Karolina Lisslö is the General Secretary at Mattecentrum and Mathplanet, a NGO offering free help with homework in mathematics both through math labs around Sweden as well as online in Swedish, Arabic and English. Karolina has a background within social entrepreneurship and also founded Bee Urban. She has always based her engagements on doing good not only for the cause she is supporting but for all stakeholders involved, building strong networks, communities and long term commitments. Mattecentrum was awarded the Grand Swedish Communicators award 2019.