SignalbaseUpdated 15 Sept 2026

Top recently funded startups in United States, week of 2026-04-13

United States logged 98 verified funding rounds in the week ending 12 Apr 2026, totalling ≈$119.4B. OpenAI anchors the week with a ≈$110.0B late-stage venture in Research Services. Technology, Information and Media was the busiest sector with 24 deals.

Week of 2026-04-13United States98 deals≈$119.4B raised

Country	United States
Deals this week	98
Total raised	≈$119.4B
Top sector	Technology, Information and Media (24)
Most common round	Seed (23)
Most active investor	Y Combinator (4 deals)
Sources tracked	345

The biggest 5 deals this week

#	Company	Amount	Round	Sector	Announced
1	OpenAI	$110.0B	late-stage venture	Research Services	27 Feb 2026
2	Court Square Ventures	$3.8B	private equity fund	Venture Capital	09 Apr 2026
3	ClearStar, Inc.	$850.0M	—	Human Resources	09 Apr 2026
4	Sedron Technologies	$500.0M	—	Environmental Services	09 Apr 2026
5	Vero Networks	$425.0M	debt	Telecommunications	06 Apr 2026

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93 more funding rounds this week

SiFive, MicroStrategy, Saphlux LLC, ALSO., Zando, Four Corners Development Group, Hermeus, Forte Biosciences, Inc. and 85 more closed rounds this week. Sign up to see amounts, round types, sectors and investor lists.

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Closer look at the top 3

OpenAI

Announced 27 Feb 2026

$110.0B · late-stage venture · Research Services · United States

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity.

“OpenAI - Wikipedia Jump to content Main menu Main menu move to sidebar hide Navigation Main page Contents Current events Random article About Wikipedia Contact us Contribute Help Learn to edit Community portal Recent changes Upload file Special pages Print/export Download as PDF Printable version In other projects Wikimedia Commons Wikidata item Se”
From the announcement · 09 Apr 2026

6 more sources tracked. Read the full press release and reporter coverage.

Investors: Amazon (lead), SoftBank (lead), NVIDIA (lead).

Court Square Ventures

Announced 09 Apr 2026

$3.8B · private equity fund · Venture Capital · United States

“Home | Court Square Skip Navigation Overview About Value Creation Founders Council Responsibility Portfolio Team Media Contact LP Login (opens in new window) Menu Court Square has been building middle market companies for more than 40 years.”

Most active investors this week

#	Investor	Deals
1	Y Combinator	4
2	Intel Capital	2
3	NVIDIA	2
4	Sutter Hill Ventures	2
5	415 Capital	1
6	8VC	1
7	A16Z	1
8	ACME Capital	1
9	Addition	1
10	Airtree	1

What this week tells us

Technology, Information and Media accounted for 24 of 98 verified deals in United States this week. The stage mix was 34 early-stage (pre-seed to seed) against 64 Series A or later. Y Combinator was the most active investor, backing 4 of the week's rounds.