Quantum technology due diligence is an independent technical and commercial review of a quantum company before you invest in it, acquire it or partner with it. The Quantum Insider (TQI) builds the review on the TQI Intelligence Platform, which tracks 2,100+ quantum companies, so the work starts from verified data rather than a blank page.
Updated Q4 2026
What we check in a quantum company
Six workstreams cover the questions an investment committee or board asks. Each one separates what the company has shown from what it plans to show.
Technology readiness
Which modality the company builds, how its qubit quality and error rates compare with peers, what its error correction roadmap depends on, and which milestones are demonstrated rather than planned.
Team
Founder and scientific credentials, publication and patent record, key-person dependence, depth in hardware, software and fabrication, and whether earlier milestones were delivered.
IP and patents
Patent filings and grants, ownership and licensing from universities or national laboratories, and how the position compares with other filers. Patent data comes from the platform.
Competitive map
Where the company sits among peers in its modality and application area, classified under the platform’s quantum taxonomy, and which rivals or larger vendors could close the gap.
Market sizing
A bottom-up view of the market the company says it addresses, tested against our published market-size work and separated into near-term and long-dated revenue pools.
Commercial traction
Customers, pilots versus paid contracts, government funding, funding history and investors, and partnership announcements checked against what the partner has said publicly.
Who commissions quantum due diligence
The buyers are people who have to commit capital or strategy to a quantum technology and need an answer they can defend.
Venture and private equity investors
Investors checking a company before a round or an acquisition.
Institutional investors
Investors reviewing their exposure to the quantum sector.
Corporate development
Teams assessing an acquisition, a partnership or a vendor choice, where the question is which technology or modality to back.
What you receive
The output is an investment-ready report built for the decision at hand and written for the C-suite.
An investment-ready report
The six workstreams reported against the claims in the pitch deck or information memorandum, with the evidence behind each finding.
A decision to support
The report supports a decision to invest, acquire, partner or pass, and flags what to resolve before signing.
Platform data as the baseline
Company, peer, funding, patent and research data from the platform, so every comparison starts from the same dataset.
How a due diligence engagement runs
Every TQI engagement follows four stages and opens with a data pull from the TQI Intelligence Platform. For due diligence they work as follows.
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Baseline from the platform
We agree the decision and the questions the review must answer, then pull the company, peer, funding, patent and research baseline from the platform.
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Expert analysis
Consultants and PhD holders test the technical and commercial claims against that baseline and against your goals.
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Primary validation
Where needed we test findings with the market through expert interviews and stakeholder consultations.
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Decision-ready report
You receive an investment-ready report built for the decision at hand and written for the C-suite.
The consulting page states that focused due diligence on a single company or technology typically runs in weeks. The timeline for a specific deal depends on scope, access to the target’s data room and the number of expert interviews needed.
2,100+Quantum companies on the TQI Intelligence Platform
200+Enterprise and government clients across TQI advisory and intelligence
2019Year TQI began covering the quantum sector
Company and client counts as stated on the TQI consulting page, as of Q4 2026.
Who does the work
The due diligence team combines commercial and technical expertise. It includes a strategy director who has led 20+ commercial due diligence and strategy projects for private equity clients, a chief of staff who has led commercial and technical due diligence for private equity funds, consultants and PhD holders, and a senior technical adviser with more than 40 years as an executive in aerospace and defense. Meet the advisory team.
Commercial depth
Market sizing, competitive positioning and deal experience from private equity and investment work.
Technical depth
Physicists and engineers who read the papers and test roadmap claims.
Platform analysts
The quantum-specialist analysts behind the TQI Intelligence Platform work alongside the advisers.
Published due diligence work
These examples are published on the TQI consulting page. Client names are withheld where noted there.
Commercial due diligence, space laser communications
Commercial due diligence on the Optical Communication Terminal market for a US space systems integrator ahead of a potential acquisition: market sizing, competitive field and target positioning.
Public advisory engagements
UK DSIT, UK Department for Transport, Chattanooga Quantum Collaborative, North Carolina, MassTech and QED-C are named on the consulting page.
Market-size work
TQI’s published guide to the size of the quantum computing market, used as one baseline for market sizing.
Quantum due diligence, answered
What is quantum technology due diligence?
It is an independent technical and commercial review of a quantum company, technology or investment, done before money or commitment changes hands. The review tests the claims in a pitch deck or information memorandum against evidence: published results, patents, customers, funding and the competitive field. The output is an investment-ready report that supports a decision to invest, acquire, partner or pass.
What does technical due diligence on a quantum computing company cover?
It checks which modality the company builds, what has been demonstrated versus what is on the roadmap, how performance compares with peers, and what stands between today’s system and the company’s stated milestones. It also covers the team’s record, the IP position, and dependence on research partners or suppliers.
Who provides quantum technology due diligence for investors?
TQI Advisory provides it, as technical and commercial due diligence on a specific company or technology. Other provider types include strategy and systems integration firms, and vendors, which carry a conflict when the question is which technology to pick. Our guide to quantum consulting firms sets out the groups.
How is quantum due diligence different from standard technology due diligence?
Quantum companies often have little revenue, and their value rests on technical milestones that few generalist reviewers can judge. A revenue-based template misses that. The review pairs technical judgment on modality and error correction with a commercial view of markets that mature at different speeds, and uses platform data on peers, patents and funding as the baseline.
How long does a quantum due diligence engagement take?
The TQI consulting page states that focused due diligence on a single company or technology typically runs in weeks. The timeline for a specific deal depends on scope, access to the target’s data room and the number of expert interviews needed. The team confirms timing when it scopes the work.
What does quantum due diligence cost?
Pricing is scoped individually, because a focused review of one company differs from a multi-technology portfolio review. Tell us the decision in front of you and the team will come back with a scoped proposal and options. There is no rate card on this page.
Sources
- The Quantum Insider, Quantum Computing Consulting & Advisory Services. Engagement types, four stages, client and company counts, and the six named engagements. As of Q4 2026.
- The Quantum Insider, How big is the quantum computing market.
Talk to a quantum expert
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