Brenner was involved in dam projects worldwide for almost 30 years. Projects included the Atatürk Dam in Turkey and the Mosul Dam in Iraq, two of the largest rockfill dams in the world. Besides dams, he was involved in geotechnical analysis for the Suvarnabhumi Airport in Bangkok and the foundation design of the 372 m high Liberation Tower (Kuwait). He was called to inspect damages of earthquakes to dams such as the Sefidrud Dam or several dams in China damaged by the 2008 Wenchuan earthquake.