Louis Toth
Managing Partner at Alter Venture Partners
San Francisco, California
Louis Toth, Managing Partner at Alter Venture Partners is an active investor based in San Francisco, California. This profile covers what Louis Toth backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPEInvestment Bank
- Stages
- Pre SeedSeedSeries ASeries BLate Stage Venture
- Invests in
- SaaS & EnterpriseHardware & Deep TechArtificial IntelligenceFintechMedia & ContentE-commerce & D2CDeveloper Tools & DataCybersecurity
- Location
- San Francisco, California
- Typical check
- $1M
- Past investments
- 44
Notable investments
VitrueVideonTANDBERG TV Former SkyStream NetworksHalf.comLilac CloudImmedia Semiconductor
Broadbus TechnologiesBNI VideoDataPelagoArroyo Video Solutions
Banyan Security
Maginatics, IncHow to reach Louis Toth
Angels and operators like Louis Toth reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded Accelerator.
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Frequently Asked Questions
What does Louis Toth invest in?
Louis Toth invests in SaaS & Enterprise, Hardware & Deep Tech, Artificial Intelligence and Fintech, typically at Pre Seed, Seed, Series A and Series B. Match your sector and stage, then reach out with a personalized pitch.
What stage does Louis Toth invest at?
Louis Toth typically invests at Pre Seed, Seed, Series A and Series B. Lead with traction that fits the stage when you reach out.
What is Louis Toth's typical check size?
Louis Toth typically writes checks around $1M. Use it as a signal for whether your raise fits their stage.
How do I contact Louis Toth?
Unlock Louis Toth's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.