Information technology consulting

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Information technology consulting

Information technology consulting (IT consulting, Computer consultancy, Computing consultancy, technology consulting or business and technology services) is a field that focuses on advising businesses on how best to use information technology

Information technology

Information technology , as defined by the Information Technology Association of America , is "the study, design, development, implementation, support or management of computer-based information systems, particularly software applications and computer hardware." IT deals with the use of electronic computers and computer software to data conv...
to meet their business objectives. In addition to providing advice, IT consultancies often implement, deploy, and administer IT systems on businesses' behalf

Outsourcing

Outsourcing is subcontracting a process, such as product design or manufacturing, to a third-party company. The decision to outsource is often made in the interest of lowering firm or making better use of time and energy costs, redirecting or conserving energy directed at the core competence of a particular business, or to make more efficient...
.

The IT consulting industry can be viewed as a three-tier system: There is a relatively unclear line between management consulting

Management consulting

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Information technology

Outsourcing

Professional services
Professional services

Professional services are infrequent, technical, or unique functions performed by independent contractors or consultants whose occupation is the rendering of such services....
firms which maintain large professional workforces and command high bill rates. These firms are increasingly sourcing their employees from low-cost nations
Offshoring

Offshoring describes the relocation by a company of a business process from one country to another -- typically an operational process, such as manufacturing, or supporting processes, such as accounting....
.
Staffing
Staffing

Staffing may refer to:* Employment agency* Human resources...
firms, which place technologists in businesses on a temporary basis. These firms are pejoratively known as "body shops
Permatemp

A permatemp is an employee whose status is somewhere between a Temporary work#Temporary workers and a permanent employee. The word is a portmanteau of the words permanent and temporary....
". While they are geographically limited by their customers, they can exploit global cost differences by bringing guest workers to their host country. Body Shops are typically distinguished from Consultancies by their commercial practice of pricing service by the day (the input), rather than by the results of their work (the outputs, or deliverables).
Independent consultants, who function as contractors (in the U.S, on "1099"), employees of staffing firms (in the U.S, employed on "W-2"), or as subcontractors in their own right.

There is a relatively unclear line between management consulting

Management consulting

Management consulting refers to both the industry of, and the practice of, helping organizations improve their performance, primarily through the analysis of existing business problems and development of plans for improvement....
and IT consulting. There are sometimes overlaps between the two fields, but IT consultants often have degrees in computer science

Computer science

Computer science is the study of the theoretical foundations of information and computation, and of practical techniques for their implementation and application in computer systems....
, electronics

Electronics

Electronics refers to the flow of charge through nonmetal electrical conductor , whereas electrical refers to the flow of charge through metal electrical conductor....
, technology

Technology

Technology is a broad concept that deals with an animal species' usage and knowledge of tools and crafts, and how it affects an animal species' ability to control and adapt to its Natural environment....
, or management information systems while management consultants often have degrees in accounting, economics

Economics

File:Ballard Farmers' Market - vegetables.jpgEconomics is the Social sciences that studies the Production theory basics, Distribution , and Consumption of Good and Service ....
, Industrial Engineering

Industrial engineering

Industrial engineering is also known as operations management, management science, systems engineering, or manufacturing engineering; a distinction that seems to depend on the viewpoint or motives of the user....
, finance

Finance

The field of finance refers to the concepts of time, money and risk and how they are interrelated. Banks are the main facilitators of funding through the provision of credit, although private equity, mutual funds, hedge funds, and other organizations have become important....
, or a generalized MBA (Masters in Business Administration).

According to the Institute for Partner Education & Development, IT consultants' revenues come predominantly from design and planning based consulting with a mixture of IT and Business Consulting. This is different from a Systems Integrator in that you do not normally take title to product. Their value comes from their ability to integrate and support technologies as well as determining product and brands.

