Fundraising Fox

Mariana Minerals

San Francisco, US · Founded 2024 · Delaware corporation · 7 known investors

marianaminerals.com ↗

Mariana Minerals is a vertically integrated minerals supplier that uses software to source critical minerals for energy, AI, and defense technologies.

AI & Machine LearningEnergyNew Materialsin /mariana-minerals

Founders & leadership

TCTurner Caldwell
Turner CaldwellinExecutive Officer, Director, Promoter
JL
Juan Lozano Van De VenExecutive Officer, Director, Promoter
S(
Schuyler (Baker) TilneyExecutive Officer, Director, Promoter
EP
Erin Price-WrightDirector
SK
Samir KaulDirector

Investors · 7

Andreessen HorowitzMenlo Park · $500K – $50M
Earthshot VenturesSydney · $100K – $5M
Inception Studio CapitalSilicon Valley · $100K – $1.5M
Khosla VenturesMenlo Park · $5K – $50M
BEVreportedBoston
Breakthrough Energy VenturesreportedBoston · $500K – $50M
Index VenturesreportedSan Francisco · $540K – $10.8Mvia Erin Price-Wright · board

Reported raises · per SEC filings

Form D private placements
▶$310.5MraisedAug 2026 · 23 investors · Other Energy
Rule 506(b)
Officers, directors & promoters on the filing
  • Turner CaldwellExecutive Officer, Director, Promoter
  • Juan Lozano Van De VenExecutive Officer, Director, Promoter
  • Schuyler (Baker) TilneyExecutive Officer, Director, Promoter
  • Erin Price-WrightDirector
  • Samir KaulDirector
Offering amount
$310.5M
Amount sold
$310.5M
First sale
Jul 2026
Incorporated
Corporation, Delaware, 2024
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$73.5MraisedApr 2026 · 27 investors · Other Energy
Rule 506(b)
Officers, directors & promoters on the filing
  • Turner CaldwellExecutive Officer, Director, Promoter
  • Juan Lozano Van De VenExecutive Officer, Director, Promoter
  • Schuyler (Baker) TilneyExecutive Officer, Director, Promoter
  • Erin Price-WrightDirector
Offering amount
$76M
Amount sold
$73.5M
First sale
Jun 2025
Incorporated
Corporation, Delaware, 2024
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

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