About John Hannan LLC
John Hannan LLC provides ERP software selection and implementation advisory services to businesses needing an internal ERP advocate for their core business system in program, project and change management, solution architecture, and functional configuration and testing.
Background
I started John Hannan LLC in 2020 with the simple mission to help small and mid-market manufacturing, distribution and life sciences companies buy the right ERP and turn their choice into a working system and to be someone in the room advocating solely for the client’s interests. Throughout my career, I saw this advocacy role as a major gap because companies making high-stakes system decisions often lacked deep ERP expertise, while vendors, integrators, and internal stakeholders focused on their own objectives and financial performance.
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Before launching the firm, I spent two decades on factory floors and in boardrooms. I’m an industrial engineer by training and have 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 our company. 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, I went to work at Wegmans Food Markets. Over nearly seven years, I 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 I had to forecast, while rotating through every department to understand service, flow, and what “good” looked like on the floor.
ENGINEERING & MANAGEMENT
I studied Engineering & Management at Clarkson University, building the analytical base I still use today to model cost, capacity, and throughput.
FROM MANUFACTURERTO ERP PROGRAM LEAD
After graduation, I joined Oldcastle, a multibillion-dollar manufacturer. My daily job responsibilities spanned from safety and production planning to quality, forecasting, and standard costing. When Oldcastle launched an ERP program, I moved in as the manufacturing expert, then to a deployment lead rolling out a standardized ERP solution out across multiple acquired businesses. This is where I saw firsthand that every plant is unique and a rollout only succeeds when the software fits how the business actually runs.
A DECADE OF CONSULTING
I 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 US. The higher I moved up in the organization, the less time I spent solving client problems and the more I was managing utilization. That wasn’t why I got into this field.
Building John Hannan LLC
I opened my consulting firm to stay on the client side, remain vendor-neutral, and focus on the work that changes outcomes, including thoughtful ERP selection and hands-on client-side program leadership through go-live. Since 2020, we’ve supported 200+ manufacturing and distribution locations across discrete, make-to-order, project-based, and regulated environments, and often coming in to fix scope, sequence, or incentives so the project can finish strong.
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We’re based in Lake Ariel, PA and Philadelphia, PA, and support clients across North America and Europe. Most work is delivered virtually with targeted on‑site sessions for discovery, plant walks, demos, and cutover. If you’re weighing an ERP decision, getting ready to begin an implementation or trying to get an project back on plan, we can help you create a working plan or run a vendor‑neutral selection that aligns incentives and protects you long‑term.