List of major IT consulting firms

The following is a list of the largest IT consulting firms in the world, along with their corporate headquarters location and the total number of consultants they have. Many of these serve primarily as third-party consultants. Many enterprise software companies, such as SAP

SAP AG

SAP Aktiengesellschaft is the largest European software enterprise and the fourth largest in the world, with headquarters in Walldorf, Germany....
and Oracle

Oracle Corporation

Oracle Corporation specializes in developing and marketing enterprise software products ? particularly database management systems. Through organic growth and a number of high-profile acquisitions, Oracle enlarged its share of the software market....
, employ their own consultants for services related to their own products. Among the corporations listed below, the number of consultants listed is less than their total number of employees.

Asia

Name	Headquarters	Consultants
HCL Technologies HCL Technologies HCL Technologies is India?s 4th largest leading global IT Services companies, providing software-led IT solutions, remote infrastructure management services and BPO....	Noida Noida The New Okhla Industrial Development Area usually shortened to the acronym NOIDA is an area under the management of the New Okhla Industrial Development Authority .... , India India India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....	50,000+
I-flex Solutions I-flex Solutions Oracle Financial Services Software Limited is an IT solution provider to the banking industry. i-flex is majority owned by Oracle Corporation. It claims more than 840 customers in over 130 countries on Its range of applications software, custom solutions and consulting services enable financial institutions to cut costs, respond rapidly to...	Mumbai Mumbai Mumbai— formerly Bombay, is the capital of the Indian state of Maharashtra. The city proper has approximately 14 million people and, along with the neighbouring suburbs of Navi Mumbai and Thane, Mumbai forms the World's largest urban agglomerations according to the United Nations World Urbanization Prospects report with around 19... , India India India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....	10,000+
Infosys Infosys Infosys Technologies Limited is a Multinational corporation information technology services company headquartered in Bangalore, India. It is one of India's largest IT companies with over 100,000 professionals as of Sep 30, 2008....	Bangalore Bangalore Bangalore , officially Bengaluru , is the capital of the Indian States and territories of India of Karnataka. Located on the Deccan Plateau in the south-eastern part of Karnataka, Bangalore is India's List of most populous cities in India and List of most populous metropolitan areas in India.... , India India India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....	103,000+
Larsen & Toubro Infotech Larsen & Toubro Infotech Larsen & Toubro Infotech Ltd is a company providing Information Technology consulting and Software Services & solutions. It is a 100% subsidiary of the one of Asia's largest organizations, Larsen & Toubro Limited....	Mumbai Mumbai Mumbai— formerly Bombay, is the capital of the Indian state of Maharashtra. The city proper has approximately 14 million people and, along with the neighbouring suburbs of Navi Mumbai and Thane, Mumbai forms the World's largest urban agglomerations according to the United Nations World Urbanization Prospects report with around 19... , India India India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....	24,000
MphasiS MphasiS MphasiS is an information technology and business process outsourcing company based in Bangalore, India. The company was originally formed as MphasiS BFL Limited in June 2000 after the merger of the US-based IT consulting company MphasiS Corporation and the Indian IT services company BFL Software Limited....	Bangalore Bangalore Bangalore , officially Bengaluru , is the capital of the Indian States and territories of India of Karnataka. Located on the Deccan Plateau in the south-eastern part of Karnataka, Bangalore is India's List of most populous cities in India and List of most populous metropolitan areas in India.... , India India India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....	16,000
