The Tool You Don't Own
A molder can run a program for 11 years, bill it every month, build the plant's whole rhythm around it, and never own the one object that makes it possible. The tool sits in your building. It shows up nowhere on your balance sheet. And the customer whose part it produces can send a truck for it on 90 days' notice.
Consigned tooling is normal, and in a lot of end markets it's the standard. The guidance that manufacturing lawyers put out, including the long-running write-ups from Harris Sliwoski on molds in contract manufacturing, describes the arrangement plainly: the customer pays to build the mold, the customer owns it, and when the relationship ends the customer has the right to take it to whichever molder they choose next. You paid for none of it and you can lose all of it. That's not a loophole. That's the deal most owners signed without reading it as the deal it is.
The trouble is that the tool is where the revenue lives. Move the mold and you move the program, the qualification, the tribal knowledge, the monthly invoice, all of it, and the customer can do it without buying a thing from you. Most owners treat this as background noise because the customer has never actually done it. The customer not having done it yet is not the same as you being safe.
What a buyer sees that you stopped seeing
Go to sell the company and the tooling question stops being background. It becomes one of the first things the other side prices.
CT Acquisitions, writing on how plastics businesses are valued heading into 2026, puts injection molding multiples in the range of roughly 4.5 to 6.5 times EBITDA, with private-equity consolidators paying more, into the high single digits, for platform-quality shops. But the same analysis is blunt about the spread: two molders with identical revenue can land 2 to 3 turns of EBITDA apart, and one of the adjusters that opens that gap is whether the tooling is owned or consigned. A buyer reads a program running on a customer-owned tool as revenue that can leave the building without anyone acquiring it. They don't refuse to pay for it. They pay for it in conditions instead of cash, with holdbacks and earnouts tied to those programs surviving the year after close.
You built that revenue. It's real. But revenue that rides on a tool you can't keep is worth less per dollar than the same revenue on a tool bolted to your floor, and the buyer has done this math more recently than you have.
The long program is the concentrated one
The tooling risk and the concentration risk are usually the same risk wearing two coats. The programs that feel most like stability, the decade-long runs for a marquee account, are exactly the ones where a single customer owns the tools, sets the terms, and could consolidate you out in one procurement decision. You didn't choose dependence. You said yes to your best customer for 11 years, and the yes compounded into a business that leans on tools you don't hold.
A buyer prices that lean. So does a lender. So, quietly, does the customer, who knows the tool is theirs and negotiates accordingly on price and terms because you both understand who can walk.
Fix the paper before you need it
Start with an inventory almost no molder keeps: every active tool, who owns it, where the ownership is documented, and what percent of revenue each ownership bucket carries. Most owners cannot produce that list in an afternoon, which is the first finding.
Then read the terms you actually have. The lawyers who work this area, Harris Sliwoski among them, stress that ownership is broader than the steel. It reaches the CAD and design files, the inserts and fixtures, and any backup tool built from your data. If those aren't named, ownership can be partial even after the customer paid in full, and the recovery rights and the notice periods are where your exposure really sits.
Where you can, own or co-invest in tooling, and price the program accordingly. Where the customer insists on owning, build switching cost around the relationship so the tool being portable doesn't make the program portable: qualification depth, multiple contacts, integration into how they run. A tool that's easy to move but painful to actually leave is a different asset than one that can walk clean.
The revenue was never the problem. The problem is holding it in a shape where someone else owns the thing it depends on. Count your tools this quarter. The number you don't want to find is the one a buyer finds for you.