Startup funding activity remained strong in the first week of August 2026, with several companies announcing exceptionally large late-stage financing rounds across defense technology, energy storage, nuclear power, AI infrastructure and live commerce.
Five companies — Hadrian, Base Power, Valar Atomics, Lumilens and Whatnot — raised more than $4.6 billion combined, highlighting investors’ continued appetite for companies addressing large infrastructure, energy and technology markets.
Based on data curated from the Intellizence Startup Funding Dataset, here are the five top startup funding deals announced during the week ending August 9th, 2026.
Funding Deals for the Week – Highlights
| Company | Industry | Amount | Series |
|---|---|---|---|
| Hadrian | Technology | $1.37B | Series D |
| Base Power | Energy Storage | $1B | Series D |
| Valar Atomics | Ene | $1B | Series B |
| Lumilen | Technology | $700M | Series C |
| WhatNot | Live Commerce / E-commerce | $545M | Series G |
Funding Deals of the Week
Hadrian Raises $1.37 Billion Series D at a $7.87 Billion Valuation
Funding Amount: $1.37 billion
Funding Round: Series D
Valuation: $7.87 billion
Industry: Defense Technology / Advanced Manufacturing
Defense manufacturing company Hadrian raised $1.37 billion in Series D financing, valuing the company at $7.87 billion. The financing was announced on August 6, 2026.
The round was co-led by WCM Investment Management, Washington Harbour Partners, Valor Equity Partners, 137 Ventures and Baillie Gifford. JPMorganChase’s Strategic Investment Group joined as an anchor co-lead through the bank’s Security and Resiliency Initiative.
Other participants included 1789 Capital, Morgan Stanley Wealth Management, Apollo-managed funds, T. Rowe Price-advised accounts, CapitalG, Andreessen Horowitz, Founders Fund, Lux Capital, Altimeter and Construct Capital, alongside existing investors.
How will Hadrian use the funding?
Hadrian plans to use the financing to:
- Build additional manufacturing facilities
- Expand research and development
- Increase production capacity
- Develop new production lines, including munitions and autonomous systems
- Expand its engineering and manufacturing workforce
2. Base Power Raises $1 Billion Series D at a $13 Billion Valuation
Funding Amount: $1 billion
Funding Round: Series D
Valuation: $13 billion post-money
Industry: Energy Storage / Residential Energy
Residential energy startup Base Power secured $1 billion in Series D financing at a $13 billion post-money valuation. The round was led by Ribbit, Addition, Valor Equity Partners, and JPMorgan Chase’s Strategic Investment Group, with participation from Altimeter, D1 Capital Partners, Sands Capital, Coatue, Layer Global, and Energy Impact Partners. Existing investors including Thrive Capital, Andreessen Horowitz, Lightspeed, Trust Ventures and CapitalG also reinvested.
The latest financing brings Base Power’s total capital raised to more than $2.5 billion.
How will Base Power use the funding?
The new capital will support:
- Deployment of Base Core to more homes
- Expansion into additional U.S. markets
- Increased battery manufacturing
- Expansion of its distributed energy network
- Hiring across engineering, operations and other functions
3. Valar Atomics Raises $1 Billion Series B to Scale Nuclear Energy Infrastructure
Funding Amount: $1 billion
Funding Round: Series B
Valuation: Not disclosed
Industry: Nuclear Energy / Energy Infrastructure
Nuclear energy startup Valar Atomics closed a $1 billion Series B financing round led by Sequoia Capital. Sequoia partner Shaun Maguire will join Valar Atomics’ board as part of the investment.
Other investors participating in the financing included Apandion, Atreides Management, Conviction, Dream Ventures, HOF Capital, Point72, Riot Ventures, Snowpoint Ventures and Valor Equity Partners, alongside other new and existing investors.
In addition to the equity round, Valar secured a $200 million credit facility led by Erebor Bank as administrative agent and J.P. Morgan, alongside Crescent Cove and Hercules Capital.