Neusoft Group Neusoft Group Neusoft Corporation or Neusoft Group Ltd. is the largest software development and IT Services company in China, founded in 1991. As of January 2009, Neusoft employed over 15,000 employees....	Shenyang Shenyang Shenyang , or Mukden , is a sub-provincial city and capital city of Liaoning Provinces of China in Northeast China.Along with its nearby cities, Shenyang is an important industrial center in China, and the transportation and commercial centre of China's northeastern region.... , China China China is a Culture of China, an ancient civilization, and, depending on perspective, a national or multinational entity extending over a large area in East Asia....	12,000+
NTT Data NTT Data NTT Data Corporation is a system integration company of Nippon Telegraph and Telephone Group. It was established in 1988 and has now become the largest of the IT Services companies headquartered in Japan....	Tokyo Tokyo , officially , is one of the 47 prefectures of Japan of Japan and located on the eastern side of the main island Honshu. The twenty-three special wards of Tokyo, each governed as a city, cover the area that was once the Tokyo City in the eastern part of the prefecture, and total over 8 million people.... , Japan Japan Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....	23,000
Patni Computer Systems Patni Computer Systems Patni Computer Systems Ltd., is a provider of Information Technology services and business solutions. The company employs over 15,000 people, and has 23 international offices across the Americas, Europe and Asia-Pacific,as well as offshore development centers in 8 cities in India....	Mumbai Mumbai Mumbai— formerly Bombay, is the capital of the Indian state of Maharashtra. The city proper has approximately 14 million people and, along with the neighbouring suburbs of Navi Mumbai and Thane, Mumbai forms the World's largest urban agglomerations according to the United Nations World Urbanization Prospects report with around 19... , India India India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....	13,000
Satyam Computer Services	Hyderabad, India India India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....	52,000+
Tata Consultancy Services Tata Consultancy Services Tata Consultancy Services Limited is an Indian software services and consulting company. It is India's largest provider of information technology and business process outsourcing services....	Mumbai Mumbai Mumbai— formerly Bombay, is the capital of the Indian state of Maharashtra. The city proper has approximately 14 million people and, along with the neighbouring suburbs of Navi Mumbai and Thane, Mumbai forms the World's largest urban agglomerations according to the United Nations World Urbanization Prospects report with around 19... , India India India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....	116,000
Tech Mahindra Tech Mahindra Tech Mahindra Ltd. formerly known as Mahindra British Telecom is a joint venture between Mahindra & Mahindra Limited and British Telecommunications plc , UK with M&M holding 44% and BT holding 39% of the equity....	Pune Pune Pune ,Pune is the administrative capital of Pune district and the 7th Metro city of India.Pune is known to have existed as a town since 937 AD.... , India India India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....	17,000+
Wipro Technologies Wipro Technologies Wipro Technologies is a corporation based in India. It was founded as a vegetable oil company, but since then has diversified into the information technology, Customer service, lighting, engineering and healthcare businesses....	Bangalore Bangalore Bangalore , officially Bengaluru , is the capital of the Indian States and territories of India of Karnataka. Located on the Deccan Plateau in the south-eastern part of Karnataka, Bangalore is India's List of most populous cities in India and List of most populous metropolitan areas in India.... , India India India, officially the Republic of India , is a country in South Asia. It is the List of countries and outlying territories by total area country by geographical area, the List of countries by population country, and the most populous liberal democracy in the world....	68,000

