Kieran Flanagan

Active Investor

Marketing, AI & GTM (SVP) at HubSpot

Antioch, California

Kieran Flanagan, Marketing, AI & GTM (SVP) at HubSpot is an active investor based in Antioch, California. This profile covers what Kieran Flanagan backs, at which stage, and how founders can reach out in 2026.

Mr. Kieran Flanagan is an Investor & serves as Advisor at CausalFunnel. Mr. Flanagan previously served as Chief Marketing Officer at Zapier and earlier as Senior Vice President of Marketing at HubSpot. He also served as Advisor at Growth Intelligence and later at CausalFunnel. Earlier in his career, he led marketing initiatives at Marketo, Salesforce, and other established startups. He holds a Bachelor of Arts with Honors in Computer Science from the University of Ulster.

Investor type: Angel
Stages: Early Stage VentureSeedLate Stage Venture
Invests in: SaaS & EnterpriseConsumer & RetailE-commerce & D2CDeveloper Tools & DataMedia & ContentMarketing & AdTechSocial & Community
Location: Antioch, California
Typical check: $500K
Past investments: 12

Notable investments

SoWorkWorkbounceKieranFlanagan.ioSoftriBTCPostal.ioPassionfrootChainlink LabsMiroAdzactOli (Clinics/Outpatient Services)Papaya (Business/Productivity Software)

How to reach Kieran Flanagan

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Frequently Asked Questions

What does Kieran Flanagan invest in?

Kieran Flanagan invests in SaaS & Enterprise, Consumer & Retail, E-commerce & D2C and Developer Tools & Data, typically at Early Stage Venture, Seed and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.