CANONSBURG, PA – Simulation software company Ansys reported first-quarter revenue of $158 million, up 16% year-over-year.

Net income was $42.2 million, up 30% compared to the first quarter of 2010.

The firm raised its guidance for the full year to revenue between $645 million to $665 million.

For the remainder of 2011, the company says an important priority is the support of its Japanese employees and customers during the rebuilding process.