Europe

Name	Headquarters	Consultants
Altran Altran Altran Technologies, SA is a European consulting firm founded in 1982 in France. Altran, self dubbed the European leader in high technology and innovation consultancy, operates primarily in technology and innovation consultancy, accounting for nearly half of its turnover....	Paris Paris Paris is the Capital of France and the country's largest city. It is situated on the river Seine, in northern France, at the heart of the ?le-de-France Regions of France .... , France France France , officially the French Republic , is a country whose Metropolitan France is located in Western Europe and that also comprises various Overseas departments and territories of France....	17,057
Atos Origin Atos Origin Atos Origin, SA is an international information technology corporation which operates in 40 countries worldwide, with over 50,000 employees.The corporate headquarters are located in Paris, France and Zaventem, Belgium....	Paris Paris Paris is the Capital of France and the country's largest city. It is situated on the river Seine, in northern France, at the heart of the ?le-de-France Regions of France .... , France France France , officially the French Republic , is a country whose Metropolitan France is located in Western Europe and that also comprises various Overseas departments and territories of France....	50,000
Capgemini Capgemini Capgemini is a major France Corporation, one of the world's largest information technology, management consulting, outsourcing and professional services companies with a staff of over 91,000 operating in 36 countries....	Paris Paris Paris is the Capital of France and the country's largest city. It is situated on the river Seine, in northern France, at the heart of the ?le-de-France Regions of France .... , France France France , officially the French Republic , is a country whose Metropolitan France is located in Western Europe and that also comprises various Overseas departments and territories of France....	80,000
Getronics Getronics Getronics N.V. is a company, subsidiary of the Dutch IT & Telecommunications firm KPN since October 2007, focused on creating value for IT Workspace Management Services, Applications & Software Development Services....	Amsterdam Amsterdam Amsterdam is the Capital of the Netherlands and List of cities in the Netherlands with over 100,000 people of the Netherlands, located in the Provinces of the Netherlands of North Holland in the west of the country.... , Netherlands Netherlands The Netherlands is a country that is part of the Kingdom of the Netherlands. It is a parliamentary democratic constitutional monarchy. The Netherlands is located in North-West Europe, and bordered by the North Sea to the north and west, Belgium to the south, and Germany to the east....	28,000
Indra Indra (company) Indra Sistemas, S.A., is a Spain information technology and defense systems company. Indra is listed on the Bolsa de Madrid and is a constituent of the IBEX 35 index....	Madrid Madrid Madrid is the Capital and largest city of Spain. It is the Largest cities of the European Union by population within city limits in the European Union after Greater London and Berlin, and its Madrid metropolitan area is the Largest urban areas of the European Union in the European Union after Paris aire urbaine, Greater London Urban Area, a... , Spain Spain Spain or the Kingdom of Spain , is a country located in Southern Europe on the Iberian Peninsula.The Spanish constitution does not establish any official denomination of the country, even though Espa?a , Estado espa?ol and Naci?n espa?ola are used interchangeably....	20,000
Logica	London London London is the capital of both England and the United Kingdom, and the most populous municipality in the European Union. An important settlement for two millennia, History of London goes back to its founding by the Roman Empire.... , UK United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....	40,000+
Siemens IT Solutions and Services	Munich Munich Munich is the capital city of Bavaria, Germany. Munich is located on the River Isar north of the Northern Limestone Alps. Munich is the third largest city in Germany, after Berlin and Hamburg.... , Germany Germany Germany , officially the Federal Republic of Germany , is a country in Central Europe. It is bordered to the north by the North Sea, Denmark, and the Baltic Sea; to the east by Poland and the Czech Republic; to the south by Austria and Switzerland; and to the west by France, Luxembourg, Belgium, and the Netherlands....	40,000+
Steria Steria Steria is a European provider of IT-driven business services, focusing on key vertical market sectors: public services; finance; telecommunications; utilities and transport....	Paris Paris Paris is the Capital of France and the country's largest city. It is situated on the river Seine, in northern France, at the heart of the ?le-de-France Regions of France .... , France France France , officially the French Republic , is a country whose Metropolitan France is located in Western Europe and that also comprises various Overseas departments and territories of France....	18,000+
Tieto	Espoo Espoo Espoo is a List of cities and towns in Finland and Municipalities of Finland of Finland. With a population of approximately it is the second most populated city in Finland.... , Finland Finland Finland , officially the Republic of Finland , is a Nordic countries situated in the Fennoscandian region of northern Europe. It borders Sweden on the west, Russia on the east, and Norway on the north, while Estonia lies to its south across the Gulf of Finland....	15,000

