Here is one list. Accessing the American Civil War Research Database will reveal formation dates.

1st Battalion, Virginia Reserves - 363 men
1st Regiment, Virginia Reserves - 194 men
1st Regiment, Virginia Reserves (Farinholt's) - 1000 men
1st Regiment, Virginia State Reserves (2nd Class Militia) - 1322 men
2nd Regiment, Virginia State Reserves - 1216 men
2nd Battalion, Virginia Reserves - 170 men
3rd Battalion, Valley Reserves, Virginia (Augusta County) - 255 men
3rd Regiment, Virginia Reserves (Booker's) -
3rd Battalion, Virginia Reserves (Chrisman's) - 338 men
3rd Battalion, Virginia Reserves (Archer's) - 467 men
4th Battalion, Virginia Reserves - 37 men
4th Regiment, Virginia Reserves - 993 men
5th Battalion, Virginia Reserves (Henry's) - 206 men
6th Battalion, Virginia Reserves - 1204 men
7th Battalion, Virginia Reserves - 367 men
7th Infantry Battalion Reserves - 367 names
8th Battalion, Virginia Reserves (1st Battalion, Valley Reserves) 332 men
9th Battalion, Virginia Reserves (1st Battalion, Valley Reserves) - 332 men
9th Battalion, Virginia Reserves (2nd Battalion, Valley Reserves) - 287 men
10th Battalion, Virginia Reserves (4th Battalion, Valley) - 333 men
11th Battalion, Virginia Reserves - 715 men

http://www.researchonline.net/vacw/vaunits.htm#.VbqQMIu9-6E