June 08, 2026 – U.S. startups landed more than a dozen nine-figure rounds this week. AI, space tech, and enterprise software powered the surge.
In Summary
Ramp raised $750 million at a $44 billion valuation, leading all U.S. deals.
Three firms tied at $500 million across space tech, developer tools, and AI.
Investors spread capital across finance, energy, robotics, and longevity science.
Global venture funding hit $92 billion in May, its second-largest month ever.
A spending spree returns to venture
Startup investors opened their wallets wide this week. They backed more than a dozen rounds worth hundreds of millions each. Spend-management platform Ramp led the pack with a $750 million raise. Three more firms followed close behind with $500 million deals.
The figures come from Crunchbase’s weekly roundup of the largest U.S. funding rounds. Moreover, several major outlets confirmed the headline numbers. As a result, this week ranks among the busiest of 2026 so far.
Ramp tops the chart at $750M
Ramp secured the week’s single biggest round. ICONIQ, GIC, and Ontario Teachers’ Pension Plan co-led the deal. The financing set a $44 billion valuation for the New York firm. Notably, that number nearly tripled within a single year. The company last raised at a $32 billion valuation in November.
Ramp builds corporate cards and expense software. Furthermore, it now serves more than 70,000 customers. Big-name clients include Visa, Uber, and Shopify. According to TechCrunch, the firm reports annualized revenue above $1 billion. It has now raised over $3 billion in total equity.
CEO Eric Glyman tied the growth to a deeper shift in finance. He argued that AI is reshaping how firms track and control spending. Bloomberg reported that Ramp also eyes an eventual public listing.
Space tech and AI claim three $500M deals
Three companies tied for second place this week. Each one raised exactly $500 million.
Impulse Space led the space tech entry. The Redondo Beach firm builds spacecraft and propulsion systems. Investors 137 Ventures and Banner VC led its Series D. Consequently, the round pushed total funding past $1 billion.
Supabase took the developer-tools slot. Its open-source platform helps engineers build AI apps. GIC led the fresh financing. Therefore, the six-year-old firm reached a $10.5 billion valuation.
Flourish rounded out the trio. The New York startup studies brain-inspired AI models. Backers include Jeff Bezos, Lux Capital, and Google Ventures.
Energy, longevity, and music attract big checks
Deal activity spread well beyond core software. Helion raised $465 million for fusion energy work. Thrive Capital led the Series G round. In addition, the deal valued Helion at $15.5 billion.
Meanwhile, NewLimit pulled in $435 million for longevity medicine. Coinbase CEO Brian Armstrong co-founded the firm. Founders Fund led its Series C round.
Music tech also made the list. Suno raised $400 million for its AI music tools. However, the company faces lawsuits from major record labels. Those suits target its training on copyrighted songs.
Robotics, intelligence, and defense close the list
Generalist AI matched Suno at $400 million. This robotics startup teaches machines complex physical tasks. Radical Ventures led the round at a reported $2 billion valuation.
AlphaSense followed with $350 million. The market-intelligence platform uses AI for research workflows. Vitruvian Partners and several institutions co-led the deal. As a result, the round set a $7.5 billion valuation.
Mach Industries closed out the top 10. The defense tech firm raised $300 million. Ribbit Capital and Infinite Capital led its Series C. That financing valued Mach at $1.8 billion.
Why the megaround trend matters
These deals share one clear theme. Investors want exposure to AI across every sector. Therefore, capital now flows into finance, space, energy, and robotics alike. In addition, late-stage valuations continue to climb rapidly.
This pattern echoes broader 2026 trends. Global venture funding reached $92 billion in May, according to deal disclosures and Crunchbase data. That total ranked as the second-largest month on record. Such concentration signals strong appetite at the top of the market.
Still, real risks remain. Some valuations may outpace actual revenue growth. Furthermore, legal fights like Suno’s could slow specific sectors. Yet investors appear willing to accept that uncertainty for now.
The takeaway for founders and investors
This week confirms a strong overall funding climate. Large checks clearly favor proven teams with AI-driven models. As a result, founders with a sharp AI story hold a real edge. Investors, meanwhile, continue to concentrate capital among category leaders.
The coming weeks will test this momentum. Pricing data from recent fintech rounds suggests demand stays hot. For now, the megaround era shows no sign of cooling.
