The international collaboration becomes essential among Occupational Health Centre (OHC) activities year by year. By being active on the international projects, OHC is endeavour to effectively transmit the latest knowledge in occupational health from abroad to be applied to Lithuanian work life.

In 1994 OHC (previously called Occupational Medicine Centre) in collaboration with Latvian and Estonian partners and active support of Finnish Institute of Occupational Health has initiated WHO/EURO project on ‘Strengthening of occupational health services in the Baltic Countries'. According to this project OHC as well as another project partners from all participating countries annually present the Country Report for the elaboration of WHO recommendations to solve actual problems of health and safety at work.

Since 1994 OHC has participated in WHO/EURO seminars with the Country Reports on national models and functions of occupational health services (Lodz, 1994), national resources and needs for occupational health and safety (OH&S) (Copenhagen, 1995), OH&S trends and indicators (Riga, 1996), OH&S information systems (Vilnius, 1997), use of ICD-10 in occupational medicine (Geneva, 1998), OH&S telematic information (Berlin, 1999).

In the year 2011 OHC participated in International Forum on Occupational Health and Safety: Policies, Profiles and Services.
The aim of the International Forum organised in Helsinki, Finland was to look into occupational safety and health policies and profiles and make an inventory, and then to continue with the introduction and further development of occupational health services, Basic Occupational Health Services in particular. In addition, time was reserved for discussing the practical tools for solutions and good practices. The intention was to come up with recommendations for further actions for more sustainable solutions in the world of work.

In the year 2011 OHC participated in 8th Partnership Annual Conference side-event on Healthy lifestyle - the cornerstone of public health, in St. Petersburg, Russia.
The aim of the event was to advance understanding of healthy lifestyles related to prevention and control of non-communicable diseases in the region. It offered policy-makers and experts from different fields an opportunity to discuss improvements in policies and strategies as well as practical action. One important topic on the agenda was discussion and agreement on the NDPHS Action Statement on the implementation of the European Strategy for the Prevention and Control of Non-communicable Diseases 2012-2016, which was submitted to the ministerial-level Partnership Annual Conference for final discussion and adoption.

In the year 2012 OHC participated in a meeting of the NDPHS Task Group on Occupational Safety and Health in Helsinki, Finland. The meeting was organised in connection with the Expert Group NDPHS/ NCD EG (Expert Group on Non-Communicable Diseases related to Lifestyles and Social and Work). The head of OHC presented the situational analysis of existing occupational health services systems in Lithuania and some NDPHS countries. The paper dealt with the analysis of the practical set-up of the occupational health services (OHS), their structure, content and professionals engaged in selected countries (Estonia, Latvia, Lithuania, Finland, Norway, Germany, Poland and the Russian Federation).