Buying or selling a contract manufacturing business comes down to programs a buyer can still run, tooling a successor is allowed to use, and a lead who can release the next order when you are not on the floor. What trades is transferable cash flow after a real production wage, invoices that match the bank, and equipment titled to the company. A plant that builds a customer's product on a standing program, a shop that only quotes one-off prototypes, and a catalog plant that sells its own brand are different companies. Price a forecast as if it were a firm order and you will use the wrong multiple.
The short answer: an owner-operated contract manufacturer, where you are still the estimator and often the person who talks to the customer's buyer, often trades around 2x–3.5x Seller's Discretionary Earnings (SDE) after a real plant wage. A plant with a lead already running programs, written agreements, and equipment titled to the company can move toward 2.5x–4.5x SDE. A managed plant a sponsor can add can be read on adjusted EBITDA. The building, if you own it, and the machines are usually separate from the multiple. Those ranges are directional. They are not a quote. How a platform buyer differs from an add-on is covered in the PE platform guide.
This guide is for contract manufacturing — making a customer's product, or a defined part of it, to the customer's specification, often on a repeat program. It sits on our manufacturing sale page, next to the custom product manufacturing guide when you design the part, and the assembly operations guide when you only kit or put pieces together. A light manufacturing plant that owns the brand is a different file. Do not blend a customer's program with a product you sell under your own name.
Companies that sell well have programs that match shipments, a second lead, a written list of who owns the tooling, and a quality system the customer already accepts. Companies that sell poorly are a founder who still holds every customer relationship, one program at half the year, and dies the customer can pull.
This article is not legal, tax, quality-system, or intellectual-property advice. Who owns a mold, a print, or a process, and what a supply agreement allows, change by the contract and by state. Confirm them with qualified counsel before you sign a letter of intent.
Start with the manufacturing sale page or a confidential business valuation.
Why Contract Manufacturing Is Different
Contract manufacturing sells capacity and a process on someone else's product. Several facts change the price:
- The forecast is not the backlog. A customer's volume plan is not a purchase order. Buyers will ask which releases are firm and which are a hope.
- Tooling is often not yours. A mold, a die, or a fixture the customer paid for does not transfer because the building does. Write the list before you multiply earnings.
- You may be the only person the buyer at the OEM will call. If every price change, every quality escape, and every schedule move waits for you, that is key-person risk. A transferable plant has a lead who has already shipped a release you did not touch.
- A quality system is part of the right to keep the program. A certification that names you, or a process the customer approved only with you in the room, is not automatic goodwill.
- A standing program and a spot prototype do not share a cycle. Split contracted production, overflow work, and anything you designed yourself.
Who Pays: OEMs, Brands, and the Occasional Spot Buyer
Brands and consumer programs
Brand programs are still business-to-business even when the end user is a shopper. You make a packaged good, a component, or a private-label run for a company that owns the label. The brand owns the demand. You own the process, if the contract says so. A plant in Florida and a plant in Texas, Ohio, Michigan, or Georgia can both be real revenue. Put the agreement and the quality standard in the file. Do not write the market as one region.
Industrial and OEM programs
Industrial programs are the core file. A part, a subassembly, or a finished unit on a blanket order or a scheduled release. One OEM at a third of the year is concentration. Ask, before you list, whether they will keep a new name and whether the agreement allows assignment. The answer belongs in the letter of intent. Work you also machine belongs next to the machine shop guide. Price the book you actually have.
Main Street versus a lower-middle-market plant
Main Street is one cell or a short line, you quoting and often on the floor, and a customer list in your phone. Price it on SDE. Lower middle market is a production lead and a quality lead who are not you, more than one program, and a backlog a buyer can read. That file can be read on adjusted EBITDA. Do not price a six-person overflow shop like a multi-program plant a sponsor would add.
What Buyers Underwrite
Releases, yield, and the mix
Releases, yield, and the mix are the proof. Buyers want twelve to twenty-four months of shipments by customer and by program, with price, hours or machine time, scrap, and what left the dock, tied to the bank. A launch quarter you annualized is not the run rate. Rework, chargebacks, and resin or metal you bought ahead of a forecast that never became a release come out before anyone talks about a multiple.
Who owns the tooling, the prints, and the process
Who owns the tooling, the prints, and the process is the book. Customer-owned molds, consigned material, and a process the customer approved do not transfer because you own the building. A fixture you built to a print you do not own is capacity, not a product line. A buyer who discovers the tools can leave will cut the price in diligence, not in the teaser.
Labor, the lead, and the quality file
Labor, the lead, and the quality file are the right to run the next release. A supervisor wage, a quality lead who is not you, and inspection records the customer already accepts. If overtime or a single setup person is how the plant makes the promise, say so. Buyers price the people, the approval, and the machines separately. SBA 504 can finance a plant and long-lived equipment. It does not finance the goodwill of a supply agreement that names you.
Agreements, minimums, and termination
Agreements, minimums, and termination are the surprise. A contract that the customer can end on thirty days, a minimum that was never enforced, and a price that resets every quarter. Capacity you reserved for a customer who can walk is not a five-year annuity. Put the termination language next to the revenue line before you go to market.
