OntoCommons aims at working toward interoperability by means of harmonization with respect to upperlevel ontologies and facilitating agreement in domain ontology development. As part of the effort of work package 2, an objective of OntoCommons is to provide alignments among existing MLOs from different TLO branches. This task needs to perform several activities, such as identification of existing MLOs and corresponding disciplines that are to be covered by the alignment effort, the definition of the expected level of alignment that is to be performed for the MLOs and finding gaps in the disciplines which may be filled with new MLO development. A beta version of the harmonized MLO is planned to be published in the 18th month of the project. This report associates the current development and describes the methodology, list of disciplines and MLOs considered and other technical details.