Mattias Ljungman

Who they are

Mattias Ljungman is Founder & Managing Partner at Moonfire Ventures — co-founded Atomico with Niklas Zennström in 2006 and built it to over $2 billion in assets under management before starting over at seed.

Person

Mattias started with an Honours BA from McGill University (1996), then took a Master's at Stockholm School of Economics (1999) — the transatlantic academic arc hints at someone who was always oriented toward both European and global markets. He spent roughly thirteen years co-founding and building Atomico with Niklas Zennström (the Skype founder), growing it from a 2006 bet on European tech into a firm with over $2 billion in assets under management. He wrote a public farewell post on Medium — 'Farewell Atomico, Hello Moonfire' — when he left, which is notable for its candor about wanting to start something new rather than riding an institution he'd already built. He founded Moonfire Ventures in 2019, launched with a $60 million first fund, and has since closed a $115 million Fund II plus a $25 million Opportunity Fund in May 2023. The through-line is institutional builder: he doesn't join funds, he creates them, and both times with a thesis about where European tech was underserved. He writes on Medium and LinkedIn about venture capital, European tech ecosystems, and AI-native investing, and has spoken at DLD, SXSW London 2026, Startup Grind, Tech Spirit Barcelona, and Station F — a consistent public presence that's practical and ecosystem-oriented rather than self-promotional.

Company

Moonfire's most recent visible deployment was in March 2026, when it led an $8 million seed and pre-seed round for Eunice, a London-based company building institutional-grade due diligence infrastructure for regulated markets — co-investing alongside Speedinvest and Openspace Ventures. Also in 2026, the firm made a first-time investment in Beglaubigt and a follow-on in MokN. Earlier in 2025, Moonfire participated in a $50 million Series A for Flexion, a Zurich-based humanoid robot software developer. The firm closed its $115 million Fund II in May 2023 alongside a $25 million Opportunity Fund, and hired Andrea Gurnari as Investment Partner to deepen its founder support capability. Moonfire's pitch is that it operates as a technology company that does venture capital — using proprietary machine learning models to review 50,000 companies weekly for sourcing and evaluation, with ticket sizes typically between $1 million and $2.5 million at seed.

Market

Moonfire competes in the pan-European pre-seed and seed market against firms including Atomico (its own origin story), Speedinvest, Frontline Ventures, AlbionVC, and Y Combinator, among others. Its stated differentiator is the AI-driven investment stack — combining ML-based sourcing with human judgment — which it positions as reducing geographic and network bias endemic to traditional VC. The broader market context in 2024-2025 has included valuation compression and more down rounds, while the convergence of private markets and digital assets — projected to exceed $30 trillion by the early 2030s — is shaping demand for the kind of regulated-market infrastructure Moonfire backed in Eunice.

Network

Mattias's most durable named relationship is Niklas Zennström, with whom he co-founded Atomico in 2006 — a connection that defined his first decade in venture. At Moonfire, his named partners include Mike Arpaia, who leads the firm's AI-driven investment approach, and Andrea Gurnari, hired as Investment Partner in 2023. He has also appeared in conversation with Giovanni Luperti of Humaans — a Moonfire portfolio company — on a Seedcamp podcast about the future of work.

Niklas Zennström· Co-founder, Atomico
Mike Arpaia· Partner, Moonfire Ventures
Andrea Gurnari· Investment Partner, Moonfire Ventures
Giovanni Luperti· Founder, Humaans

How they likely show up

Co-founded two firms from scratch (Atomico in 2006, Moonfire in 2019) rather than joining established platforms → defaults to building institutional infrastructure, not inheriting it.
Left Atomico at its peak (over $2 billion AUM) to start over at seed → comfortable with optionality cost; bets on the early phase rather than managing scale.
Moonfire's stated model — reviewing 50,000 companies weekly via ML — suggests a systems-thinking orientation: he wants process and data to surface what human networks miss.
Consistent public speaking across DLD, SXSW London, Station F, Startup Grind, and Tech Spirit Barcelona → comfortable in front of any audience; sees thought leadership as part of the job, not a side activity.
Possibly — the Medium farewell post to Atomico, written candidly rather than via PR, suggests someone who processes major transitions publicly and values directness over institutional messaging.

Conversation tips

→ Reference the Atomico farewell post specifically — it's a candid document and shows you've done more than a LinkedIn skim.
→ Ask about the AI-driven sourcing model in concrete terms (50,000 companies a week is a big claim) — he'll have a real answer and will likely enjoy the specificity.
→ He's been building in European VC since 2006; frame any question about the European ecosystem relative to that full arc, not just the post-2020 boom.
→ Don't conflate Moonfire with a traditional seed fund — the technology-company framing is deliberate and he'll notice if you treat it as a standard two-partner seed shop.
→ If you know Humaans, Lightdash, or GOALS, name one — portfolio specifics signal genuine interest faster than fund-level generalizations.

Toolbox

Openers

Open on the Eunice investment in March 2026 — Moonfire led an $8 million round for a company building due diligence infrastructure for regulated markets, which is a pointed thesis about where AI needs to earn institutional trust rather than just speed things up.
Reference his Medium post 'Farewell Atomico, Hello Moonfire' — it's a rare piece of candor from a VC about why you'd walk away from $2 billion AUM to start again at pre-seed, and it tells you a lot about how he thinks about risk and institutional momentum.
Bring up the SXSW London 2026 appearance on founder ecosystems — it's his most recent public platform, and asking what he said there (or what surprised him) is a natural warm opener that shows you tracked the current stuff.

Discovery questions

The 50,000-companies-a-week sourcing claim is striking — what does the ML model actually surface that a traditional network misses, and has the quality of those leads shifted how you allocate partner time?
You left Atomico when it had over $2 billion under management to go back to pre-seed — what did you see at scale that made you want to operate at the earliest stage again?
Moonfire's thesis spans health, future of work, finance, and gaming — four pretty different verticals. How do you avoid being spread too thin, and do the ML models help you maintain conviction across domains or do you still rely on sector specialists?

Avoid

Don't treat Atomico as ancient history — he co-founded it and shaped it for over a decade, and framing it as merely a credential rather than a formative institution will read as underprepared.

Make it yours