Fundraising Fox

33N

Venture capital

Silicon Valley · Seed–Series B · 49 people tracked

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Investment thesis

33N is a European VC firm investing globally in frontier Cybersecurity, AI, and Defense companies that secure and power the AI era. With more than a decade of specialist experience across the modern cyber cycle, the firm backs early-stage founders building category leaders, having supported three unicorns at their earliest rounds and seen portfolio companies acquired by global tech giants. The firm leverages proprietary data, deep sector knowledge, and relationships, and is backed by a network of 50+ CISOs, AI and data leaders, and operators organized into two forums — the CISO Circle and the AI & Data Circle — to connect portfolio companies with customers, channels, and technical talent.

Invests inAI & Machine LearningCybersecurityData & InfrastructureDefense TechEnterprise SoftwareSaaSEuropeFranceGlobalIsraelItalyMiddle East & North AfricaNorth AmericaPortugalSilicon ValleySpainUnited States

Source: firm website, verified Aug 3, 2026.

Stage
Seed–Series B
Check
$4.3M – $13M
HQ
Silicon Valley, LU
Leads rounds
Leads
Instruments
Equity
Founded
2014
AUM
$220M
Tracked investments
29

Team · 49 people

from the firm's website & public directories
Achiad Avivi· Expert Advisory Board — Founder at LAS securityin
Eyal Hayardeny· Strategic Committee — Co-Founder at Reblazein

Co-founder of Reblaze; member of the Strategic Committee.

Guy Bejerano· Expert Advisory Board — Co-Founder & CEO at SafeBreachin
Joe Vadakkan· Expert Advisory Board — Founder of Atomic Zero
José Ramón· Expert Advisory Board — Founder at Nextel
Pablo de la Riva· Co-founder & CEO
Paulo Marques· Strategic Committee — Co-Founder at Feedzai

Co-founder of Feedzai; member of the Strategic Committee.

Pawel Boksa· Expert Advisory Board — Private Equity Professional, Co-founder at CDeX P.S.A.in
Ricardo Oliveira· Expert Advisory Board — Co-Founder & CTO at ThousandEyes (acquired by Cisco)
Shyam Krishnaswamy· Expert Advisory Board — Co-Founder at Deepfencein
Xavier Vincens· Expert Advisory Board — Co-founder and Managing Director at Excellium Servicesin
Adam Frankl· Expert Advisory Board — Partner at Alchemist Acceleratorin
Alina Medentsy· VC Operations Analystin
André Azevedo· Expert Advisory Board — CEO at Ancoris
Artur Monteiro· Technologist In Residence
Ayman Hammoudeh· Expert Advisory Board — Venture Advisorin
Elie AbenMoha· Expert Advisory Board — Chief IT Security Officer at Publicis Groupein
Gonçalo Sarmento· Senior Associate
Hadi Anwar· Expert Advisory Board — Chief Cybersecurity Officer at Core42
Henrique Silva· Expert Advisory Board — Head of AI & Data at Lokain
John Cassidy· Expert Advisory Board — Bus Dev Manager at Palo Alto
Julien Reynaud· Expert Advisory Board — Former Head of Investments at ISTARI (part of Temasek)in
Médéric Hurier· Expert Advisory Board — AI/ML Architect & Engineer
Michael J. Glenn· Expert Advisory Board — Global Cybersecurity Architecture & Engineering Leader at Deloitte
Nuno Cerdeira Baptista· Expert Advisory Board — Global Field CISO and CTO for Aviation & Transportation
Paulo Moniz· Expert Advisory Board — Director of Information Security and IT Risk at EDPin
Pierre Polette· Strategic Committee — Group CEO at Sinariin

Group CEO at Sinari; member of the Strategic Committee.

Roma Jelinskaite· Strategic Committee — Managing Director at Criteria Venture Techin

Managing Director at Criteria Venture Tech; member of the Strategic Committee.

Sergio Loureiro· Expert Advisory Board — VP of Product Strategy at Outpost24in

What they invest in

from 10 of 29 portfolio companies

Cybersecurity ×8Enterprise Software ×7AI & Machine Learning ×5SaaS ×4Developer Tools ×3Data & Infrastructure ×2Fintech ×2Cloud Computing ×1

HQs:United States×1

Investments · 29 tracked

founders shown can be your intro path
Acoruacoru.comin

Acoru is an AI-native fraud prevention platform that ingests and unifies data across channels to detect pre-fraud signals, scoring and classifying accounts as money mules, victims, or laundering accounts before fraud occurs.

AI & Machine LearningCybersecurityFintech

Aponoapono.ioin𝕏

Cybersecurity company acquired by 1Password

CybersecurityEnterprise SoftwareSaaS

Sara Teare(Founder)

Arctic Wolfarcticwolf.comin𝕏

Arctic Wolf provides managed detection and response (MDR) services with 24x7 security teams that detect, investigate, and respond to threats using an open XDR platform processing trillions of events weekly.

AI & Machine LearningCybersecurityEnterprise SoftwareSaaS

Brian NeSmith(Founder & CEO)

Aryakaaryaka.comin𝕏
Barracudabarracuda.comin𝕏

Barracuda provides a cybersecurity platform (BarracudaONE) covering email, data, application, and network protection, along with a managed XDR service for threat detection and incident response.

CybersecurityEnterprise SoftwareSaaS

BitSight Technologiesbitsight.comin𝕏Jun 2018

Bitsight provides a cyber risk intelligence platform that monitors entities across the internet to identify vulnerabilities and emerging threats in real time.

