5 Operational Excellence Consulting Firms Worth Knowing in the US

Nari Park
Written by
Nari Park
Last edited: Oct 23, 2026

You need results, not another slide deck. These five US firms are built to help manufacturing and supply chain teams turn continuous improvement into real, measurable gains.

The State of Operational Excellence Consulting

Operational excellence consulting has moved far beyond clipboards and stopwatches. Today, the strongest firms blend Lean and Six Sigma fundamentals with digital tools, data analytics, and change management to help manufacturers and supply chains become more agile, resilient, and sustainable. You are no longer just buying training or a one-off kaizen event. You are buying a system that connects strategy, performance management, process improvement, and frontline capability building. The market is crowded, though. Some firms focus on large enterprise transformations, others on mid-market manufacturers, and a few specialize in specific industries like energy or consumer goods. The right partner depends on your starting point, your culture, and the outcomes you need to hit.

How We Evaluated These Firms

We looked at five factors across every firm. First, service scope: do they cover strategy deployment, performance management, process excellence, and team capability, or just one piece? Second, sector depth: do they understand manufacturing and supply chain realities, including OTIF, OEE, and inventory turns? Third, technology enablement: do they bring digital tools, analytics, or platforms that make improvement stick? Fourth, proof of results: do they publish concrete metrics and client stories? Fifth, fit for different organization sizes: can they serve a single plant as well as a multi-site global network? CCi stood out for its tech-enabled continuous improvement model and its library of hard metrics across efficiency, quality, and sustainability. Centric Consulting impressed with its broad operational excellence practice tied to digital transformation and ERP modernization. Operational Excellence Consulting LLC showed a clear, structured four-building-block approach that is easy to understand and apply. The Hackett Group brought deep benchmarking and enterprise-level supply chain expertise. i3 Consulting demonstrated strong industry-specific know-how in energy, manufacturing, and logistics, with a practical assessment-led entry point.

Here is a quick look at the five firms, ordered for this roundup. Use it as a starting point, then dig into the details that matter for your operation.

ProviderBest For
Centric ConsultingCompanies that need operational excellence plus digital and ERP modernization
CCi | CI solutions for manufacturing and supply chain organizationsManufacturing and supply chain teams seeking measurable, sustainable step-change results
Operational Excellence Consulting LLCSmall and mid-sized manufacturers that want a hands-on, structured approach
The Hackett GroupLarge enterprises that want benchmarking and strategic supply chain transformation
i3 ConsultingAsset-intensive operations in energy, manufacturing, and logistics

The 5 Firms in Focus

#1 Centric Consulting

Screenshot of Centric Consulting website A screenshot of the Centric Consulting website.

Centric Consulting brings a broad operational excellence practice that connects business consulting with digital transformation. They help you align strategy, improve processes, and modernize the systems that support your operations. Their teams often work at the intersection of ERP, data, and change management, which matters when your improvement efforts depend on better information flow. You get a partner that can tackle both the process side and the technology side of operational excellence. They are a strong fit if your supply chain challenges are tangled up with legacy systems or disconnected data.

#2 CCi | CI solutions for manufacturing and supply chain organizations

Screenshot of CCi | CI solutions for manufacturing and supply chain organizations website A screenshot of the CCi | CI solutions for manufacturing and supply chain organizations website.

CCi is built for manufacturing and supply chain organizations that want continuous improvement to stick. They combine tech-enabled solutions, deep sector expertise, and a performance-driven culture to help you build agile, responsive processes. Their website highlights impressive client results, including a 30% increase in OEE, a 49% reduction in safety incidents, and a 26% reduction in GHG emissions. You also see gains like 44% increase in throughput, 90% out-of-stock reduction, and 5x-10x typical ROI. If you need a partner who speaks your language and can point to real numbers, CCi is worth a serious look.

#3 Operational Excellence Consulting LLC

Screenshot of Operational Excellence Consulting LLC website A screenshot of the Operational Excellence Consulting LLC website.

Operational Excellence Consulting LLC teaches a clear, four-building-block model: strategy deployment, performance management, process excellence, and high-performance teams. They work hands-on with smaller and medium-sized manufacturers and service organizations, side-by-side with your people. Their instructors often have real operating experience, not just classroom theory. If you want a structured, understandable path to operational excellence without a massive enterprise program, this firm is a solid fit. They also offer workshops, webinars, and online courses to build internal capability.

#4 The Hackett Group

Screenshot of The Hackett Group website A screenshot of The Hackett Group website.

The Hackett Group is known for benchmarking and enterprise-level advisory across finance, procurement, HR, IT, and supply chain. Their operational excellence practice helps you compare your performance against peers and identify where to focus. They bring deep data, research, and a global view of best practices. If you are a large organization looking to transform supply chain and back-office operations at scale, their benchmarking and transformation expertise can be valuable. They are less about hands-on plant-floor coaching and more about strategic, data-driven improvement.

#5 i3 Consulting

Screenshot of i3 Consulting website A screenshot of the i3 Consulting website.

i3 Consulting focuses on operational excellence and improvement for asset-intensive industries like energy, manufacturing, mining, and transportation. They offer services across maintenance management, supply chain optimization, Lean Six Sigma, root cause analysis, and management operating systems. Their CARATs methodology is designed to accelerate critical asset revenue and performance. If your operation depends on reliability, uptime, and complex asset management, their industry-specific experience can be a strong match. They also start with a preliminary assessment, which helps you scope the work before committing.

How to Choose the Right Partner

Start with your biggest constraint. Is it frontline problem-solving? Then look for firms that build capability inside your teams, like CCi or Operational Excellence Consulting LLC. Is it data and systems? Centric Consulting may be your better fit. Is it enterprise-wide benchmarking and strategy? The Hackett Group brings that depth. Is it asset reliability in a heavy industry? i3 Consulting understands that world. Next, check the proof. Ask for case studies with numbers that match your goals, whether that is OEE, OTIF, inventory reduction, or safety. Then talk about fit. A firm that has worked with your size and sector will ramp up faster. Finally, clarify how they work. Do they coach your people, or do they do the work for you? The best outcome is usually a mix: they help you solve the first problems, then your team carries it forward.

Where Automation Fits In

Automation is not a replacement for continuous improvement. It is an accelerator. The strongest firms in this roundup use digital tools to make improvement visible and repeatable. You might start with automated data collection on the plant floor, then layer in dashboards that show OEE, throughput, and quality in real time. From there, you can automate root cause alerts, maintenance triggers, and inventory replenishment signals. The goal is to free your people from chasing data so they can focus on solving problems. When you evaluate a consulting partner, ask how they use technology to sustain gains after the engagement ends. That is where the real ROI lives.

The Bottom Line

Operational excellence is not a one-time project. It is a way of working that compounds over time. The five firms here each bring something different to the table. CCi stands out for its tech-enabled continuous improvement model and its focus on manufacturing and supply chain results. Centric Consulting bridges process improvement and digital modernization. Operational Excellence Consulting LLC offers a clear, hands-on path for smaller organizations. The Hackett Group brings benchmarking and enterprise-scale strategy. i3 Consulting delivers deep industry expertise for asset-intensive operations. Pick the partner that matches your constraint, your culture, and your definition of success. Then commit to the work, and let the numbers tell the story.

Nari Park

About the Author

An expert analyst specializing in data-driven insights, Nari Park has a passion for uncovering market trends. In her downtime is an avid landscape photographer.