What stage does Mare Liberum invest at?

Mare Liberum invests at Pre-Seed, Seed stages.

What check size does Mare Liberum write?

InvestorMatch does not have a recorded check size for Mare Liberum. Its stage focus (Pre-Seed, Seed) is the best available signal for round size.

What sectors does Mare Liberum invest in?

Mare Liberum invests in Developer Tools, AI / ML.

Who are the partners at Mare Liberum?

Partners at Mare Liberum include Unspecified partners (GP).

What has Mare Liberum invested in recently?

Mare Liberum has 5+ portfolio companies, including REGENT Craft, Epirus, Saronic Technologies, Windward, Stealth Incubation.

How much capital does Mare Liberum manage?

Mare Liberum manages approximately $100M in assets under management.

Mare Liberum — Pre-Seed & Seed VC Firm

Profile updated October 2026Website

Mare Liberum is a Pre-Seed, Seed venture capital firm investing in Developer Tools, AI / ML. The firm has 5 portfolio companies in our records.

Portfolio: 5 companies on record
Partners: 1 listed
AUM: $100M
Stage: Pre-Seed, Seed
Sectors: Developer Tools, AI / ML
Check size: Not in our records

Last verified: 2026-10-27

How to approach: warm intro preferred

Stage

Pre-Seed, Seed

AUM

$100M

Portfolio

5+ companies

Team

1 partner

Investment Thesis

Maritime-technology-focused venture fund investing in companies reshaping global supply chains and unmanned systems at sea. The fund is specifically associated with maritime technology and unmanned maritime systems.

How Mare Liberum invests

Mare Liberum is a vc firm. The firm invests at the Pre-Seed, Seed stages, with a focus on Developer Tools, AI / ML.

Mare Liberum manages approximately $100M in assets. Our records include 2 funds raised by the firm.

Mare Liberum has backed 5 companies in our records, including REGENT Craft, Epirus, Saronic Technologies.

Partners & Team

Unspecified partners

Maritime Technology

Unmanned Systems

Industry Focus

Invests In

Developer Tools

AI / ML

Funds

Fund II

$100M2018

fully deployed

Fund I

$100M2015

fully deployed

Recent Activity

Raised Fund II ($100M)

2018 · fund records

Raised Fund I ($100M)

2015 · fund records

Portfolio Companies (5)

Other

REGENT Craft

Maritime mobility / autonomous systems·Series B

Builds electric seagliders for coastal passenger and cargo transport, with defense applications.

Epirus

Defense tech / electronic warfare·Not specified

Develops high-power microwave systems for counter-drone and electronic warfare applications.

Saronic Technologies

Autonomous maritime systems / defense tech·Not specified

Builds autonomous surface vessels for maritime security, surveillance, and defense operations.

Windward

Maritime intelligence / software·Not specified

Provides an AI platform for maritime domain awareness using satellite, terrestrial, and AIS data.

Stealth Incubation

AI infrastructure / critical technology·Not specified

AI data center infrastructure for critical national security applications.

How to pitch Mare Liberum

•Raising at Pre-Seed, Seed? You're squarely in their sweet spot.
•Lead with your fit in Developer Tools, AI / ML — the sectors they actively back.
•warm intro preferred
•Address your outreach to a specific partner, such as Unspecified partners, GP.
•A warm introduction beats a cold email. Get matched and request an intro.