London, United Kingdom · Venture CapitalAccel is a top-tier global venture capital firm with a dedicated European team based in London. Established in Silicon Valley in 1983, Accel expanded to London in the early 2000s and has since become a leading backer of European tech unicorns. The Accel London fund invests broadly in consumer and enterprise technology companies from seed through growth stage. Accel’s Europe portfolio reads like a who’s-who of success stories – it was an early investor in Spotify, Facebook, and Slack, and in Europe it has funded Klarna, Hopin, and Cazoo among others. For example, Accel’s London team led rounds in Hopin (virtual events) and Klarna (fintech), both of which achieved multibillion-dollar valuations. The firm often takes board seats and provides hands-on support to founders in scaling globally. Accel is known for its deep network in Silicon Valley and Europe, helping bridge entrepreneurs to US markets. It manages multiple funds dedicated to Europe, including Accel London and Accel Europe, and typically invests from Series A onward (with selective seed bets). Notably, Accel was the first Silicon Valley VC to establish a permanent presence in London, reflecting its conviction in Europe’s tech potential. With over three decades of VC experience, Accel has the distinction of having backed over 100 unicorns worldwide. Its London arm continues to actively invest across sectors – from fintech and SaaS to cybersecurity and web3 – making Accel a cornerstone investor in Europe’s startup ecosystem. In short, Accel (London) combines global reach with local insight, helping Europe’s breakout startups scale to international success.
Venture CapitalSeed to GrowthGeneralistTechnology
Stockholm, Sweden · IncubatorGovernment-backed investor and Sweden's most active seed fund with regional coverage.
IncubatorPre-Seed to Series AGeneralistICTLife Sciences
London, United Kingdom · Venture CapitalAtomico is a leading European venture capital firm founded in 2006 by Niklas Zennström, the co-founder of Skype. Headquartered in London with roots in Stockholm, Atomico focuses on backing ambitious tech founders across Europe at Series A and beyond. The firm manages several billion dollars across multiple funds and has built a portfolio of household names. Atomico’s approach leverages Zennström’s global experience – the firm often helps startups expand internationally and recruits senior talent via its notable “Executive-in-Residence” program. Atomico has invested in companies spanning fintech, deep tech, software, and consumer internet. Notable successes include Klarna (the Swedish fintech giant), Supercell (Finnish gaming, acquired by Tencent), Graphcore (UK AI chips), and MessageBird (Netherlands communications platform). Atomico was also an early backer of Stripe in the US and Viagogo. The firm is known for publishing the annual “State of European Tech” report, reflecting its thought leadership in the ecosystem. In terms of investment size, Atomico typically leads or co-leads Series A–C rounds with cheques of $5–$50 million, and it has the capacity to follow-on through later stages. It closed its fifth fund of $820 million in 2020 and a $1.2 billion fund in 2022, underscoring investor confidence in European tech. Atomico’s team includes partners with experience at Google, Uber, Spotify, and more – providing operational support to portfolio founders. The firm also stands out for its commitment to sustainability and diversity, integrating impact considerations and backing companies tackling climate change. Atomico’s influence is evidenced by the fact that as of 2025 it has produced five IPOs and multiple $10B+ exits in Europe. In summary, Atomico has established itself as a premier VC “built by founders for founders,” fueling Europe’s ascent with capital, expertise, and global networks.
Venture CapitalSeries A+GeneralistTechnology
Vienna, Austria · AcceleratorLaunched 2013. Federal venture fund co-investing in Austrian high-growth startups with long-term local support.
AcceleratorLate Seed to Series ATechnologyGeneralist
Stockholm, Sweden · IncubatorFounded 2016. Seed fund focused on overlooked founders and underserved markets.
IncubatorSeedGeneralistConsumerEnterprise
London, United Kingdom · Venture CapitalBalderton Capital is one of Europe’s most established venture capital firms focused on early-stage technology companies. Based in London, Balderton was founded in 2000 as the European arm of Benchmark Capital and became independent in 2007. It has since raised ten funds dedicated to European startups, with over $4 billion in assets under management. Balderton primarily invests at Series A, typically leading rounds of $5–15 million and taking significant minority stakes. The firm’s portfolio spans a wide range of sectors – from fintech and marketplaces to SaaS and gaming – reflecting Europe’s diversity. Notable investments include Revolut (fintech, which Balderton backed at Series A), The Hut Group (UK e-commerce, now public), Darktrace (cybersecurity, IPO 2021), MySQL (acquired by Sun Microsystems), Citymapper (urban transport app), GoCardless (payments) and Vestiaire Collective (fashion resale). Balderton has consistently been among the most active Series A investors in Europe; in 2022 it deployed capital into 20+ new companies and many follow-ons. The firm is known for its strong founder support and an ethos of “teamwork” – all partners share carry evenly, which encourages collective input on portfolio companies. General Partners like Bernard Liautaud (founder of Business Objects) and Suranga Chandratillake (founder of Blinkx) bring operator experience. In recent years Balderton also launched a liquidity fund to buy secondary shares from European tech founders and early employees, reflecting a maturing ecosystem. The firm has also been vocal on issues like startup diversity and European tech sovereignty. With successes such as Revolut’s rise to $33B valuation and Darktrace’s IPO (Balderton held ~18% at listing), Balderton has proven that European VCs can deliver world-class returns. It continues to invest actively across Europe – from Stockholm to Tel Aviv – aiming to partner with founders “with global ambition.” In the constellation of European VC, Balderton Capital is often mentioned alongside Accel and Index as the top choice for Series A funding, thanks to its track record and deep network built over two decades.
Venture CapitalSeries A to GrowthGeneralistTechnology