Companies › Media & Telecom

Bandwidth Inc BAND

Media & TelecomMarket cap $2B2 connections

Bandwidth provides communications APIs (voice, messaging, 911 services) to enterprise software companies. When Zoom, RingCentral, or Microsoft Teams needs to make real phone calls, they use carriers like Bandwidth for the underlying PSTN connectivity. It's the wholesale telecom infrastructure beneath enterprise communications.

Explore Bandwidth Inc on the interactive map Relationship timeline Find a path to another company

Customers 2

Companies Bandwidth Inc sells to

  • MicrosoftTechnology · $2.8TMicrosoft Teams Direct Routing via Bandwidth
  • ZoomTechnology · $20BZoom uses Bandwidth for PSTN calling infrastructure

Other Media & Telecom companies

Embed this on your site

Show Bandwidth Inc's network in an article or report - it updates as our data does.

Preview

Relationships are compiled by VexMap from company filings, announcements and reporting, and last reviewed September 2026. Spotted something wrong? Tell us. Not investment advice.