Pomegra
Nous Research closed a $90M Series B at a $1.5B valuation, led by Robot Ventures, to sell its open-source Hermes Agent to businesses that need data kept private.
Key Takeaways
- Nous Research raised a $90M Series B at a $1.5B valuation, confirmed October 7, 2026.
- Robot Ventures led. Nvidia, Union Square Ventures, Menlo Ventures, Samsung and 1789 Capital joined.
- Annualized revenue was about $36M in mid-September 2026, against a year-end target above $100M.
Lead
Nous Research, the three-year-old developer of the open-source Hermes Agent, confirmed on October 7, 2026 that it raised a $90 million Series B at a $1.5 billion valuation. Robot Ventures led the round. Nvidia, Union Square Ventures, Menlo Ventures, Samsung and 1789 Capital also participated. The money funds Hermes for Businesses, a corporate version of the agent that lets companies deploy customized AI agents for multi-step workflows while keeping their data private. Total funding now stands at about $158 million.
What Is Nous Research Selling to Enterprises?
Nous Research is selling a managed, customizable version of Hermes Agent, an open-source AI agent that developers and individual users already run themselves. Hermes for Businesses targets companies that want agents handling multi-step tasks without sending sensitive data to a closed model vendor.
The open-source version has been cloned more than 24 million times and accounts for roughly 2.5% of global AI token usage. That distribution is the company's main asset. It also sets up the central commercial question: how many of those users will pay when the free version already works for them.
How Does the $1.5B Valuation Compare With the Revenue?
The valuation is roughly 42 times the company's annualized revenue of about $36 million as of mid-September 2026, as reported by the Wall Street Journal. If Nous Research reaches its stated goal of more than $100 million by the end of the year, the multiple falls to about 15 times. That target implies revenue nearly tripling in under four months, which is a steep climb for a company whose paying base has so far been built on developer adoption rather than enterprise contracts.
The round also follows earlier reporting. In July 2026, the company was reported to be finalizing at least $75 million at the same $1.5 billion valuation, with Robot Ventures leading and Union Square Ventures participating. The final $90 million is $15 million above that floor, and the valuation did not move. Investors added capital at a fixed price rather than bidding it up.
Who Backed Nous Research Before?
Earlier backers included Paradigm, which led a $50 million Series A in April 2025, along with North Island Ventures, OSS Capital and angel investor Balaji Srinivasan. Roughly $70 million had been raised before this year. The Series B alone exceeds that combined history.
The new investor list is notably broader. Nvidia and Samsung bring hardware interests, since agent workloads consume large volumes of inference compute. 1789 Capital adds a backer with a different profile from the crypto-linked investors that dominated earlier rounds.
Why Does Open Source Matter for Enterprise Buyers?
Open source matters because enterprise buyers increasingly weigh data control against model quality. A company that can inspect and host the software behind its agents avoids some of the vendor lock-in and data-exposure concerns that slow adoption of closed systems. Nous Research is betting that this argument carries more weight in regulated and privacy-sensitive sectors.
The counterargument is straightforward. Open-source projects are easy to copy, and large cloud and model providers sell competing agent products with established sales channels and compliance certifications. Nous Research will need to show that support, customization and security guarantees justify a contract when the underlying code is free.
What Comes Next for Nous Research?
The next test is conversion. The company must turn a large installed base of developers into enterprise accounts, and the revenue figures through the end of 2026 will show whether Hermes for Businesses sells. A miss on the $100 million target would put pressure on a $1.5 billion valuation that already assumes rapid growth.
Competition is the second variable. Agent software is a crowded category, and each major model vendor is building its own enterprise offering. Nvidia's presence on the cap table may help with infrastructure access, but it does not guarantee customers.
Outlook
Nous Research enters the enterprise market with a $90 million Series B, a $1.5 billion valuation, a 24-million-clone developer base and about $36 million in annualized revenue. The July reporting and the October close show a round that grew modestly without a higher price. The company's year-end revenue will indicate whether open-source adoption converts into paid contracts at the scale the valuation requires.
