Megarounds of Funding: Enterprise Software, AI, and Space Tech Lead Investment

What Happened?

According to Crunchbase News data, the week of June 5, 2026 saw a wave of megaround funding rounds in US startups. The largest was for Ramp, an expense management platform, which closed a $750 million round led by Iconiq, GIC, and Ontario Teachers' Pension Plan, reaching a valuation of $44 billion. It was followed by three $500 million rounds each: Impulse Space (space technology), Supabase (AI development tools), and Flourish (foundational AI inspired by the human brain). In total, the week added over $2.25 billion in megaround, a figure not seen since the 2021 boom. Crunchbase highlights that these four deals top its weekly list of the 10 largest rounds, and that the number of deals over $100 million is increasing in 2026.

Why Is It Important?

These figures reflect renewed investor appetite for mature startups in strategic sectors. Ramp shows that financial software remains a magnet for capital, with a valuation placing it among the most valuable private companies. Founded in 2019, Ramp has raised over $2 billion in total and competes directly with Brex and Bill.com. Impulse Space, with over $1 billion raised in total, indicates that commercial space technology is no longer science fiction but a real business. The company, founded by Tom Mueller (ex-SpaceX), develops propulsion systems and orbital transportation. Supabase, with its open-source platform for AI developers, competes directly with Google's Firebase, validating the open-source business model with institutional backing. The $500 million round raises its valuation to $8 billion, according to sources close to the company. Flourish, backed by Jeff Bezos and Lux Capital, bets on a new approach to AI, away from traditional neural networks, which could redefine the field. Its focus on foundational AI inspired by the human brain seeks energy efficiency and superior reasoning capabilities.

What Will Be the Consequences?

In the short term, these capital injections will accelerate hiring, product development, and international expansion. Ramp could intensify its competition with Brex and Bill.com, especially in the SME segment. Impulse Space will bring orbital transportation services closer to commercial and government clients, competing with SpaceX and Rocket Lab. Supabase will strengthen its extension ecosystem and attract more developers, while Flourish, being in an early phase, will use the funds for research and model building. In the long term, these rounds could create a demonstration effect, attracting more capital to these subsectors and raising valuations of similar startups. However, there is also a risk of overvaluation, as happened in 2021, when many unicorn companies later suffered cutbacks. According to PitchBook, the number of megaround (>$100 million) in 2026 already exceeds the same period in 2025 by 30%, but the average size is smaller than in 2021, suggesting greater discipline.

What Should Readers Know?

Investors should be cautious: although megaround indicate confidence, they do not guarantee profitability. Enterprise software companies like Ramp need to demonstrate sustainable profitability; in 2025 it reported $500 million in revenue but still operating losses. In AI, competition is fierce and technical differentiation is key. For entrepreneurs, these rounds show that investors are looking for startups with real traction, solid teams, and large markets. For the general public, it is a sign that space technology and AI are advancing toward everyday commercial applications. Additionally, the participation of pension funds like Ontario Teachers' indicates that institutional capital is flowing into high-growth startups, which could have implications for market stability.

“We are seeing a return of megachecks, but this time with more discipline: investors are betting on startups that have already proven their business model,” comments a Crunchbase analyst.

Historical Context

In 2021, megaround were common, with over 1,200 deals over $100 million in the US, but many overvalued startups suffered in 2022-2023, when funding contracted by 50%. The current rebound seems more selective: Ramp has a 7-year track record, Supabase 6, and Impulse Space already has over $1 billion raised. Flourish is the exception, being an early bet but with a disruptive approach. According to CB Insights data, late-stage startup valuations have increased 15% year-over-year in 2026, but are still 25% below 2021 peaks. This suggests investors are paying premiums for quality, not hype.

Comparisons

Ramp competes with Brex (valued at $12.3 billion in 2022, but has reduced its valuation in secondary rounds) and Bill.com (market cap ~$10 billion). Ramp's $44 billion valuation places it above both, reflecting its faster growth. Supabase competes with Firebase (Google) and other backend-as-a-service platforms; Supabase already has 1 million registered developers. Impulse Space rivals SpaceX (private valuation of $200 billion) and Rocket Lab (market cap ~$5 billion), but focuses on smaller orbital transport missions. Flourish has no known direct competitors, but faces giants like OpenAI and Anthropic, which have raised tens of billions. Its focus on energy efficiency could be a key differentiator if it manages to demonstrate results.

In summary, the week of June 5, 2026 marks a milestone in the recovery of startup funding, with rounds that combine size, maturity, and focus on frontier technologies. Time will tell whether these valuations hold or whether they will repeat past mistakes.