David, been awhile since we corrseponded last.
The Confederate government “authorized the President to receive into the service of the Confederate Government as part of the Provisional Army of the Confederate States such forces in the services of the States as might be tendered or that might volunteer for not less than 12 months. They could be received as companies, battalions, or regiments.” In the case of the 9th Alabama Regiment, 2 companies from Limestone County we’re raised by Thomas Hobbs and George Houston. They were sent to Richmond whee they were combined with 8 other companies to form the regiment.
I have never seen total numbers for all Confederate companies that was given in one place. The best I could recommend would be to assume 10 companies per regiment, multiply that number times the number of regiments from each Confederate State. The only exception would be to reduce the number for battalions. I assume you are only looking at front line infantry, and not home guard and other branches of service.
The only references I can recommend are: The Confederacy Henry Putney Beers, National Archives & Records Administration (guide to the archives for Confederate Records); Numbers and Losses in the Civil War in America 1861-1865, Thomas L. Livermore.