Large Series A Funding Rounds Are Growing More Common

Hot startups are commanding substantially larger Series A funding rounds.

According to Crunchbase figures, global startups have closed at least 114 Series A financing events1 of $100 million or more so far this year. This represents the highest yearly total in recent history, keeping the metric on pace to surpass its historical peak.

Furthermore, many of these oversized early-stage investments push well past the $100 million mark. Together, this cohort of Series A beneficiaries has pulled in approximately $33 billion this year alone, featuring at least 12 individual rounds valued at $500 million or greater.

An AI thing

This surge in capital is primarily an artificial intelligence-driven trend. Crunchbase statistics indicate that upward of 70% of Series A rounds totaling $100 million or more were awarded to AI-centric startups.

This percentage captures some of the most substantial early-stage transactions of the year. Notable examples include a $1.2 billion investment in Silicon Valley-based River AI—a developer platform designed for training and serving custom models—and a $900 million round for China-based Xpeng Robotics, which builds AI-powered humanoid robots.

Below, we put together a sample of 10 of the largest Series A rounds, including mostly AI but a few other areas as well.

The heavy concentration of AI transactions mirrors broader market trends across all development stages. During the first half of this year, venture capital and growth investments directed toward artificial intelligence startups reached an estimated $394 billion, accounting for roughly 77% of all invested capital. While the majority of that sum went toward later-stage deals, the Series A metrics demonstrate that early-stage funding follows a similar trajectory regarding AI’s market share.

US leads for jumbo Series A deals.

Crunchbase data reveals that approximately half of this year’s Series A rounds and total capital exceeding $100 million went to startups headquartered in the United States. This accounts for roughly 62 transactions carrying a combined value of approximately $15 billion thus far in 2026, setting the region on course for a record-breaking sum.

Nevertheless, Series A megarounds are spread out more globally than general venture investments this year. Throughout the first half of 2026, over three-quarters of all global funding—from seed through growth phases—was captured by American enterprises, largely driven by massive rounds for Silicon Valley entities like Anthropic and OpenAI.

When investors like the same things

Several factors beyond the expansion of AI help explain the growing frequency of Series A megarounds. Most prominently, leading venture investors possess exceptionally large pools of capital ready for deployment. Moreover, historical and recent exit multiples heavily reward investors who display bold, ambitious strategies rather than modest ones.

At the Series A stage, another driver may be an unusual level of consensus among investors regarding the specific industries, business models, and founding teams worth supporting. Because paying a premium price for a winning asset remains preferable to securing a discounted stake in an underperformer, financial backers are aggressively funding perceived early-stage frontrunners.

Related Crunchbase queries:

• Global 2026 Series A Rounds Of $100M+
• Sample List Of Large 2026 Series A

Related reading:

• Crunchbase Data: Global Startup Investment Hit Record $510B in H1 2026 As AI Boom Accelerates Funding And Exits

Illustration: Dom Guzman

Frequently Asked Questions

How many $100M+ Series A rounds have global startups secured this year?

Global startups have secured at least 114 Series A rounds of $100 million or more so far this year, according to Crunchbase data.

What primary factor is driving the rise in jumbo Series A rounds?

The funding increase is largely driven by artificial intelligence, with more than 70% of Series A rounds of $100 million or more going to AI-focused startups.

What percentage of Series A funding goes to U.S.-based startups?

Roughly half of this year’s $100 million-plus Series A rounds and funding went to U.S.-based startups, translating to about 62 deals totaling around $15 billion.

How much total capital have these jumbo Series A recipients raised collectively?

This group of Series A recipients has collectively raised around $33 billion this year, with at least 12 rounds valued at $500 million or more.