What else does Mattermost use?

Cloudflare, Marketo, Amazon Web Services, Anthropic and Box, among 18 vendors we hold evidence for.

Which other companies use Microsoft?

1Stream, 2342.ai, 360DT, 3Shape and 5CA, among 1,457 companies with public evidence.

Companies / Mattermost / Microsoft

Does Mattermost use Microsoft?

Q: Does Mattermost use Microsoft?

Yes. We hold strong evidence for this. Evidence: Subprocessor list.

Yes

We hold strong evidence for this.

The company names it in its own subprocessor list, a statement that this vendor handles its customers' data.

How we know

Subprocessor listNamed as Microsoft Corporation, Inc.Processes data for the company9 Nov 2026Source

About Mattermost

Mattermost provides secure messaging, collaboration, workflow automation, and AI tools that run self-hosted, in private cloud, or air-gapped environments. It serves national security, critical infrastructure, and regulated enterprise teams.

Summarized from its homepage on 3 Nov 2026.

Cybersecurity Government and public sector

What else Mattermost uses

Mattermost has evidence for 18 vendors. The strongest:

Cloudflare Marketo Amazon Web Services Anthropic Box Google OpenAI Panther Salesforce

See the full Mattermost tech stack

Other companies using Microsoft

1Stream1stream.com

2342.ai

360DT360dt.de

3Shape3shape.com

5CA5ca.com

Abacumabacum.ai

ABC Sales AIabcsales.ai

Abionabion.com

All 1,457 companies using Microsoft

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