Which were the biggest rounds Accel backed in 2026, and what can founders learn from them? The largest were in AI, defense and security companies that were already growing fast. Anthropic’s $30 billion Series G was the biggest by far. But the rounds Accel led, such as Legora, Armadin, Basis and Fractile, show more about how the firm works. Accel rarely shares the size of its own checks, so the amounts in this article are the full round sizes.
This article covers Accel’s biggest 2026 deals, the rounds it led and the themes behind them. It also covers what founders and employees can learn about equity and their cap table.
Key Takeaways
- Accel’s largest 2026 deal was Anthropic’s $30 billion Series G at a $380 billion post-money valuation.
- Accel co-led Cognition’s $2 billion-plus Series E and led Legora’s $550 million Series D.
- Among the largest rounds after Anthropic were AI, defense and security companies.
- Valuations at several Accel portfolio companies doubled within months, which makes frequent 409A and cap table reviews essential.
Why 2026 Is a Big Year for Accel
Accel raised fresh money during 2026 and put it to work quickly. In April it announced about $5 billion in new funds, including a $4 billion Leaders fund for big, late-stage deals. In August it added $3.5 billion across four early-stage funds. These cover the US, Europe and Israel, India, and a global fund.
The value of its portfolio companies also rose quickly. Lovable went from $6.6 billion to $13.3 billion between its December and August rounds. Higgsfield grew about four times in six months, to $5.4 billion. Linear went from $1.25 billion to $2.5 billion, and Cyera went from $9 billion in January to $12 billion in June. Much of this came from strong revenue growth. Anthropic, for example, reported a $14 billion run-rate when it raised.
Accel’s Biggest 2026 Investments
Accel backed some of the largest rounds of 2026, from Anthropic’s $30 billion Series G to defense, security and software companies at earlier stages. The ten rounds below were the largest we confirmed. In each one, a company release or published report names Accel as an investor. The sizes are whole round sizes as announced, not Accel’s own checks, which are not disclosed.
- Anthropic, $30 billion Series G (February). GIC and Coatue led the round, and Accel is one of the significant investors named. The post-money valuation was $380 billion.
- Cognition, $2 billion-plus Series E (September). Andreessen Horowitz and Accel led the round at a $48 billion valuation.
- Helsing, $1.8 billion Series E (July). The European defense company raised at an $18 billion valuation. Accel took part as an existing investor.
- Wonder, $650 million Series D (July). Accel returned, along with GV and NEA, at a $9 billion pre-money valuation.
- Cyera, $600 million Series G (June). Evolution Equity Partners led the round. Accel took part as an existing investor, and the valuation was $12 billion.
- True Anomaly, $650 million Series D (April). The company says $50 million of this is debt, so the equity is about $600 million.
- Legora, $550 million Series D (March). Accel led the round. The reported valuation was $5.55 billion.
- Supabase, $500 million Series F (June). GIC led the round at a $10.5 billion valuation, and all existing investors took part.
- Mind Robotics, $500 million Series A (March). Accel and Andreessen Horowitz co-led the round at a $2 billion valuation.
- Rapido, $730 million primary and secondary financing (May). Prosus led the round at a $3 billion valuation. It included $240 million of fresh capital.
Where Accel Led the Round
Backing a round is different from setting its terms. Accel was reported as a lead or co-lead in seven rounds across six companies, meaning it carried the round rather than joining one that others had assembled.
| Company | Round | Size | Valuation | Accel’s role |
|---|---|---|---|---|
| Cognition | Series E, Sep | $2B+ | $48B | Co-lead with a16z |
| Legora | Series D, Mar | $550M | $5.55B | Lead |
| Mind Robotics | Series A, Mar | $500M | $2B | Co-lead with a16z |
| Fractile | Series B, May | $220M | Not disclosed | Co-lead with Factorial Funds and Founders Fund |
| Armadin | Seed and Series A, Mar | $189.9M | Not disclosed | Lead |
| Armadin | Series B, Oct | $255.5M | $2.5B+ | Co-lead with a16z |
| Basis | Series B, Feb | $100M | $1.15B | Lead |
Armadin needs careful reading: its $189.9 million in March combined a $24 million seed with a Series A, so it was not a single round, and it raised again in October with a $255.5 million Series B, which a16z and Accel co-led. Accel also took part in Linear’s $99 million tender offer, which paid employees rather than funding the company, so it is a liquidity event, not growth capital.
Why the Lead Investor Matters for Founders
In our experience, the difference between a lead and a participant shapes the cap table more than the headline amount does. The lead usually negotiates the price per share, the liquidation preference, the size of the option pool and the board composition. Other investors in the round typically accept those terms. When Accel led Legora’s Series D or Armadin’s launch round, it likely set the reference terms that later investors in those companies will measure themselves against.
Existing investors such as Accel at Helsing, Cyera and Wonder play a different role. They often exercise pro rata rights to keep their percentage, which means part of a new round goes to current holders rather than new money. For founders, that is useful to model separately, because it affects how much of the round new investors actually take and how much board influence changes hands.
