Dredging, Environmental and Marine Engineering NV (in short DEME) is an international group of specialised companies in the field of capital and maintenance dredging, land reclamation, port infrastructure development, related services for the oil & gas industry, farshore windfarm installation, environmental remediation a.o. The group is based in Zwijndrecht, Belgium, and has current operations on the five continents. The roots of the group date back to the mid 19th century. DEME is committed to the practice of sustainable development. In 2009, the Flemish government agency Flanders Investment and Trade awarded the Export Lion 2009 to DEME for what was called its 'sustainable strategy of internationalization' and 'the many prestigious assignments carried out worldwide'. In a survey by temporary employment company Randstad Holding of 12,000 Belgians in early 2010 DEME was proclaimed one of the most attractive employers in Belgium.

In Ancient Greece, a deme or demos was a suburb of Athens or a subdivision of Attica, the region of Greece surrounding Athens. Demes as simple subdivisions of land in the countryside seem to have existed in the 6th century BC and earlier, but did not acquire particular significance until the reforms of Cleisthenes in 508 BC. In those reforms, enrollment in the citizen-lists of a deme became the requirement for citizenship; prior to that time, citizenship had been based on membership in a phratry, or family group. At this same time, demes were established in the city of Athens itself, where they had not previously existed; in all, at the end of Cleisthenes' reforms, Attica was divided into 139 demes to which one should add Berenikidai, established in 224/223 BC, Apollonieis (201/200 BC) and Antinoeis (126/127). The establishment of demes as the fundamental units of the state weakened the gene, or aristocratic family groups, that had dominated the phratries.

Dèmè is a small town and arrondissement located in the commune of Adjohoun in the Borgou Department of Benin. Agriculture is the main industry lying in the fertile Ouémé River Valley of southern Benin. In 2008 during the 2008 Benin floods, the area was affected by the flooding of the Ouémé River which affected much of Adjohoun commune.