United States Steel Corporation Manufacture and sell a variety of steel mill products, coke and taconite pellets. features products and markets, corporate profile and history, and facilities. (NYSE: X) http://www.ussteel.com

UQM Technologies, Inc. Develop and manufacture energy efficient, power dense electric motors, generators and electronic inverters. Includes product and technology data, financial information, news, and job opportunities. (AMEX: UQM) http://www.uqm.com/

UniFirst Corporation Supplier of uniforms and work clothing to a range of industries. Features corporate data, service and product information, and employment opportunities. (NYSE: UNF) http://www.unifirst.com/

Ultradata Systems, Incorporated Designs, manufactures and markets handheld electronic data retrieval computers which provide directions and various travel services information. (Nasdaq: ULTR). http://www.ultradatasystems.com/

Ultralife Batteries, Inc. Develops, manufactures and markets lithium batteries for use in applications requiring high energy, reliable and long-lasting power sources. (Nasdaq: ULBI). http://www.ulbi.com/

Unibanco - Uniao de Bancos Brasileiros S.A. Provides a range of banking services in Brazil. Includes online services and investor information. (NYSE: UBB) http://www.unibanco.com.br/

Union Pacific Corporation Transportation company comprised of three operating companies including railroad, overnight transportation, and affiliated technology companies. Features a range of corporate and service data. (NYSE: UNP) http://www.up.com/

United Utilities PLC Utilities organization with interests in water, wastewater and telecommunications. Main operational area is the united kingdom. Features online services, corporate data, and environmental issues. (NYSE: UU) http://www.unitedutilities.com/

UnitedHealthcare Designs and operates health benefits systems with commercial, Medicare and Medicaid products. Group plans for employers; medical coverage for self-employed individuals in some states. Golden Valley, Minnesota. (NYSE: UNH). http://www.uhc.com/

Unitrin, Inc. Provides life and health insurance, property and casualty insurance and consumer financing services such as personal and industrial loans. (Nasdaq: UNIT). http://www.unitrin.com/

Unova, Inc. Industrial technologies company with interests in automated data systems and industrial automation systems . Features business segments, investor information, and career opportunities. (NYSE: UNA) http://www.unova.com/

U.S. Technologies, Inc. Develops and operates a network of technology and related companies. Services include outsource manufacturing and public and investor relations. Includes links to subsidiaries and investor information. (OTC: USXX) http://www.usxx.com/

UroMed Corporation Develops, manufactures and markets male and female healthcare products for prostate cancer, urinary incontinence, and breast cancer in both hospital-based and urinary incontinence consumer-oriented fields. (Nasdaq: URMD). http://www.uromed.com/

USA Truck, Inc. Provides truck carrier services, such as irregular route, medium haul, common and contract services specializing in truckload quantities of general commodities. (Nasdaq: USAK). http://www.usa-truck.com/

USDATA Corporation Produces automation software tools which enable information systems of organizations to supervise, monitor and control manufacturing and other automated processes. (Nasdaq: USDC). http://www.USDATA.com/

UniComp, Inc. Develops, markets and supports platform-migration, vertical market applications and e-commerce payment processing systems. (Nasdaq: UCMP). http://www.unicomp.com/

U.S. Global Investors, Inc. Provides investment advice and management services, transfer agency and record keeping services, mailing services, and custodial and administrative services for retirement plans. (Nasdaq: GROW). http://www.US-GLOBAL.com/

U.S. Laboratories, Inc. Provides construction materials, testing and engineering services. (Nasdaq: USLB). http://www.uslaboratories.com/

U.S. Physical Therapy, Inc. Develops, owns and operates outpatient physical therapy and occupational therapy clinics which provide post-operative care and treatment for a variety of orthopedic-related disorders and sports-related injuries. (Nasdaq: USPH). http://www.usphysicaltherapy.com/

U.S. Vision, Inc. Operates retail vision care stores which offer prescription eyewear and accessories with an on-premises, independent optometrist who performs complete eye examinations and prescribes eyeglasses and contact lenses. (Nasdaq: USVI). http://www.usvision.com/