For fiscal year 2018:
ATF has 135,314 active Federal Firearms Licensees (FFL)
Type 01-Dealer: 56,460
Type 02-Pawnbroker: 7,674
Type 03-Collector: 54,228
Type 06-Manufacturer of Ammunition: 2,157
Type 07-Manufacturer of Firearms: 12,889
Type 08-Importer: 1,164
Type 09-Dealer of Destructive Devices: 108
Type 10-Manufacturer of Destructive Devices: 388
Type 11-Importer of Destructive Devices: 246
Inspections: ATF conducted the following firearm compliance inspections: 10,323
Firearms compliance inspections resulted in the following recommendations [1]:
No violations: 4,379 (42.42%)
Report of violations: 1,834 (17.77%)
Warning letter: 1,088 (10.54%)
Warning conference: 371 (3.59%)
Surrendered in lieu of revocations: 34 (0.33%)
Revocations/Denials: 49 (0.47%)
Other (out of business, etc.): 2,568 (24.88%)