McKesson
Corporation - (en)
McKesson Corporation (NYSE: MCK) is a large United States-based
corporation specialising in the distribution of health care systems,
medical supplies and pharmaceutical products. It is the 16th largest
company in the United States and the single largest health care
company in the world.

Founded in New York City as Olcott & McKesson by Charles Olcott
and John McKesson in 1833, the business began as an importer and
wholesaler of botanical drugs. A third partner, Daniel Robbins joined
the enterprise as it grew, and it was renamed McKesson & Robbins
following Olcott's death in 1853.
From the middle of the 20th century, McKesson has derived a
continually growing proportion of its income from medical technology
rather than pharmaceuticals. This culminated in its purchase of
medical information systems firm HBO & Company (HBOC) in 1999; the
combined firm was briefly known as McKessonHBOC. Accounting
irregularities at HBOC halved the share price and resulted in the
dismissal and prosecution of many former HBOC executives, and the firm
reassumed its original name in 2001.
In addition to its offices throughout North America, McKesson also has
international offices in Australia and Europe (Ireland, France,
Netherlands and the United Kingdom). It employs 24,600 people globally.
Today, McKesson is one of the oldest continually operating business in
the United States.

McKesson in the United Kingdom
In the United Kingdom, McKesson (operating as McKesson Information
Solutions UK Ltd) is a provider of information technology services to
the health care industry. In addition to numerous clinical software
systems and finance and procurement services, McKesson also is
responsible for developing the Electronic Staff Record system for
Britain's National Health Service which, upon completion in 2007, will
provide an integrated pay and human resources system for NHS's 1.2
million staff, making it the world’s largest single HR/payroll IT
system.
McKesson's United Kingdom base is in Warwick with data centers in
Newcastle upon Tyne and Romford and offices in Sheffield and Vauxhall,
South London. Across the United Kingdom, it employs over 500 people.
Facilities
In addition to its global headquarters in San Francisco, California,
McKesson maintains additional facilities around the world, including:

Westlake, Texas
Rancho Cordova, California
Broomfield, Colorado, formerly Access Health, formerly HBO &
Company
Lake Mary, Florida, formerly HBO & Company
Alpharetta, Georgia, formerly HBO & Company's headquarters
Wheeling, Illinois, formerly Enterprise Systems, Incorporated (ESi),
formerly HBO & Company
Dubuque, Iowa, formerly CyCare, formerly HBO & Company
Overland Park, Kansas, formerly Enterprise Systems, Incorporated (ESi),
formerly HBO & Company
Minneapolis, Minnesota, formerly HBO & Company
Springfield, Missouri, formerly HBO & Company
Charlotte, North Carolina, formerly HBO & Company
Carrollton, Texas
Richmond, Virginia, formerly General Medical
Lewisville, Texas, McKesson Specialty Distribution
Phoenix, Arizona, McKesson Health Solutions