Beyond the Roadmap Slide: How a Global Bank Used Bespoke Research and IDIs to Decide Which Quantum Computing Use Cases Were Worth Funding Today

Executive Snapshot

Client

Global Investment Bank, Innovation & Emerging Technology Division

Situation/Challenge

The bank's innovation division had been approached by multiple quantum computing vendors, each presenting use cases across portfolio optimisation, risk modelling, and fraud detection. Internal champions argued for funding based on vendor benchmark results, but the division had no independent way to determine which use cases were genuinely close to delivering value versus years from practical relevance.

Objective

Commission bespoke research evaluating the genuine near-term readiness of quantum approaches against the bank's specific use cases, then conduct structured IDIs with hardware providers, algorithm developers, and peer institutions to test vendor claims against independent reality.

Constancy Researchers Solution

Customized Research combined with Primary Research & VoC through In-Depth Interviews (IDIs) — bespoke technical readiness research mapped against the bank's specific use case candidates, paired with 30 structured IDIs across quantum hardware providers, algorithm developers, and peer institutions already running pilot programmes.

Impact

Bespoke research found that portfolio optimisation use cases were considerably closer to practical relevance on the bank's own problem scale than risk modelling or fraud detection applications. IDIs with peer institutions revealed that several publicly announced quantum pilots had not progressed beyond proof-of-concept despite vendor marketing suggesting otherwise.

Client Outcome

The innovation division concentrated its funding on a single portfolio optimisation pilot rather than the broader multi-use-case programme originally proposed, and adopted a more rigorous evaluation framework for assessing vendor claims on future quantum computing proposals.

The Situation / Challenge

Quantum computing occupies an unusual position in enterprise technology evaluation, where the gap between vendor-presented potential and genuine near-term value is unusually wide and difficult for a non-specialist organisation to assess. Benchmark results presented by vendors frequently describe performance on problem instances calibrated to favour the quantum approach, a different proposition from performance on the larger, messier problems an institution actually needs solved.

The client’s innovation division had been approached by several quantum vendors over eighteen months, each presenting compelling benchmark results across different use cases. Internal champions had emerged for portfolio optimisation, risk modelling, and fraud detection respectively, each citing vendor evidence that their preferred use case was the most promising. Leadership recognised it lacked the independent technical depth to evaluate these competing claims rigorously.

The risk of funding the wrong use case, or all three without prioritisation, was not merely financial — it was reputational, since a high-profile quantum pilot failing to deliver promised value would make future funding requests considerably harder to secure.

Key Challenges

  • No independent technical assessment evaluating quantum readiness against the bank’s own problem scale and data characteristics, rather than vendor-selected benchmarks
  • No structured way to compare the competing use case claims advocated internally for portfolio optimisation, risk modelling, and fraud detection
  • No direct intelligence from peer institutions running their own quantum pilots about what those pilots had genuinely achieved
  • Limited ability to distinguish vendor benchmark results favouring quantum approaches from results that would translate to actual production problem sizes
  • Internal champions for each use case, each citing real but partial vendor evidence, creating a funding debate without an objective resolution
  • Executive committee expectation that any funding request be supported by independent technical assessment rather than vendor benchmark claims alone

Enterprise quantum computing evaluation is particularly vulnerable to the gap between benchmark performance and production relevance. Independent assessment against an organisation’s own problem characteristics, combined with peer intelligence about what pilots have actually achieved, is frequently the only reliable way to separate genuine opportunity from premature vendor narrative.

Constancy Researchers Solution

Constancy Researchers structured the engagement to address both the technical readiness question and the credibility question simultaneously, evaluating quantum readiness against the bank’s own use cases and then testing vendor claims against peer experience.

Bespoke Technical Readiness Assessment Against Bank-Specific Use Cases
  • Conducted bespoke technical research evaluating current quantum hardware and algorithm readiness against the problem scale and accuracy requirements of the bank’s three candidate use cases.
  • Found that portfolio optimisation was considerably closer to near-term relevance at the bank’s actual scale, while risk modelling and fraud detection faced more substantial capability gaps.
In-Depth Interviews (IDIs) with Quantum Hardware Providers & Algorithm Developers
  • Conducted 12 IDIs with hardware providers and algorithm developers, including some not currently engaged with the bank, to understand technical progress independent of any single vendor’s incentive.
  • IDIs revealed technical consensus that portfolio optimisation problems at the relevant scale were within reach of near-term approaches, while fraud detection remained further from advantage than marketing suggested.
In-Depth Interviews (IDIs) with Peer Financial Institutions
  • Conducted 18 IDIs with innovation leaders at peer institutions running quantum pilots, exploring what those pilots had actually achieved against their original objectives.
  • Found that several publicly announced pilots had not progressed beyond proof-of-concept despite public communications suggesting more progress, giving the bank a realistic external benchmark.
Vendor Claim Verification & Benchmark Credibility Assessment
  • Cross-referenced vendor benchmark results against the technical assessment and IDI findings to identify where claims aligned with evidence and where they reflected favourable framing.
  • Identified specific instances where vendor benchmark problems had been constructed in ways that would not translate to the bank’s actual production characteristics.
Use Case Prioritisation & Funding Recommendation
  • Synthesised findings into a clear prioritisation, recommending concentrated funding on portfolio optimisation and deferred funding for the other two applications pending further maturation.
  • Delivered a revised vendor evaluation framework incorporating lessons from peer institution experience and benchmark credibility assessment.

The engagement gave the innovation division what eighteen months of vendor presentations had not — an evidence-based basis for distinguishing genuine opportunity from premature narrative.

Impact

  • Bespoke research confirmed portfolio optimisation as considerably closer to practical relevance than the other two candidate use cases
  • Hardware provider and algorithm developer IDIs provided independent technical consensus not tied to any single vendor’s incentive
  • Peer institution IDIs revealed several publicly announced pilots had not progressed beyond proof-of-concept, providing a realistic benchmark
  • Vendor benchmark verification identified specific instances of demonstration problems constructed to favour quantum approaches
  • The use case prioritisation concentrated funding on the candidate with the strongest independent evidence of near-term relevance
  • Risk modelling and fraud detection funding was deferred pending further maturation rather than funded on vendor claims alone
  • The innovation division adopted a revised evaluation framework informed by peer institution experience and benchmark findings
  • The bank avoided the reputational risk of funding a high-profile pilot unlikely to deliver promised value within a credible timeline

Client Outcome

Funding Concentration

Funding was concentrated on the single use case with the strongest independent evidence, rather than spread across three competing candidates.

Risk Avoidance

The bank avoided committing resources to use cases research and IDIs showed remained considerably further from practical value.

Vendor Evaluation Discipline

A revised framework now allows the division to identify benchmark results constructed to favour vendor narratives.

Peer Benchmark Reality

Direct intelligence from peer institutions gave the bank a realistic understanding of what quantum pilots actually achieve.

Technical Credibility

Independent hardware and algorithm developer perspectives gave the bank technical grounding not dependent on any vendor.

Internal Resolution

A funding debate between three internal champions was resolved with independent evidence rather than continued advocacy.

Pilot Focus

The portfolio optimisation pilot proceeded with a clearer, evidence-grounded expectation of what near-term success looks like.

Organisational Learning

The benchmark credibility lessons now inform how the division evaluates all emerging technology vendor proposals.

Market Positioning

The division was repositioned as a disciplined evaluator of technology claims rather than a receptive audience for vendor narratives.

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