Investor profile
Walter Kortschak
Angel, Operator angel & Senior Advisor at Summit Partners, Board Member & Investor at Playco, Founder at Kortschak Investments, Founder at Firestreak Ventures, Co-Founder at End Cue, Chairman Emeritus/Founding Investor at SignalFire
An angel investor and operator angel based in United States, Walter Kortschak has 15 known investments, including Robinhood, Inversion, Command Code, Sauna by Wordware, SWOOP, Overmind, Rezi, Frame.io, Deltia, Playco, Soma Energy and Sightline Payments.
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Investment focus
Contacts
Walter Kortschak portfolio companies (15)
- Robinhood
- Inversion
- Command Code
- Sauna by Wordware
- SWOOP
- Overmind
- Rezi
- Frame.io
- Deltia
- Playco
- Soma Energy
- Sightline Payments
- Giggles
- Finni Health
- Vital Interaction
Affiliated funds' portfolios
Senior Advisor at Summit Partners, whose known portfolio counts 22 companies
- Grockit
- Instrumentl
- Fundraise Up
- Sanctuary
- Stay22
- BookingLive
- Hyperlight
- Manychat
- Quorso
- Authenticate Information Systems
- Cenosco
- Cityport
- and 10 more
Board Member & Investor at Playco, whose known portfolio counts 1 company
- Bombay Play
Founder at Kortschak Investments, whose known portfolio counts 13 companies
- SpaceX
- Keeper
- Evernote
- Alix
- Palantir
- Vital Interaction
- Cannae Holdings
- Eeva
- Finnrick Analytics
- LifeRaft
- Noar Ventures
- Phase Labs
- and 1 more
Founder at Firestreak Ventures, whose known portfolio counts 13 companies
- Rork
- Qodo
- BotCity
- Unikraft
- Skyflow
- Aaru
- Pay-i
- InkVell
- Innerworks
- Sprkl
- Athena Security Group
- DensityAI
- and 1 more
Co-Founder at End Cue, whose known portfolio counts 3 companies
- 8i
- Mindshow
- Nucleal
Chairman Emeritus/Founding Investor at SignalFire, whose known portfolio counts 10 companies
- Moxie
- Qualified Health
- Patlytics
- Grow Therapy
- Solace
- Solid
- Mega
- Mercura
- Moody Pines
- Prudentia Sciences
Investor Profile
Founders in the listed sectors FinTech and SaaS, and focus areas Analytics, CRM, Cloud Infrastructure and Cybersecurity will recognize the pattern in this portfolio.
Stage-wise, the known deals cluster around Seed and Series B rounds.
The portfolio and focus above give founders context on whether Walter Kortschak matches their raise.
Colleagues
Showing 20 of 112
Peter Bell
Board Member
Longboat Key, United States
Justin Waldron
Founder, President
United States
Ben Davenport
Advisor
Palo Alto, United States
Cory Levy
Advisor
United States
Chris Farmer
Founder & CEO
San Francisco, United States
Josh Constine
Venture Partner for consumer
San Francisco, United States
Chris Scoggins
Partner
Denver, United States
Michael Maxwell Carter
Founder, Angel Investor, Board Member
San Francisco, United States
Alex Yaroslavsky
Member
New York, United States
Ross Mason
Venture Partner
Geneva, Switzerland
Monica Zent
Advisor - Specialist Network
Sunnyvale, United States
Kit Hunter Gordon
Founder & Managing Director
London, United Kingdom
Ryan McDonald
Healthcare Investor
San Francisco, United States
John Carroll
Managing Director
Boston, United States
Matthew Hamilton
Managing Director
Boston, United States
Hanyin Cheng
Principal
Cambridge, United States
Christopher Dean
Managing Director
Boston, United States
Chris Bon
Partner
London, United Kingdom
Darren Black
Managing Director
Boston, United States
Mark Hexamer
Principal, Talent & Recruiting
San Francisco, United States
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Frequently asked questions
Who is Walter Kortschak?
Walter Kortschak is an angel investor and operator angel based in United States with 15 known investments on file, among them Robinhood, Inversion and Command Code. The sections above list the sectors, stages and firms attached to that record.
What does Walter Kortschak invest in?
Listed sectors include FinTech and SaaS; listed focus areas include Analytics, CRM, Cloud Infrastructure and Cybersecurity. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Walter Kortschak invest at?
The known deals of Walter Kortschak include Seed and Series B rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Walter Kortschak listed at?
Walter Kortschak is listed as Senior Advisor at Summit Partners. 112 other people in the database share a firm with Walter Kortschak.
How do I contact Walter Kortschak?
An email address, a phone number and a LinkedIn page are on file for Walter Kortschak. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal