She is a co-chair of European intersex organization OII Europe, a co-founder of Intersex Iceland, and chairman of the board of the Icelandic Human Rights Centre.
[3] She is co-chair and spokesperson[8] of OII Europe and chairperson of the board of the Icelandic Human Rights Centre.
[3] Anderson has spoken against secrecy and shame associated with intersex: When I found out I was 13 and I completely freaked out.
[9][10] In an interview with NIKK, Anderson has stated that "surgeries will continue until we get a law that prohibits them".
[17] In 2015, Anderson campaigned to change terminology in the biology curriculum in Icelandic schools, and dictionaries, after finding out that the word intersex was being translated into Icelandic as "freak".