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Slack

Slack is a workplace messaging platform that grew out of a failed game studio and became one of the fastest-adopted business tools of the 2010s. It opened a Toronto sales team in its scaling years, went public by direct listing in 2019, and was bought by Salesforce for US$27.7 billion in 2021.

Acquired — Acquired by Salesforce on 21 July 2021 for US$27.7 billion — Salesforce's largest acquisition at the time. Slack continues to operate under its own brand as a Salesforce product.

Enterprise softwareSan FranciscoFounded 2013slack.com
US$27.7Bprice Salesforce paid, deal closed 21 July 2021CIO Dive

The people

Nikki CurtisVP, Global Revenue Enablement · 1 TechTO talk
SB
Stewart ButterfieldCo-founder & CEOprofile coming

What they build

Slack messaging and channels
Slack Connect
Workflow and app platform

Open roles via the TechTO Job Board

Working at Slack

Browse open roles across the community on the TechTO Job Board — Canada’s most connected tech network. Slack’s roles show up here whenever they post.

Open roles on the TechTO Job Board ↗Or their own careers page: slack.com/careers ↗

Jobs live on jobs.techto.org — the only structured source. We link to it rather than scraping career sites, so the board is always the source of truth.

On the TechTO stage

Every talk is searchable — ask the archive about Slack

About

Slack built its Toronto presence during its hyper-growth period, and two TechTO appearances come from that window. In January 2018 a SalesTO panel opened with the question of why Slack chose Toronto for a sales team, with the company's sales leadership on stage crediting the depth of the local sales community. That August, Nikki Curtis — then leading learning and enablement at Slack — gave a talk on creating a culture of learning inside a fast-scaling organisation. Slack listed directly on the New York Stock Exchange in June 2019 and was acquired by Salesforce on 21 July 2021 for US$27.7 billion, the largest acquisition in Salesforce's history at the time. It continues to operate as a Salesforce product.

Backers

Venture-backed through the 2010s, then publicly traded from its June 2019 direct listing until the Salesforce acquisition closed in 2021. It is now wholly owned by Salesforce.

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Quick answers

Why did Slack open a sales team in Toronto?

That was the opening question of TechTO's January 2018 SalesTO panel. Slack's answer, on stage, was the depth of Toronto's sales talent — the leader on the panel described spending a day meeting the local sales community and being struck by it.

Who owns Slack?

Salesforce, which completed a US$27.7-billion acquisition on 21 July 2021. Slack still operates under its own brand.

When did Slack go public?

June 2019, by direct listing on the New York Stock Exchange, two years before the Salesforce deal closed.

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Maintained by TechTO · facts sourced and dated · last reviewed Aug 9, 2026