Current Startup and Venture Capital News for September 12, 2026: Mega-Rounds in Infrastructure, AI Chips, and Defense Technologies, IPO Preparations for DeepSeek and Oura, Strategic Deals by Meta and Salesforce, and Signals for Investors and Funds.

The second week of September 2026 revealed the true direction of venture capital. In just one day, ten of the largest deals generated approximately $4.8 billion, with 93% of this amount allocated to only three companies — The Boring Company, Positron AI, and Mach Industries. The market did not become "broadly risky": investors are willing to write giant checks only to those startups that control a scarce resource — tunnels, inference chips, optical connections for data centers, or defense manufacturing.

Key events shaping the venture market agenda for Saturday, September 12, 2026:

• The Boring Company closed a Series D round of $3 billion with a valuation of $23 billion — the UAE acted as lead investor, and the deal is accompanied by a contract for the construction of over 150 km of tunnels.
• Positron AI raised $875 million at a valuation of $5 billion just seven months after a round at $1.06 billion.
• Mach Industries expanded its Series C by an additional $600 million; the valuation of the defense startup doubled to $3.7 billion over three months.
• Harvey secured $550 million at a valuation of $15.5 billion, reinforcing the thesis of vertical AI as a distinct category.
• DeepSeek hired CITIC Securities to prepare for its IPO on the Shanghai STAR Market, with a potential valuation of around $75 billion.
• Meta and Salesforce are acquiring AI teams: Stilla.ai is already within Meta's orbit, while Listen Labs is being discussed for ~$2 billion.

The Boring Company: $3 Billion and Sovereign Capital as a Market Entry Strategy

The largest deal of the week is The Boring Company's Series D round of $3 billion with a $23 billion valuation. The lead investor is the United Arab Emirates, with co-investors including Sequoia Capital, Andreessen Horowitz, and Baron Capital. Importantly, the funding came with an agreement for the construction of over 150 km of tunnels in the UAE.

For venture investors, this marks a new model: sovereign capital acts as both a shareholder and anchor customer, alleviating the company's risk of finding clients. However, engineering and design risks remain; the primary active showcase of the company continues to be the Vegas Loop, while projects in Los Angeles, Washington, and Chicago have been suspended. Nevertheless, the valuation of $23 billion sets a new norm: infrastructure startups with technology, political access, and the ability to participate in tenders on the scale of tens of kilometers receive venture multipliers.

AI Infrastructure: Inference and Photonics Instead of Another Chatbot

The center of gravity for venture investments in artificial intelligence has definitively shifted from models to the "hardware" that supports them.

Positron AI: $875 Million as an Alternative to Nvidia in Inference

The Reno-based startup closed its Series C at $375 million and Series C-1 up to $500 million at a valuation of $5 billion. The round was led by NEA, Atreides Management, Valor Equity Partners, Andra Capital, SemiAnalysis Capital, and Jim Clark; the deal included participation from the Qatar Investment Authority, Cisco Investments, and Naver Ventures. The Asimov processor utilizes a "memory first" architecture with up to 2.3 TB per chip, with mass production slated for the second half of 2027. More than 50 previous-generation racks are already deployed in Oracle Cloud Infrastructure.

Ayar Labs: Optical Connections Valued at $5 Billion

The silicon photonics developer added $150 million to its March Series E, raising the total round to $650 million and the valuation to approximately $5 billion, up from $3.8 billion at the beginning of the year. Strategic investors include Nvidia, AMD, and MediaTek. Demand from public companies supports the thesis: Oracle reported quarterly capital expenditures of $28.5 billion, while hyperscalers issued approximately $220 billion in bonds over the year to finance data centers.

Defense Technologies: Mach Industries Doubles Its Valuation in a Quarter

Mach Industries raised an additional $600 million as part of the Series C expansion, bringing the total round to ~$900 million. The valuation increased from $1.8 billion in June to $3.7 billion. The deal involved Ribbit Capital, Infinite Capital, Bedrock Capital, and Sequoia. The company produces vertical-takeoff drones, long-range strike systems, and counter-drone systems, while also expanding into propulsion systems through the acquisition of Exquadrum.

Investors are funding not just a single platform but an industrial base: vertical integration of production is becoming a key barrier to entry. The defense sector in 2026 has definitively ceased to be a niche venture category — in the first half of the year, Anduril raised $5 billion, while the Finnish ICEYE raised $1.2 billion.

