WK

Walter Kortschak

Partner at Kortschak Investments

United States

Overview 

Walter Kortschak is a seasoned venture capitalist currently serving as a Partner at Firestreak Ventures and a Senior Advisor at Summit Partners. With a background in private equity and entrepreneurship, he has made strategic investments in notable companies like Stability AI, Crowded, and Hugging Face, focusing on sectors such as local services, education, and e-commerce. Kortschak's impressive career highlights include holding leadership roles at SignalFire, serving on the board of various successful startups like Vital Interaction and Playco, and making impactful investments in emerging markets and innovative technologies, showcasing his expertise in business strategy and venture capital.

Work Experience 

FV

Firestreak Ventures

  • Founder

    2022 - Current

    https://www.firestreak.com

Firestreak Ventures is an investment firm that invests in cybersecurity, machine learning, infrastructure, and AI companies.

firestreak.com
B

BLOCKv

  • Board Member

    2025

    https://www.blockv.io

KI

Kortschak Investments

  • Founder

    2010

    http://www.kortschak.com

SP

Summit Partners

  • Senior Advisor

    2023

  • Former Managing Partner

    2017 - 2023

  • Senior Advisor & Board Member

    2010 - 2017

  • Managing Partner

    1998 - 2010

  • General Partner

    1989 - 1998

    http://www.summitpartners.com

Summit Partners is an investment firm that is currently investing in to growth equity, fixed income, and public equity opportunities.

summitpartners.com
S

SignalFire

  • Chairman Emeritus/Founding Investor

    2023

  • Executive Chairman & CIO

    2017 - 2023

  • Founding Investor & Advisor

    2013 - 2017

    http://www.signalfire.com

SignalFire is a venture capital firm that invests in seed stage companies and breakout companies.

signalfire.com
EC

End Cue

  • Co-Founder

    2013

    http://www.endcue.com

VI

Vital Interaction

  • Board Member & Seed Investor

    2023

    https://www.vitalinteraction.com

Vital Interaction is a software provider specialized in automating complex communication workflows.

Raised $20,000,000.00 from Michael Dearing, Next Coast Ventures, Walter Kortschak, Freestyle Capital, Kortschak Investments L.P. and Harrison Metal.

vitalinteraction.com
P

Playco

  • Board Member & Investor

    2019

    https://www.play.co

R

Rezi

  • Board Member & Seed Investor

    2024

    https://www.rezi.ai

SP

Sightline Payments

  • Board Member & Founding Investor

    2011

    https://sightlinepayments.com

Sightline Payments designs and develops a digital payment solution for the sports betting and casino gaming market.

Raised $347,301,110.00 from JP Morgan.

sightlinepayments.com

Education 

Investments 

Stability AI

Series Unknown

Total funding: $210M

Crowded

Pre Seed

Total funding: $6M

Rezi

Seed

Total funding amount not yet available

Deltia

Seed

Total funding: $7M

Articles About Walter

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