According to Slack's latest financial reports the company's current revenue (TTM) is NZ$1.57 B. In 2020 the company made a revenue of NZ$1.34 B an increase over the revenue in the year 2019 that were of NZ$0.92 B.The revenue is the total amount of income that a company generates by the sale of goods or services. Unlike with the earnings no expenses are subtracted.