Slack has signed a multi-year agreement with Amazon, allowing the company to move its Slack Calls capability for voice and video calling to Amazon Chime, the shopping behemoth’s business communication service.
Slack, meanwhile, will be using Amazon Web Service more, as its cloud provider and “storage, compute, database, security, analytics, and machine learning” source to develop new collaboration features, according to an announcement from the companies.
Such a move links Slack more deeply with Amazon’s back end, specifically Amazon Web Services, which means that it is less likely the company will seek deeper integration with competing services such as Google Cloud. Slack has been running on AWS since 2014, with the company now paying Amazon at least $425 million over a five-year period that ends April 2025.
This is an increase from a previous payment of at least $250 million, which ends in July 2023, according to a US SEC (Securities and Exchange Commission) filing.
Amazon is the second-largest employer in the United States, with over 840,000 employees working for the company either full- or part-time. At the end of December 2018, it was reported that Amazon has over 20,000 people working in its warehousing and logistics departments in the UK, a massive increase from its under-3000 staff in 2010.