How frustrating must it be for a company that powers the technology behind Apple’s iPhone personal assistant Siri not to be able to talk about its involvement? If Nuance is indeed behind Siri, the company is doing well financially, riding on her coattails.

Nuance will be announcing its second quarter financial results on 10 May, the company has just issued a press release confirming that it expects Q2 12 non-GAAP revenues between $416 million and $418 million; GAAP revenues between $389 million and $391 million; non-GAAP net income between $0.42 and $0.43 per diluted share; and GAAP net income between $0.00 and $0.01 per diluted share.

The company’s initial guidance for the quarter, which ended on 31 March, was lower: Q2 12 of non-GAAP revenues between $395 and $415 million; GAAP revenues between $371 and $391 million; non-GAAP EPS between $0.36 and $0.40; and GAAP EPS between ($0.07) and ($0.03).

Nuance chief financial officer Tom Beaudoin credited the positive outlook thus: "A balanced performance across our markets enabled us to deliver 14 per cent year-over-year organic revenue growth.”

Seeking Alpha points to a press release from 2010 as proof that Nuance is powering Siri. The press release, issued before Apple bought the company behind Siri, was published in 2010. It states: "Siri has also partnered with Nuance Communications to power its robust speech recognition capabilities - the same technology behind the successful Dragon Dictation and Dragon Search and Apps for iPhone".