Kleiner Perkins Caufield & Byers (KPCB) is a well known Silicon Valley venture capital firm, due in large part to their past success. They were early investors in many significant companies, including Amazon, AOL, Compaq, Electronic Arts, Google, Intuit, Macromedia, Netscape, Segway, and Sun Microsystems. Commercial services, computer hardware, healthcare devices and supplies, media, financial services, pharmaceuticals and biotechnology, software.