Four of the highest paid executives at Google parent Alphabet just gained access to a new pot of cash: up to $2 million in additional annual bonuses if they help the company achieve goals like using more carbon-free energy and recruiting diverse candidates.

Alphabet is among the seven large tech companies that, over the past six months, decided to start tying environmental, social and governance goals to executives’ pay. Among 76 information technology companies in the S&P 500 index, 11 of them, or 14.5%, now tie ESG-related goals to executive compensation. That figure is up from 5.4% of tech companies in the first half of last year, according to a data analysis by ISS Corporate Solutions, a unit of shareholder advisory company ISS, for The Information.