How will Valar Atomics use the funding?
The Series B will help Valar transition from demonstrating integrated reactor systems to manufacturing fleets of reactors. Valar is targeting growing electricity requirements from AI infrastructure, industrial applications, and national-security-related energy demand.
Its strategy includes vertically integrating areas such as:
- Reactor manufacturing
- Reactor deployment
- Long-term operations
- Nuclear fuel production
- Supporting manufacturing infrastructure
4. Lumilens Raises More Than $700 Million Series C at a $5.51 Billion Valuation
Funding Amount: $700 million
Funding Round: Series C
Valuation: $5.51 billion
Industry: AI Infrastructure
AI infrastructure startup Lumilens raised more than $700 million in Series C funding, valuing the company at $5.51 billion. The financing brings Lumilens’ total capital raised to more than $900 million.
The financing was co-led by Atreides Management, Bain Capital Ventures, Meritech, Seligman Ventures and Spark Capital. Participants included Addition, AICONIC Ventures, Alkeon, HarbourVest, J.P. Morgan Private Capital, Mayfield, MVP Ventures, Qualcomm Ventures, Peak XV, Redpoint Ventures and Seifdune, among others.
How will Lumilens use the funding?
Lumilens said it is already shipping its first product into production AI data centers under a multi-billion-dollar customer agreement with a hyperscale customer.
The company emerged from stealth alongside the financing announcement.
The round highlights continued investor interest in the infrastructure surrounding AI—not only GPUs and data centers, but also the networking and connectivity technologies required to connect increasingly large AI compute clusters.
5. Whatnot Raises $545 Million Series G at a $20 Billion Valuation
Funding Amount: $545 million
Funding Round: Series G
Valuation: $20 billion
Industry: Live Commerce / E-commerce
Whatnot, the live-shopping marketplace, raised $545 million in Series G financing at a $20 billion valuation, almost doubling its valuation from its previous financing in October 2025.
Whatnot operates a live-commerce marketplace where sellers host livestreamed shopping events and auctions while buyers interact and purchase products in real time.
The company initially gained traction in collectibles such as trading cards and Funko Pops before expanding into categories including fashion, sneakers and other consumer products.
The Series G round was led by ICONIQ, Lightspeed and Avra. The new financing brings the company’s total funding since its founding in 2019 to approximately $1.5 billion.
How will Whatnot use the funding?
Whatnot will use the financing to help sellers grow their businesses and continue investing in trust and the overall marketplace experience.
At a $20 billion valuation, Whatnot’s latest funding round also stands out among the largest venture deals of 2026, which have been concentrated in AI and infrastructure companies.
What These Funding Rounds Tell Us About the 2026 Venture Capital Market
These five deals show that large venture rounds are flowing into several distinct areas of the economy.
- AI is creating opportunities beyond AI models
- Energy infrastructure is becoming a major investment theme
- Defense and advanced manufacturing continue attracting capital
- Large consumer platforms can still attract mega-rounds
Why Use the Intellizence Startup Funding Dataset for Venture Capital Tracking?
The Intellizence Startup Funding dataset is useful for companies to track funding events like signal growth, expansion, hiring, vendor spend, and changing competitive dynamics.
The Intellizence Startup Funding Dataset brings this information together in a structured and easy-to-use format. It helps investors, analysts, sales teams, and researchers:
- Monitor newly announced startup funding rounds
- Identify active venture capital and private equity investors
- Compare funding amounts, funding stages, and company valuations
- Discover emerging startups and newly created unicorns
- Analyze funding trends by industry, geography, and company type
- Identify sectors and technologies attracting increased investor interest
- Access structured funding intelligence through the Intellizence Web App, API, or MCP Connector
For Intellizence, the key value proposition could be summarized as:
“Turn startup funding announcements into actionable signals for sales, investment research, competitive intelligence, and market analysis.”
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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