Sample supplier report · October 21, 2026

Humanoid robot actuators, North America

Who makes actuators for humanoid robots in North America?” Assumed: any volume · ISO 9001The buyer’s question, as they typed it. Assumed: Assumed: any volume · ISO 9001.

The answer

Send the RFQ to Resolved, Harmonic and Lin; 12 questions to settle first. Second-source Harmonic Drive LLC, whose ISO 9001 Massachusetts plant offsets Resolved Motion’s missing certificate. No ISO 9001 certificate was found for Resolved Motion or US Actuator. Harmonic Drive’s Beverly plant is ISO 9001 and AS9100 registered.

The shortlist

Rank	Supplier	Role	Where	Score
1	Resolved Motion	Lead	USA	20 / 20
2	Harmonic Drive LLC	Second source	Beverly, MA	18 / 20
3	US Actuator	On hold	Austin, TX	18 / 20
4	Lin Engineering	Fallback	USA	15 / 20
5	Keep Motion	Watch	—	3 / 20

Scorecard, criterion by criterion

Criterion	Resolved	Harmonic	US Actuator	Lin	Keep
Humanoid actuators ×2Your ask	8	6	8	6	2
North America plant ×2Your ask	8	8	8	6	0
In-house build	4	4	2	3	1
Total of 20	20	18	18	15	3

Points as weighted: the buyer’s asks count double where marked. A dash means nothing published backs a score, so it isn’t counted as zero.

The suppliers

Resolved Motion

Lead · USA

This is the closest fit: the supplier builds humanoid joint actuators at its own US plant. Makes rotary and linear actuators for humanoid robots and dexterous hands. Plant in Upstate New York.

Harmonic Drive LLC

Second source · Beverly, MA

An established US actuator and gear supplier that can back up the lead. Most products sold in the US are made in Massachusetts. Headquarters and plant on one site.

Lin Engineering

Fallback · USA

Offers humanoid joint motors and integrated joints from a California base. Based in Morgan Hill, California. Confirm whether US or offshore plants build humanoid joints.

Key findings

Resolved names the most customers (3); US Actuator next (1).
Changes to watch at four suppliers.

Settle these before you send the RFQ

Q1Confirm in writing: ISO 9001.
Q2Ask every bidder for its sites, by city.
Q3Ask every bidder which finishing steps it does in-house.
Q4ISO 9001 status, plant capacity, OEM production slots and customer references. (Resolved)
Q5Which servo actuators suit humanoid joints, and whether they are built in Beverly or Peabody. (Harmonic)
Q6Production readiness, quality certificates and a working sales contact. (US Actuator)
Q7Whether DriveCore joints are built in Morgan Hill or offshore. (Lin)
Q8Send the renewed AS9100D with ISO 9001:2015 (earlier…) certificate. (Lin)

How the research was done

23 found → 17 fit the brief → 17 researched → 5 ranked. Every score in the full report links to the page it came from, and the open questions are written out for the RFQ.

Sources

Read the full report

Get a report like this for your part

Describe what you need in one sentence. We search the market, rank the suppliers that fit, and email you the report.

Describe what you need