CREmedical is the pioneer of tripolar concentric ring electrodes (TCREs). Our TCRE based electroencephalography (tEEG) sets a new standard for physiological sensing and brain-computer-interface. Our TCRE based transcranial focal electrical stimulation (TFS) provides a new paradigm for neuromodulation. Our integrative tEEG+TFS platform creates new capacities to image brain function and modulate the brain state.