Other sectors have been, and there's no reason tech would be immune to this. Also, it's only logical that attempts to create an EU tech sector, therefore threatening the US dominance, would be met with attempts to stiffle it similar to the ones below.
>In 1999, Enercon, a German company and leading manufacturer of wind energy equipment, developed a breakthrough generator for wind turbines. After applying for a US patent, it had learned that Kenetech, an American rival, had submitted an almost identical patent application shortly before. By the statement of a former NSA employee, it was later discovered that the NSA had secretly intercepted and monitored Enercon's data communications and conference calls and passed information regarding the new generator to Kenetech.
>In the early 1990s, the US National Security Agency intercepted the communications between the European aerospace company Airbus and the Saudi Arabian national airline. In 1994, Airbus lost a $6 billion contract with Saudi Arabia after the NSA, acting as a whistleblower, reported that Airbus officials had been bribing Saudi officials to secure the contract.[65] As a result, the American aerospace company McDonnell Douglas (now part of Boeing) won the multibillion-dollar contract instead of Airbus.
>The American defense contractor Raytheon won a US$1.3 billion contract with the Government of Brazil to monitor the Amazon rainforest after the US Central Intelligence Agency (CIA), acting as a whistleblower, reported that Raytheon's French competitor Thomson-Alcatel had been paying bribes to get the contract.
>In order to boost America's position in trade negotiations with the then Japanese Trade Minister Ryutaro Hashimoto, in 1995 the CIA eavesdropped on the conversations between Japanese bureaucrats and executives of car manufacturers Toyota and Nissan.
Source: https://en.wikipedia.org/wiki/ECHELON
You can argue that the bribing cases make the US government the "good guy", but I can safely say that the NSA/CIA would not leverage it's espionage capabilites to subvert a US companies deals/operations.
And remember, these are only the cases that we know about.