Biggest startup funding rounds in March 2026
The largest startup rounds announced in March 2026, ranked by round size.
Rounds ranked11
Combined$129.16bn
Median$500m
- 1OpenAIGrowth AI · San Francisco · 31 Mar · led by SoftBank, Andreessen Horowitz · $852bn valuation$122bn
- 2Shield AISeries D+ Defence & space · San Diego · 26 Mar · led by Advent International, JPMorganChase Strategic Investment Group · $12.7bn valuation$2bn
- 3NscaleSeries C AI · London · 9 Mar · led by Aker, 8090 Industries · $14.6bn valuation$2bn
- 4AMI LabsSeed AI · Paris · 9 Mar · led by Cathay Innovation, Greycroft$1.03bn
- 5LegoraSeries D+ Legal & compliance · Stockholm · 10 Mar · led by Accel · $5.55bn valuation$550m
- 6Mind RoboticsSeries A Robotics & hardware · Palo Alto · 11 Mar · led by Accel, Andreessen Horowitz · $2bn valuation$500m
- 7RebellionsSeries D+ Robotics & hardware · Seoul · 30 Mar · led by Mirae Asset Financial Group, Korea National Growth Fund · $2.34bn valuation$400m
- 8Kandou AISeries A Robotics & hardware · Saint-Sulpice · 23 Mar · led by Maverick Silicon$225m
- 9HalterSeries D+ Robotics & hardware · Auckland · 24 Mar · led by Founders Fund · $2bn valuation$220m
- 10UaláGrowth Fintech · Argentina · 4 Mar · led by Allianz X · $3.2bn valuation$197m
- 11PAVE SpaceSeed Defence & space · Lausanne · 25 Mar · led by Visionaries Club, Creandum$40m
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