Ambitious M&As have played a big part in shaping Big Tech as it stands today. However, increasing regulatory scrutiny soon could play a hand in inhibiting the industry's growth. To be sure, the last few months have seen increasing attention from global antitrust regulators looking to assert themselves more in multinational M&As.

In April, India imposed stricter regulations on corporations seeking to acquire companies in the country by implementing its own deal value threshold, or DVT, a move away from examining M&As based simply on asset size and turnover. India's move follows in the footsteps of Germany, Austria and South Korea. Vietnam and Australia may soon also move to examine deals based on DVT.