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Songyee Yoon

Founder & Managing Partner atPrincipal Venture PartnersCalifornia
LinkedIn Principal Venture Partners websiteFirm profile

Songyee Yoon is the founder and managing partner of Principal Venture Partners. She previously held executive roles at NCSoft Corporation and worked at SK Telecom and McKinsey & Company.

What Songyee can write

Writes checks ofNot reported
Comes in atPre-seed, Seed, Series ALead preference not reported
Best routeA short note on LinkedInA warm intro from a founder they backed works better.

Career

  1. McKinsey & Company · Engagement Manager
  2. SK Telecom · Vice President, Communications Intelligence
  3. NCSoft Corporation · Chief Executive Officer of NCWest
  4. NCSoft Corporation · Chief Strategy Officer
  5. NCSoft Corporation · President
  6. Principal Venture Partners · Founder and Managing Partner
    Now
  7. HP Inc. · Director
    2025-null

Companies founded

Principal Venture Partners

Investments named in public bios

Together.aiCartesiaSesame

Focus

AItechnologyinternational businesspolicyethics

Education

Korea Advanced Institute of Science and Technology, BS in Electrical EngineeringMassachusetts Institute of Technology (MIT), PhD in Computational NeuroscienceSanta Clara University, JD

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One email when Songyee's firm raises a fund, adds a partner or shows new activity.

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Questions

Who is Songyee Yoon?

Songyee Yoon is the founder and managing partner of Principal Venture Partners. She previously held executive roles at NCSoft Corporation and worked at SK Telecom and McKinsey & Company.

How much does Songyee Yoon invest?

Principal Venture Partners has not reported a check size. It invests at pre-seed, seed, series a.

How do I pitch Songyee Yoon?

A warm intro from a founder Principal Venture Partners backed works best. A short LinkedIn note with one line on traction is the next best route.

What did Songyee Yoon do before Principal Venture Partners?

Engagement Manager at McKinsey & Company; Vice President, Communications Intelligence at SK Telecom; Chief Executive Officer of NCWest at NCSoft Corporation; Chief Strategy Officer at NCSoft Corporation; President at NCSoft Corporation; Director at HP Inc..

Last updated 2026-10-15. Is this you? Ask for a correction.