AI Series A funding is the first institutional priced round an AI startup raises after seed, typically to turn a working product into a repeatable business. In 2026 it has also become a launch vehicle for nine-figure rounds.
TL;DR
AI Funding tracked 221 AI Series A rounds dated February to October 28, 2026, totalling $8.38 billion, with a median round of $20 million. The 17 rounds of $100 million or more account for $3.58 billion, or 43% of all Series A capital, so the average round ($37.9 million) is almost double the median. The largest source-confirmed AI Series A rounds of 2026 are Hark's $700 million (led by Parkway Venture Capital) and Mind Robotics' $500 million (co-led by Accel and Andreessen Horowitz).
Key Takeaways
- 221 AI Series A rounds, $8.38B in total: AI Funding's dataset records this between February and October 28, 2026, with a median of $20M and a mean of $37.9M.
- The top 10 rounds hold 34% of the capital: $2.85B of $8.38B went to just 10 companies, led by Hark ($700M) and Mind Robotics ($500M).
- Most Series A rounds are still ordinary in size: 109 of the 221 rounds (49%) fall between $10M and $25M, and only 17 (7.7%) reach $100M.
- Enterprise AI leads on deal count, robotics on round size: Enterprise AI took 70 rounds and $2.01B, while 12 AI Robotics rounds raised $1.29B.
- Andreessen Horowitz is the most active named Series A investor: it appears on 9 rounds and led 8 of them. Lightspeed Venture Partners led all 5 of the Series A rounds it joined.
- June and July were the busiest months: they logged 42 and 52 rounds, but March raised the most money ($2.12B) because of Mind Robotics' $500M round.
What counts as an AI Series A round?
A Series A is the first priced equity round led by an institutional investor after a company's seed or pre-seed financing. For AI startups the round usually funds the move from pilot customers to a sales motion, and for model or hardware companies it funds the first serious compute or manufacturing budget.
This analysis counts every round labelled Series A in AI Funding's database with a date from February to October 28, 2026. It excludes Series A Extension, Series A+, Pre-Series A and combined Seed and Series A labels, which together cover 9 more rounds. A duplicate record for Poetic, which repeated its $50M Series A as $500M, is also excluded; the source reports $50M. Our ingestion pipeline recorded its first 2026 Series A round on February 18, so January and early February are not covered. The figures describe the deals we track, not every AI Series A worldwide.
How did AI Series A funding change month by month in 2026?
The month-by-month timeline shows a market that is busy in volume but driven by a handful of very large rounds in its dollar totals.
| Month (2026) | Rounds | Total Raised | Median Round | Largest Round |
|---|---|---|---|---|
| February | 4 | $144M | $36.5M | Humand ($66M) |
| March | 32 | $2.12B | $20.0M | Mind Robotics ($500M) |
| April | 19 | $536M | $20.0M | Sygaldry Technologies ($139M) |
| May | 26 | $1.24B | $19.0M | Hark ($700M) |
| June | 42 | $1.40B | $22.5M | Bionyra Pharma ($165M) |
| July | 52 | $1.35B | $18.5M | Prime Intellect ($130M) |
| August | 10 | $314M | $30.0M | Infinimmune ($75M) |
| September | 21 | $503M | $22.0M | Conveo ($50M) |
| October (to 28th) | 15 | $772M | $32.0M | doubleAI ($200M)* |
*doubleAI's $200M round is recorded as Series A in our data, but the source article does not name the stage.
The median has held between roughly $18M and $37M every month, even as monthly totals swung from $144M to $2.12B. That is the clearest sign that the headline numbers for AI Series A are set by outliers. March and May together raised $3.36B, 40% of the nine-month total, mostly because of two rounds.
By half-year, the first half (February to June) logged 123 rounds and $5.44B. The second half so far (July to October 28) logged 98 rounds and $2.93B. The median barely moved, from $20.0M to $20.7M. The fall in total dollars comes from fewer $100M-plus rounds, not from smaller typical rounds.
Which were the largest AI Series A rounds of 2026?
