The Marine Biological Association (MBA) is a leading marine biological research organisation, founded in the UK in 1884 and granted a Royal Charter in 2013 in recognition of its status in marine biology. The MBA research programme addresses key issues in biogeochemical and ecological processes and runs a programme of long-term sustained observations in the marine environment. The MBA provides a range of state-of-the-art facilities and expertise along with access to diverse coastal and offshore ecosystems. MBA is a member of several successful networks of excellence, including Euromarine MarBEF, Marine Genomics Europe, EMODnet, and is a founding partner of the EMBRC.

ASSEMBLE Plus access services are offered by MBA itself. 

MBA will offer transnational acces (TA), and will contribute to NA2, NA3, NA4, JRA1, JRA2, JRA3 and JRA4.