Brian Sack
Partner at TLV Partners
Israel
Brian Sack, Partner at TLV Partners is an active investor based in Israel. This profile covers what Brian Sack backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCPEInvestor
- Stages
- Early Stage VentureSeries ASeries B
- Invests in
- CybersecuritySaaS & EnterpriseHealthcare & BiotechSports & Fitness
- Location
- Israel
- Typical check
- $1M
- Past investments
- 38
Notable investments
Flip Fit
Granulate
Rookout
Immunai
Firebolt
Skyline AI
Oribi
Aqua Security
Guesty
ZencityLightlyticsHow to reach Brian Sack
Angels and operators like Brian Sack 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.
Connect with Brian Sack
Frequently Asked Questions
What does Brian Sack invest in?
Brian Sack invests in Cybersecurity, SaaS & Enterprise, Healthcare & Biotech and Sports & Fitness, typically at Early Stage Venture, Series A and Series B. Match your sector and stage, then reach out with a personalized pitch.
What stage does Brian Sack invest at?
Brian Sack typically invests at Early Stage Venture, Series A and Series B. Lead with traction that fits the stage when you reach out.
What is Brian Sack's typical check size?
Brian Sack typically writes checks around $1M. Use it as a signal for whether your raise fits their stage.
How do I contact Brian Sack?
Unlock Brian Sack's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.