iPhone5The percentage of Americans who own smartphones rose 4% in 2Q 2013, with Apple the leading original equipment manufacturer (OEM) and Google the leading smartphone platform provider, according to comScore’s latest quarterly MobiLens market research report.

Nearly 142 million Americans owned smartphones as of end June, a mobile market penetration of 59%. Apple captured an OEM U.S. market share of 39.9%, a 0.9% quarterly rise, while 52% of US smartphone owners owned devices running Google Android, unchanged from March, according to a comScore press release.

Samsung’s U.S. smartphone market share rose 2% in 2Q as it released its Galaxy S4 model, taking second place among OEMs with a 23.7% share of the market. HTC captured 8.5% of the U.S. market to rank third as of end June. Motorola took the fourth spot with a market share of 7.2%, down 1.3%, and LG ranked fifth at 6.8%, down 0.2%.

Apple’s iOS platform, with a 39.9% market share, up 0.9%, continued to run second to Google Android’s 52.2%. BlackBerry ran third, though it continued to lose market share, down 0.8% to 4.4% for 2Q. Microsoft gained 0.1 percentage point to account for 3.1% of the U.S. smartphone platform market, with Symbian ranking fifth at 0.3%, down 0.2%.