revenue: | $1,199,997,000 |
| 2016 Revenue: | N/A |
| 2016 Earnings: | N/A |
| 2015 Revenue: | $146.8 billion |
| 2015 Earnings: | $13.34 billion |
| Number of employees: | N/A |
| Headquarters: | San Antonio |
| Website: | www.att.com |
| Leadership: | Randall Stephenson, chairman and CEO Kay Kapoor, president, AT&T Global Public Sector |
| Ticker: | T |
| Lines of business: | AT&T Government: Civilian, Defense, Public Safety |
| Major customers: | N/A |
| Major contracts/projects: | Networx, FSSI Wireless BPA, EAGLE, CTS, Connections II, TacCom, Seaport-e |