Neuromodulation encompasses a wide variety of technologies for modifying brain activity relatively non-invasively. Transcranial magnetic stimulation (TMS) is one of the most widely used methods for non-invasive stimulation of the brain in which a coil is placed near the head, inducing small electric currents in the region of the brain just under the coil. We offer highly flexible TMS stimulators designed for research, with or with out concurrent EEG. TMS is generally used to stimulate centrally, but it can be used to stimulate peripherally as well.