These are the largest Series A rounds in our 2026 data whose round size and stage we checked against the cited source article.
| Company | Date | Series A | Lead Investor(s) | Sector |
|---|---|---|---|---|
| Hark | 2026-05-22 | $700M | Parkway Venture Capital | Consumer AI |
| Mind Robotics | 2026-03-12 | $500M | Accel, Andreessen Horowitz | AI Robotics |
| Axiom | 2026-03-13 | $200M | Menlo Ventures | AI Security |
| Starcloud | 2026-03-30 | $170M | Benchmark, EQT Ventures | AI Infrastructure |
| TerraFirma | 2026-07-15 | $100M ($115M total raised) | Kleiner Perkins | Enterprise AI |
| General Compute | 2026-10-27 | $100M | Blackbird Ventures, Abstract Ventures | AI Infrastructure |
Three other rounds of $200M or more appear in our data with weaker confirmation. Rhoda ($450M, Khosla Ventures) has no primary source on record. doubleAI ($200M) is recorded as Series A, but the source does not name the stage. Eridu emerged from stealth with more than $200M in total funding, and its report does not break out the Series A portion.
The verified list has one pattern in common: founder or parent-company pedigree. TechCrunch reports that Hark was founded by Brett Adcock, who also founded Figure AI and Archer, and that he seeded it with $100M of his own money before the Series A. Mind Robotics was spun out of Rivian in November 2025 and is chaired by Rivian founder RJ Scaringe. For these companies, "Series A" is a label for the first outside institutional round, not a sign of an early-stage risk profile.
The other common thread is capital-intensive products. Starcloud builds data centres for orbit, and its first satellite carried an Nvidia H100. General Compute runs a cloud on non-Nvidia inference chips. Axiom trains models that produce formally verified output in the Lean proof language. Each of these companies needs hardware or compute budgets that a $20M round cannot cover.
How big is a typical AI Series A round in 2026?
The typical AI Series A round in 2026 is $10M to $25M. Nearly half of all tracked rounds fall in that band.
| Round Size | Rounds | Share of Rounds |
|---|---|---|
| Under $10M | 26 | 11.8% |
| $10M to $25M | 109 | 49.3% |
| $25M to $50M | 50 | 22.6% |
| $50M to $100M | 19 | 8.6% |
| $100M and above | 17 | 7.7% |
83.7% of AI Series A rounds in 2026 were under $50M, yet the 17 rounds of $100M or more raised $3.58B, 43% of the total. A founder benchmarking a raise should use the $20M median, not the $37.9M mean. Startups citing mega-round headlines are comparing themselves with companies whose founders, compute needs or corporate parents put them in a different category.
Which AI sectors raised the most Series A funding?
| Sector | Rounds | Total Raised | Median Round |
|---|---|---|---|
| Enterprise AI | 70 | $2.01B | $20.0M |
| AI Robotics | 12 | $1.29B | $27.0M |
| AI Infrastructure | 18 | $0.94B | $30.5M |
| Deep Tech | 27 | $0.88B | $18.5M |
| Consumer AI | 8 | $0.87B | $22.4M |
| AI Security | 14 | $0.48B | $19.0M |
| AI Healthcare | 23 | $0.46B | $16.2M |
| AI Fintech | 18 | $0.44B | $20.0M |
| AI Developer Tools | 7 | $0.37B | $27.0M |
| Climate Tech | 10 | $0.20B | $16.3M |
Enterprise AI is the volume leader: 32% of all Series A rounds, at a median right on the market's $20M. AI Robotics is the most concentrated sector. Twelve rounds raised $1.29B, but Mind Robotics alone supplied $500M of it. AI Infrastructure has the highest median ($30.5M) of any sector with more than 10 rounds, which fits its hardware-heavy cost base. Consumer AI's $0.87B is almost entirely Hark. Without that round, the other seven consumer Series A rounds raised about $170M.
AI Healthcare has the lowest median of the larger sectors ($16.2M) across 23 rounds. Clinical and regulatory milestones, not compute, set the pace of capital needs there.
