OEM vs Integrator: The Split Most Buyers Miss
An OEM is the company that designs and builds the robot arm and its controller. An integrator is the engineering firm that specifies the cell, buys the arm from the OEM, and delivers a working line to the plant. The Association for Advancing Automation (A3), formerly the Robotic Industries Association (RIA), maintains the certified integrator program that most industrial buyers filter on.
The reason the split matters is warranty and accountability. If you buy an arm directly from an OEM like FANUC or ABB and then hire a machine shop to bolt it up, no one owns the process outcome. If you buy through an A3-certified integrator, the integrator owns the cycle-time and quality guarantee and the OEM warranty flows through them.
Prices below are labeled: "list" or "MSRP" means the OEM or vendor publishes the number; "quote-only" means the figure is a common industry range from published integrator case studies and no OEM price sheet exists. Cell-level totals from integrators are always quote-only and vary widely by application.
| Role | What they sell | Who they answer to | Typical contract |
|---|---|---|---|
| OEM | The arm, controller, teach pendant, and standard software | The end user for hardware warranty | Hardware PO, sometimes with a training package |
| System integrator | The working cell: arm, tooling, fixtures, guarding, PLC, HMI, install | The end user for cycle time and uptime | Turnkey engineering contract with acceptance criteria |
| Distributor / reseller | Standard configurations of an OEM's arm | The OEM for terms, the buyer for delivery | Purchase order against a catalog |
| OEM-owned integrator | Turnkey cells built only on that OEM's arms | Both the OEM and the end user | Turnkey contract, single-brand hardware |
The Ten Industrial Robot OEMs That Matter
Global industrial robot shipments are concentrated in a small group of manufacturers. The International Federation of Robotics reports that annual installations continue to be dominated by a handful of Japanese, European, and Chinese OEMs. The list below is ordered by the combination of installed base, published product breadth, and North American service coverage a buyer will actually encounter.
Every OEM here publishes a product page with the arm families they sell. Where a company publishes a starter-cell or list price, it is cited; where it does not, the entry says "quote-only" and gives the class of buyer the vendor primarily serves.
- FANUC (Japan) — the largest installed base of industrial robots worldwide per FANUC annual reports. Full range from the LR Mate tabletop arm to the M-2000iA heavy-payload series. Quote-only pricing through FANUC America and authorized integrators.
- ABB (Sweden/Switzerland) — publishes a broad product line from the GoFa cobot to the IRB 8700 heavy-payload arm. Owns the RobotStudio simulation environment. Quote-only.
- Yaskawa Motoman (Japan) — the Motoman GP and HC series are workhorses in welding and material handling. Yaskawa Motoman publishes full spec sheets; pricing is through the integrator channel.
- KUKA (Germany) — the orange arms common in automotive body shops. The KUKA industrial robots catalog spans the KR AGILUS to the KR 1000 titan.
- Kawasaki Robotics (Japan) — one of the oldest industrial arm builders. Kawasaki Robotics is strong in spot welding, painting, and semiconductor handling.
- Mitsubishi Electric (Japan) — the MELFA series, tightly integrated with Mitsubishi PLCs. Strong in small-parts assembly and electronics.
- Denso Robotics (Japan) — small, fast SCARA and six-axis arms popular in electronics assembly. Denso publishes an approximate list of $20,000 to $60,000 for its VS-series six-axis models through distribution.
- Epson Robots (Japan) — SCARA and compact six-axis. Epson Robots is a routine choice for benchtop electronics work.
- Staubli (Switzerland) — precision arms used in pharma, food, and machine tending where cleanroom compatibility matters. Quote-only.
- Universal Robots (Denmark, Teradyne) — the cobot leader. Universal Robots arms are typically quoted from around $25,000 for the UR3e up to roughly $60,000 for the UR20, before end effector, mount, and integration.
- Techman Robot (Taiwan, Quanta) — cobot arms with built-in vision. Common as a lower-cost alternative to UR in Asia and increasingly in North America.
- DOOSAN Robotics (South Korea) — the H-series cobots offer some of the highest payloads in the collaborative class. Publicly traded on the KRX since 2023.
- Comau (Italy, Stellantis) — heavy automotive body-in-white arms; the NJ series is common on European lines.
- Nachi Robotic Systems (Japan) — spot welding and handling arms with a large North American service base out of Novi, Michigan.
- Estun (China) — the largest Chinese-origin industrial robot OEM by domestic shipments, per IFR country reporting.
