Mar 9, 2026 Weekly Roundup

Weekly Funding Roundup:
Mar 2-7, 2026

March opened with velocity. Three $500M+ rounds in a single week: Sierra Space ($550M at $8B), MatX ($500M for AI chips), and Vast ($500M for the world's first commercial space station). Science Corp hit unicorn status at $1.25B with brain-computer interfaces. Nominal went from founding to $1B valuation in 10 months. Across 19+ disclosed deals totaling $2.3B+, the week showed that February's capital appetite was not a one-month anomaly. Space, AI hardware, and cybersecurity led the way.

$2.3B+
Total Raised
19+
Deals
3
Acquisitions
2
New Unicorns

Key Themes

Space infrastructure became a billion-dollar-a-week category. Sierra Space ($550M) and Vast ($500M) raised $1.05B in back-to-back days. Both companies are building for the post-ISS era, with Sierra Space's Dream Chaser spaceplane and Orbital Reef collaboration alongside Vast's Haven-1 station. The investor rosters (General Atlantic, Coatue, BlackRock, Balerion Space Ventures) signal that space is no longer a fringe venture category. It is attracting the same institutional capital that powered the AI infrastructure buildout.

AI hardware is diversifying beyond Nvidia. MatX's $500M for transformer-optimized silicon, co-led by Jane Street and Situational Awareness, is the clearest bet yet that the AI chip market can support multiple architectures. Broadcom's CEO projected $100B+ in annual AI chip revenue by 2027. The implication: there is enough demand for GPUs, custom ASICs, and inference chips to coexist. Startups with differentiated silicon have a credible path to meaningful revenue.

Founder pedigree commands outsized early-stage capital. ZyG's $58M seed (ironSource founders, $4.4B exit), Cylake's $45M seed (Palo Alto Networks founder Nir Zuk), and Nominal's 10-month unicorn journey all share a common thread: investors paying premium prices for execution certainty from teams with verified, scaled outcomes. The question is whether these mega-seeds create discipline or inflate expectations.

European enterprise software attracted US-tier capital. Four European deals totaling $125M drew a16z, Accel, Felicis, Ribbit Capital, Sequoia, and Kleiner Perkins. Silverflow (Amsterdam, payments), Validio (Stockholm, data quality), Lio (Munich, AI procurement), and Evervault (Dublin, encryption) are building deep technical infrastructure with global ambitions. The YC pipeline continues pulling European founders to US markets early.

Top Rounds

Sierra Space Series C
Mar 6
$550M
$8.0B valuation

The space and defense tech company, spun out of Sierra Nevada Corporation in 2021, raised $550M at an $8B valuation. Total funding now stands at $2.24B across three rounds. The capital supports satellite and subsystem production, national security space expansion, and continued development of the Dream Chaser reusable spaceplane. New CEO Dan Jablonsky (former Maxar/DigitalGlobe CEO) was appointed the same week, signaling an operational shift toward execution.

LuminArx Capital Management (Lead) General Atlantic Coatue Management Moore Strategic Ventures Andalusian Private Capital
MatX Series B
Mar 2
$500M

The Mountain View-based AI chip startup raised one of the largest hardware rounds of 2026, positioning itself as a serious Nvidia alternative. MatX designs custom silicon optimized for transformer workloads, aiming to deliver better price-performance than general-purpose GPUs. Co-led by Jane Street (deep hardware expertise) and Situational Awareness (AI-focused fund), with prominent angels including Andrej Karpathy and Patrick Collison.

Jane Street (Lead) Situational Awareness (Lead) Spark Capital Marvell Technology Alchip Andrej Karpathy Patrick Collison Nat Friedman
Vast Series A
Mar 5
$500M

The commercial space station company raised $500M ($300M equity, $200M debt) to fund Haven-1, what would be the world's first privately-owned space station. Founded by Stellar co-founder Jed McCaleb, who self-funded the company's early development with an estimated $500M+ of his own capital. Haven-1 targets a 2026 launch aboard SpaceX Falcon 9. One of the largest first institutional rounds for a space company outside of SpaceX and Blue Origin.

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

The brain-computer interface company hit unicorn status at $1.25B, co-led by Lightspeed and Khosla with Coatue following on. 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: $490M. The third neurotech unicorn alongside Neuralink and Synchron.

