Sonoma
Ventures

Our family investing and advisory vehicle — backing exceptional early-stage founders in cybersecurity, data infrastructure, AI/ML, and B2B fintech.

CybersecurityData InfrastructureAI / MLB2B Fintech
55
Investments
5
Exits

Co-invested alongside

a16zAccelAcrew CapitalBattery VenturesCanaanCoatueDatabricksGeneral CatalystInsight PartnersLightspeed
Aim SecurityExit
AlteryaExit
Dig SecurityExit
DremioExit
Tres FinanceExit
Apprentice
Apprentice
Aqua
Aqua
Arato
Arato
Artemis
Aryaka Networks
Aryaka Networks
Aryon Security
Aryon Security
Bonfy
Bonfy
Brevian
Brevian
Cato Networks
Cato Networks
Chainalysis
Chainalysis
Clover
Dataflint
Dataflint
Deeto
Deeto
Dragonfly
Dragonfly
Fireblocks
Fireblocks
Folloze
Folloze
Formations
Formations
Foundational
Foundational
Fullview
Fullview
Guidde
Honeydew
Honeydew
Legion Security
Loophole Labs
Loophole Labs
M
MLCode
Namespace
Namespace
Nekuda
Nekuda
NextData
NextData
Nimble Data
Novee
OnOrder
OnOrder
O
Opener (FKA Rightorder)
Qwilt
Qwilt
Raven
Raven
Slice
Squid
Squid
Tamnoon
Tamnoon
Thenvoi
Thenvoi
Torch Security
Torch Security
Typedef
Typedef
Viably
Viably
Weelth Group (Taxxwiz)
Weelth Group (Taxxwiz)
Zamp
Zamp
Aim SecurityExit
AlteryaExit
Dig SecurityExit
DremioExit
Tres FinanceExit
Apprentice
Apprentice
Aqua
Aqua
Arato
Arato
Artemis
Aryaka Networks
Aryaka Networks
Aryon Security
Aryon Security
Bonfy
Bonfy
Brevian
Brevian
Cato Networks
Cato Networks
Chainalysis
Chainalysis
Clover
Dataflint
Dataflint
Deeto
Deeto
Dragonfly
Dragonfly
Fireblocks
Fireblocks
Folloze
Folloze
Formations
Formations
Foundational
Foundational
Fullview
Fullview
Guidde
Honeydew
Honeydew
Legion Security
Loophole Labs
Loophole Labs
M
MLCode
Namespace
Namespace
Nekuda
Nekuda
NextData
NextData
Nimble Data
Novee
OnOrder
OnOrder
O
Opener (FKA Rightorder)
Qwilt
Qwilt
Raven
Raven
Slice
Squid
Squid
Tamnoon
Tamnoon
Thenvoi
Thenvoi
Torch Security
Torch Security
Typedef
Typedef
Viably
Viably
Weelth Group (Taxxwiz)
Weelth Group (Taxxwiz)
Zamp
Zamp
Aim SecurityExit
AlteryaExit
Dig SecurityExit
DremioExit
Tres FinanceExit
Apprentice
Apprentice
Aqua
Aqua
Arato
Arato
Artemis
Aryaka Networks
Aryaka Networks
Aryon Security
Aryon Security
Bonfy
Bonfy
Brevian
Brevian
Cato Networks
Cato Networks
Chainalysis
Chainalysis
Clover
Dataflint
Dataflint
Deeto
Deeto
Dragonfly
Dragonfly
Fireblocks
Fireblocks
Folloze
Folloze
Formations
Formations
Foundational
Foundational
Fullview
Fullview
Guidde
Honeydew
Honeydew
Legion Security
Loophole Labs
Loophole Labs
M
MLCode
Namespace
Namespace
Nekuda
Nekuda
NextData
NextData
Nimble Data
Novee
OnOrder
OnOrder
O
Opener (FKA Rightorder)
Qwilt
Qwilt
Raven
Raven
Slice
Squid
Squid
Tamnoon
Tamnoon
Thenvoi
Thenvoi
Torch Security
Torch Security
Typedef
Typedef
Viably
Viably
Weelth Group (Taxxwiz)
Weelth Group (Taxxwiz)
Zamp
Zamp

Investment Focus

Where we invest

We focus on early-stage Israeli-founded companies across four intersecting domains. We look for technical founders with deep domain expertise solving hard problems with novel approaches.

Cybersecurity

The threat landscape evolves faster than enterprise defenses. We back founders building identity-first security, cloud-native protection, threat detection and response, and zero-trust architectures — companies that make security proactive, not reactive.

Data Infrastructure

Data is the foundation of every modern business decision. We invest in the next generation of pipelines, real-time streaming, storage, and the modern data stack — the picks and shovels that power analytics and AI at scale.

AI / ML

AI is transforming every industry, but the infrastructure underneath matters most. We focus on ML infrastructure, LLM tooling and applications, AI operations, and the developer experience that makes AI accessible to every engineering team.

B2B Fintech

Financial infrastructure is being rebuilt for the API era. We back founders building payment rails, embedded finance, risk and compliance tooling, and the connective tissue between traditional finance and modern software — turning regulated, slow workflows into developer-friendly building blocks.

Our Thesis

“The best technical companies — across cybersecurity, data, AI, and B2B fintech — are increasingly built by Israeli founders who combine deep technical talent with a security-first mindset. We aim to be their earliest believer.”

Pre-Seed through Series A  ·  Check sizes $50K – $250K  ·  Hands-on advisory

Co-Investors

We invest alongside

A small selection of the firms we’ve co-invested with across the portfolio — leading US generalists, growth and crossover funds, and the best Israeli early-stage firms.

a16z
Accel
Acrew Capital
Battery Ventures
Canaan
Coatue
Databricks
General Catalyst
Insight Partners
Lightspeed
NEA
Norwest
Notable Capital
Pitango
Redpoint
Snowflake
Team8
TLV Partners
Viola
Wing
YL Ventures

About

Opher Kahane

Opher Kahane

Angel Investor & Advisor

LINKEDIN PROFILE

I'm a serial entrepreneur turned investor with over 30 years in technology. My career has spanned founding and scaling companies, leading engineering teams, and advising startups from their earliest days through exits.

Sonoma Ventures is my family's investing and advisory vehicle. I focus exclusively on Israeli-founded startups at the pre-seed through Series A stages, with deep conviction in cybersecurity, data infrastructure, and AI/ML. I've seen firsthand how the Israeli ecosystem produces world-class technical founders — and I want to be their earliest supporter.

I don't just write checks. I work closely with founders on go-to-market strategy, product positioning, customer introductions, and hiring. My approach is hands-on and high-trust — I believe the best investor-founder relationships are built on candor and real operational partnership.

When I'm not meeting founders, you'll find me building this very website with my 13-year-old son — our latest father-son project.

Get in Touch

Interested in our portfolio or want to discuss an investment opportunity?

© 2026 Sonoma Ventures.