Kleiner Perkins Caufield & Byers (KPCB) focuses on investments in the life sciences, biodefense, green technology, information technology and companies with new technologies related to the iPhone and iPod touchpad platform.The firm's information technology investments focus on the consumer, enterprise, semiconductors, security and communications industries. They invest primarily in early-stage ventures that are incubating new companies with proven entrepreneurs and good ideas.KPCB's life sciences investments include medical devices, drugs, vaccines, personalized medicine, diagnostics and healthcare information technology and services. Their pandemic and biodefense investment initiative focuses on investments in companies with innovations in disease surveillance, rapid diagnostics, new vaccine technology, portable and less expensive manufacturing of vaccines and new antiviral drugs.The firm's iFund invests in market-changing ideas and products that extend the iPhone and iPod touch platform. The Fund invests across all sizes and stages. KPCB targets investments in companies that are developing applications, services and components. Their specific areas of interest include: location-based services, social networking, eCommerce (including advertising and payments), communication and entertainment.