AI Startups to Watch (Sep 28): Instinct, Tekever & OpenEvidence
AI startups news for Sep 28, 2026: Instinct quadruples to a $10B valuation, Tekever raises $580M, and OpenEvidence takes $250M from hospitals.
Two funding stories set the tone for today's AI startups news: a consumer agent company that quadrupled its valuation in a month, and a Portuguese drone maker that raised $580 million to arm Europe. Add a clinical AI company taking money from hospital systems plus two European rounds, and you have a day where capital chased distribution instead of demos. Earlier editions live on the AI startups tag page.
Instinct: $1 billion at a $10 billion valuation
Instinct is an AI startup building a personal agent that handles everyday tasks for consumers. Founded in 2025 by Noah Shinn, who previously worked at Sierra, the customer service AI company run by Salesforce co-CEO Bret Taylor, Instinct lets users talk to it by text or phone call and hand over work such as planning trips, buying groceries, booking tickets and cancelling subscriptions, plus a concierge service that calls businesses on a user's behalf.
The company raised $1 billion in a round that quadrupled its valuation to $10 billion, with Sequoia Capital, Benchmark Capital and Coatue participating, Reuters reported. Shinn told the Wall Street Journal last month that Instinct had raised $250 million at a $2.5 billion valuation, which makes this one of the fastest valuation step-ups of the year. Source: TechCrunch
The open question is whether the product can carry the price. Instinct says its privacy stack includes isolated sandboxes, short lived local credentials and active detection of subtle hallucinations, controls it needs because an agent holding a user's payment details is a far larger risk surface than a chatbot. TechCrunch reported in August that privacy and security researchers had raised concerns about the assistant.
Tekever: $580 million for European defence drones
Tekever is a Portuguese company that builds autonomous drone and surveillance systems for maritime, border and defence missions. It raised $580 million in the first close of its Series D at a $6.4 billion valuation, tech.eu reported.
European rearmament is the demand signal. Governments are buying autonomy, sensing and software at a pace domestic suppliers cannot match alone, which is why venture money now treats defence AI as an infrastructure category rather than a niche, and why a Portuguese company can raise at a valuation once reserved for consumer platforms. The startups it hurts are the traditional prime contractors and their slow subcontracting chains.
OpenEvidence: $250 million from the people who would use it
OpenEvidence is a medical AI company whose tool answers clinical questions for doctors. It is free for verified physicians and funded by pharmaceutical advertising, a model that made it one of the most widely used clinical AI products in the United States. It raised $250 million from hospital systems alongside Andreessen Horowitz at a $15 billion valuation, Business Insider reported. The company has raised more than $1 billion over the past year.
The structure of the round is the signal. Health systems that already use the tool are now investors in it, which binds distribution to ownership. Founded by Daniel Nadler and based in Miami, OpenEvidence competes with general purpose chatbots for clinical work, and hospital equity gives it a defensible position that a better model alone would not.
Noxtua: Europe's legal AI gets bought by its data suppliers
Noxtua is European legal AI built for lawyers, in-house legal teams, public administration and the judiciary: legal research, analysis of complex questions and document drafting. It closed a Series C of more than 100 million euros, with Germany's C.H.BECK, which had already led its Series B, becoming majority shareholder and Austria's MANZ joining as an investor. It was the largest investment in C.H.BECK's 260 year history, the company said, as Artificial Lawyer reported.
The strategy is unusual and worth watching. Noxtua gets exclusive, curated legal data from publishers across Europe, and those publishers now own equity and a distribution channel through the Beck-Noxtua workspace. Content owners owning the vendor is a stronger moat than a model advantage, especially as US legal AI vendors push into Europe.
Humanos: scoring AI agents so insurers can price them
Humanos is a Lisbon startup building a live risk score for AI agents. It raised $3.2 million in seed funding led by Anthemis, per Dealroom, to build what it calls a risk passport: a continuously updated score from 0 to 100 based on an agent's behaviour, permissions and activity history, the company said.
The thesis is that agents need financial identities. An autonomous system that executes payments, signs contracts or acts on a customer's behalf has no credit history, no liability record and no audit trail that an insurer or lender can underwrite. Humanos is betting that identity and behaviour scoring become the gate to agent commerce, which is a smaller round than the others here and arguably points further ahead than any of them.
AI startups snapshot
| Startup | What They Do | Latest Round | Valuation | Key Differentiator |
|---|---|---|---|---|
| Instinct | Personal AI agent for daily tasks | $1B Series C | $10B | Consumer agent with phone concierge |
| Tekever | Drone and surveillance AI | $580M Series D | $6.4B | European defence autonomy |
| OpenEvidence | Clinical answers for doctors | $250M | $15B | Free for physicians, ad funded |
| Noxtua | European legal AI | 100M+ euros Series C | Not disclosed | Owned by legal publishers |
| Humanos | AI agent risk scoring | $3.2M seed | Not disclosed | Live 0 to 100 agent risk score |
Frequently Asked Questions
What are the top AI startups to watch today?
Instinct, Tekever and OpenEvidence are the top AI startups to watch on Sep 28, 2026. Instinct raised $1 billion at a $10 billion valuation for its consumer agent, Tekever raised $580 million at a $6.4 billion valuation for defence drones, and OpenEvidence took $250 million from hospital systems at a $15 billion valuation.
How did Instinct reach a $10 billion valuation so quickly?
Instinct quadrupled its valuation in a month, from $2.5 billion to $10 billion. The company raised $250 million at a $2.5 billion valuation in late August, then closed a $1 billion round with Sequoia, Benchmark and Coatue. Investors are pricing the consumer agent category ahead of revenue, which is why the step-up looks extreme.
Why does an AI agent need a risk score?
An AI agent that moves money has no credit history or liability record for insurers and lenders to price. Humanos builds a live 0 to 100 score from an agent's behaviour, permissions and activity history, sold as a risk passport. As agents execute payments and sign contracts, that identity layer becomes the gate to agent commerce.
Related reading
Background worth having before you act on the above:
- AI Startups to Watch (Sep 8): Mistral, Instinct AI & Stoke Space
- Starcloud's .3B orbital data centers, a 1B inference chip bet, and robot models that learn from a single demo: AI Startups to Watch for August 23, 2026
- AI Startups to Watch August 10, 2026
- AI Startups to Watch August 9, 2026
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