AlphaMaven AlphaMaven

September VC Report: Crypto VC funding rises more than 71% month over month, as Polymarket reaches a $21 billion valuation after a $300 million investment from Donald Trump Jr.'s firm

Reported by Wublock
Oct 1, 2026· 2 min read
Save Post LinkedIn Email
Key Takeaways
  • • Crypto venture capital funding surged 71.1% month-over-month in September 2026, reaching $1.269 billion compared to $742 million in August, signaling renewed institutional appetite for digital asset ventures.
  • • Polymarket, a prediction markets platform, closed a $1 billion funding round at a $21 billion valuation, representing a 40% increase from its $15 billion valuation four months prior and establishing it as a high-growth fintech unicorn.
  • • 1789 Capital, the venture firm where Donald Trump Jr. serves as a partner, led Polymarket's funding round with a $300 million individual commitment, marking the largest single check in the investment and underscoring political connections in crypto-adjacent venture capital.
  • • Polymarket's valuation trajectory has accelerated significantly, climbing from $8 billion in July 2026 to $21 billion by October, while total cumulative funding has reached approximately $2.3 billion.
Summary
Cryptocurrency venture capital recovered sharply in September 2026, with total disclosed funding reaching $1.269 billion—a 71.1% month-over-month increase from August's $742 million. This recovery signals renewed institutional confidence in digital asset and blockchain-related ventures after a period of consolidation, though the September figure remains substantially below prior-year levels.

Prediction markets platform Polymarket emerged as the flagship deal of the period, securing $1 billion in growth equity funding at a post-money valuation of $21 billion. The funding round was led by 1789 Capital, the venture investment firm where Donald Trump Jr. holds a partnership stake as of 2025. Within this round, 1789 Capital's individual commitment of $300 million represented the largest single check, underscoring the firm's conviction in the prediction markets thesis and its capital deployment capability within the crypto ecosystem.

The $21 billion valuation marks aggressive growth for Polymarket, representing a 40% increase from the company's $15 billion valuation just four months earlier and a 162% jump from its $8 billion valuation recorded in July 2026. Polymarket's cumulative fundraising has reached approximately $2.3 billion to date, positioning it among the largest fintech platforms in the prediction markets and decentralized finance segments.

The participation of 1789 Capital and Trump Jr.'s involvement highlight the convergence of political networks and venture capital in crypto and blockchain-adjacent markets. This funding round reflects broader institutional capital flows into prediction markets infrastructure, which have gained prominence following regulatory clarity and increased mainstream adoption of blockchain-based applications.

Go deeper than the headline

Research every firm in this story, track the ones that matter and get the daily briefing — free for 7 days.

Start your free 7-day trial

Sources

1 outlet

AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Wublock September VC Report: Crypto VC funding rises more than 71% month over month, as Polymarket reaches a $21 billion valuation after a $300 million investment from Donald Trump Jr.'s firm