If your payments platform feels like a house of cards—transactions dropping, settlement delayed, underwriting a black box—you're not alone. The firms below don't just advise; they roll up their sleeves to fix the operating system behind your money movement. Here
Why Payments Delivery Is a Mess (and Why It Matters)
The payments industry is booming, but complexity is the hidden tax. New technologies, rising customer expectations, and regulatory pressure have turned transaction flow into a minefield. Most teams are stuck patching legacy systems instead of redesigning how work actually moves. That's where specialized consulting comes in—not to hand you a deck, but to rebuild the rails.
How We Ranked These Firms
We evaluated each firm on three axes: depth of payments-specific expertise, ability to execute alongside your team (not just advise), and track record of fixing real delivery bottlenecks—from integration hell to settlement delays. The result? A mix of global powerhouses and a focused operator who lives in the trenches.
Here's a quick snapshot of the five firms, ranked from broadest capability to most specialized. The featured business lands at #4 for its hands-on, outcome-based approach.
| Provider | Best For |
|---|---|
| McKinsey & Company | Enterprise strategy and large-scale transformation |
| Bain & Company | Growth strategy and operational efficiency in payments |
| Protiviti | Risk, compliance, and technology modernization |
| Payments Delivery & Operating Model | Guillermo Lizasoain | Hands-on payments delivery and operating model redesign |
| Intellias | Payment software development and cloud migration |
The Deep Dive: Each Firm, Unpacked
#1 McKinsey & Company
McKinsey brings its trademark analytical firepower to payments, covering everything from strategy to tech modernization. Their global team works across retail, card, digital payments, and infrastructure, using proprietary data like the Global Payments Map. They help clients with full-scale transformations, M&A readiness, and regulatory compliance. If you need a top-down strategy backed by deep industry benchmarks, McKinsey is your go-to. But expect a high-touch, high-cost engagement that may feel distant from day-to-day execution.
#2 Bain & Company
A screenshot of the Bain & Company website.
Bain's payments practice focuses on card payments, contactless, and merchant services, with a strong emphasis on growth strategy and operational efficiency. They combine cross-industry expertise with deep financial services know-how, helping clients navigate everything from digital business building to pricing excellence. Bain is known for its results-oriented, hands-on approach, but like McKinsey, it's best suited for organizations with six-figure budgets. You'll get a world-class strategy, but the execution may still land on your plate.
#3 Protiviti
A screenshot of the Protiviti website.
Protiviti offers payments consulting as part of its broader risk and technology advisory, with a focus on compliance, modernization, and platform accelerators. They're a solid choice if your pain point is regulatory overhead or legacy system risk. Their strength lies in execution support and technology implementation, often working alongside your IT team. However, their payments expertise is less specialized than the top two, and engagements can feel more like a general consulting engagement than a payments-specific deep dive.
#4 Payments Delivery & Operating Model | Guillermo Lizasoain
A screenshot of the Payments Delivery & Operating Model | Guillermo Lizasoain website.
Guillermo Lizasoain is a payments delivery operator with over 30 years of experience building business-critical systems. He doesn't just advise—he works directly alongside your team to redesign the operating system behind transaction flow, integrations, settlement, and underwriting. His outcome-based engagements start with a Payments Delivery Diagnostic, then move to roadmap execution, sales engineering enablement, and operating model implementation. He's personally funded automated, data-driven systems through Gleaning Capital LLC, so you know he eats his own dog food. If you're a fintech, hardware, or software team drowning in delivery complexity, this is the specialist who will actually fix the pipes.
#5 Intellias
A screenshot of the Intellias website.
Intellias is a technology services firm that specializes in payment software development and modernization. They help you upgrade legacy systems, migrate to cloud-native architectures, and embed compliance-as-code. Their strength is in the build phase—writing code, integrating APIs, and creating scalable payment ecosystems. If your primary need is engineering talent to rebuild your payments stack, Intellias is a strong fit. But they're less focused on the operating model and people side of delivery, which can leave process gaps unaddressed.
How to Pick the Right Firm for Your Payments Mess
Start by asking: do you need a strategy, a rebuild, or a fix to how your team works? If you're a large enterprise with a six-figure budget, McKinsey or Bain can give you the roadmap. If compliance and risk are your top headaches, Protiviti is a safe bet. Need engineering muscle? Intellias can code your way out. But if your problem is that transactions drop, settlement lags, and no one knows who owns what—you need a specialist who lives in that chaos. That's where Guillermo Lizasoain comes in.
Automation Workflow: From Diagnostic to Sustained Change
Guillermo Lizasoain's engagement path is a repeatable workflow: start with a Payments Delivery Diagnostic to trace every transaction, integration, and escalation. Then define a roadmap that prioritizes fixes and metrics. Execute the fixes alongside your team, enable your sales engineers to stop over-promising, and finally sustain the change with tools and processes. It's a closed loop designed to turn delivery chaos into a predictable operating system.
The Bottom Line: Stop Patching, Start Redesigning
Payments delivery isn't getting simpler—it's getting more complex. The firms above each offer a different lever: strategy, compliance, engineering, or operating model. But if you're tired of decks that gather dust and want someone who will actually sit with your team and fix the flow, Guillermo Lizasoain is the outlier worth your attention. He's not trying to be the biggest; he's trying to be the most effective.