Barnes & Thornburg
| Headquarters | Indianapolis, Indiana, US |
|---|---|
| No. of offices | 23 |
| No. of attorneys | approximately 750 |
| No. of employees | 1,700 |
| Major practice areas | Full service law, lobbying |
| Key people | Andrew Detherage, firm managing partner |
| Date founded | 1982 |
| Company type | Limited liability partnership |
| Website | btlaw.com |
Barnes & Thornburg LLP is a U.S. law firm and lobbying group with 23 offices located in the United States. It is the largest law firm in Indiana and ranks 73rd among the largest law firms in the U.S.