Who are the most active AI Series A investors in 2026?
| Investor | Series A Rounds | As Lead | Notable 2026 Series A Deals |
|---|---|---|---|
| Andreessen Horowitz | 9 | 8 | Mind Robotics ($500M), Tessera Labs ($60M), Lassie ($35M) |
| Y Combinator | 6 | 0 | Humand ($66M), Glimpse ($35M), Prosper AI ($30M) |
| Lightspeed Venture Partners | 5 | 5 | Isembard ($50M), Nuance Labs ($50M), Sandstone ($30M) |
| Kleiner Perkins | 4 | 3 | TerraFirma ($100M Series A), Poetic ($50M), Phia ($35.5M) |
| General Catalyst | 4 | 0 | Tsuga ($35M), Geordie AI ($30M), Stacks ($23M) |
| Plural | 4 | 3 | Ore Energy ($43M), Isometric ($40M), CircuitHub ($28M) |
| Menlo Ventures | 3 | 3 | Axiom ($200M), Gimlet Labs ($80M), Nectar Social ($30M) |
| Index Ventures | 3 | 3 | Conduct ($60M), Parallel ($20M), Adfin ($18M) |
| Accel | 3 | 2 | Mind Robotics ($500M), Viktor ($75M), Tracebit ($20M) |
Two different strategies show up here. Andreessen Horowitz, Lightspeed, Menlo and Index lead almost every Series A they join. Of the 20 rounds those four firms joined between them, they led 19. Y Combinator and General Catalyst mostly follow on. YC appears on 6 Series A rounds because it holds pro-rata rights from its seed cheques in its own alumni, not because it prices the round.
Plural, the European fund, stands out with four Series A rounds concentrated in climate and industrial AI (Ore Energy, Isometric, Gigaton, CircuitHub). It is the only firm in the top tier with a clear sector thesis at Series A.
Disclosure is a major gap. 70 of the 221 rounds (31.7%) name no investor at all in our records. That share includes some of 2026's largest, such as Prime Intellect ($130M) and Foundry ($100M). Investor league tables at Series A are therefore lower bounds.
What does 2026 tell founders raising an AI Series A?
Four points stand out in the data:
- Benchmark against the median. $20M is the 2026 AI Series A median, and the middle half of rounds sits between roughly $13M and $35M.
- Mega Series A rounds are a separate market. Every source-verified round of $100M or more went to a company with a hardware, compute or heavy-model cost base (Starcloud, General Compute, Axiom, TerraFirma's remote-operated machinery) or with a famous founder or corporate parent behind it (Hark, Mind Robotics).
- Lead-heavy firms are the ones to target. Andreessen Horowitz, Lightspeed, Menlo and Index led 19 of the 20 Series A rounds they joined. Getting one of them to price the round sets the rest of the syndicate.
- Second-half volume is down, not prices. The July–October period has fewer $100M-plus rounds, but the median round size held at about $20M.
FAQ
How much is a typical AI Series A round in 2026?
The median AI Series A round in 2026 is $20 million across 221 rounds tracked by AI Funding from February to October 28. About 49% of rounds fall between $10M and $25M, and only 7.7% reach $100M or more.
What is the largest AI Series A round of 2026?
Hark's $700 million Series A, announced in May 2026 and led by Parkway Venture Capital with Nvidia, AMD Ventures, ARK Invest and others participating, is the largest source-confirmed AI Series A in our 2026 data. Mind Robotics' $500 million round, co-led by Accel and Andreessen Horowitz, is second.
Which VCs lead the most AI Series A rounds?
Andreessen Horowitz led 8 of the 9 AI Series A rounds it joined in 2026, the most of any firm. Lightspeed Venture Partners led all 5 of its Series A rounds, and Menlo Ventures and Index Ventures each led 3.
Which AI sector gets the most Series A funding?
Enterprise AI received the most AI Series A funding in 2026, with 70 rounds totalling $2.01 billion. AI Robotics ranked second on dollars ($1.29B across 12 rounds), driven mainly by Mind Robotics' $500M round.
Sources
- TechCrunch: Hark raises $700M Series A for its secretive universal AI interface
- TechCrunch: Rivian spinout Mind Robotics raises $500M Series A
- SiliconANGLE: Verifiable AI startup Axiom raises $200M
- TechCrunch: Starcloud raises $170M Series A to build data centers in space
- TechCrunch: General Compute raises $100M Series A
- SiliconANGLE: Construction automation startup TerraFirma raises $115M
- Tech Funding News: Poetic lands $50M from Kleiner Perkins and OpenAI
- Tech Funding News: Eridu emerges from stealth with $200M for AI networking
Every 2026 AI Series A round in this analysis is listed with its investors and source on the AI Funding deals feed and company pages at aifunding.me, which update as new rounds are ingested.
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