 In 2000, Marcussen opened Marcussen Mastering in Hollywood, California.Since opening his facility, Marcussen has been recognized for his thorough knowledge of all current audio formats.His mastering credits have grown in the subsequent fifteen years to include albums by artists such as Miranda Lambert, Hozier, Gillian Welch, David Rawlings, Dawes, Shakira, Les Claypool, Jake Bugg, Kirk Whalum, The Decemberists, Gloria Trevi, Solomon Burke, Melissa Etheridge, Willie Nelson, Broken Bells, X Japan, Hillsong, Don Henley, k.d.