[2][4] In 2010, Helgadóttir ran the Best Party's campaign in Reykjavik's election, resulting in a shock win which made Gnarr mayor of the city.
During Gnarr's tenure as Reykjavik mayor, which ended in 2014, Helgadóttir was his close confidante and advisor and served as CEO of the Best Party.
[10] In the Bright Future's first election in April 2013, the party received 8.2% of the general vote, giving it six out of the 63 seats in Iceland's parliament.
[11] In 2015, Helgadóttir served as a parliamentarian for Bright Future in place of her colleague Björt Ólafsdóttir while she was on maternity leave.
[13] In 2015, Helgadóttir co-founded the Reykjavík-based startup incubator and marketing firm EFNI with American entrepreneur Oliver Luckett.