Inspired and encouraged by his father, John Marris (who in 1973 planted the first vineyards in Marlborough for the erstwhile Montana Wines), Brent went to Roseworthy Agricultural College in South Australia, becoming Marlborough's first locally born and raised qualified winemaker.
In 1985, Brent was appointed to the role of Chief Winemaker for Delegats Wine Estate. Here he was responsible for the establishment of the Oyster Bay wine style, travelling the world to launch the brand, which is still one of the most prominent New Zealand brands internationally.
In 1994, he returned to his roots to establish Wither Hills with his father as viticulturist. The brand soon became critically acclaimed and Wither Hills flourished commercially. After the company was sold to Lion Nathan, Brent stayed on to manage the Wither Hills operation until 2007, when he started devoting his full attention to his new venture.
Seeking new challenges, Brent searched the Marlborough region for the ideal vineyard site to establish a new international brand. In 2003, he found his ideal location on the banks of the Waihopai River. Grapes from here were used to launch The Ned brand.