Applications and organizations using Hama include (alphabetically):

• DataSayer, Inc.
  • We're using Apache Hama for performing advanced Big Data analytics.
    
• Korea Telecom
  • Network Traffic Analysis
  • 16 nodes Hama Cluster
  • 48G memory and 16 cores per node
    
• Sogou.com
  • 300 nodes Apache Hama Cluster for SiteRank
  • 48G memory and 24 cores per node
  • Dataset is about 400GB contains 600M+ vertices
    
• University of the State of Mato Grosso and Faculty Campo Limpo Paulista
  • 12 microcomputers totaling 30 cores
  • Graphs with up to 65,000 vertices
  • Study of an exact solution to the problem of centrality in large graphs.