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 joined the billion-dollar club with an $80M extension led by Founders Fund, reaching unicorn status roughly 10 months after founding. Nominal provides a unified environment for engineers to test complex hardware systems, from satellites to autonomous vehicles. Total funding: $182.5M across four rounds (Lux Capital seed, General Catalyst Series A, Sequoia Series B). Zero to unicorn in under a year.

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

Eight former ironSource executives (the company was acquired by Unity for $4.4B in 2022) launched ZyG with a $58M seed, co-led by three firms. The platform deploys autonomous AI agents across WhatsApp, Instagram, and email for direct-to-consumer brands. A $58M seed is eye-catching, but the ironSource pedigree and triple co-lead suggest a conviction bet on proven operators building in the AI agent wave.

Bessemer Venture Partners (Lead) Viola Ventures (Lead) Lightspeed Venture Partners (Lead)
Eight Sleep Strategic
Mar 4
$50M
$1.5B valuation

The AI-powered sleep technology company raised $50M at a $1.5B valuation from Tether Investments, the venture arm of stablecoin issuer Tether. Total funding: $292M since 2014 founding. The deal is notable for Tether's growing ambitions in consumer hardware: a crypto treasury giant deploying profits into physical products. Eight Sleep's Pod system uses biometric tracking and temperature regulation to optimize sleep.

Tether Investments (Lead) Valor Equity Partners Founders Fund Khosla Ventures
Prolium Bioscience Series A
Mar 3
$50M

Clinical-stage biotech launched with $50M to develop PRO-203, a CD20xCD3 T-cell engager targeting severe autoimmune diseases including systemic sclerosis and lupus. RTW Investments is both founding investor and sole backer. The company has already dosed its first patients. Joins the crowded but well-funded autoimmune space alongside Candid Therapeutics and others betting on T-cell engagers.

RTW Investments (Lead)

Also noted

$45M Seed
Cylake - Palo Alto Networks founder Nir Zuk launched AI-native cybersecurity platform from stealth. Builds on unified data foundation for total data sovereignty. Led by Greylock Partners (Asheem Chandna). Co-founders from PAN and SentinelOne.
$40M Series B
Silverflow - Cloud-native payment processing from former Adyen executives. API-first card processing for banks and PSPs. Led by Picus Capital. Total: $76M.
$32M Seed + A
Smack Technologies - Defense-focused frontier AI lab delivering 'Decision Dominance' to the DoD and allies. Co-led by Geodesic Capital and Costanoa Ventures.
$31M Series B
Crossover Markets - Institutional crypto dark pool ECN at $200M valuation. Led by Tradeweb Markets. DRW, Virtu, XTX, Flow Traders, Wintermute all participated. TradFi building crypto infrastructure.
$30M Series A
Validio - Stockholm-based enterprise data quality platform for AI pipelines. ML-driven issue detection. Led by Plural. Total: $47M.
$30M Series A
Lio - Munich-based AI procurement platform deploying autonomous agents for enterprise purchasing. YC S23. Led by a16z. Total: $33M.
$25M Series B
Evervault - Dublin-based encryption-as-a-service for payment card protection. Founded by Shane Curran at age 18. Led by Ribbit Capital. Backed by Sequoia, Index, Kleiner Perkins, Stripe. Total: $46M.
$16M Strategic
ArmorCode - AI-powered cybersecurity exposure management platform. Consolidates vuln management, appsec, and cloud security. Total: $81M.
$10M Series A
Voomi Supply - B2B eCommerce for HVAC, plumbing, and industrial supply with 1M+ SKUs. Led by Asymmetric Capital Partners. Total: $11M.
$10M Series B
Mojo AI - AI safety platform for construction sites. Voice-enabled, bilingual safety app for data center builds. Clients include Meta, Prologis. Total: $21M.
$3M Seed
Cybervergent - Nigerian AI compliance and cybersecurity platform. 4,500+ controls, 100+ frameworks, 150+ organizations across Africa. WEF Tech Pioneer 2025. Co-led by Ventures Platform and Atlantica Ventures.

Acquisitions

Abrigo 360 View

Carlyle-backed banking compliance provider acquires Nashville-based CRM and marketing automation platform built for community banks. Consolidates compliance, lending, risk, CRM, and analytics under one vendor for 2,300+ financial institutions.

Accenture Ookla

Consulting giant acquires the company behind Speedtest, gaining a network intelligence data platform used by telecom operators, governments, and enterprises worldwide.

