Typical seed round size for deep tech startups in the US

Based on 55 Form D filings by United States deep tech issuers at seed stage, filed Nov 2024 – Oct 2026. Updated monthly. Change any segment to compare.

The numbers

  • Median seed raise: $2.6M
  • Middle half of rounds: $1.3M – $4.8M
  • Filings in sample: 55
  • Rounds under $1M: 16%
  • Rounds over $5M: 22%
  • Updated Oct 2026

Read this number carefully

Form D undercounts small SAFE rounds and rounds that rely on other exemptions. Treat the median as a ceiling for "typical", not a target.

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