Group 4 may refer to:
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Group 4 element
Group 4 is the second group of transition metals in the periodic table. It contains the four elements titanium (Ti), zirconium (Zr), hafnium (Hf), and rutherfordium (Rf). The group is also called the titanium group or titanium family after its lig ...
, chemical element classification
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Group 4 (racing), classification for cars in auto racing and rallying
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G4S, formerly Group 4 Securicor, a prominent British security company
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IB Group 4 subjects
The Group 4: Experimental sciences subjects of the International Baccalaureate Diploma Programme comprise the main scientific emphasis of this internationally recognized high school programme. They consist of seven courses, five of which are offere ...
, subject group for the experimental sciences in the International Baccalaureate program
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Group 4 image format, Group 3 & Group 4 are digital technical standards for image compressing and sending in faxes, and in the Tagged Image File Format (TIFF)
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Group of Four
The G4 nations, comprising Brazil, Germany, India, and Japan, are four countries which support each other's bids for permanent seats on the United Nations Security Council. Unlike the G7, where the common denominator is the economy and long- ...
, the Group of Four (also known as G4) is a coalition of Brazil, Germany, India and Japan, who seek to reform membership in the United Nations Security Council
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Group 4 (company)
Group 4 was a security business operating primarily in the United Kingdom and latterly worldwide.
History
The company was established by Jörgen Philip-Sörensen, as a division of Securitas AB in 1968. The name derives from the fact that it brou ...
, a defunct British security company
*"Group Four", a song from Massive Attack's album,
''Mezzanine''
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