Steve Ciesinski is an angel investor based in San Francisco, California, United States. The known portfolio counts 5 companies: Payjoy, BrightCrowd, Luther Systems, Picus and Synnada.
Is Steve Ciesinski a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
- Stage
- Seed
- Sector
- AIHealthcareSaaS
Contacts
Steve Ciesinski portfolio companies (5)
- Payjoy
- BrightCrowd
- Luther Systems
- Picus
- Synnada
Investor Profile
The listing covers sectors AI, Healthcare and SaaS, and focus areas Biotech, DeepTech, Diagnostics and Drug Discovery. Startups operating in these areas may find Steve Ciesinski relevant.
Stage-wise, the known deals cluster around Seed rounds.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
Similar investors
Showing 20 of 100
Jeff Szekeres
Senior Vice President
Solana Beach, United States
Al Sisto
CEO
San Francisco, United States
Robert Stein
angel investor
New York, United States
Chris Rust
angel investor
Menlo Park, United States
Steve Bernardez
Partner
San Carlos, United States
Ian Patrick Sobieski
Vice Chair
Mountain View, United States
Michael Finney
angel investor
San Francisco, United States
Jeffrey Kaditz
angel investor
Cyriac Roeding
Investor
Portola Valley, United States
Simon Crosby
CTO
Kirkland, United States
Andrew R. Karlin
angel investor
New York, United States
Mark Siegel
Managing Director
Jackson, United States
Steven Collens
CEO
Chicago, United States
Wong
angel investor
Palo Alto, United States
Chris Jackson
angel investor and operator angel
New York, United States
Michael Jin
Managing Partner
Palo Alto, United States
Etienne Crevier
angel investor and operator angel
Montreal, Canada
Richard Steele
angel investor
Longmeadow, United States
Steve Jang
Founder & Managing Partner
San Francisco, United States
Steve Chen
angel investor and operator angel
Hayward, United States
Frequently asked questions
Who is Steve Ciesinski?
Steve Ciesinski is an angel investor based in San Francisco, California, United States with 5 known investments on file, among them Payjoy, BrightCrowd and Luther Systems. The sections above list the sectors and stages attached to that record.
What does Steve Ciesinski invest in?
Listed sectors include AI, Healthcare and SaaS; listed focus areas include Biotech, DeepTech, Diagnostics and Drug Discovery. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Steve Ciesinski invest at?
The known deals of Steve Ciesinski include Seed rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
How do I contact Steve Ciesinski?
An email address, a phone number and a LinkedIn page are on file for Steve Ciesinski. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
Skip the browsing. Let AI find your ideal investors in one minute.
Paste your startup website and AI picks your best-fit investors out of 135,000+ profiles.
Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal