An Experienced ERP Team Built Around Client Advocacy
John Hannan LLC brings together former corporate executives, operational leaders, and experienced ERP professionals who average 25 years of experience. Based across the United States and Canada, our team supports clients in every North American time zone and brings senior-level perspective to ERP software selection and implementation for manufacturing, distribution, and life sciences companies.
Our lean delivery model keeps experienced consultants close to the client without the layers of a large consulting firm. That allows more of the client’s investment to go toward experienced ERP work while providing direct access to leaders focused on client advocacy, vendor accountability, and business outcomes across the broader ERP ecosystem.
ERP Experience Built from Operations, Manufacturing, and Consulting
John Hannan LLC was started in 2020 with a simple mission to help mid-market manufacturing, distribution, and life sciences companies buy the right ERP, turn that choice into a working business system, and have someone in the room advocating solely for the client’s interests. Throughout John’s career, he saw this advocacy role as a major gap. Companies were making high-stakes system decisions without always having the time, structure, or deep ERP expertise needed to evaluate fit, cost, implementation risk, and long-term business impact. Vendors and integrators naturally had their own commercial objectives, while internal stakeholders were often balancing competing priorities. John Hannan LLC was created to give buyers a client-side advocate who can bring discipline to the process, challenge assumptions, protect the decision, and help ensure the selected ERP supports how the business actually works.
Before launching John Hannan LLC, John spent two decades on factory floors and in boardrooms. John is an industrial engineer by training and has worked hands-on in safety, quality, production planning, costing, and forecasting, as well as delivering and overseeing over a hundred ERP programs to a successful go-live. That mix of operations first and software second is the foundation of John Hannan LLC. We translate real-world business requirements into a defensible ERP decision and hold vendors and integrators to that standard through go-live.
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Today, most of our work comes from referrals. Executives who’ve worked with us bring us back when they change companies because we reduce risk, create leverage with vendors, and keep projects moving on schedule.
EARLY ROOTS IN OPERATIONS
At 16, John went to work at Wegmans Food Markets. Over nearly seven years, he moved from carts and cashier to front-end coordinator in a management internship, learning workforce planning the hard way—scheduling 100+ part-time employees against store traffic, while rotating through every department to understand service, flow, and what “good” looked like on the floor.
AN ENGINEERING & MANAGEMENT FOUNDATION
John earned a degree in Engineering and Management from Clarkson University, where he built the analytical foundation that continues to shape his ERP consulting approach. That background helps him evaluate business systems through both an operational and financial lens, including cost, capacity, throughput, workflow efficiency, and the practical tradeoffs that come with system and process decisions.
FROM MANUFACTURING OPERATIONS TO ERP PROGRAM LEADERSHIP
After graduation, John joined Oldcastle, a multibillion-dollar manufacturer, where his responsibilities spanned safety, production planning, quality, forecasting, and standard costing. When Oldcastle launched an ERP program, he moved into the project as the manufacturing subject matter expert and later became a deployment lead, helping roll out a standardized ERP solution across multiple acquired businesses. That experience showed him firsthand that every plant operates differently, and that an ERP rollout only succeeds when the software and implementation approach reflect how the business actually runs.
SCALING ERP CONSULTING ACROSS THE US
John spent ten years in consulting, most notably helping launch and scale a Microsoft Dynamics practice at a large public accounting firm from its early inception to more than 300 people across the United States. As he advanced in the organization, his role shifted further away from solving client problems and closer to managing utilization, staffing, and internal performance metrics. That shift reinforced what he valued most about ERP consulting, which was working directly with clients, understanding their business challenges, and helping them make system decisions that could improve how the business operates.
Building a Vendor-Neutral, Client-Side ERP Firm
John opened his consulting firm to stay on the client side, remain vendor-neutral, and focus on the work that changes ERP outcomes, including thoughtful ERP software selection and hands-on client-side program leadership through go-live. Since 2020, John Hannan LLC has supported 500+ manufacturing and distribution locations across discrete, make-to-order, project-based, and regulated environments, often stepping in to help correct scope, sequence, governance, or incentives so projects can finish stronger.
ERP Support Across the US and Beyond
John Hannan LLC is based in Lake Ariel, Pennsylvania and Philadelphia, Pennsylvania, and supports clients across North America and Europe. Most work is delivered virtually, with targeted on-site sessions for discovery, plant walks, vendor demos, and cutover. For companies weighing an ERP decision, preparing to begin an implementation, or trying to get a project back on plan, John Hannan LLC provides vendor-neutral selection guidance and client-side implementation support designed to align incentives, protect the business, and create a practical path forward.
Why Companies Bring John Hannan LLC Into ERP Decisions
Without John’s guidance on ERP selection and negotiations, we simply couldn’t run the business we have today. He helped us translate our high-level requirements into specific selection criteria, zero in on our real pain points, guide us through focused demos, and structure a strong contract.
Jim Jenkins, Chief Financial Officer at Essex Finishing
FAQs
What is a vendor-neutral, client-side ERP advisor, and why does that matter?
A vendor-neutral, client-side ERP advisor helps companies make and manage ERP decisions without selling software, representing a specific ERP vendor, or earning revenue from the system selected. John Hannan LLC works on behalf of the client across ERP software selection and implementation, bringing an independent perspective to vendor evaluation, challenging assumptions and tradeoffs, keeping vendors accountable, and protecting business requirements, investment, and long-term outcomes.
Who can help a mid-market company select ERP software & support their implementation?
John Hannan LLC helps mid-market manufacturing, distribution, and life sciences companies select ERP software and continue from the client side through implementation. The firm helps define requirements, evaluate software and implementation partners, challenge assumptions, coordinate critical decisions, and keep the ERP program aligned with how the business needs to operate.
How is a client-side ERP advisor different from an ERP reseller or implementation partner?
A client-side ERP advisor represents the company buying and implementing the system rather than any one software vendor or implementation partner. John Hannan LLC provides vendor-neutral guidance across the full ERP ecosystem, advocating for the client, connecting decisions across systems and vendors, and keeping the broader business outcome in focus from selection through implementation.