Schooner Capital
Crossover fundBoston · Seed–Late Stage · 17 people tracked
Investment thesis
Schooner Capital operates from a permanent, evergreen capital base, investing in both private companies and public securities. It looks across sector, stage and geography, emphasizing independent judgment and contrarian thinking. With a patient approach developed over 55 years, the firm often invests multiple times in its holdings and favors deep, long-term partnerships with strong teams. Its evergreen structure and entrepreneurial roots let it respond to opportunities without mandate constraints or fundraising pressures. Profits support The Schooner Foundation, which is engaged in human rights causes globally.
Source: firm website, verified Aug 3, 2026.
Team · 17 people
from the firm's websiteWhat they invest in
from 7 of 32 portfolio companiesBiotech ×3AI & Machine Learning ×2Data & Infrastructure ×2Deep Tech ×2Cleantech ×1Climate Tech ×1Cloud Computing ×1Digital Health ×1
HQs:United States×7Ireland×1
Investments · 32 tracked
founders shown can be your intro pathCartesian Therapeutics develops mRNA-based cell therapies for autoimmune diseases.
BiotechHealthtechWatertown, US
Metin Kurtoglu(Executive Officer)Chris Jewell(Executive Officer)Carsten Brunn(Executive Officer, Director)Emily English(Executive Officer)Blaine Davis(Executive Officer)Stephen Smolinksi(Executive Officer)
Commonwealth Fusion Systems develops commercial fusion power plants using high-temperature superconducting magnet technology to provide grid-scale energy.
CleantechClimate TechDeep TechEnergyUnknown, US
Brandon Sorbom(Founder)Robert Mumgaard(Executive Officer, Director)Daniel Brunner(Executive Officer)Massimiliano Pieri(Director)Katie Rae(Director)Alan Eustace(Director)
Congruity360 provides unstructured data management and governance software for enterprises managing large, dispersed datasets across multiple storage systems.
AI & Machine LearningCloud ComputingData & InfrastructureEnterprise SoftwareFall River, US
Cullinan Therapeutics develops clinical-stage T cell engager therapies targeting autoimmune diseases and cancer, leveraging immune modulation expertise to advance high-impact therapeutic candidates.
BiotechDigital Health
Manna operates an air delivery service using drone technology to deliver medical equipment, food, and other goods, with plans to reduce traffic and improve air quality in urban areas.
Deep TechLogistics & Supply ChainMobility & Transportation
Arlington, US
John Corso(Director)Clyde Davis(Executive Officer, Director)Roy Phillips(Executive Officer, Director)Patrick O'Reilly(Director)Pawan Malhotra(Director)Timothy P O'Reilly(Director)
PartnerTed Henderson· led
Ottometric provides a cloud-based data platform for developing driver-assistance and autonomous vehicle systems, automating validation workflows and transforming test data into actionable insights for automotive OEMs and suppliers.
AI & Machine LearningData & InfrastructureSaaSWaltham, US
Joseph Burke(Executive Officer, Director)inRich Redelfs(Director)inJohn Curran(Executive Officer)Nick Pandher(Executive Officer)
BoardOrhan Gazelle(Director)Zenas Hutcheson(Director)
PartnerPeter Binas· led
PartnerTed Henderson· led
Frequently asked questions
- What stage does Schooner Capital invest at?
- Schooner Capital invests at the Seed, Late Stage stages.
- What sectors does Schooner Capital focus on?
- Schooner Capital focuses on Sector Agnostic.
- Where is Schooner Capital located?
- Schooner Capital is headquartered in Boston, US.
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