DeepWave Ventures — Pre-Seed VC Firm ($1.0M–$3.0M Checks)
DeepWave Ventures is a Pre-Seed venture capital firm based in Baltimore, MD investing in Other, Security, SaaS. The firm typically writes $1.0M–$3.0M checks and has 4 portfolio companies in our records.
- Check size
- $1.0M–$3.0M
- Portfolio
- 4 companies on record
- Partners
- 1 listed
- Stage
- Pre-Seed
- Sectors
- Other, Security, SaaS
- HQ
- Baltimore, MD
- AUM
- Not in our records
Last verified: 2026-07-14
Pre-Seed
$1.0M – $3.0M
4+ companies
1 partner
Investment Thesis
Specializes in early-stage investments that enhance national security through advanced tech innovation in maritime and defense sectors.
How DeepWave Ventures invests
DeepWave Ventures is a vc firm based in Baltimore, MD. The firm invests at the Pre-Seed stage, with a focus on Other, Security, SaaS. It does not invest in Consumer, Media.
DeepWave Ventures typically writes checks of $1.0M–$3.0M per investment.
DeepWave Ventures has backed 4 companies in our records, including OceanGuard, Officinae Bio, Zero Farms.
Partners & Team
John Mariner
GP
Industry Focus
Invests In
Does Not Invest In
Portfolio Companies (4)
Other
OceanGuard
Officinae Bio
A company involved in biotechnology.
Zero Farms
A startup focused on sustainable agriculture solutions.
ATLANT 3D
A company specializing in advanced 3D printing technologies.
- •Raising at Pre-Seed? You're squarely in their sweet spot.
- •Lead with your fit in Other, Security, SaaS — the sectors they actively back.
- •Size your ask to their typical $1.0M – $3.0M check.
- •cold outreach ok
- •Address your outreach to a specific partner, such as John Mariner, GP.
- •A warm introduction beats a cold email. Get matched and request an intro.
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