How to choose a partner to take your hardware into production

To choose a product development firm, contract manufacturer or other manufacturing partner, match the type of partner to the work your product still needs, then check how they actually work, not just what they promise. First write down where you are (a working prototype? production-ready files?) and what's missing: redesign for production, electronics, firmware, buying parts, finding and managing factories, certification. Then compare partners on five things: work like yours they can show, who on their side will do it, what you get and pay at each step, who owns the files and tooling, and how they work with factories. A small first step with a clear deliverable is the cheapest way to test a partner before you commit to the whole project.

Many kinds of companies offer to take hardware "from prototype to production", and they mean different things. Some design, some build, and some do both through other companies. A partner that's excellent at one part can leave a gap at another, and the gaps are where projects stall.

What kinds of partners are there?

In short: design firms make the files, contract manufacturers build from finished files, ODMs build on their own designs, sourcing agents find factories, and a partner that manages the whole build redesigns the product for production and runs the factories.

Partner	What they do	Fits when	Watch for
Freelance engineer or designer	One piece of work, such as CAD, a board layout or firmware	You know exactly what's missing and can manage the rest	You coordinate everything else, and one person is a single point of failure
Product design and engineering firm	Industrial design, mechanical and electrical engineering, prototypes	The product still needs real design work	Strong design doesn't always mean a smooth handoff to a factory; ask what happens after the files
Electronics or embedded firm	Board design, firmware, preparing for certification	The electronics or firmware are the hard part	The case, molding and assembly sit with someone else
Contract manufacturer (CM, or EMS for electronics manufacturing services)	Builds your design from your files; many also buy all the parts (turnkey), run their own inspection and help with DFM for new products	Your files are production-ready, or close	Many won't take runs of a few hundred, or add setup charges; you still own design changes, the approved parts list and the acceptance criteria
ODM (original design manufacturer)	Builds on its own design or platform	Your product is close to one they already make	The design and files may stay theirs, minimums are often higher, and they may sell the same product to others
Sourcing agent	Finds factories and negotiates, sometimes inspects	You have production-ready files and need factories	Some agents are also paid by the factory; ask how they're paid
A partner that manages the whole build	Redesigns for production, places the work with several factories and runs the build	You want one company responsible from prototype to delivery	You pay for the coordination and are one step away from the factories; ask what you take with you if you leave

How they usually charge:

Freelancers and design or engineering firms: by the hour, or a fixed price per phase.
Contract manufacturers: a unit price, often with a markup on the parts they buy, plus setup charges.
ODMs: a unit price that often folds in their design work and tooling, at their minimum quantity.
Sourcing agents: a commission on the order, sometimes paid by the factory.
A partner that manages the whole build: a price for each engineering step, then a fee or a markup on production.

Some factories call themselves OEMs. Whatever the label, ask whether they build your design or theirs.

Before you compare: write down what you need done

Before you talk to anyone, write one page: what the product does, what state the prototype is in, what's done (industrial design, the board, the firmware, the case CAD), what's missing, how many you want to make in the first run and each year after, your target cost per unit, where you'll sell it and when you need it. The gaps tell you which kind of partner you need, or which two. The same page lets every partner you talk to quote the same thing.

To see what's missing, it helps to know the steps ahead: From working prototype to first production run walks through them. If you've just run a crowdfunding campaign, After your Kickstarter covers what to decide before you pick a factory.

1. Ask to see work like yours

Ask which products like yours they have taken into production, and what they handed over: production drawings, a DFM (design for manufacturing) report, a bill of materials (BOM), a test plan, a quote by quantity. Most partners can't share another client's files, but a good one can show a redacted sample or walk you through a project. Renders and prototypes show design skill; production files show whether a design got built. Ask for one or two past clients you can call.

If you're not technical, ask them to walk you through one past project: what they were given, what they delivered, what went wrong and what they did about it. A good partner is specific about the problems. For electronics and firmware, ask which chips and radios (Bluetooth, Wi-Fi, cellular) they've worked with, and which certifications their designs have passed.

2. Find out who does the work

Ask who will actually work on your project, what each person does, and who reviews the work before it reaches you. Ask what's done in house and what's subcontracted, and to whom. The people on the first call aren't always the people who do the work.

3. Get the steps, prices and deliverables in writing

Ask for the project split into steps, each with a price, a deliverable and a date. Ask whether each step is a fixed price or billed by the hour (time and materials), what's included, such as prototypes, test units, certification and tooling, and how changes are priced.

If the partner also handles manufacturing, ask how they're paid for that: a fee, a markup on parts and production, or both. Any of these can be fair, as long as you know which. Avoid paying for all the design work before any of it is delivered; paying step by step keeps you free to stop. Deposits are different: factories normally ask for part of the tooling cost when the mold is ordered, and a deposit on production orders.

4. Agree who owns what

Before work starts, get in writing that you own what you pay for:

the CAD files, and the native files from the CAD program (SolidWorks, Fusion and so on) if you'll edit the design yourself later: STEP keeps the shape but not the editable history;
the board design files: schematics, layout source files and Gerbers (the files a board factory builds from);
the firmware source code, the build setup, any signing keys and the image loaded on the line;
the BOM with manufacturer part numbers and approved alternates;
the test fixture designs, the test software and the test procedures;
the certification test reports, with certificates in your company's name;
any tooling, with a list and photos, marked as yours, and a written release so you can take it once it's paid for.

