PitchBook Report: Quantum Computing Companies Raised Record $3.9 Billion in 2025 VC Funding, Investment Accelerating

June 28, 2026

PitchBook USA

Overview

A PitchBook report indicates that quantum computing companies raised a record $3.9 billion in VC funding across 127 deals in 2025, with venture-growth investment surging significantly. This trend shows increasing capital flowing into the sector as engineers actively address reliability challenges. Notable rounds include Quantinuum’s $838.9 million Series B and PsiQuantum’s $1 billion raise, with significant liquidity events also observed in Q1 2026, highlighting robust investor confidence and rapid industry maturation.

In Depth

Key Findings

A recent PitchBook report reveals an unprecedented acceleration in investment within the quantum computing sector. In 2025, quantum computing companies collectively raised a record $3.9 billion in venture capital (VC) funding across 127 deals. This strongly suggests that quantum computing is transitioning from a purely research-oriented phase to a stage of active commercialization and practical application.

Technical / Clinical Details

Surge in Investment: The $3.9 billion raised in 2025 represents a substantial increase compared to previous years, with a particularly noticeable surge in venture-growth investments. This indicates that significant capital is being channeled not only into early-stage startups but also into more mature companies nearing commercial readiness.
Addressing Reliability Challenges: The report points out that this surge in investment coincides with the engineering community’s dedicated efforts to tackle the reliability and stability challenges inherent in quantum computers. Progress in error correction techniques and improvements in system fidelity are particularly highlighted as key drivers for this increased investor confidence.
Major Funding Rounds:
- Quantinuum: Successfully completed a massive Series B round of $838.9 million, accelerating its quantum computer development and commercialization efforts.
- PsiQuantum: Secured a substantial $1 billion in funding, aimed at developing utility-scale, fault-tolerant quantum computers.
Q1 2026 Trends: The first quarter of 2026 also witnessed several significant liquidity events (e.g., IPOs and M&As), further indicating a vibrant and dynamic market.

Background & Context

While quantum computing holds the potential to revolutionize fields such as drug discovery, materials science, financial modeling, and artificial intelligence, its complexity and inherent technical uncertainties have historically limited large-scale investments. However, a series of technological breakthroughs, particularly in qubit stability and error correction, have heightened expectations for practical deployment. Governments worldwide are also increasing investments in quantum technology for national security and economic competitiveness, creating a positive feedback loop that attracts further private investment.

Strategic Significance & Outlook

The record-breaking investments in the quantum computing sector signal that the development of more powerful and stable quantum computers will accelerate in the coming years. This will expedite the realization of quantum advantage in specific industries and lead to the emergence of new products and services in the market. As innovation progresses across hardware, software, and application development layers, quantum computing is expected to become a major technology that pushes the boundaries of existing science and technology, bringing significant societal transformations.

Source: https://pitchbook.com/news/articles/inside-quantum-computings-record-setting-investment-run

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