David Mullen works as a Partner Emeritus at Graycliff Partners. The firm's known portfolio counts 8 companies.
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Investment focus
- Stage
- Late-Stage
- Focus
- 3D TechnologyCustomer ServiceIndustrial DistributionNiche ManufacturingSupply ChainWarehousing
Contacts
Affiliated funds' portfolios
Partner Emeritus at Graycliff Partners, whose known portfolio counts 8 companies
- Guidewell Education
- MKD Electric
- ATRO Engineered Systems
- NewAir
- Raptor Scientific
- CHawk Technology Int'l
- PumpMan
- Republic Electric
Investor Profile
The listing covers sectors Commerce and Hardware, and focus areas 3D Technology, Customer Service, Industrial Distribution and Niche Manufacturing. Startups operating in these areas may find David Mullen relevant.
Stage-wise, the deals at Graycliff Partners cluster around Late-Stage rounds.
The firm portfolio and the focus above give founders context on whether David Mullen matches their raise.
Colleagues at Graycliff Partners
Sarah Paquet
Investor
New York City, United States
Taylor Catarozoli
Managing Director
Greenwich, United States
Frank Cacace
Principal
New York, United States
Cosmo Steier
Vice President
New York, United States
Stephen Hindmarch
Managing Director
Seattle, United States
Matthew Celona
Vice President
New York, United States
Andrew Trigg
Managing Partner
New York, United States
Greg Olson
Operating Partner
Hanover, United States
Ryan Supple
Managing Director
Louisville, United States
Matt S.
Principal
New York, United States
Duke Punhong
Managing Partner
United States
Frequently asked questions
Who is David Mullen?
David Mullen is a private equity investor and venture debt investor based in Vancouver, British Columbia, Canada, listed as Partner Emeritus at Graycliff Partners. The known portfolio of that firm counts 8 companies. That portfolio belongs to the firm, not to David Mullen personally.
What does David Mullen invest in?
Listed sectors include Commerce and Hardware; listed focus areas include 3D Technology, Customer Service, Industrial Distribution and Niche Manufacturing. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does David Mullen invest at?
Graycliff Partners appears in Late-Stage rounds across its known deals, and David Mullen is listed there as Partner Emeritus. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is David Mullen listed at?
David Mullen is listed as Partner Emeritus at Graycliff Partners. 11 other people in the database share a firm with David Mullen.
How do I contact David Mullen?
An email address, a phone number and a LinkedIn page are on file for David Mullen. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal