This paper uses a multidisciplinary and systematic review of 45 journal articles and two case interviews to investigate the role of public support organizations in the development of eco-innovations. Even though eco-innovations are regarded as a driving force within sustainable development, entrepreneurs developing such innovations face barriers such as lack of some technical expertise, limited financial, time and human resources. Generally, two aspects are needed for eco-innovation support i.e. support for technology as well as business development. The selected public support organizations offered business development support through networking, bridging and financing. However, preliminary findings on their current support activities indicate bridging to other actors who can provide technical expertise such as environmental impact assessment and eco-design could be a promising addition to business development. Potential further research includes deeper empirical investigations on the role of public support actors in the development of eco-innovations.