The Biggest Startup Capital Raises - Week 37, 2026 (SEC Form D)

47 operating-company raises totalling $1.1B surfaced in SEC Form D filings (September 10-11, 2026). The top 10, ranked - days before the press.

Every week, companies quietly disclose fresh capital raises in SEC Form D filings - often days before (and frequently without) any press coverage. We pull the filings straight from EDGAR, filter out pooled investment funds (the hedge/PE/VC noise that makes up most Form D volume), and rank what is left: the real operating-company startup-funding signal.

This window (September 10-11, 2026): 47 qualifying raises, $1.1B in disclosed capital.

Top 10 by amount raised

# Company Sold to date Industry State Score
1 Harvey AI Corp $550.3M Other Technology California 100
2 KRIV Holdings, L.P. $133.7M Business Services NEW YORK 79
3 Alzheon, INC. $78.8M Biotechnology Massachusetts 90
4 Factor Seed LLC $52.2M Other Banking And Financial Services UTAH 86
5 Qualia Labs, Inc. $50.0M Other Technology California 83
6 Cube Security Inc. $48.5M Other Technology California 83
7 Nuveen Farmland REIT $34.7M Reits And Finance NEW YORK 89
8 Frontier Z 1 LLC $30.0M Other Delaware 83
9 Nexus Networks, Inc. $26.4M Other Technology California 83
10 Atari Interactive, Inc. $16.2M Other Technology NEW YORK 75

Score = size × freshness × type (0-100). Every row in the full report links to the original SEC filing.

The headline raise: Harvey AI Corp

Harvey AI Corp reported $550.3M raised across 28 investors (Other Technology, California). Disclosed executives / related persons include Winston Weinberg, Gabriel Pereyra, Pat Grady. As always with Form D: amounts are self-reported by the issuer, and a filing is a disclosure - not an endorsement.

Get the full picture

Data source: official SEC EDGAR Form D. This is data and research, not investment advice.


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