HOUSTON, TX–(Marketwired – April 22, 2014) – Sigma Cubed Inc. (SIGMA3) announces the appointment of Janet McGuire as Denver Operations Manager forMicroseismic and Borehole Seismic Imaging (MS/BSI). She will take the lead in streamlining a growing influx of time-sensitive microseismic and borehole seismic imaging projects to enable clients to perform the most effective stimulation and completions programs.