Full-service product development companies: what they do and how to choose

What "full-service" actually means, what these firms cost, how they differ from parts vendors and design studios, and how to pick one.

August 29, 20262 min read

Konstantin Dolgan

Written by Konstantin Dolgan, Ph.D., NPDP

Founder & CEO, Product Development Engineer

Published August 29, 2026

A full-service product development company takes a product from idea to production under one roof: industrial design, mechanical and electrical engineering, prototyping, testing, design for manufacturing, and supplier management. LANPDT is one: founded in 2015, based in Ruston, Louisiana, 120+ portfolio examples across consumer, medical, industrial, and agricultural products. The distinction that matters is scope of accountability, not headcount.

What "full-service" actually includes

  • Feasibility and concept design: what the product should be, and whether it can be built at the target cost.
  • Industrial design: form, ergonomics, materials, and how the product feels in the hand.
  • Mechanical engineering: CAD, tolerances, enclosures, mechanisms, and structural work.
  • Electronics and firmware: schematic, layout, sensors, power, and the software that runs on the board.
  • Prototyping and testing: working units that get used, broken, and revised.
  • Design for manufacturing: making the design producible at volume without redesigning it later.
  • Manufacturing support: supplier selection, tooling, first articles, and quality checks.

How full-service firms differ from the alternatives

Provider type
Owns the outcome
You must supply
Typical engagement
Full-service development firm
Yes, end to end
The idea and the market knowledge
$8,000 - $150,000+
Industrial design studio
Appearance and concept only
Engineering, DFM, manufacturing
$5,000 - $40,000
Freelance engineer
One discipline
Coordination between disciplines
$60 - $175 / hour
On-demand manufacturer
Part accuracy only
Production-ready CAD
Per-part quote
Contract manufacturer
Production only
A finished, released design
Per-unit at volume

Frequently asked questions

What full-service product development costs?

Those are engineering ranges. Tooling, certification, and first production runs are separate and usually quoted once the design is stable.

How to evaluate one?

Ask to see products they took all the way to production, not concept renderings. Ask who owns the CAD and the IP. The answer should be you, in writing.

Ask what happens when the first prototype fails, because it will. Ask for the manufacturing side of a past project: supplier, tooling, first-article results. Ask for a fixed-scope first step so you can judge the work before committing to the whole program.

Proof from our own work: the QMS2GO digital voice recorder covers design, electronics, and manufacturing in one program. Browse the full portfolio or compare engagement types on our solutions .

How long does full-service product development take?

A simple mechanical product reaches a testable prototype in 4 to 10 weeks and production in 6 to 12 months. A connected device with custom electronics and firmware typically needs 3 to 9 months of engineering before production readiness, plus certification time. The variable that moves the schedule most is not engineering speed; it is how quickly decisions get made and how many times the requirements change.

Do I need a patent before hiring a development firm?

No. Reputable firms sign an NDA before you describe the idea, and in most cases building first produces a stronger patent because the claims describe the real mechanism instead of your first guess at it. See whether to patent before prototyping for the full reasoning and the exceptions.

Is a full-service firm worth it for a single inventor?

It depends on where you are. If you need a working prototype to raise money, license the idea, or prove the concept, a fixed-scope first engagement is usually cheaper than assembling freelancers and managing them yourself. If your budget is under a few thousand dollars, start with a cost estimate and a review rather than a full program.

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