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Twelve

EnergySwitzerland
✂️ Markdown
Peak $1.32 BillionToday
~-56%
from peak
  1. 🦄
    Became a unicorn
    Sep 2024
  2. 📈
    Peak valuation
    $1.32 Billion ’25
  3. 💔
    Became a Unitard
    Dec 2025
  4. 💸
    Last valuation
    ~$581M
Current status
Private; secondary market implies ~$583M (Jun 2026)

How it happened

Twelve, founded in 2015, describes itself as “the carbon transformation company” and is aiming to address carbon emissions through its proprietary technology. Last valued near $1.32B (Series C-4, 2025); on the secondary market its implied valuation slipped below the $1B unicorn line in Dec 2025, and now sits around $583M — roughly 56% below that peak.

Source: Forge Global marketplace (Jun 2026)