- Siasun (China) — broad range including AGV and cleanroom robots; strong in Chinese electronics fabs.
The Top System Integrators in North America
An integrator turns an OEM arm into an accepted cell on your floor. The list below is limited to integrators with published case studies, public revenue disclosure or ownership, and A3 certification or equivalent standing. Cell prices are always quote-only; typical ranges cited below come from published case studies and integrator interviews and vary by tooling, guarding, and process complexity.
The A3 certified robot integrator directory at automate.org is the primary vetting list. Filter by industry, then by geography, then by whether the integrator has done your specific process at least three times.
- JR Automation (Holland, Michigan) — acquired by Hitachi in 2019 for a reported $1.425 billion, per Hitachi. Broad industry coverage in automotive, life sciences, e-commerce fulfillment, and consumer goods.
- Genesis Systems (Davenport, Iowa) — an IPG Photonics company since 2018. One of the largest robotic welding integrators in North America.
- Motion Controls Robotics (Fremont, Ohio) — A3-certified FANUC integrator focused on palletizing, machine tending, and material removal.
- ATC Automation (Cookeville, Tennessee) — an Illinois Tool Works company; heavy in automotive powertrain and battery module assembly.
- Bastian Solutions (Indianapolis, Indiana) — a Toyota Advanced Logistics company; the intralogistics and warehouse-automation integrator most often shortlisted alongside Dematic and Honeywell Intelligrated.
- Wauseon Machine (Wauseon, Ohio) — A3-certified integrator with strong tube-bending and press-tending capability.
- Concept Systems (Albany, Oregon) — timber, food, and industrial process integrator with a long track record on Kawasaki and FANUC arms.
- Acieta (Waukesha, Wisconsin) — FANUC-focused with pre-engineered FastArc welding and FastLOAD machine-tending cells that shorten quote time.
- RND Automation (Sarasota, Florida) — packaging and life-sciences integrator; strong on Epson and Denso SCARA arms.
- ESS Technologies (Blacksburg, Virginia) — packaging and case-packing cells; frequent FANUC and Yaskawa integrator.
How to Actually Choose Between Them
Buyers routinely spend weeks comparing OEM arms and then hand the project to the nearest integrator without the same rigor. Reverse the order. Pick the integrator against a specific process reference, then let them recommend the arm they have deployed most on that process.
Ask any integrator for three references on the exact process — not the exact industry. A "food packaging" reference is not a "hot-fill bottle case-packing at 120 cases per minute" reference. Call the reference and ask what broke in year two, not year one.
For OEM-brand exposure, the safer path for a first project is to pick an OEM that has a service office within four hours of your plant. Spare parts and applications-engineer response time matter more than arm brand in the first eighteen months.
- Filter integrators by A3 certification and by three references on your exact process.
- Confirm OEM service response time and parts stocking within four hours of your site.
- Require the integrator to name the OEM engineer who will support the cell after acceptance.
- Insist that acceptance criteria include the worst part you actually produce, not a sample.
- Ask for the integrator's change-order rate on the last five projects of similar scope.
Bottom Line
The industrial robot company you remember is usually the OEM. The one that determines whether the project succeeds is usually the integrator. Shortlist both, and evaluate the integrator against your exact process before the arm brand becomes the tiebreaker.
Pull the A3 certified integrator directory, filter by your exact process, and request three references you can call this week.
FAQs
Which industrial robot company has the largest installed base?
FANUC reports the largest installed base of industrial robots worldwide in its annual filings, with ABB, Yaskawa, and KUKA together making up most of the rest of the top tier.
Do I buy the robot from the OEM or from an integrator?
For a working production cell, buy from an A3-certified system integrator. They purchase the arm from the OEM, own the cycle-time and uptime commitment, and pass the OEM warranty through to you.
How much does an industrial robot cost from these companies?
Bare arms typically range from about $25,000 for a compact cobot to well over $100,000 for a heavy-payload six-axis. Fully integrated cells, including tooling, guarding, and controls, are quote-only and commonly run two to four times the arm price.
What is an A3 certified integrator?
A3 certification, run by the Association for Advancing Automation (formerly the RIA), verifies that an integrator has documented safety, project management, and engineering practices and a track record of delivered robotic cells.
Are Chinese industrial robot OEMs a serious option for a US plant?
Estun and Siasun have grown quickly in their home market, per IFR data, but service coverage, spare-parts stocking, and integrator familiarity are usually thinner outside China. For a first US project, most buyers still shortlist the Japanese and European OEMs.