North America

Name	Headquarters	Consultants
Accenture Accenture Accenture Limited is a global management consulting, technology services and outsourcing company. It is registered in Hamilton, Bermuda. It is said to be the largest consulting firm in the world....	Hamilton, Bermuda Hamilton, Bermuda Hamilton is the Capital of Bermuda. It is located on the north side of Hamilton Harbour, Bermuda, and is Bermuda's main port. Although there is a parish of the Hamilton Parish, Bermuda, the city of Hamilton is in the parish of Pembroke Parish, Bermuda....	178,000
Affiliated Computer Services Affiliated Computer Services ACS Affiliated Computer Services is a Fortune 500 company that provides information technology services as well as business process outsourcing solutions to businesses, government agencies, and non-profit organizations....	Dallas, TX Texas Texas is a U.S. state located in the South Central United States, nicknamed the Lone Star State. Texas is the second largest U.S. state in both area and population, spanning , and with a growing population of 24.3 million residents....	62,000
BearingPoint BearingPoint BearingPoint Inc. is one of the world?s largest providers of management and technology consulting services to Forbes Global 2000 companies and government organizations in more than 60 countries....	McLean McLean, Virginia McLean is a census-designated place in Fairfax County, Virginia in Northern Virginia Virginia. The community had a total population of 38,929 as of the United States 2000 census.... , VA Virginia The Commonwealth of Virginia is an United States U.S. state on the East Coast of the United States of the Southern United States. The state is known as the "Old Dominion" and sometimes as "Mother of Presidents", because it is the birthplace of Lists of United States Presidents by place of birth#By state....	17,500
Booz Allen Hamilton Booz Allen Hamilton Booz Allen Hamilton, or more commonly Booz Allen or BAH, is a Privately held company consulting firm headquartered in McLean, Virginia, with 80 other offices throughout the nation....	McLean McLean, Virginia McLean is a census-designated place in Fairfax County, Virginia in Northern Virginia Virginia. The community had a total population of 38,929 as of the United States 2000 census.... , VA Virginia The Commonwealth of Virginia is an United States U.S. state on the East Coast of the United States of the Southern United States. The state is known as the "Old Dominion" and sometimes as "Mother of Presidents", because it is the birthplace of Lists of United States Presidents by place of birth#By state....	19,000
CGI Group CGI Group CGI Group Inc. is an information technology management and business process services company. Founded in 1976 and headquartered in Montreal, Canada, CGI employs approximately 25,000 employees in over 100 offices in 16 countries....	Montreal Montreal Montreal, or Montr?al, is the largest city in the Provinces and territories of Canada of Quebec and the List of largest cities and second largest cities by country List of the 100 largest municipalities in Canada by population.... , Canada Canada Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean....	26,500
Cognizant Technology Solutions Cognizant Technology Solutions Cognizant Technology Solutions is an information technology services company with headquarters in Teaneck, New Jersey, New Jersey, United States and with significant operations in Chennai, India....	Teaneck Teaneck, New Jersey Teaneck is a Township in Bergen County, New Jersey, New Jersey, and is a suburb in the New York metropolitan area. As of the United States 2000 Census, the township population was 39,260.... , NJ New Jersey New Jersey is a state in the Mid-Atlantic States and Northeastern United States regions of the United States. It is bordered on the north by New York, on the east by the Hudson River and the Atlantic Ocean, on the southwest by Delaware, and on the west by Pennsylvania....	55,000
Computer Sciences Corporation Computer Sciences Corporation CSC is an information technology and business services company headquartered in Falls Church, Virginia, USA. CSC predominantly provides IT Employment agency services in the following areas: systems integration and professional services; enterprise application development and management; application software for the financial services ind...	Falls Church Falls Church, Virginia Falls Church is an independent city in Virginia, United States. The population is 11,200. This city is a part of the Washington Metropolitan Area.... , VA	91,000
Deloitte Touche Tohmatsu Deloitte Touche Tohmatsu Deloitte Touche Tohmatsu is one of the largest professional services firms in the world and one of the Big Four auditors, along with PricewaterhouseCoopers, Ernst & Young, and KPMG....	New York New York City The City of New York is the List of United States cities by population in the United States, while the New York metropolitan area ranks among the List of urban areas by population.... , NY New York The State of New York is a U.S. state in the Mid-Atlantic States and Northeastern United States regions of the United States and is the nation's List of U.S....	155,000
Electronic Data Systems Electronic Data Systems Electronic Data Systems, an HP Company, commonly EDS, is a global business and technology services company headquartered in Plano, Texas that defined the outsourcing business when it was established in 1962 by Ross Perot....	Plano Plano, Texas Plano is a city in Texas. Located mainly within Collin County, Texas, it is a wealthy northern suburb of Dallas, Texas. The population was 222,030 at the United States Census, 2000, making it the ninth largest city in Texas.... , TX Texas Texas is a U.S. state located in the South Central United States, nicknamed the Lone Star State. Texas is the second largest U.S. state in both area and population, spanning , and with a growing population of 24.3 million residents....	136,000
