| Pioneer_Railcorp Holding company with subsidiaries which provide railroad transportation services, such as shipping links for customers along its routes and interchanges with major railroads. (Nasdaq: PRRR). |
| Pioneer-Standard_Electronics,_Inc_ Distributes industrial and consumer electronic products, including resistors, relays, micro-processors, wire and cable, capacitors, computers and other computer peripheral products. (Nasdaq: PIOS). |
| Piper_Jaffray_Companies Provides a range of investment products and services, including underwriting, brokerage, and asset management to individual and institutional investors. (NYSE: PJC) |
| Pixelworks,_Inc_ Semiconductor company which designs, develops and markets highly integrated system-on-a-chip solutions for broadband communications. (Nasdaq: PXLW). |
| Planar_Systems,_Inc_ Develops, manufactures and markets electroluminescent flat panel displays, cathode ray tube displays, active matrix liquid crystal displays, backlights and passive matrix liquid crystal display produc |
| Platinum_Software_Corp_ Provider of integrated, end-to-end, industry-specific enterprise software solutions for midmarket companies around the world. |
| PMI_Group,_Inc_ Private mortgage insurers located in the United States, Australia, New Zealand, and the European Union. The largest mortgage guaranty reinsurer in Hong Kong. |
| P&O_Princess_Cruises_plc Cruise liner operator. Features financial reports, share price, and press releases. ( NYSE: POC ) |
| PolyMedica_Corporation Provides direct-to-consumer specialty medical products and services, including diabetes supplies such as glucose test strips, consumer healthcare products such as over-the-counter medical devices and |
| Poof_Toys Manufacturer and supplier of foam toys catering to all major sports and "promoting activity, education and soft, safe fun for children of all ages." |
| Poore_Brothers,_Inc_ Manufactures and distributes potato chip and other snack food products. (Nasdaq: SNAK). |
| Pope_and_Talbot,_Inc_ Manufactures softwood lumber and market pulp in the United States and Canada. |
| PopMail_com_Inc_ Develops, owns and operates upscale casual restaurants with multiple themed dining rooms. (Nasdaq: POPM). |
| Powell_Industries,_Inc_ Holding company with subsidiaries which design, develop, manufacture, sell and service electrical power generation distribution and control equipment, as well as microprocessor-based control systems a |
| Power_Integrations,_Inc_ Designs, develops, manufactures and markets proprietary, high-voltage, analog integrated circuits for use in ac to dc conversion. (Nasdaq: POWI). |
| PowerGen_PLC Provides startup and engineering support to the power industry, utilizing management and technical services of experienced consultants, engineers, and technicians. |
| Precis_Inc_ national membership marketing solutions company and provider of smart card technology and software. Includes information on products and services, and investor relations. (Nasdaq: PCIS). |
| Precision_Auto_Care,_Inc_ Franchises and operates automobile repair and maintenance, and fast oil change and lubrication service centers. (Nasdaq: PACI). |
| Precision_Castparts_Corporation Manufacture investment and forged castings for a range of industrial application. Features product data, investor information, and company nes.(NYSE: PCP) |
| Precision_Optics_Corporation,_Inc_ Designs, manufactures and sells specialized optical systems and components for medical and industrial applications, and optical thin film coatings for industrial and government applications. (Nasdaq: |
| Predictive_Systems,_Inc_ Provides consulting services for the design, performance, management and security of complex business-critical computing networks. (Nasdaq: PRDS). |
| President_Casinos,_Inc_ Operates two casinos across the country: the Admiral in Saint Louis Missouri, and the Broadwater Resort in Biloxi Mississippi . Includes investor relations, company news and events and management team |
| Presstek,_Inc_ Designs and develops fully integrated four-color electronic page composition and printing system, which accepts digital files of fully composed pages from a variety of color electronic prepress and de |
| Previo,_Inc_ Designs, develops, markets and supports storage management and communications solutions which feature disaster recovery, communications and security capabilities important to internet-connected enterp |
| PRI_Automation,_Inc_ Manufactures factory automation systems, process tool wafer-handling systems and related software used by semiconductor manufacturers to automate the fabrication of integrated circuits in cleanroom ma |
| PriceSmart,_Inc_ Owns and operates international merchandising businesses consisting of membership shopping warehouses; And formerly offered discounts on new cars and travel services to its members. (Nasdaq: PSMT). |
| Prime_Medical_Services,_Inc_ Holding company with subsidiaries which provide lithotripsy services to hospitals. (Nasdaq: PMSI). |
| Prime_Response,_Inc_ Provides integrated e-marketing software solutions which enables businesses with large customer bases to create, manage and execute highly targeted internet and traditional marketing campaigns which b |
| PrimeMedia A targeted media company in the United States, delivering content, live events, and video. Also offers advertising and marketing solutions in some of the most sought after niche markets. |
| PrimeSource_Corporation Distributes printing and imaging supplies including film, plates and proofing and photographic chemicals. (Nasdaq: PSRC). |
| Primus_Telecommunications_Group,_Inc_ Provides international and domestic long distance, internet access and data, and other telecommunications services. (Nasdaq: PRTL). |
| Printware Designs, builds and markets systems referred to as plate-setters, which are used by offset printing industry to create printing plates directly from computer data. (Nasdaq: PRTW). |
| Private_Business,_Inc_ Develops and markets electronic commerce enabled software solutions used by financial institutions to purchase and manage small business receivables. (Nasdaq: PBIZ). |
| ProBusiness_Services,_Inc_ Provides employee administrative services, including payroll processing, payroll tax filing, human resources software and benefits administration, such as enrollment and processing of flexible benefit |
| ProCyte_Corp_ Publicly-held healthcare company. Specializes in its patented GHK and AHK copper peptide technologies. |
| Prodigy_Communications_Corporation Provides internet access and related value-added services. (Nasdaq: PRGY). |
| Promotions_com_Inc_ Provides technological, business and creative infrastructure necessary to effectively produce and conduct online promotions, including sweepstakes. (Nasdaq: PRMO). |
| Protective_Life_Corp_ Protective Life Corporation provides financial security through insurance and investment products to individuals and families across the United States. |
| Protocol_Systems,_Inc_ Designs, manufactures and markets patient monitoring instruments and systems which measure, display and document physiologic information obtained from sensors attached to the patient, including portab |
| Province_Healthcare_Company Provides healthcare services in non-urban markets in the united states, such as inpatient and outpatient medical services, skilled nursing, geriatric psychiatry and rehabilitation, and healthcare mana |