The contract should assign the work to you and give you a permanent license to anything the partner already owned and built into your product. Ask what you receive if you end the project halfway. If a factory or design firm keeps the tooling or the files, moving production later can mean paying for them again. If you need an NDA before you share files, ask for it before the first detailed call.

5. Ask how they work with factories

If they don't build the product themselves, ask which kinds of factories they work with, in which countries, and how they choose them. Ask who handles the first samples from tooling, the pilot run (a small trial build on the real line) and inspection, and who pays when parts come back wrong.

Agree in writing what counts as a pass before production: a golden sample to compare against, a cosmetic standard and the accept/reject limits for sample inspection (AQL), and who pays for failures found after units ship, not only those caught at inspection.

Ask whether they'll quote at your real quantities, with one-time costs listed separately from unit prices, the shipping terms named (ex-works, FOB or delivered duty paid), and freight, duties and tariffs to your door included. And ask what happens to the tooling and files if you later move production somewhere else.

Warning signs

No written scope or price for the next step.
Full payment for all the design work up front.
Vague answers about who owns the files, the firmware and the tooling.
Only renders and prototypes to show, and no way to see production drawings or DFM reports, even redacted or walked through.
A firm price or date before they've seen your files.
No questions about your quantity, target cost or markets.
No clear answer to where each part will be made and who is responsible for it.

Questions to ask on the first call

Which products like ours have you taken into production, and what did you hand over?
Who will work on our project, and who reviews the work?
What do you do in house, and what do you subcontract?
How is each step priced, and what do we get at the end of it?
If you handle manufacturing, how are you paid for it: a fee, a markup, or both?
Who owns the CAD, the board files, the firmware and the tooling, and what do we get if we stop halfway?
Where will the parts be made, and who handles the samples, the pilot run and inspection?
What do you need from us to quote at our quantities?

Example: a non-technical founder comparing three partners

This is an illustration, not a customer project.

A founder has a working prototype of a smart kitchen scale: a 3D-printed case, a board a friend designed, firmware that mostly works, and 800 pre-orders. The one-page summary shows the gaps:

the case needs a redesign for molding, with a food-safe plastic where food sits on the platform;
the board needs test points (pads a test fixture can touch) and a production review;
each unit needs its load cell calibrated with reference weights at a station on the line;
the product needs FCC testing;
the firmware needs a frozen version and a way to load it on the line;
no factory is lined up.

There's also a gap the founder hadn't seen: without a signed IP assignment, the friend still owns the board layout and the firmware they wrote. The founder gets the native schematic and layout files and a signed assignment before any partner builds on them.

A design firm shows strong products and can redesign the case and review the board, billed by the hour. It hands over production-ready files at the end and names factories it knows, but doesn't manage the build.
A contract manufacturer offers to review the board for test points and to build the calibration station, but at 800 units it adds a setup charge, and it needs a frozen BOM (a parts list that won't change) and a case ready for molding before it can quote firmly.
A partner that manages the whole build asks about the quantity, target cost and markets, and offers a priced first step with a DFM report and a first estimate by quantity. It charges for coordinating the factories, and the founder deals with the factories through it rather than directly.

Whichever path, the firmware needs an embedded engineer, often a freelancer, before the line can load it. The founder asks each partner the same eight questions. In this example, the choice comes down to which gaps the founder can cover. With a cofounder who has run DFM reviews and approved mold samples before, the design firm plus the contract manufacturer can cost less in cash. Without one, one company responsible for the whole build may be worth the coordination fee. Either way, the founder gets ownership of the files in writing before the first payment.

Where we come in

Anamor is the last kind of partner in the table: one that manages the whole build. We take US hardware teams with a working prototype into their first production run: we redesign the product for production, line up partner factories and suppliers in the US and overseas, price it at your quantities, and run the build through to shipping. If another kind of partner fits your project better, we'll tell you plainly.

Your firmware stays yours; we load it on the line. We don't test or certify products ourselves: if you need FCC, UL or CE testing, we arrange it with an accredited lab, and the cost is itemized in your quote. Quotes include shipping and duties to your US address. The first look is free, and anything after it is priced and agreed in writing before we start. An engineer reviews every package before it reaches you.

Send what you have: photos of the prototype, CAD if you have it, the parts list, and how many you plan to make. Need an NDA? We'll send our mutual NDA, or review yours, before you send files. Within two business days, a real person on our team will reply with a free first look at your production run and a few times to talk.

Frequently asked questions

How do I know what kind of hardware partner I need?

Write one page: what the product does, the state of the prototype, what's done, what's missing, how many you want to make in the first run and each year, your target cost per unit, where you'll sell it and when you need it. The gaps show which kind of partner you need, or which two, and the same page lets every partner quote the same thing.

What's the difference between a contract manufacturer and an ODM?

A contract manufacturer builds your design from your files, and many also buy the parts, run inspection and help with DFM. An ODM builds on its own design or platform, so it fits when your product is close to one it already makes; the design and files may stay theirs, minimums are often higher, and it may sell the same product to others.

What files should I own when I hire a product design firm?

Get in writing that you own what you pay for: the CAD, with native files if you'll edit the design later; the board files, including schematics, layout source and Gerbers; the firmware source code and build setup; the BOM; test fixture designs and test software; certification reports in your name; and any tooling. Ask what you receive if you stop halfway.

What are red flags when choosing a product development or manufacturing partner?

No written scope or price for the next step, full payment for the design work up front, vague answers about who owns the files and tooling, no way to see production drawings or DFM reports even redacted, a firm price or date before they've seen your files, no questions about your quantity, target cost or markets, and no clear answer to where each part will be made.