0001877939 2022-10-12 2022-10-12 false 0001877939 --12-31 MD 8-K 2022-10-12 CASTELLUM, INC. NV 001-41526 27-4079982 3 Bethesda Metro Center Suite 700 Bethesda 20814 301 961-4895 false false false false Common stock, par value $0.0001 per share CTM NYSE true true