Ernst & Young Ernst & Young Ernst & Young is one of the largest professional services firms in the world and one of the Big Four auditors, along with PricewaterhouseCoopers, Deloitte Touche Tohmatsu and KPMG....	New York New York City The City of New York is the List of United States cities by population in the United States, while the New York metropolitan area ranks among the List of urban areas by population.... , NY New York The State of New York is a U.S. state in the Mid-Atlantic States and Northeastern United States regions of the United States and is the nation's List of U.S....	135,000
HP Technology Solutions HP Technology Solutions HP Technology Solutions Group is one of three business segments of Palo Alto, California based Hewlett-Packard Company Hewlett-Packard. It is based in Palo Alto, California, and has over 100,000 employees with a turnover of $37.7 billion United States dollar in 2007....	Palo Alto Palo Alto, California Palo Alto is a California charter city located in the northwest corner of Santa Clara County, California, in the San Francisco Bay Area of California, United States.... , CA California California is a U.S. state on the West Coast of the United States of the United States, along the Pacific Ocean. It is bordered by Oregon to the north, Nevada to the east, Arizona to the southeast, and to the south the Mexico state of Baja California....	105,000
IBM Global Business Services	Armonk Armonk, New York Armonk is a Political subdivisions of New York State#Census-designated place located in the Political subdivisions of New York State#Town of North Castle, New York in Westchester County, New York.... , NY New York The State of New York is a U.S. state in the Mid-Atlantic States and Northeastern United States regions of the United States and is the nation's List of U.S....	320,000
Keane Inc	Boston, MA Massachusetts The Commonwealth of Massachusetts is a U.S. state located in the New England region of the Northeastern United States United States. It borders Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north....	14,500
KPMG KPMG KPMG is one of the largest professional services firms in the world. KPMG employs over 136,500 people in a global network of professional services firms spanning over 140 countries....	New York New York City The City of New York is the List of United States cities by population in the United States, while the New York metropolitan area ranks among the List of urban areas by population.... , NY New York The State of New York is a U.S. state in the Mid-Atlantic States and Northeastern United States regions of the United States and is the nation's List of U.S....	136,500
Perot Systems Perot Systems Perot Systems Corporation is an information technology services provider based in Plano, Texas, Texas. Peter Altabef has served as president and chief executive officer since 2004....	Plano Plano, Texas Plano is a city in Texas. Located mainly within Collin County, Texas, it is a wealthy northern suburb of Dallas, Texas. The population was 222,030 at the United States Census, 2000, making it the ninth largest city in Texas.... , TX Texas Texas is a U.S. state located in the South Central United States, nicknamed the Lone Star State. Texas is the second largest U.S. state in both area and population, spanning , and with a growing population of 24.3 million residents....	21,000
Science Applications International Corporation Science Applications International Corporation Science Applications International Corporation is a FORTUNE 500 scientific, engineering and technology applications company in the United States with numerous federal, state, and private sector clients....	La Jolla, CA California California is a U.S. state on the West Coast of the United States of the United States, along the Pacific Ocean. It is bordered by Oregon to the north, Nevada to the east, Arizona to the southeast, and to the south the Mexico state of Baja California....	44,000
Titan Corporation	San Diego, CA California California is a U.S. state on the West Coast of the United States of the United States, along the Pacific Ocean. It is bordered by Oregon to the north, Nevada to the east, Arizona to the southeast, and to the south the Mexico state of Baja California....	12,000
Unisys Unisys Unisys Corporation , based in Blue Bell, Pennsylvania, Pennsylvania, United States, and incorporated in Delaware, is a global provider of information technology services and programs....	Blue Bell Blue Bell, Pennsylvania Blue Bell is a census-designated place in Whitpain Township, Pennsylvania in Montgomery County, Pennsylvania, in the United States. As of the 2000 census, its population was 6,395.... , PA Pennsylvania The Commonwealth of Pennsylvania , often colloquially referred to as PA by natives and Northeasterners, is a U.S. state located in the Northeastern United States and Mid-Atlantic States regions of the United States....	31,000

Defunct but notable

Arthur Andersen Business Consulting
Arthur Andersen

Arthur Andersen LLP, based in Chicago, was once one of the Big Four auditors among PricewaterhouseCoopers, Deloitte Touche Tohmatsu, Ernst & Young and KPMG, providing auditing, tax, and consulting services to large corporations....
MarchFirst

Information technology consulting

List of major IT consulting firms

Asia

Europe

North America

Defunct but notable

See also