Mark Jantzen is an Investor at JWI Capital, whose known portfolio counts 2 companies.
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Investment focus
- Stage
- Late-Stage
- Sector
- Commerce
- Focus
- Environmental ServicesLogistics
Contacts
Affiliated funds' portfolios
Investor at JWI Capital, whose known portfolio counts 2 companies
- EnviroScience
- Weaver Express
Investor Profile
Mark Jantzen is listed against sector Commerce, and focus areas Environmental Services and Logistics in the database.
JWI Capital appears in Late-Stage rounds across its known deals.
The firm portfolio and the focus above give founders context on whether Mark Jantzen matches their raise.
Colleagues at JWI Capital
Frequently asked questions
Who is Mark Jantzen?
Mark Jantzen is a private equity investor based in Cleveland, Ohio, United States, listed as Investor at JWI Capital. The known portfolio of that firm counts 2 companies. That portfolio belongs to the firm, not to Mark Jantzen personally.
What does Mark Jantzen invest in?
Listed sectors include Commerce; listed focus areas include Environmental Services and Logistics. 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 Mark Jantzen invest at?
JWI Capital appears in Late-Stage rounds across its known deals, and Mark Jantzen is listed there as Investor. 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 Mark Jantzen listed at?
Mark Jantzen is listed as Investor at JWI Capital. One other person in the database shares a firm with Mark Jantzen.
How do I contact Mark Jantzen?
An email address, a phone number and a LinkedIn page are on file for Mark Jantzen. 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