Four Themes Behind the Deals
- AI infrastructure and software: Cognition, Supabase and Fractile sit beneath or around the models themselves, and Legora and Basis apply AI to law and accounting. Accel is betting on the tools and the workflows, not only the model builders.
- Defense and security: Helsing and True Anomaly together raised about $2.45 billion, and Cyera’s $600 million round kept security in the picture. These are capital-heavy businesses, which can mean larger rounds and more dilution per round than a software company would see.
- Robotics and hardware: Mind Robotics and Fractile show Accel backing companies that must build physical products. Hardware companies can need more capital earlier, so founders there should model several rounds ahead.
- Global reach: The deals span the US, the UK, Sweden, Germany and India. Rapido is India’s headline deal, and Accel’s dedicated India and Europe-and-Israel funds suggest the regional bets will continue. Cross-border cap tables bring their own complexity in share classes, tax and reporting.
How to Read a Funding Headline
Four checks save founders from comparing the wrong numbers. First, confirm whether the valuation is pre-money or post-money, because Wonder’s $9 billion was pre-money while Legora’s $5.55 billion was reported without that distinction. Second, separate equity from debt, as True Anomaly’s release does. Third, look for secondary components, as in Rapido’s mixed financing and Linear’s tender. Fourth, check whether a total combines several rounds, as Armadin’s does.
Dates need the same care. Announcement dates, closing dates and the dates of press coverage can differ by days or weeks, which is why this article gives months for most deals. If you are benchmarking your own round against these companies, use the terms in the primary release, not a database summary.
What Fast Repricing Means for Your Cap Table
- Check the value of your shares often: When a company’s valuation doubles, a 1% stake goes from $12.5 million to $25 million on paper, as it did at Linear. This is true for every shareholder, which is why employees start asking about their options after a big funding round. Keep your records up to date so you can give them accurate answers.
- Update your 409A after big events: US tax rules say an old valuation is no longer reliable if new information could change the company’s value, or if it is more than 12 months old. A new priced round at double the old valuation is exactly that kind of event. Granting options at an outdated strike price can cause tax problems for employees.
- Work out dilution before you sign: Wonder’s $650 million round came at a 9 billion pre-money valuation, so the new investors took about 6.7% (650M ÷ $9.65B post-money). A $400 million round at a $13.3 billion post-money valuation would take about 3.0%. Run each case with the option pool included, because the pool often comes out of existing holders’ shares.
- Record share sales by existing holders: Linear’s $99 million tender offer was about 4% of its $2.5 billion valuation. The money went to employees, not the company. A tender offer changes who owns shares without adding cash to the company, so write down who sold, how many shares, at what price and in which share class.
Example: Suppose a founder holds 40% before a round that sells 6.7% of the company. After the round the founder holds 37.3% (40% × 0.933). If the company then adds an option pool equal to 3% of the post-round company, the founder falls to about 36.2% (37.3% × 0.97). The numbers are hypothetical, but the pattern is the one founders see at every priced round.
| Step | Founder ownership | What changed |
|---|---|---|
| Before the round | 40.00% | Starting position |
| After the new money (6.7% sold) | 37.30% | New investors join |
| After a 3% pool top-up | 36.20% | More options reserved for hiring |
FAQs
Here are quick answers to common questions about Accel’s 2026 deals and what they mean for your cap table.
The largest was Anthropic’s $30 billion Series G, announced in February at a $380 billion post-money valuation.
No. GIC and Coatue led it, and D. E. Shaw Ventures, Dragoneer, Founders Fund, ICONIQ and MGX co-led. Accel is named among the significant investors, and the amount it contributed was not disclosed.
Accel co-led Cognition’s Series E with Andreessen Horowitz, led Legora’s $550 million Series D, co-led Mind Robotics’ Series A, and led Armadin.
Headlines can bundle different instruments. True Anomaly’s $650 million includes $50 million of debt, and Armadin’s $189.9 million combines a seed round with a Series A. Check what a figure includes before comparing it.
Divide the new money by the post-money valuation, then add any option pool increase. A $650 million investment at a $9 billion pre-money valuation buys about 6.7% of the company after the round.
A tender offer lets existing shareholders, usually employees and early investors, sell shares to new or current investors. The company receives no cash, but the ownership records change, so it must be recorded on the cap table.
Your Equity Should Be Ready Before the Round Is
Accel spent 2026 backing frontier AI, AI software, defense and security, from Anthropic and Cognition to Helsing and Cyera. The bigger lesson for everyone else is what those rounds do to a company’s ownership table and to the price of its stock. You don’t need a mega-round to run into that. Every priced round changes who owns what and what common stock is worth, and it is much easier to handle when your records are clean and your valuation is current before the term sheet arrives.
That is where Eqvista can help. It puts cap table management and 409A valuations in one place, so you can model a new round, see who owns what and keep option pricing up to date as your company grows. Take a look at the Eqvista services and get your cap table ready for the next round.
