Mar 5, 2026 Daily Roundup

Daily Funding Roundup:
Mar 5, 2026

Wednesday was the biggest day of March so far. Vast raised $500M to build the world's first commercial space station. Science Corp hit unicorn status with a $230M Series C for brain-computer interfaces. Nominal joined the billion-dollar club at $80M. ironSource veterans at ZyG landed a $58M seed for AI-powered DTC commerce. Eight deals spanning space, neurotech, payments, data quality, procurement, and encryption totaled nearly $1B.

$868M+
Equity Raised
4
Key Rounds
4
Also Noted

Key Themes

Physical frontiers are attracting venture-scale capital. Vast's $500M Series A and Science Corp's $230M Series C represent massive bets on hardware that operates at the boundary of what is commercially feasible: orbital habitation and retinal implants. These are not incremental SaaS plays. They require years of R&D, regulatory approval, and physical infrastructure. The fact that top-tier VCs (Lightspeed, Khosla, Founders Fund, Sequoia) are writing checks of this size for pre-revenue or early-revenue hardware companies suggests a structural shift in risk appetite.

Proven operators compress the venture timeline. ZyG's $58M seed and Nominal's $80M extension share a common trait: founders with verifiable track records. The ironSource team exited at $4.4B; Nominal's team came from SpaceX and Palantir. VCs are paying premium prices for execution certainty, especially in AI and deeptech where the margin between "good idea" and "working product" is wide.

European enterprise infrastructure is attracting US-tier investors. Four of today's eight deals are European companies (Amsterdam, Stockholm, Munich, Dublin) building core infrastructure in payments, data quality, procurement, and encryption. a16z, Accel, Felicis, Ribbit, Sequoia, and Kleiner Perkins all participated. This is not VC tourism. It is a structural recognition that Europe produces world-class enterprise software founders.

The Rounds

Vast Series A
Mar 5
$500M

The commercial space station company raised $500M in a Series A ($300M equity, $200M debt) to fund Haven-1, what would be the world's first privately-owned space station. Founded in 2021 by Stellar co-founder Jed McCaleb, who self-funded the company's early development with an estimated $500M+ of his own capital. Haven-1 is targeting a 2026 launch aboard a SpaceX Falcon 9. CEO Max Haot leads day-to-day operations while McCaleb provides the strategic vision and capital base. Space infrastructure is emerging as a genuine venture category, not just a government contract play.

Balerion Space Ventures (Lead)
Science Corp Series C
Mar 5
$230M
$1.3B valuation

The brain-computer interface company raised $230M at a $1.25B valuation, co-led by Lightspeed and Khosla Ventures with Coatue following on from the $182M Series B. Founded by Neuralink co-founder Max Hodak, Science Corp is developing the Science Eye, a thin-film microLED display implanted behind the retina to restore vision for people with degenerative retinal diseases. Total funding now stands at $490M. The unicorn milestone signals that neurotech is moving from pure research into commercial viability, with a device that bypasses the brain entirely and works at the retinal layer.

Lightspeed Venture Partners (Lead) Khosla Ventures (Lead) Coatue Management
Nominal Series B Extension
Mar 5
$80M
$1.0B valuation

The hardware and software testing platform raised an $80M extension to its Series B at a $1B valuation, led by Founders Fund. Nominal provides a unified environment for engineers to test complex hardware systems, from satellites to autonomous vehicles, replacing fragmented spreadsheets and custom scripts. Founded in 2022, the company has now raised $182.5M total across four rounds (Seed from Lux Capital, Series A from General Catalyst, Series B from Sequoia). The deal reflects Founders Fund's ongoing thesis that the next generation of great companies will be built at the intersection of software and physical systems.

Founders Fund (Lead)
ZyG Seed
Mar 5
$58M

The AI-powered agentic operating system for direct-to-consumer brands raised a $58M seed, co-led by Bessemer, Viola Ventures, and Lightspeed. ZyG was founded in 2024 by eight former ironSource executives (the company was acquired by Unity for $4.4B in 2022), led by CEO Omer Kaplan and co-founder Tomer Bar Zeev. The platform deploys autonomous AI agents across WhatsApp, Instagram, and email to handle customer interactions for DTC brands. A $58M seed is eye-catching, but the ironSource pedigree and the three co-leads suggest this is a conviction bet on proven operators building in the AI agent wave.