How Sellers and Buyers Should Read the Multiple
Use SDE when the owner is still quoting or still on the floor. Add back only costs a buyer will not keep, and only after a market wage for the estimator and the plant lead. The valuation guide is the method. Customer-owned tooling is not inside the multiple. A forecast is not the monthly average. A managed plant with more than one program can be read on adjusted EBITDA once a supervisor wage is already in the numbers.
Getting the File Ready
Twelve to thirty-six months is the useful window. The sale-prep roadmap is the sequence. For a contract manufacturer, the work is specific: a lead on releases you do not touch, a tooling-ownership list, machines titled to the company, and a quality file the customer will recognize without you in the room. Keep the process quiet. An OEM in the middle of a launch will worry if they hear about a sale from a post. The confidential sale guide is the rule.
Who Buys a Contract Manufacturer
A plant lead who wants the book, a manufacturer entering a process, an OEM that wants the capacity in house, and a sponsor adding a plant are the usual buyers. They do not underwrite the same file. The individual needs SBA, a customer path, and sometimes seller financing. The 7(a) cap is $5 million. The strategic buyer will ask whether the programs and the quality lead stay. A sale fails when the only person who can talk to the customer's buyer is you. A platform buyer will also read the add-on note before they price a single-customer plant. Overflow work you only assemble should be read with the assembly guide, not buried in the program margin.
Diligence, Financing, and the First Ninety Days
Diligence is agreements, releases, tax returns, the tooling list, quality escapes, titles, and insurance. The diligence guide is the calendar. Expect a lender to recast related-party rent, a wage you never paid, and a launch quarter. Working with an SBA lender means the shipments match the bank and the machine list matches what is bolted to the floor.
A holdback shows up when the customer relationship is you or one program is the year. Tie it to a date and to releases that actually ship. The earn-out note is the structure. A plant that cannot start Monday without you is a job with machines, not a contract manufacturer.
What Moves the First Offer
Open quality escapes, tooling the customer can remove, and a forecast treated as backlog belong in the letter so the price is for programs a buyer can still run. Name the plant lead, the wage, and the programs they already release. A buyer who has not met that person will price a hire. Put the largest program next to that name. Two years by month keep a launch from becoming the run rate. Include termination clauses, prints you do not own, and certifications that name only you.
A buyer who has walked the floor once will still ask who releases the next order, which tools are customer-owned, and which machines leave with the sale. Answer with a name, a release schedule, and an ownership list. Standing programs, overflow, and anything you sell under your own name should be three lines, not one blended margin. A mold for a program that ended is not equipment at replacement cost. A plant in Florida and a plant in Ohio, Texas, or Michigan can both be real work. The file is the release, not the state on the door.
Material you bought against a forecast that never became a purchase order, a price concession you gave and never wrote down, and a quality escape still open belong on the list before anyone multiplies last quarter. If the building lease ends with you, the buyer is pricing a move as well as a book. Name the person who already ships without a call from you, and put next month's releases beside that name. The first offer moves when the shipment report ties to the bank and the plant lead is the one walking the line.
Talk With Bridge Point
If you are preparing to sell a contract manufacturer — or you are a buyer who can staff the plant and hold the customer path — Bridge Point Business Brokers can help you value the programs and the machines separately, and keep the process confidential. Start with a valuation or contact us at (352) 515-0226.
Frequently Asked Questions
How is a contract manufacturer valued in 2026?
An owner-operated plant often trades around 2x–3.5x Seller's Discretionary Earnings after a real plant wage. A plant with a lead, written programs, and equipment titled to the company can move toward 2.5x–4.5x SDE. A managed plant can be read on adjusted EBITDA. These ranges are directional only — not a quote. Customer-owned tooling and the building are usually separate from the multiple.
Is a customer's volume forecast the same as backlog?
No. A forecast is a plan. A firm release or a purchase order is an order. Buyers will split the two. Material you bought against a forecast that never became an order is not automatically inventory at full cost.
Who owns the tooling in a contract manufacturing sale?
Whoever the agreement says. Customer-paid molds, dies, and fixtures often stay with the customer and are not inside the multiple. List every tool, who paid for it, and whether the buyer may keep using it after closing.
How is contract manufacturing different from custom manufacturing or assembly?
Contract manufacturing runs a customer's product on a repeat program, usually to the customer's design. Custom manufacturing often designs or builds a shorter-run part. Assembly kits or puts pieces together and may not own the process. If you do more than one, split the revenue.
Will SBA finance a contract manufacturer?
SBA 7(a) often can when a lead can run the programs and the customer path is real. The 7(a) cap is $5 million. SBA 504 can finance a plant and long-lived equipment. It does not finance the goodwill of a supply agreement that names only the owner.
What quietly reprices a contract manufacturer?
An owner who still holds every customer call, one program treated as permanent, a forecast counted as backlog, customer-owned tooling counted as equipment, a quality escape still open, and a contract the customer can end on short notice.
How can an owner increase value before a sale?
Put a lead on releases you do not touch, write who owns the tooling, separate firm orders from forecasts, keep the quality file in a form the customer already accepts, and obtain a professional valuation 12–36 months before you go to market.
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