AI & Machine LearningCybersecurityData & InfrastructureEnterprise SoftwareCambridge, US

Nagarjuna Venna(Executive Officer, Director)Shaun McConnon(Executive Officer, Director)Robert T Turner(Executive Officer, Director)Brendan Hanningan(Director)David Fachetti(Executive Officer, Director)Stephen Boyer(Executive Officer)

Codacycodacy.comin𝕏
Cybersixgillcybersixgill.comin𝕏
DataGalaxydatagalaxy.comin

DataGalaxy is a data and AI governance platform that helps organizations create context from their data, enforce governance policies, and track the business value of AI initiatives.

AI & Machine LearningData & InfrastructureEnterprise Software

Deepfencedeepfence.io𝕏
Equixlyequixly.comin
Excellium Servicesexcellium-services.com
Exeinexein.ioin𝕏
Feedzaifeedzai.comin𝕏

Feedzai provides AI-powered fraud detection and financial crime prevention for banks and financial institutions.

AI & Machine LearningCybersecurityFintech

Nuno Sebastião(Founder & CEO)in

Hackuityhackuity.ioin𝕏
Irius Riskiriusrisk.comin
Jscramblerjscrambler.comin𝕏

Jscrambler provides client-side application security, including polymorphic JavaScript code protection, software supply chain defense, and browser data governance to protect web applications against reverse-engineering, digital skimming, and third-party script vulnerabilities.

CybersecurityDeveloper ToolsEnterprise Software

Link11link11.comin
Meduxmedux.comin𝕏
OutSystemsoutsystems.comin𝕏
Panorayspanorays.comin𝕏
Portainerportainer.ioin

Portainer builds a container management platform that simplifies deployment and administration of containerized applications.

Cloud ComputingDeveloper ToolsEnterprise Software

Probelyprobely.comin𝕏

Probely is a security testing platform that discovers APIs and web applications, finds their vulnerabilities, prioritizes them, and provides guidance on how to fix them.

CybersecurityDeveloper ToolsSaaS

Reblazereblaze.com
SafeBreach Attack Simulation Platformsafebreach.comin𝕏

Cybersecurity company providing automated breach and attack simulation solutions to enterprise customers.

StrikeReadystrikeready.comin𝕏

AI-powered security command center combining SIEM, SOAR, and workflow automation

Thalesgroupthalesgroup.com
Weaveweave.works

Portfolio news

latest coverage across their companies

Frequently asked questions

What stage does 33N invest at?
33N invests at the Seed, Series A, Series B stages.
What is 33N's typical check size?
33N typically writes checks of $4.3M – $13M.
What sectors does 33N focus on?
33N focuses on AI & Machine Learning, Cybersecurity, Data & Infrastructure, Defense Tech, Enterprise Software, SaaS.
Where is 33N located?
33N is headquartered in Silicon Valley, LU.
Does 33N lead rounds?
Yes, 33N leads investment rounds.

Images

33N photo

Co-investors · 19

Bright Pixel Capital

Bright Pixel Capital is an investment firm backing technology companies, with a strong focus on cybersecurity, retail tech, and infrastructure software across multiple geographies.

Both backed · 16
Arctic WolfFeedzaiJscramblerPortainerProbelySafeBreach Attack Simulation PlatformCodacyCybersixgillDeepfenceExcellium ServicesHackuityIrius RiskMeduxOutSystemsReblazeWeave
JME Ventures

JME Ventures is a Spain-focused seed-stage venture capital firm that backs founders building world-class solutions, having invested in over 70 startups since 2012.

Both backed · 2
EquixlyIrius Risk
$108K – $3.3M
Lightspeed Venture Partners

Lightspeed Venture Partners is a global venture capital firm known for backing AI and technology founders, emphasizing deep, hands-on partnerships with the companies it funds.

Both backed · 1
$1.7M – $87M
Bessemer Venture Partners

Bessemer Venture Partners is a venture capital firm that partners with entrepreneurs from early stages through every stage of growth, publishing investment roadmaps across multiple technology sectors.

Both backed · 1
$5M – $100M
Accel

Accel is a venture capital firm that partners with exceptional founding teams, positioning itself as a first partner to startups globally.

Both backed · 1
$1.6M – $70M
Balderton Capital

Balderton Capital's portfolio page listing companies it has backed across stages, sectors, and geographies, primarily in Europe.

Both backed · 1
Exein
$5M – $50M
Unusual Ventures

Unusual Ventures is an early-stage venture capital firm that backs enterprise founders from initial insight through market leadership, providing a proprietary playbook for finding product-market fit.

Both backed · 1
$1M – $15M
AllegisCyber Capital

AllegisCyber Capital is a venture capital firm focused exclusively on cybersecurity investments, emphasizing deep domain expertise and operating experience.

Both backed · 1
Deepfence
$3M – $5M
360 Capital

360 Capital is a European venture capital firm active since 1997, investing in innovative technology startups across deep-tech, climate-tech and digital sectors.

Both backed · 1
Irius Risk
$162K – $10.8M
Adara Ventures

Adara Ventures is an early-stage technology investor with roughly two decades of experience backing companies built on proprietary data, trust, domain depth and physical systems.

Both backed · 1
$540K – $7.6M
Swanlaab Venture Factory

Swanlaab Venture Factory is a Spanish venture capital firm that invests in and actively supports founders building high-growth companies, providing capital, strategic expertise and hands-on company-building support.

Both backed · 1
Irius Risk
$540K – $3.2M
GV (Google Ventures)

GV (formerly Google Ventures) is a venture investment firm that backs founders across many industries, aiming to build long-term relationships and support companies across multiple stages and milestones.

$250K – $50M
7 more co-investors

Intel CapitalNextGen Venture PartnerseCAPITAL ENTREPRENEURIAL PARTNERSSands Capital VenturesPortugal VenturesSunvest Capital PartnersArctic Wolf

Firms observed investing alongside 33N, from public investor directories. Shared companies are the overlap with 33N's recorded portfolio.

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