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Mio (YC W16) — Mio powers seamless communication between workplace chat apps

Mio powers seamless communication between Slack, Microsoft Teams & Webex Teams. The Austin, Texas-based company was founded by Tom Hadfield and James Cundle in November 2015.

Mio is a Y Combinator company in the Winter 2016 batch. Its directory entry describes it as: Mio powers seamless communication between workplace chat apps. The founders listed are Tom Hadfield (Founder/CEO), James Cundle (Founder/CTO) (Y Combinator directory entry, November 11, 2015).

6 more companies from YC Winter 2016 ↓

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Mio

New accelerator entry · 2015-11-11 · the record

Winter 2016
batch
12
people
Growth
stage
United States of America
region
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What the record says

BatchWinter 2016
Announced2015-11-11
StageGrowth
StatusActive
Team size12
IndustryB2B
Sub-industryB2B -> Engineering, Product and Design
SectorsSaaS, Messaging, Team Collaboration
RegionsUnited States of America, America / Canada, Remote, Partly Remote
BasedAustin, TX, USA
HiringNo
Sitehttp://m.io
Previously known asPrompt, Message.io

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Also in YC Winter 2016

Same batch, B2B first.

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In their words

Mio powers seamless communication between Slack, Microsoft Teams & Webex Teams. The Austin, Texas-based company was founded by Tom Hadfield and James Cundle in November 2015. M.io has raised $12m from investors including Goldcrest Capital, Eniac Ventures, Two Sigma Ventures, Khosla Ventures, Y Combinator and Capital Factory. Ready to sync your teams? Learn more and get started at https://m.io/

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Mio: Accepted into Y Combinator Winter 2016
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Permanent URL: https://mentionfox.com/funding/yc-mio
Last updated 2026-10-20
Primary record: Y Combinator directory entry
Mio (YC W16) — Mio powers seamless communication between workplace chat apps. MentionFox, 2026-10-20. https://mentionfox.com/funding/yc-mio