SPB Software, a division of Yandex, is a Russian IT company which operates the largest search engine in Russia.

In November 2011, Bloomberg Businessweek reported that Yandex acquired SPB Software after its own initial public offering[1] debuted on the NASDAQ as the fourth largest IPO of 2011.

The company released its first mobile application in 2001 and went on to win the Pocket PC Developer Of The Year Award 2003 by Handango.

[citation needed] On November 28, 2011, Bloomberg Businessweek reported that Yandex NV, operator of Russia’s most popular Internet search engine, acquired SPB Software "to expand mobile products and the use of its search capabilities on mobile devices.

"[1] The CEO of SPB Software, Sebastian-Justus Schmidt, was appointed as EVP Mobile and General Manager by Yandex.