Meelis havs been involved in the movement of people with disabilities and chronicle disease patients since about 2000. His field of activity has been to strengthen the national umbrella organization with currently 55 member organizations and growing, supporting cross-border cooperation and work at EU and international level.

He is board member of Estonian Agrenska Foundation, an Estonian-Swedish permanent cross-border foundation to assist families with children with disabilities, with diminishing burden of care, provide peer counselling for rare diseases, advocate for rights to be fully included in the society.

He has been member of European Economic and Social Committee, an advisory body to the European parliament and European Commission. He as well have been very hands on with the UN Convention on the right of people with disabilities, having been involved with the shadow report drafting for Estonia-s state review. Next report is due in 2026, where with his organisation is going to contribute as well.

He has been leading many cross-border cooperation projects, also with EDF as partner. Of recent ones and some are in applycation phase.