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California-based companies have announced $366 billion in venture funding since the start of 2026, a state record as of Aug. 20. OpenAI and Anthropic supplied more than half of that total through a handful of rounds. Most of the money came from megadeals rather than a broad increase in funding across the startup market.
What Changed
- California-based companies announced $366 billion in venture funding through Aug. 20, 2026, nearly twice the state’s previous record.
- OpenAI and Anthropic raised $217 billion combined, about 59% of California’s announced total.
- Megadeals of at least $100 million captured 87.5% of U.S. venture funding in the first half of 2026.
- Proposition 40 would impose a one-time 5% tax on an estimated 200 California billionaires.
AI-generated summary, reviewed by an editor. More on our AI guidelines.
A statewide record
The Aug. 20 tally is more than three times the venture funding announced across the other 49 states combined. It is also nearly double California’s previous record, set in 2025. New York ranked second with $27 billion in deals announced from Jan. 1 through Aug. 20, 2026.
More than 4,000 California startups had raised capital in 2026 by Aug. 20. Recent financings outside the two largest AI labs included a $1.37 billion Series D for Torrance-based manufacturer Hadrian on Aug. 6 and a $545 million Series G for live-shopping platform Whatnot on Aug. 7. The financings covered industrial manufacturing and live-shopping services.
Two labs take the lead
OpenAI raised $122 billion in March 2026. Anthropic raised $30 billion in February and another $65 billion in May. Their combined $217 billion represented about 59% of California’s announced total as of Aug. 20.
The same companies dominated AI financing worldwide. AI startups raised more than $407 billion during the first half of 2026, with OpenAI and Anthropic collecting more than half. Companies building applications on top of AI models accounted for 62.9% of AI deal count during that period but received only 12.9% of the capital.
The concentration of capital in proprietary frontier-model companies carries product risk. Moonshot AI released its cheaper Kimi K3 model as Nvidia, Microsoft, Meta and Andreessen Horowitz backed wider use of open-weight models. OpenAI and Anthropic have argued that releasing model weights can create safety risks. Both labs have also increased revenue and model performance since China’s DeepSeek rattled investors in early 2025.
The market beneath the total
U.S. venture deals reached $412.7 billion during the first half of 2026. Megadeals of at least $100 million captured 87.5% of that amount. First-time fund formation was on pace for its lowest annual level since 2016.
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Seed and angel funding totaled about $4.9 billion in the second quarter of 2026, down 15% from the first quarter and 27% from a year earlier.
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The $366 billion figure covers announced financings tracked by PitchBook as of Aug. 20. It does not establish broad strength across every startup stage.
Tax revenue and the ballot
California collected about $147 billion in personal-income taxes for the fiscal year that ended June 30, 2026, above the $126 billion forecast made in May 2025. Rising technology shares and higher worker compensation contributed to the gain. Future AI-company listings could produce more capital-gains revenue, though those taxes depend on exits that have not occurred.
Proposition 40, on the November 2026 ballot, would impose a one-time 5% tax on an estimated 200 Californians whose net worth exceeded $1 billion at the start of the year. Its sponsor projects about $100 billion over five years, mainly for health care. Opponents say wealthy residents could leave and reduce annual income-tax collections. Supporters point to federal Medicaid cuts and the strain on California clinics.
Venture funding continued toward Silicon Valley despite uncertainty over the proposed tax. Enrico Moretti, a University of California at Berkeley economist who studies the geography of jobs, said: “It’s an amount of agglomeration that surpasses even previous waves.”
Frequently Asked Questions
How much venture funding did California companies announce in 2026?
California-based companies announced about $366 billion from Jan. 1 through Aug. 20, 2026. The total was nearly twice California’s previous record and more than three times the amount announced across the other 49 states combined.
How much of the total came from OpenAI and Anthropic?
OpenAI raised $122 billion in March 2026. Anthropic raised $30 billion in February and $65 billion in May. Their combined $217 billion represented about 59% of California’s announced total as of Aug. 20.
Does the record show broad strength across the startup market?
No. Megadeals of at least $100 million captured 87.5% of U.S. venture funding in the first half of 2026, while second-quarter seed and angel funding fell 15% from the first quarter and 27% from a year earlier.
What would California’s Proposition 40 do?
Proposition 40 would impose a one-time 5% tax on an estimated 200 Californians whose net worth exceeded $1 billion at the start of 2026. Its sponsor projects about $100 billion over five years, mainly for health care.
AI-generated summary, reviewed by an editor. More on our AI guidelines.
Marcus Schuler
Editor-in-Chief and founder of Implicator.ai. Former ARD correspondent and senior broadcast journalist with 10+ years covering tech. Writes daily briefings on policy and market developments. Based in San Francisco. E-mail: editor@implicator.ai
