Harmse returned to North American and signed with Los Angeles Galaxy of Major League Soccer in April 2007.

He scored his first goal for Toronto FC in the 2009 Nutrilite Canadian Championship opening game against his former team, the Vancouver Whitecaps, on May 6, 2009 at BMO Field.

On January 21, 2010, Chivas traded Harmse to Houston Dynamo for a conditional third- or fourth-round draft pick in the 2012 MLS SuperDraft.

[2] Harmse was officially signed by Vancouver Whitecaps FC on March 25, 2011,[3] but was waived on June 10, having played in just three MLS games for the club.

[4] On December 13, 2011, it was announced that Harmse signed with the expansion side San Antonio Scorpions of the North American Soccer League.