There is a lot of bad blood between Oracle and Google and Ken Glueck, an Oracle executive claimed his outfit was an expert in Google’s advertising business.

He said he has received information requests from the Texas attorney general’s office and the House of Representatives Judiciary Committee.

The House Judiciary Committee has sought information from dozens of companies likely to have suffered harm from tech giants, according to a source close the House probe.

The committee will decide whether to issue subpoenas depending on how many companies answer voluntarily. Some firms feel they are less likely to be retaliated against by the giants if they are compelled to share information, according to the source.

Oracle has met with the Justice Department, Glueck said.

For those who came in late, Oracle has alleged that Google infringed on Oracle’s Java copyright to make the Android operating system. The Supreme Court is considering whether to take up Google’s appeal of a lower court ruling reviving the lawsuit. Oracle has sought about $9 billion in damages.

Technology companies, once lauded as a source of innovation that spurred efficiency and economic growth, face a backlash in the United States and the world over concerns among competitors, lawmakers and consumer groups that the firms have too much power and harm users and business rivals.