Startup funding continues to accelerate this week of September 2026, with some of the largest recent investment rounds flowing into AI infrastructure, data centers, cloud computing, and cybersecurity.
Several companies recently announced funding rounds of $250 million or more, led by data center and AI infrastructure developer Crusoe, which raised $3 billion at a $30 billion valuation.
Other major rounds include Fluidstack, Gimlet Labs, Upwind Security, and high-protein food company Medic Brands.
Together, these five companies raised approximately $5.35 billion, highlighting where investors are placing significant growth capital.
Based on data curated from the Intellizence Startup Funding Dataset, here are the five top startup funding deals announced during the week ending September 06th, 2026.
Funding Deals for the Week – Highlights
| Company | Funding | Round / Type | Industry |
|---|---|---|---|
| Crusoe | $3 billion | Series F | AI Infrastructure / Data Centers |
| Fluidstack | $1.5 billion | Private Equity | Technology |
| Gimlet Labs | $300 million | Series B | Technology |
| Upwind Security | $300 million | Venture Series Unknown | Cyber Security |
| Medic Brands | $240 million | Series B | Restaurant & Food |
Funding Deals of the Week
Crusoe Raises $3 Billion at a $30 Billion Valuation
Funding Amount: $3 Billion
Funding Round: Series F
Valuation: $30 Billion
Industry: Technology
Crusoe, a developer of AI data centers and cloud infrastructure, raised $3 billion in Series F funding at a $30 billion valuation. The financing makes Crusoe the largest funding round among these recent deals and underscores the enormous amount of capital being deployed into infrastructure supporting artificial intelligence.
Crusoe has evolved from its early focus on using stranded energy for cryptocurrency mining into a major provider of AI cloud and data center infrastructure.
The company’s growth illustrates an important funding trend: investors are increasingly backing not only AI models and applications, but also the physical and computing infrastructure required to operate them at scale.
How Crusoe will Use the Funding
The AI infrastructure company is expected to use its new capital
- To expand its AI-focused data centers and cloud infrastructure as demand for GPU and AI compute capacity continues to grow.
2. Fluidstack Raises $1.5 Billion at an $18 Billion Valuation
Funding: $1.5 billion
Funding Round: Private Equity
Valuation: $18 billion
Industry: Technology
Fluidstack provides large-scale AI cloud and data center infrastructure and has become part of the rapidly expanding ecosystem supporting compute-intensive AI workloads. Its latest financing is another indication of the capital requirements associated with AI infrastructure. Building and operating large-scale compute environments requires significant investment in data centers, power capacity, networking, and specialized AI hardware.
How Fluidstack Will Use the Funding
Fluidstack plans to use the capital to:
- Build, acquire, and operate large-scale custom data centers and high-density GPU infrastructure for frontier AI.
3. Gimlet Labs raised $300 million in Series B funding at a $3 billion valuation.
Funding: $300 million
Funding Round: Series B
Valuation: $3 billion
Industry: Technology
Gimlet Labs is building infrastructure designed to improve AI inference performance across different types of computing hardware. While much of the first wave of AI infrastructure investment focused on training increasingly large AI models, inference — the computing required when users and applications actually run those models — is becoming another important area of investment.
Gimlet Labs’ funding reflects growing investor interest in technologies designed to make AI inference faster and more efficient.
How Gimlet will Use the Funding
- Cloud Infrastructure: Scale the serverless edition and managed capacity of its platform toward hundreds of megawatts of computing power.
- Custom Tech Support: Advance development on inference-optimized servers and expand compatibility across diverse chip architectures
4. Upwind Security Raises $300 Million at a $3.8 Billion Valuation
Funding: $300 million
Funding Round: Venture – Series Unknown
Valuation: $3.8 billion
Industry: Cyber Security Technology
Upwind Security, a Tel Aviv, Israel-based cloud security and runtime protection infrastructure platform provider, raised $300 million at a 3.8 billion valuation. The round was co-led by Bessemer Venture Partners and TCV, with participation from Craft Ventures, Salesforce Ventures, Greylock, Cyberstarts, Leaders Fund, Alta Park Capital, and Penny Jar Capital.
The company focuses on runtime protection, helping organizations identify vulnerabilities and threats using information from their live cloud environments.
How Upwind will Use the Funding
- To scale the platform and add customers.
5. Medic Brands, The David Protein Parent Raises $250 Million at $2.25 Billion Valuation
Funding Amount: $250 million
Funding Round: Series B
Valuation: $2.25 Billion
Industry: Technology
AI infrastructure is attracting enormous investment, but large funding rounds are not limited to technology companies. Medici Brands, the parent company of David Protein, has raised $250 million in Series B funding co-led by Greenoaks and Valor Equity Partners, with chief executive Peter Rahal, ICONIQ, and Imaginary Ventures participating. The round values the business at $2.25 billion post-money.
The company develops protein-focused food products and represents a different investment theme: continued investor interest in consumer brands positioned around protein, nutrition, and changing health and wellness preferences.
How Medic Brands will Use the Funding
The additional capital will:
- Be used to accelerate its next phase of growth.
What These Funding Rounds Tell Us
The latest funding activity reveals several important trends.
- AI infrastructure is attracting significant capital.
- AI investment is moving beyond models.
- Cybersecurity remains strategically important.
- Large growth rounds are creating multibillion-dollar companies.
All five companies in this group were valued above $2 billion following their latest financing, with Crusoe reaching $30 billion and Fluidstack reaching $18 billion.
Funding signals can reveal emerging industry momentum. A single funding announcement provides information about one company. Aggregating thousands of funding events can reveal broader patterns around industries, investors, geographies, valuations, and stages of company growth.
Why Use the Intellizence Startup Funding Dataset for AI Funding Tracking?
The Intellizence Startup Funding dataset helps investors, researchers, sales teams, and strategy professionals track startup and private-company financing activity in a structured, searchable format. It tracks funding announcements across public and private companies and converts them into structured, searchable intelligence.
Instead of manually monitoring thousands of company announcements, news articles, and other public sources, users can analyze structured funding information such as:
Company
Funding announcement date
Funding amount
Funding round
Company valuation
Investors
Industry
Headquarters location
Company website
Intellizence combines AI-supported curation with human review to convert public funding announcements into structured and searchable records. The information can be accessed through the Intellizence platform or integrated into applications, AI agents, and internal workflows through the REST API.
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