Over the last decade, technology companies have been easing past traditional oil and gas conglomerates to become the wealthiest industry in the world. And yet, despite that vast wealth, there is still a massive tech talent gap. And now there’s a growing trend of tech workers coming together to call for greater unionization in this sector. This is moving beyond petitions and signed letters from staff, to increased walkouts, employee resource groups, and even formal trade unions. On January 4, the Alphabet Workers Union (AWU) launched with 230 members, instantly making it the biggest tech union. A few weeks later, the membership of this American and Canadian union, which includes permanent, contracted and vendor company employees of Google, its subsidiaries, and other Alphabet Inc. brands, has quadrupled. Earlier this week, international Googlers across 13 countries formed a coalition of unions called Alpha Global.