Close Quarters Capital
Venture capitalActively deployingSeed · 1 people tracked
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Fund manager profile
Close Quarters Capital is a venture fund manager. SEC filings show 1 venture fund on record, most recently CQCII a Series of Close Quarters Capital II LLC ($3M offering) filed October 2025.
Source: SEC EDGAR Form D filings. Firm website data not yet available.
Team · 1 people
from public directoriesWhat they invest in
from 1 of 1 portfolio companiesAdvanced Manufacturing ×1Cleantech ×1New Materials ×1Robotics ×1
HQs:United States×1
Investments · 1 tracked
founders shown can be your intro pathDuranium develops reactor technology that modernizes carbochlorination metallurgy to produce titanium, magnesium, aluminum, zirconium, and hafnium with reduced emissions and lower costs while securing critical minerals for U.S. manufacturing independence.
Advanced ManufacturingCleantechNew MaterialsRoboticsSan Francisco, US
Brenden Prins-McKinney(CEO)inBerkley Noble(CTO)inMalik Salamatian(BizDevOps)
Co-investorsFundersClubStartXY CombinatorAgrolimen VenturesBand of AngelsLiquid Ventures+2 more
Portfolio news
latest coverage across their companiesDuranium · ycombinator.com · Sep 9, 2025
Frequently asked questions
- What stage does Close Quarters Capital invest at?
- Close Quarters Capital invests at the Seed stage.
- What sectors does Close Quarters Capital focus on?
- Close Quarters Capital focuses on Advanced Manufacturing.