Pacific Avenue Capital Care.com
$320M

PE firm acquires the largest online caregiver marketplace from IAC for ~$320M. IAC paid $500M in 2020, marking a ~$180M write-down. Marketplace economics did not grow into peak-era valuations.

News & Signals

Cursor surpasses $2B ARR, doubling in 3 months

The AI code editor hit $2B annualized revenue, up from $1B just three months ago. Corporate buyers now account for ~60% of revenue. Cursor is growing faster than Slack, Zoom, or any prior developer tool at the same stage. The clearest proof that AI dev tools are a massive, fast-moving market.

Anduril reportedly seeking ~$4B at $60B valuation

Palmer Luckey's defense tech company is in talks for approximately $4B in new funding at a $60B pre-money valuation. If completed, it would be the most valuable pure-play defense tech startup by a wide margin. The autonomous systems and software-defined defense platform has become a go-to contractor for DoD modernization.

Broadcom CEO projects $100B+ AI chip market by 2027

CEO Hock Tan projected AI chip revenue across the industry will exceed $100B annually by 2027, up from ~$70B in 2025. The forecast validates bets on companies like MatX, Etched, Cerebras, and Groq. The market is large enough for multiple architectures to coexist alongside Nvidia.

TRAC predicts 30 startups most likely to become unicorns in 2026

TRAC's annual AI-driven prediction list identifies 30 early-stage startups most likely to hit $1B+. The model analyzes team pedigree, traction velocity, and investor quality. Previous editions have a ~40% hit rate within 18 months. The list skews toward AI infrastructure, dev tools, and vertical SaaS.

VC Mood This Week

Bullish Aggregated sentiment from X, Mar 2-7

Bullish signals

  • $1.05B into space infrastructure in two days (Sierra Space + Vast) celebrated as "space is now a real venture category"
  • MatX $500M validates the multi-architecture thesis for AI chips beyond Nvidia
  • Two new unicorns (Science Corp, Nominal) minted mid-week, neither building foundation models
  • European enterprise software attracting a16z, Sequoia, Kleiner Perkins seen as structural shift
  • Cursor's $2B ARR in 3 months is the fastest developer tool ramp in history
  • Nir Zuk launching Cylake draws "most credentialed cybersecurity founding team ever" comparisons

Bearish signals

  • $45M-$58M seeds for pre-product companies raise familiar questions about seed-stage discipline
  • Space funding concentration in two companies may crowd out smaller entrants
  • Care.com sold at $180M loss signals that not all categories benefit from the AI capital wave
  • "More dollars, bigger rounds, fewer winners" forecast concerns emerging fund managers
  • Post-February mega-round digestion still ongoing: are smaller deals getting lost in the noise?

The week's X discourse was notably energized. Space-tech enthusiasts celebrated Sierra Space and Vast as proof that orbital infrastructure is venture-investable at scale. The MatX round drew technical debate about custom ASICs vs. GPUs, with hardware-focused VCs arguing the $100B AI chip market can support multiple winners. Cylake's launch generated significant discussion in cybersecurity circles. The ZyG seed prompted debate about whether mega-seeds for proven operators represent efficient capital allocation or valuation inflation. Mid-week, Nominal's 10-month unicorn journey sparked comparisons to 2021-era velocity, with the consensus being that deeptech unicorns are qualitatively different from SaaS unicorns. By Friday, the mood shifted to analysis mode: $2.3B+ in one week, distributed across space, AI, cyber, fintech, and biotech. The consensus: March is not February (no $100B mega-rounds), but the underlying capital appetite remains strong and broadly distributed.

Daily Roundups

This weekly roundup is compiled from our daily coverage. Read each day's full analysis:

Mar 2 MatX $500M AI chips, Smack Technologies $32M defense AI, Cursor $2B ARR
Mar 3 Prolium Bioscience $50M, Mojo AI $10M, Accenture acquires Ookla, Care.com sold
Mar 4 Eight Sleep $50M at $1.5B from Tether, Crossover Markets $31M, TradFi-crypto convergence
Mar 5 Vast $500M, Science Corp $230M unicorn, Nominal $80M unicorn, ZyG $58M seed
Mar 6 Sierra Space $550M at $8B, Cylake $45M seed (PAN founder), Abrigo acquires 360 View
Mar 7 Signals only: TRAC unicorn list, Broadcom $100B chip forecast, SparkLabs Saudi fund

Methodology

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

Feb 23-28 roundup All posts