Bessemer Venture Partners (Lead) Viola Ventures (Lead) Lightspeed Venture Partners (Lead)

Also noted

$40M Series B
Silverflow - The cloud-native payment processing platform raised $40M led by Picus Capital. Built by former Adyen executives Anne Willem de Vries and Onno Cadmann, Silverflow offers real-time, API-first card processing infrastructure for banks and PSPs. Total funding: $76M. The Adyen alumni network continues to spin out category-defining fintech infrastructure.
$30M Series A
Validio - The Stockholm-based enterprise data quality platform raised $30M led by Plural. Validio uses ML to automatically detect and fix data quality issues in AI pipelines and analytics. Total funding: $47M. Data quality is becoming a must-have as enterprises push AI models into production.
$30M Series A
Lio - The Munich-based AI procurement platform raised $30M led by a16z. YC S23 graduate Lio deploys autonomous agents to handle enterprise purchasing workflows including vendor sourcing and negotiation. Total funding: $33M. a16z continues its aggressive pace in AI enterprise software.
$25M Series B
Evervault - The Dublin-based encryption-as-a-service company raised $25M led by Ribbit Capital. Founded by Shane Curran at age 18, Evervault provides secure data infrastructure for payment card protection and PCI compliance. Total funding: $46M. Backed by Sequoia, Index Ventures, Kleiner Perkins, and Stripe.

News & Signals

Space infrastructure moves from government contracts to venture-scale capital

Vast's $500M Series A is one of the largest first institutional rounds for a space company outside of SpaceX and Blue Origin. The commercial space station concept is no longer a whitepaper. Haven-1 has a launch contract, a target date (2026), and now the capital to execute. More notable: founder Jed McCaleb's willingness to put $500M+ of his own capital in before raising externally signals conviction that few VCs would match. The Series A structure ($300M equity, $200M debt) is also instructive: debt financing for space hardware suggests lenders see tangible collateral and milestones, not just venture optionality.

Neurotech unicorns signal the category is commercially viable

Science Corp's $1.25B valuation puts it alongside Neuralink and Synchron as the third neurotech unicorn. But unlike Neuralink's brain-implant approach, Science Corp's retinal display is surgically simpler and targets a more immediately addressable market (degenerative retinal diseases). The $490M in total funding and the co-lead by Lightspeed and Khosla (two of the most disciplined growth investors) suggest this is not a science project. It is a commercial device on a path to clinical trials and eventual FDA approval.

The $50M+ seed is becoming normalized for proven operators

ZyG's $58M seed from three co-leads (Bessemer, Viola, Lightspeed) would have been a respectable Series B two years ago. But the ironSource founding team's track record ($4.4B exit to Unity) compresses the venture timeline. Investors are increasingly willing to write large first checks for serial founders, especially in AI where the talent-capital race is intense. The question is whether these mega-seeds create enough discipline for capital-efficient growth, or whether they plant the seeds of overvaluation.

European enterprise deeptech is having a moment

Four of today's eight deals are European: Silverflow (Amsterdam), Validio (Stockholm), Lio (Munich), and Evervault (Dublin). Together they raised $125M. The common thread is deep technical infrastructure (payments, data quality, procurement AI, encryption) with global ambitions. European enterprise software has historically been underappreciated by US VCs, but deals like Lio (a16z led) and Silverflow (Accel, Felicis) show that gap is closing. The YC pipeline is also pulling European founders to the US market early (Lio is YC S23).

VC Mood on X

Bullish Sentiment snapshot from X discussions

Bullish signals

  • Vast's $500M Series A celebrated as "the kind of moonshot bet venture was designed for"
  • Science Corp's $1.25B valuation seen as validation that neurotech is not just a Neuralink story
  • Two new unicorns minted in a single day (Science Corp, Nominal) draws comparisons to 2021-era velocity
  • European enterprise deals from a16z, Sequoia, and Ribbit interpreted as structural shift, not one-offs
  • ironSource founders raising $58M seed viewed as "the smart money backing the smartest operators"

Bearish signals

  • $500M for a pre-launch space station draws "WeWork in orbit" comparisons from skeptics
  • $58M seed for a company with no public product raises questions about seed-stage discipline
  • Brain-computer interfaces face long regulatory timelines; $1.25B valuation may be pricing in years of FDA uncertainty
  • March deal flow accelerating faster than expected, sparking concerns about deployment pace vs. due diligence

Wednesday's X discourse was notably energized after several quieter days to start March. The Vast deal dominated conversation, with space-tech enthusiasts celebrating the scale of the round and skeptics questioning whether commercial space stations have a viable business model. Science Corp's unicorn milestone was broadly well-received, with several VCs noting that retinal implants are a more addressable near-term market than full brain-computer interfaces. The ZyG seed generated debate about whether mega-seeds for proven operators represent efficient capital allocation or contribute to valuation inflation. Overall sentiment tilted bullish: "This is the kind of day that reminds you why venture capital exists."

Methodology

Data sourced from company announcements, press coverage, and social media posts via Grok analysis of X. All funding rounds include linked sources in our database. Visit individual company pages to see source URLs. X sentiment is an informal snapshot, not a quantitative index.

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