The German manufacturer Grom (part of Dr. Maisch) produces HPLC columns for highly efficient and fast chromatography. With the comparatively short NovoGROM columns, a significantly higher sample throughput is possible. Various GromSil phases are available, including eight different C18 and six different C8 phases. Furthermore, Grom offers HPLC columns for amino acid analysis.
Here you can find more information about GromSil phases.