John Han: Email & Phone Number

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CEO & Co-founder at Stealth Startup|Los Angeles, California, United States

Position:

CEO & Co-founder at Stealth Startup

Location:

Los Angeles, California, United States

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Last updated: 2025-08-08

Updated: 2025-08-08

Found email addresses for John Han:

Business emails:

**@harmonic.ai

Personal emails:

j***@aol.com,

j***@yahoo.com,

h***@hotmail.com,

h***@news.microsoft.com

Found phone for John Han:

+1-520-***-**73

A different John Han?

Work Experience 17 years

CEO & Co-founder at Stealth Startup

Jan 2023 - Current

Corporate Vice President at Microsoft

Jan 2020 - Jan 2023

General Manager, Intelligent Communications, Microsoft Teams and Skype for Business at Microsoft

Jan 2018 - Jan 2020

Partner Director of Product Management, Microsoft Teams and Skype for Business at Microsoft

Jan 2016 - Jan 2020

Group Program Manager, Skype & Lync at Microsoft

Jan 2013 - Jan 2016

Group Program Manager at Microsoft

Jan 2012 - Jan 2013

Lead Program Manager, Windows Phone Division at Microsoft

Jan 2009 - Jan 2012

John Han started working in 2009, then the employee has changed 1 company and 6 jobs. On average, John Han works for one company for 2 years 9 months.

Education

MBA at Stanford University Graduate School of Business

Master of Computer Science at University of Washington

Frequently Asked Questions

What is John Han's email address?

SignalHire found verified email addresses for John Han, both business and personal. Their business email is **@harmonic.ai, and personal emails include j***@aol.com, j***@yahoo.com, and h***@hotmail.com.

What is John Han's phone number?

SignalHire found a verified phone number for John Han: +1-520-***-**73.

How do I contact John Han at Stealth Startup?

You can reach John Han through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is John Han's professional background?

John Han has 17 years of professional experience. They have held roles including Corporate Vice President, General Manager, Intelligent Communications, Microsoft Teams and Skype for Business, and Partner Director of Product Management, Microsoft Teams and Skype for Business at companies such as Microsoft, Microsoft, and Microsoft. Their education includes MBA from Stanford University Graduate School of Business, and Master of Computer Science from University of Washington.

Is John Han's contact information up to date?

Yes. John Han's SignalHire profile was last updated on 8 August 2025, reflecting their current position as CEO & Co-founder at Stealth Startup in San Francisco, California, United States.

John Han Namesakes

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Company

Position

John Han

LOCALE Restaurants

Bartender

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John Han

Pfizer

Vice President, Digital & Clinical Innovation

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John Han

Contra Costa County District Attorney

Deputy District Attorney

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