Quantum Computing Investment Soars as Quantonation Ventures Closes €220 Million Fund, Defying "Quantum Winter" Predictions

Despite quantum computing not being poised to replace supercomputers or reach industrial scale by 2026, investor appetite for companies pursuing "quantum advantage" has significantly increased. This elusive milestone, where quantum machines demonstrably outperform classical computers for specific, practical problems, continues to fuel robust investment in the nascent yet promising field.

This strong confidence is particularly evident in Quantonation Ventures, a venture firm specializing in quantum and physics-based startups, which recently announced the successful closure of its second fund. Oversubscribed at €220 million (approximately $260 million USD), this fund is more than twice the size of its inaugural fund. This achievement serves as a strong indicator that the anticipated "quantum winter"—a period of funding collapse due to unfulfilled promises—is not imminent.

Warnings of a "quantum winter" stemmed from concerns that excessive hype without tangible outcomes would eventually cause funding to dry up. Predictions like quantum computing cracking modern encryption, often lacking clear timelines for realization, were frequently cited as examples of overpromising. Yet, contrary to these warnings, governments globally and major technology companies ("Big Tech") have intensified their involvement in the quantum race, demonstrating a strategic, long-term commitment to the technology that transcends immediate commercial returns.

Since Quantonation’s launch in 2018, the quantum technology sector has matured considerably from an incipient field. This evolution is marked by significant technological breakthroughs and a growing early demand from both academic institutions and industrial laboratories. This shift has consequently reshaped the investment landscape, leading to "a shift in the types of investment opportunities that are available" to their second fund, as noted by Quantonation partner Will Zeng to TechCrunch.

A key opportunity Zeng highlighted is the "picks and shovels" approach: investing in foundational technologies that support the broader quantum industry, rather than solely in core quantum processors. Dutch startup Qblox exemplifies this strategy. The company develops quantum control hardware and software, which are crucial components for the precise manipulation and measurement of quantum bits (qubits). Qblox was already supplying its advanced solutions to several companies within Quantonation’s portfolio before the VC firm co-led its Series A funding round, illustrating the strategic value of investing in core infrastructure.

This expanding ecosystem, coupled with the inherent complexities of the technology, explains the continued backing for Quantonation and the emergence of other dedicated quantum funds, such as QDNL and Denmark’s 55 North. Early-stage quantum investment is challenging due to its highly specific and complex nature. As Zeng stated, "VCs recognize that this is not an easy area to invest in at the early stage. The technology is very specific and complex, the markets are often new, and the teams as well," necessitating specialized expertise and patient capital.

Quantonation’s core investment thesis targets early-stage ventures to capture greater value as the technology matures. However, the public market has also shown recent surges, with several quantum companies going public and experiencing significant share increases. This "quantum frenzy," as reported by Bloomberg, is partly fueled by Nvidia, a leading player in high-performance computing, whose CEO Jensen Huang declared in June 2025 that "quantum computing is reaching an inflection point," reinforcing perceptions of imminent breakthroughs.

Despite quantum chips not yet consistently outperforming classical computers outside of highly specific, purpose-built benchmarks, a consensus is growing that real-life applications are only a few years away. These applications are anticipated across diverse fields, from accelerating drug discovery and materials science to revolutionizing financial modeling. This progress is largely attributed to advancements in error correction—the vital ability to detect and fix the inherent mistakes quantum systems are prone to, which remains a major hurdle for developing stable and reliable quantum computers.

Google’s Willow chip marked a landmark achievement in error correction in 2024, demonstrating significant progress in managing quantum errors, though no single quantum architecture has yet emerged as dominant. The competition remains fierce, with numerous smaller players actively developing novel quantum chip designs and error mitigation techniques. Zeng also noted strong participation in DARPA’s Quantum Benchmarking Initiative, a program aimed at rigorous evaluation, adding that "there are more exciting technologies that are currently private" beyond the public market excitement.

For Quantonation, these private opportunities extend beyond just quantum chips. Fund II has already invested in 12 startups, targeting a portfolio of approximately 25 companies. Its expanded thesis covers not only the software and industrial layers necessary for achieving quantum advantage but also adjacent physics-based technologies, including photonics, which uses light, and advanced lasers. This holistic approach supports the entire quantum ecosystem, from core computing to critical enabling technologies.

This expanded thesis and Quantonation’s proven track record have drawn strong support from both returning and new limited partners (LPs). Major investors from the first fund, including Singapore’s Vertex Holdings and Bpifrance’s Fonds National d’Amorçage 2, have recommitted. New limited partners include the European Investment Fund, Grupo ACS, Novo Holdings, Planet First Partners, and Toshiba, providing a diverse base of institutional, corporate, and strategic capital.

Quantonation’s geographic scope is equally international, with dual headquarters strategically located in Paris, France, and New York City, USA. The firm has backed prominent French quantum companies like Pasqal, a leader in neutral atom quantum computing, and Quandela, specializing in photonic quantum computing. It continues to invest in ventures across Asia and North America. As Zeng explained, "In a lot of the areas we invest in, there’s not yet a clear regional winner, […] and a lot of the research has come from universities in many places," necessitating a global investment strategy to identify top talent and innovation.

In conclusion, the quantum technology sector is experiencing a period of robust investment and rapid development, challenging