Ingunn is the general manager of Jarðvarmi slhf. Previously Ingunn was a Director of Administration and Communication at Skeljungur hf., a company listed on Nasdaq Iceland, heading internal and external communication, incl. legal matters, marketing, public relations and human resources, and before that the company´s general counsel, compliance officer and secretary to the board. Ingunn holds a B.A. and M.A. degree in law and an MBA from the University of Iceland, as well as being a certified district court attorney and securities broker.

Ingunn is currently a board member of Sjóvá Almennar tryggingar hf. (insurance company), HS Orka hf. (electricity producer and provider), Freyja slhf. (private equity fund) and the Wetlands fund (environmental NGO).