IBM picks Slack over Microsoft Teams for its 350000 employees

Darnell Taylor
February 14, 2020

This meant that IBM wasn't a brand new client, which the headline 350,000 worker figure wouldn't manifest itself because many publication seats of Slack marketed.

At the time, that was 8 million more daily active users than Slack, which had reported in October that 12 million people were on the platform every day.

IBM has been Slack's biggest customer for many years and has enlarged its use of Slack during that moment.

Talking to Business Insider, Slack CEO Stewart Butterfield celebrated his company's victory in getting the IBM deal and took pride in their product for being able to serve one of the biggest companies in the world.

IBM has apparently actually been using Slack since 2014, but it is now officially adopting Slack as the main communication tool internally as part of a larger effort to modernize the company itself. The spike in Slack's share price came as a result of Business Insider claiming, falsely as it turns out, that the company had newly signed IBM as a customer.

Gift your Valentine Galaxy S20 for less than Rs 70K in India
If you pre-order before the March 5 cut-off, you'll also receive a set of Galaxy Buds+ with any order of an S20 phone. The Galaxy S20 series comes with a 25W fast charger (S20 Ultra supports 45W superfast charging).


Slack did not explicitly confirm or deny that it had reached a new deal but said in a regulatory filing https://www.sec.gov/Archives/edgar/data/1764925/000176492520000131/a8-kxitem701.htm that IBM had been and continued to be its largest customer.

There are paid and free options available for Slack. According to the report, IBM preferred Slack for 350,000 company employees after their trials. It is an important development that this number has doubled.

Yes, but: The thing is, IBM was already Slack's largest customer and has been for a couple of years.

The situation certainly helps Slack in its push against Microsoft Teams. The messaging platform's stock fell as much as 11% in November after Microsoft announced that its rival messaging service, Teams, has 20 million daily active users. Whatever the outcome, it is certain that IBM's decision gave Slack great power in the Slack-Microsoft struggle. However, the news of IBM's adoption of Slack has had the opposite effect, with the company's stock price surging by 21% today.

Other reports by

Discuss This Article

FOLLOW OUR NEWSPAPER