Where does Ryan Kruizenga work?

Ryan Kruizenga is General Partner at Arthur Ventures and Board director at zizzl and Board director at Opterrix Group, Inc. and Board director at Handl Health.

What check size does Ryan Kruizenga write?

Ryan Kruizenga typically writes checks of $100K – $5M.

What boards does Ryan Kruizenga sit on?

Ryan Kruizenga holds tracked board seats at Cybrary, DNSFilter, Documo, Handl Health, Hudu, Opterrix Group, Inc., Praxis Campus Management Software, Inc., Streamline Software, Inc., Threatlocker, Zartico.

Where did Ryan Kruizenga go to school?

Ryan Kruizenga studied at University of St. Thomas (BA, Entrepreneurship).

Ryan Kruizenga

Investor

General Partner at Arthur Ventures · Board director at zizzl · Board director at Opterrix Group, Inc. · Board director at Handl Health

Minneapolis, Minnesota

Writes $100K – $5M checks · typically $1.5M

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About

Ryan Kruizenga, a General Partner specializing in vertical SaaS and infrastructure-heavy software, works closely with founders to scale go-to-market and systems integration, modernizing payroll, cybersecurity and destination-intelligence workflows.

Contact· self-published, not guessed

ryan@arthurventures.com

Invests in

CybersecurityEnterprise SoftwareFintechHealthtechSaaS

Board director at zizzl

Intro paths

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In turn, Ryan can intro founders to zizzl's investors below.

zizzl's investors · 1

Arthur VenturesMinneapolis · $1M – $10M checks · since 2026

Board director at Opterrix Group, Inc.

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In turn, Ryan can intro founders to Opterrix Group, Inc.'s investors below.

Opterrix Group, Inc.'s investors · 1

Arthur VenturesMinneapolis · $1M – $10M checks · since 2025

Board director at Handl Health

Intro paths

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In turn, Ryan can intro founders to Handl Health's investors below.

Handl Health's investors · 9

Arthur VenturesMinneapolis · $1M – $10M checks · since 2026 Boutique Venture PartnersPalo Alto · since 2026 DHVPPotomac · since 2025 Everywhere VenturesNew York · $250K checks Mucker CapitalVenice · $250K – $750K checks · since 2026 National Institutes of Health (NIH)since 2021 Riverfront Ventures, LLCPittsburgh · $250K – $1M checks · since 2026 Tau VenturesPalo Alto · $500K checks TechstarsBoulder · $220K checks

Co-founders at Handl Health

Aishwaria ShahExecutive Officer, Director, Promoter

Ahmed MarmoushExecutive Officer, Director, Promoter

AhmedCo-founder

RiaCo-founder

Experience

Arthur VenturesPartnercurrent2016 — presentGreater Minneapolis-St. Paul Area
University of St. ThomasMember Board of Trusteescurrent2026 — presentGreater Minneapolis-St. Paul Area
Mainsail PartnersVice President2013 — 2016San Francisco Bay Area
TeamZoomFounder2012 — 2013San Francisco Bay Area
Summit PartnersSenior Associate2007 — 2011San Francisco Bay Area
Piper JaffrayAnalyst2005 — 2007
TripleTreeAnalyst2004 — 2005

Deals · 4

zizzlBoard seat

via Arthur Ventures · filed Apr 2026 · $1.5M raise

Opterrix Group, Inc.Board seat

via Arthur Ventures · filed Oct 2025 · $11.5M raise

Praxis Campus Management Software, Inc.Board seat

via Arthur Ventures · filed Mar 2025 · $746.2K raise

Streamline Software, Inc.Board seat

via Arthur Ventures · filed Jan 2025 · $7.9M raise

Attribution from SEC filings, press coverage, and firm rosters.

Other disclosed investments

Board seats

Cybrary DNSFilter Documo Handl Health Hudu Threatlocker Zartico

Investor

CrushBankCyberqpCybraryFormationsLinux AcademyNucleus SecurityPayroll IntegrationsZartico

Sources: SEC Form D filings · curated public sources.

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Colleagues at Arthur Ventures

Andrew Heim

General Partner at Arthur Ventures

Anna Talerico

Partner at Arthur Ventures

Anthony James

Venture Partner at Arthur Ventures

Avnika (Avi) Gupta

Associate at Arthur Ventures

Brittany Patterson

Director at Arthur Ventures

Cael Berg

Analyst at Arthur Ventures

Chloe Ginkel

Associate at Arthur Ventures

Derek Buschow

Entrepreneur in Residence at Arthur Ventures

Frequently asked questions

Who is Ryan Kruizenga?: Ryan Kruizenga, a General Partner specializing in vertical SaaS and infrastructure-heavy software, works closely with founders to scale go-to-market and systems integration, modernizing payroll, cybersecurity and destination-intelligence workflows.
Where does Ryan Kruizenga work?: Ryan Kruizenga is General Partner at Arthur Ventures and Board director at zizzl and Board director at Opterrix Group, Inc. and Board director at Handl Health.
What does Ryan Kruizenga invest in?: Ryan Kruizenga invests in Cybersecurity, Enterprise Software, Fintech, Healthtech, SaaS.
What check size does Ryan Kruizenga write?: Ryan Kruizenga typically writes checks of $100K – $5M.
What boards does Ryan Kruizenga sit on?: Ryan Kruizenga holds tracked board seats at Cybrary, DNSFilter, Documo, Handl Health, Hudu, Opterrix Group, Inc., Praxis Campus Management Software, Inc., Streamline Software, Inc., Threatlocker, Zartico.
What companies has Ryan Kruizenga invested in?: Investments tracked here include CrushBank, Cyberqp, Cybrary, Formations, Linux Academy, Nucleus Security, Payroll Integrations, Zartico.
Where did Ryan Kruizenga go to school?: Ryan Kruizenga studied at University of St. Thomas (BA, Entrepreneurship).