SignalbaseUpdated 21 Sept 2026

Top recently funded startups in United States, week of 2025-05-26

United States logged 26 verified funding rounds in the week ending 25 May 2025, totalling ≈$806.2M. Lemonade anchors the week with a ≈$319.0M ipo in Insurance. Software Development was the busiest sector with 5 deals.

Week of 2025-05-26United States26 deals≈$806.2M raised

Country	United States
Deals this week	26
Total raised	≈$806.2M
Top sector	Software Development (5)
Most common round	Seed (11)
Most active investor	Y Combinator (5 deals)
Sources tracked	67

The biggest 5 deals this week

#	Company	Amount	Round	Sector	Announced
1	Lemonade	$319.0M	ipo	Insurance	01 Jul 2020
2	LMArena	$100.0M	Seed	Artificial Intelligence	01 May 2025
3	Monarch Sign Factory	$75.0M	Series B	Manufacturing	23 May 2025
4	Rad AI	$50.0M	equity	Software Development	07 May 2024
5	EBR Systems, Inc.	$35.0M	Series C	Hospitals and Health Care	12 Jun 2008

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21 more funding rounds this week

Red Salon, Blackfin Partners, David AI, ClairMail Inc., Core Capital Partners, Breach Security, Rhino Federated Computing, Coworker and 13 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

Lemonade

Announced 01 Jul 2020

$319.0M · ipo · Insurance · United States

Our mission is to become the most loved insurance company in the world.

“Lemonade Inc. - Hey investors, welcome home! Skip to main content Renters Homeowners Car Pet Life Giveback My Account Feed Feed Quarterly Results News Events Stock Info Filings Governance Founders’ Letter FAQs Welcome home. Lemonade delivers AI-powered renters, pet, car, homeowners, and life insurance across the US and EU.”
From the announcement · 01 Jul 2020

1 more source tracked. Read the full press release and reporter coverage.

LMArena

Announced 01 May 2025

$100.0M · Seed · Artificial Intelligence · United States

Created by researchers from UC Berkeley, LMArena is an open platform where everyone can easily access, explore, and interact with the world’s leading AI models.

“LMArena Secures $100M in Seed Funding to Bring Scientific Rigor to AI Reliability Accessibility Statement Skip Navigation Resources Investor Relations Journalists Agencies Client Login Send a Release News Products Contact Search Search When typing in this field, a list of search results will appear and be automatically updated as you type.”

Most active investors this week

#	Investor	Deals
1	Y Combinator	5
2	BoxGroup	2
3	F-Prime	2
4	Lightbank	2
5	Pear VC	2
6	SignalFire	2
7	1864 Fund	1
8	2048 Ventures	1
9	A16Z	1
10	Abstract Ventures	1

What this week tells us

Software Development accounted for 5 of 26 verified deals in United States this week. The stage mix was 12 early-stage (pre-seed to seed) against 14 Series A or later. Y Combinator was the most active investor, backing 5 of the week's rounds.

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Built from 26 verified funding signals tracked by Signalbase. Window: 19 May – 25 May 2025. Last refresh: 21 Sept 2026.