With Apple at the top and Google, Microsoft and IBM not too far behind, tech companies represented one-tenth of global companies in terms of market capitalization, according to a new summary by consultancy PricewaterhouseCoopers.

In an index of big-name companies spanning March 2008 through March 2013 – which included the “Great Recession” and trillions of dollars in revenue swings – PwC put tech companies as a group at the top in terms of most valuable sectors (up 35 percent, to $1.82 trillion) and most improved. In its overall summary, the tech market has been “driven by product innovation and consumerization.”

At the top of global companies as a whole, Apple registered $416 billion as of March 2013, a gain of $290 billion and 40 spots from PwC’s 2008 rankings and besting oil titan Exxon.

Internet search leader Google ranked third as of March 2013, with market capitalization of $263 billion (up $125 billion from five years ago) and leapfrogging 33 spots from the previous index in 2008. Microsoft slipped a spot from 2008, down to number eight, and had a reduction in market capitalization by approximately $24 billion to $240 billion as of March 2013, according to PwC. IBM gained 18 spots to reach ninth globally in 2013, bringing along $238 billion, an increase of $79 billion from 2008. Apple, Google and IBM were listed by PwC among its five biggest “risers” in terms of market capitalization. Troubled phone vendor Nokia, which in 2008 was ranked higher than Apple, didn’t register in the latest rankings.

Outside of the top 10, but still registering large gains, were Oracle (with $152 billion in market capitalization and reaching no. 30, up 32 spots) and Qualcomm (with $115 billion in market capitalization and reaching no. 44, up 56 spots). Aside from Microsoft, the two tech companies that slipped from the ranking in 2008 were Cisco and Intel, according to PwC. Cisco sunk 19 spots from 2008 to 51st this year, with $111 billion in 2013 or $33 billion less than in the previous ranking. Intel dropped nine spots to rank 53rd in 2013, with $108 billion or $15 billion less in market capitalization.

The two overseas tech providers on the list were also the two lowest ranked, though both showing considerable gains in rank and capitalization from five years ago. German-based SAP was no. 62 with $99 billion this year, up 50 spots and $37 billion from 2008. Taiwan Semiconductor Manufacturing Company, or TMSC, is no. 69 with $87 billion, up from its 2008 ranking of 138th and $60 billion in market capitalization.

Outside of the top 100 was Hewlett-Packard, with a $66 billion drop in market capitalization from 2008 to 2013, and Dell, which was not listed in among survey documents.

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