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Research·September 25, 2026·7 min read

Megadeals took 87.5% of H1 2026's $412.7 billion in venture capital. If your last round wasn't one, the market looks nothing like the headline.

PitchBook-NVCA's H1 2026 data: megadeals took 87.5% of $412.7B in VC, and three firms took 48.1% of new fund capital. What that means outside the top tier.

US startups raised more than $412.7 billion in the first half of 2026, already ahead of all of 2025 on six months of activity, and every headline built on that number is true. What most of those headlines skip is where the money actually landed: 87.5% of it went into rounds of $100 million or more, and three venture firms captured 48.1% of every dollar raised into a new fund. If your company's last round wasn't a nine-figure check from Andreessen Horowitz, Thrive Capital, or Founders Fund, the funding market you are actually operating in is thinner than the number on the front page.

The number behind the number

PitchBook and NVCA's Q2 2026 Venture Monitor, covering data through June 30, 2026, put megadeal share at 87.5% of the $412.7 billion deployed in H1 2026, itself already ahead of 2025's full-year total. Deals under $100 million drew just $51.4 billion, and their share of total deal value has compressed every year since: 43.8% in 2024, 33.1% in 2025, 12.5% this year. Q2 alone saw seven rounds at or above $1 billion, from Anthropic, Prometheus Industries, Anduril Industries, Baseten, MiRus, Kalshi, and Cognition, totaling $87.2 billion between them. Five of the seven were AI companies. Anthropic's own round, a $65 billion raise, marked a 157.1% pre-money step-up to $900 billion from $350 billion three months earlier.

AI took 86% of it, and everything else shrank to make room

Of the $412.7 billion deployed, AI companies took $355.9 billion, 86% of every venture dollar in the first half of the year. That leaves roughly $56.8 billion for every non-AI sector combined, across six months and the entire US economy. If your product is AI-native, that sounds like tailwind. It is, for the handful of companies closing the rounds this figure describes. For everyone else building in the category, it means the capital that used to spread across a wider field of AI bets is now stacking into fewer, larger ones, and the gap between "funded" and "funded at the scale this report is describing" is wider than it was a year ago.

Three firms wrote nearly half of new fund capital

The concentration isn't only in where dollars went into startups, it shows up one layer up, in who raised the funds doing the investing. Andreessen Horowitz raised $14.2 billion across seven funds in H1 2026, Thrive Capital raised $10 billion across two, and Founders Fund raised $10.6 billion across two. Together those three firms took in $34.8 billion, 48.1% of all capital raised into new US venture funds in the period. Experienced firms overall captured 89% of new fund capital, the highest share NVCA has recorded in a decade, while first-time funds raised only $3.4 billion across 53 vehicles, an annualized pace well below the $11.4 billion they raised across all of 2025. A large fund can afford to write a huge early check before a category's valuations climb; a first-time or emerging manager competing for a smaller slice of a pricier round increasingly can't.

What this costs a funded team outside the top tier

The same report found median Series A pre-money valuations up 89.9% relative to 2021, and Series B up 83.3%. Read those two findings together and a real risk shows up: a company's valuation can look excellent on paper while the pool of capital actually available to fund its next round, outside the megadeal tier, keeps compressing. A valuation is what investors expect the company to become. It is not cash sitting in the operating account, and treating the two as interchangeable is how a funded team plans a hiring cycle around a next round that takes longer to close than the last one, or doesn't close on the terms assumed. That is a planning problem before it is a headcount problem: a squad-sized hiring plan built on "we'll obviously raise again by Q3" carries more risk this year than the same plan carried in 2024, whatever the top-line total says about the market being flush.

The same concentration shows up in the talent, not just the money. The report's own read on where AI value creation is happening ties directly back to headcount: the talent that can build at the frontier is scarce and clustered on the West Coast, particularly the Bay Area, so as long as capital keeps following that talent, value creation in AI is likely to stay geographically concentrated too. That means the competition for the same senior engineers, in the same handful of zip codes, does not ease just because the aggregate funding total hit a record. A wider pool of dollars would spread that competition out. A narrower one, concentrated in fewer, bigger rounds, keeps it exactly where it already was.

A worked example

Picture a 35-person, Bay Area, Series A computer-vision company that closed an $18 million round in Q1 2026. On paper, the round looks strong against 2021 comparables, and the board has signed off on adding two senior ML engineers before Q4 to hit a roadmap commitment made to a design partner. Nine weeks into a full-cycle search, one offer has already fallen through to a competing offer from a company running its own AI hiring push, and the recruiting pipeline shows no clear finish line. The board's underlying assumption, that the company can staff up now and let the next round settle the economics later, is exactly the assumption this year's funding data makes riskier than it looked eighteen months ago. Bringing in a senior engineer on staff-aug terms for the specific roadmap item, rather than widening a slow perm search sized for a team the next round hasn't actually funded yet, keeps the commitment sized to the capital that is confirmed rather than the capital the board is hoping arrives on schedule.

Where this fits, and where it doesn't

If your company closed one of the megadeal-tier rounds this quarter, or is otherwise sitting on two or more years of runway from a raise at that scale, this posture is not for you. You can afford a slow, fully in-house build, and there's a real argument that you should: ownership, culture, and institutional knowledge compound differently when headcount isn't rationed. This is written for the much larger group of funded companies whose last round was real money and a real story, just not nine figures, who are reading a headline about a flush market while their own next fundraising conversation doesn't feel that way at all.

If your team is watching the gap between the aggregate funding numbers and what your own round actually bought you, that gap is exactly what a staff-aug engagement is built to absorb: senior engineers sized to a confirmed roadmap item rather than a headcount plan that assumes the next round lands on schedule. Our Silicon Valley team scopes exactly that kind of engagement under build your team; talk to us about what your current round can actually support before you size the next hire.

Sources

Frequently asked questions.

PitchBook and NVCA's Q2 2026 Venture Monitor, covering data through June 30, 2026, found that megadeals of 100 million or more made up 87.5% of all US venture capital deployed in the first half of 2026. Deals under that size made up just 12.5% of total deal value, down from 33.1% in 2025 and 43.8% in 2024.

AI companies took 86% of every venture dollar deployed in the first half of 2026, per the July 2026 PitchBook-NVCA Venture Monitor. That leaves roughly 14% of total deal value for every non-AI sector combined, across the same six-month window.

Yes. PitchBook-NVCA’s Q2 2026 report found that three firms, Andreessen Horowitz, Thrive Capital, and Founders Fund, took in 48.1% of all capital raised into new US venture funds in the first half of 2026. Experienced firms overall captured 89% of new fund capital, the highest share NVCA has recorded in a decade.

Not necessarily. The same Q2 2026 Venture Monitor found median Series A pre-money valuations up 89.9% relative to 2021, and Series B up 83.3%, even as the share of capital reaching deals outside the megadeal tier compressed to 12.5% of total value. A higher valuation reflects investor expectations, not cash in the bank, and the two can move in opposite directions in the same funding cycle.

Treat the next fundraise as less certain than the last one, not because anything went wrong, but because H1 2026's funding got more concentrated, not less. That favors senior hires who can be resourced quickly against a specific roadmap item over a slow, fixed-cost search sized for a squad, so the team isn't carrying commitments a delayed round can't support.