KSW ( KSW) KSW furnishes and installs high-end ($3 million and up) heating, ventilation and air-conditioning ("HVAC") systems and process piping systems for institutional, industrial, commercial, high-rise residential and public works projects primarily in the New York City area. This company is dirt cheap. Mastech Holdings ( MHH) Mastech Holdings provides information-technology staffing and consulting services to large and medium-sized organizations in the U.S. This company also has lots of potential. Premier Exhibitions ( PRXI) Premier Exhibitions develops and tours museum-quality exhibitions worldwide. It is an interesting investment opportunity because it trades below the value of Titanic artifacts. Disclosure: The author owns KSW, MHH and PRXI as of the date of this article.