Investor profile
Louis Mayer
Family Office, Private equity & Managing Director at Portage Partners, Managing Director at 10 East
Louis Mayer is a Managing Director at Portage Partners, whose known portfolio counts 7 companies.
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Investment focus
- Sector
- AIFinTechReal EstateSaaS
- Focus
- Cloud InfrastructureCybersecurityDataData AnalyticsEnterprise SaaSMachine LearningMembership-basedPrivacySecurityTelecommunicationsThreat IntelligenceWealth Management
Contacts
Affiliated funds' portfolios
Managing Director at Portage Partners, whose known portfolio counts 7 companies
- Allure Security Technology
- SecurityScorecard
- Virtru
- Morphisec
- Flashpoint
- Canoe
- CyActive
Managing Director at 10 East, whose known portfolio counts 1 company
- Identity Digital
Investor Profile
Louis Mayer is listed against sectors AI, FinTech, Real Estate and SaaS, and focus areas Cloud Infrastructure, Cybersecurity, Data and Data Analytics in the database.
Stage-wise, the deals at Portage Partners cluster around Growth, Late-Stage and Series B rounds.
The firm portfolio and the focus above give founders context on whether Louis Mayer matches their raise.
Colleagues
Frequently asked questions
Who is Louis Mayer?
Louis Mayer is a family office investor and private equity investor based in New York, United States, listed as Managing Director at Portage Partners. The known portfolio of that firm counts 7 companies. That portfolio belongs to the firm, not to Louis Mayer personally.
What does Louis Mayer invest in?
Listed sectors include AI, FinTech, Real Estate and SaaS; listed focus areas include Cloud Infrastructure, Cybersecurity, Data and Data Analytics. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Louis Mayer invest at?
Portage Partners appears in Growth, Late-Stage and Series B rounds across its known deals, and Louis Mayer is listed there as Managing Director. 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 Louis Mayer listed at?
Louis Mayer is listed as Managing Director at Portage Partners. 7 other people in the database share a firm with Louis Mayer.
How do I contact Louis Mayer?
An email address, a phone number and a LinkedIn page are on file for Louis Mayer. 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