Applied AI: Premium for Ownership of the Workflow

Alongside mega-rounds in infrastructure, financing for vertical AI companies continues, where protection is not based on the model but on integration into regulated processes:

1. Harvey — $550 million at a valuation of $15.5 billion (led by Diffusion and Lightspeed); the legal AI startup released its own model Tenet based on open weights.
2. Inspiren — $70 million Series C at a valuation of $550 million led by NewView Capital; AI monitoring in nursing homes.
3. Rogo Technologies — about $30 million in strategic investments from Citi, Barclays, BNP Paribas, MUFG, and Société Générale; banks are becoming both shareholders and clients.
4. Graph AI — $13.3 million from Insight Partners and Bessemer for pharmacovigilance automation.

The common denominator of these deals is a specific buyer, measurable operational results, and the high cost of replacing the product in the client's stack.

M&A and Strategic Deals: Corporations Acquiring Teams, Regulators Observing

Meta acquired the Stockholm-based startup Stilla.ai, which emerged from stealth mode after a seed round of $5 million, to enhance business agents in WhatsApp and Messenger. Salesforce is negotiating to buy Listen Labs for about $2 billion — after the startup recently signed a term sheet for $125 million at a valuation of $1.5 billion. This illustrates how AI companies are becoming acquisition targets long before reaching traditional scale.

Concurrently, the U.S. Department of Justice is reviewing Nvidia's licensing deal with Groq, valued at $17–20 billion, for potential antitrust concerns. This is an important signal for investors in chip startups: the "license plus team transition" model, as an alternative to notified mergers, may cease to be viable.

Asia: DeepSeek Prepares for IPO, Alibaba Values UniPat AI at $2.5 Billion

DeepSeek has enlisted CITIC Securities and three other underwriters to prepare for its listing on the STAR Market of the Shanghai Stock Exchange; the process is expected to begin by the end of the year. Simultaneously, the company is conducting a pre-IPO round at a valuation of around 500 billion yuan (approximately $75 billion) following a June round of $7.4 billion. Alibaba leads a $300 million round in UniPat AI — a model assessment and training platform — at a valuation of $2.5 billion; Tencent and HSG are participating in the deal. China is placing billion-dollar price tags on AI “tools,” not just the models themselves. In India, Swish raised $24 million in Series B funding from Bertelsmann India Investments for ten-minute food delivery.

IPO Market: The Window is Open, But Selectively

Oura has filed for a Nasdaq listing under the ticker OURA and aims to raise up to $3 billion at a valuation exceeding $16 billion; the offering is expected by the end of September. Meanwhile, Motive Technologies has withdrawn its IPO of approximately $600 million — the public market continues to distinguish between "AI giants" and everyone else. Anthropic, as of mid-week, is pushing its placement to October. Direct listings are experiencing a record year in quantity but not in returns for investors.

Russia and the CIS: The Funnel has Narrowed

As of September 9, about 90% of Russian startups were unprepared for investment: out of 2,681 applications for one of the industry shows, only 2–4 projects made it to the final selection, while investors made offers totaling over 700 million rubles. The selection process is tightening — the market is systematically filtering out projects without confirmed economics. The global context is reinforcing this trend: according to KPMG, global venture investment volume for the first half of 2026 reached $560.4 billion, but the top 10 deals accounted for nearly half of this amount, with OpenAI and Anthropic accounting for about $217 billion.

What This Means for Venture Investors and Funds

The September landscape fits into the formula of "capital in abundance, scarcity remains." Practical takeaways for managers:

• Strategic capital is becoming a distribution channel. The UAE for Boring, banks for Rogo, and Oracle for Positron — an investor who is also a customer reduces commercial risk more effectively than a higher valuation from a financial fund.
• Capital intensity is no longer a vice if it buys a barrier. Factories, chips, and photonics are funded in tranches tied to specific milestones: design, going live, customer qualification.
• "AI-powered" is not an investment thesis. The premium goes to those who own the regulated process, data, and switching costs.
• The barbell market requires two strategies. Mega-checks concentrate in the U.S., while seed and early rounds in Europe, India, and China remain small and rigorously selected.

The venture market enters the fall of 2026 with record reserves of capital and a narrowing pool of recipients. Companies that cannot be replicated with the next model release will prevail.