Hard to believe there's no CNC machining in Huntsville. A quick google shows:
Huntsville (Top)
Abro, Inc. 115 Wholesale Avenue NE Huntsville AL (256) 539-9572
Aero Corp. 215 Wholesale Avenue NE Huntsville AL (256) 533-7151
American Mechanical & Elect 12525 Memorial Pkwy SW Huntsville AL (256) 883-6880
Amtec Corp. 4808 Bradford Drive NW Huntsville AL (256) 722-7200
B & E Technologies 2115 Sycamore Street SW Huntsville AL (256) 539-1002
Banner Machine Company 3224 S Hi Lo Cir NE Huntsville AL (256) 533-1470
Best Machine Works 402 8th Street NW Huntsville AL (256) 533-6266
Creative Machine Company 3224c S Hi Lo Cir NE Huntsville AL (256) 539-3641
EdgeWorx 2707 University Drive Huntsville AL (256) 527-9679
Electroformed Nickel, Inc. 785 Martin Road SW Huntsville AL (256) 461-1998
Engineering & Manufacturing Service, Inc. 216 Blake Street NW Huntsville AL (256) 536-2810
Hodge Machine Company 1813 Rankin Place NW Huntsville AL (256) 721-0240
Humboldt Machine Shop 105 Plaza Drive Huntsville AL (256) 859-0283
Industrial Fabrication 527 Plummer Herman Road NW Huntsville AL (256) 859-4120
J & A Enterprises 1003 Orchard Street NW Huntsville AL (256) 534-8426
L P Manufacturing 1315 Fletcher Street NE # A Huntsville AL (256) 539-7565
M & S Machine & Fabrication 107 Maple Avenue NW Huntsville AL (256) 536-6551
MDM Machine Shop 101 Superior Avenue SE Huntsville AL (256) 880-6217
MNT Machine 2800 Bob Wallace Avenue SW Huntsville AL (256) 534-1030
Machine Craft, Inc. 3610 Meridian Street N Huntsville AL (256) 539-2221
Martech 564 Bell Factory Road Huntsville AL (256) 859-9223
New-Mac Precision Machining Company 436 Abingdon Avenue NW Huntsville AL (256) 539-3535
NSITES Technical Services Co., 2503 6th Street SW Huntsville, AL 35805 (256) 534-9364 Map
Pro Machine & Tool Company 792 Blake Bottom Road NW Huntsville AL (256) 851-9940
R & R Precision Machine Works 4922 Moores Mill Road Huntsville AL (256) 852-9653
Shin Enterprise, Inc. 171 Nick Fitchard Road NW Huntsville AL (256) 858-8085
Standard Machine & Tool 2750 Highway 72 E Huntsville AL (256) 859-8300
Tabor Machine Company 12529 Memorial Pkwy SW Huntsville AL (256) 881-4458
Tac Systems, Inc. 1035 Putman Drive NW Huntsville AL (256) 721-1976
Tin-Mar, Inc. 1011 Jordan Road Huntsville AL (256) 859-1212
Trinity Machine Service 2437 Winchester Road NE Huntsville AL (256) 851-6191
United Plating, Inc. 3400 Stanwood Boulevard NE Huntsville AL (256) 852-8700
Valley Fabrication & Machine 111 Dominion Cir Huntsville AL (256) 859-5532