Operates stores which sell new and remanufactured automotive hard parts such as alternators, starters, fuel pumps, water pumps, brake shoes and pads, maintenance items such as oil, antifreeze, fluids, engine additives and appearance products, accessories such as floor mats and seat covers, and autobody paint and related materials, automotive tools and professional service equipment. (Nasdaq: ORLY).

United Kingdom based financial services group, with an international portfolio of activities in life assurance, asset management, banking and general insurance. Features financial and shareholder data, and news. (London: OML)

Invests in Scandinavian start-up's within information and communication technology sector. Based in Virum, DK-2830, Denmark.(Nasdaq:OLCMF)

Produces different copper alloys, ammunition (Winchester) as well as chlorine and caustic soda products. Based in Norwalk, CT 06856-4500, USA. (NYSE:OLN)

Processes and distributes flat-rolled carbon, stainless and tubular steel products. (Nasdaq: ZEUS).

Provides processing and outsourcing solutions for securities transactions (OM division) and a securities market for Nordic and Baltic countries (HEX division). Based in Stockholm, SE-105 78, Sweden.(SWE:OMH)

Specializes in an integrated range of onshore seismic drilling, helicopter support and survey services to geophysical companies operating in logistically difficult and environmentally sensitive terrain in the united states. (Nasdaq: OMNI).

Holding company with subsidiaries which design, develop and distribute power transmissions equipment for agricultural, industrial, off-highway and construction vehicles. (Nasdaq: OUSA).

Holding company with subsidiaries which develop, market and support software products for the development and deployment of applications for accessing multi-user databases in workgroup and enterprise-wide client/server computing environments. (Nasdaq: OMNS).

Designs, develops and markets high performance, high quality and cost efficient semiconductor imaging devices for computing, communications and consumer electronics applications. (Nasdaq: OVTI).

Provides temporary scientific professionals to laboratories in the biotechnology, environmental, chemical, food and beverage industries. (Nasdaq: ASGN).

Holding company with subsidiaries which provide in-room video entertainment such as cable and computer controlled television viewing, primarily to business hotels. (Nasdaq: ONCO).

Provides document management, reprographic, imaging, facilities management services to law firms, corporations, non-profit organizations, accounting firms, financial institutions and other organizations throughout the east coast of the United States. (Nasdaq: ONSS).

Provides web-based business and financial information such as news, trade press, sec filings, executive biographies, analyst reports, company financial results, stock quotes and industry statistics. (Nasdaq: ONES).

Purchases, secures and services motor vehicle retail installment contracts originated by franchised and select independent automobile dealerships primarily on sales of late model used cars. (Nasdaq: ONYX).

Restores, remanufactures, manufactures and markets modular office work stations. (Nasdaq: PLAN).

Offers business services that somehow include public opinion like global brand management, survey and market research as well as call center outsourcing. Based in Princeton, NJ 08542, USA. (NASDAQ:ORCI)

Creates management software for communications networks. Its simulation-based products are used to design, build, and operate new networks and services and to predict and analyze network performance problems. (Nasdaq: OPNT).

Provides financial investment counsel to business. Includes information about the company, product and services, research and capital markets. (New York and Toronto Stock Exchanges: OPY)

Develops, manufactures and markets proprietary food ingredients which improve nutritional content, healthfulness, texture and taste of food products. (Nasdaq: OPTS).

Develops, manufactures and sells fiber optic communications products and laser systems for commercial and military customers. (Nasdaq: OPTC).

Provider of U-Scan Express automated self-checkout solutions for retail applications, as well as other payment and service solutions; includes company profile, press releases, investor relations, and career opportunities.

Provides products and services which help organizations make the transition from paper-intensive commerce to e-business. (Nasdaq: OPTO).

Provides web-based solution designed to enable corporations, professional service firms, staffing vendors and other buyers of project-based talent to identify and procure knowledge workers with technology, creative, strategic consulting and other expertise. (Nasdaq: OPUS).

Manufactures and markets pocket size throat spray, soup drops, candy breath mints, nutritional supplements and related products. (Nasdaq: OLAB).

Designs, manufactures and sells customized electronic components, power supplies, ac power sources, frequency converters and other electronic equipment. (Nasdaq: ORBT).

Develops, markets and supports sophisticated automated microwave test and measurement systems that are essential components of products such as cellular phones, satellites, radio transmitters, global positioning system receivers and guided missiles. (Nasdaq: ORFR).

Offers engineering services, especially regarding in-house direct fuel injected internal combustion engines. Based in Balcatta, 6021, Western Australia. (NYSE:OE; ASX:OEC)

Provides internet professional services, including strategic consulting, engineering and integration services, marketing and public relations services, and customer service and fulfillment consulting and transaction management services. (Nasdaq: OGNC).

Acquires, develops and markets products of high medical value intended to address inadequately treated or uncommon diseases. (Nasdaq: ORPH).

Provides national practice management and consulting services to orthodontic and pediatric dentistry practices in the united states, enabling affiliated practices to increase patient case starts and manage their operations more efficiently and profitably, thus competing more effectively with traditional practices. (Nasdaq: ORAL).

Develops, manufactures and markets proprietary, technologically advanced orthopaedic devices designed to enhance the healing of diseased, damaged or degenerated musculoskeletal tissue. (Nasdaq: OLGC).

Designs, manufactures and markets specialized components, analytical equipment and instrumentation products for original equipment manufacturers in the information technology industry, including office equipment, computers, telecommunications and consumer electronics. (Nasdaq: ORYX).

Supplies gas and heat, installs pipelines and provides other energy related services. Based in Osaka 541-0046, Japan. (TSE:9532; OSE:9532; NSE:9532)

Engineers, manufactures and markets broad range of specialized heavy duty, all wheel drive and on/off highway motor vehicles, as well as chassis, trailers and proprietary parts. (Nasdaq: OTRKB).

Designs, manufactures and provides optoelectronic devices, value-added subsystems and end-products for oems for use in broad range of applications, including security, medical diagnostics, telecommunications, office automation, aerospace, computer peripherals and industrial automation. (Nasdaq: OSIS).

Designs, manufactures and markets integrated networking and bandwidth aggregation products for enhancing performance of data and telecommunications intra-city networks. (Nasdaq: FIBR).

Provides ceramic and titanium plasma spray coating services to orthopaedic and dental implant companies. (Nasdaq: OSTE).

Operates restaurants throughout the USA and worldwide in joint ventures. Brands include "Outback Steakhouse", "Carrabba's Italian Grills" and "Lee Roy Selmon's". Based in Tampa, FL 33607, USA. (NYSE:OSI)

Offers specialty printing, converting and packaging services. (Nasdaq: OUTL).

Supplier of a wide array of medical products backed up with supply chain consulting and e-business solutions for healthcare customers. Based in Richmond, VA 23261-7626, USA. (NYSE:OMI)