Which CNC machining and contract manufacturing companies do ChatGPT, Gemini and Google AI recommend? (October 2026)
When US buyers ask AI engines where to get CNC parts made, three online manufacturing platforms come back most. Xometry was named most often, in 32 of 54 answers (59.3%), followed by Protolabs (31) and Fictiv (27). All 54 answers named at least one firm, and 175 different firms were named in total, 135 of them only once.
By Frederik Jakobsen, founder of Danish Lead Co and SourceRank AI. Measured 10 October 2026, published October 2026.
The firms AI named most often
Share of all 54 answers that named the firm as a provider, and how many answers on each engine named it. An answer counts once per firm however often it repeats the name.
100.0%
Answers that named at least one provider firm: 54 of 54. Every answer named firms.
175 firms
Distinct firms named across all 54 answers. 135 of them were named in only one answer.
26.0%
Share of all 346 firm mentions taken by the three most named firms, Xometry, Protolabs and Fictiv.
| # | Firm | Answers naming it | Engines | ChatGPT of 12 | Gemini of 12 | Copilot of 7 | AI Mode of 12 | AI Overviews of 11 |
|---|---|---|---|---|---|---|---|---|
| 1 | Xometry | 32 of 54 59.3% | 5 of 5 | 6 | 10 | 2 | 8 | 6 |
| 2 | Protolabs | 31 of 54 57.4% | 5 of 5 | 7 | 8 | 3 | 8 | 5 |
| 3 | Fictiv | 27 of 54 50.0% | 4 of 5 | 4 | 8 | 0 | 9 | 6 |
| 4 | Owens Industries | 11 of 54 20.4% | 5 of 5 | 2 | 4 | 1 | 2 | 2 |
| 5 | eMachineShop | 7 of 54 13.0% | 3 of 5 | 2 | 3 | 0 | 0 | 2 |
| 6 | RapidDirect | 6 of 54 11.1% | 4 of 5 | 2 | 1 | 1 | 0 | 2 |
| 7 | United CNC Machining | 5 of 54 9.3% | 3 of 5 | 0 | 0 | 1 | 3 | 1 |
| 8 | Fabcon | 5 of 54 9.3% | 3 of 5 | 0 | 1 | 3 | 0 | 1 |
| 9 | Hubs (Protolabs Network) | 5 of 54 9.3% | 4 of 5 | 1 | 2 | 0 | 1 | 1 |
| 10 | Fathom Digital Manufacturing | 4 of 54 7.4% | 3 of 5 | 1 | 2 | 0 | 0 | 1 |
| 11 | Integer Holdings | 4 of 54 7.4% | 4 of 5 | 1 | 0 | 1 | 1 | 1 |
| 12 | Jabil | 4 of 54 7.4% | 4 of 5 | 1 | 0 | 1 | 1 | 1 |
| 13 | Flex | 4 of 54 7.4% | 4 of 5 | 1 | 1 | 1 | 1 | 0 |
| 14 | Cox Manufacturing | 3 of 54 5.6% | 3 of 5 | 1 | 0 | 0 | 1 | 1 |
| 15 | MacroFab | 3 of 54 5.6% | 3 of 5 | 1 | 1 | 0 | 1 | 0 |
Top 15 of 175 firms. Engine columns show answers naming the firm out of that engine's measured answers. Firms with the same count are listed in the order the data was read.
What the answers show
- +Xometry (32), Protolabs (31) and Fictiv (27) were named far more than any machine shop. The most named shop that is not an online platform was Owens Industries, in 11 of 54 answers, 20.4%.
- +This category has the longest tail of the ten measured on 10 October: 175 different firms, 135 of them named only once. Outside the top three, which shop a buyer hears about depends heavily on the exact question.
- +The engines split on the leader. ChatGPT named Protolabs most (7 of 12 answers), Gemini named Xometry most (10 of 12), and Google AI Mode named Fictiv most (9 of 12).
- +YouTube and Reddit were the two most cited domains, in 9 and 6 of 34 answers with sources. Directories were cited in only 3.
What each engine named
The most named firm per engine. Each engine favoured a different platform.
| Engine | Answers | Named a provider | Distinct firms | Most named firm on that engine |
|---|---|---|---|---|
| ChatGPT | 12 | 12 of 12 100.0% | 74 | Protolabs (7 of 12) |
| Gemini | 12 | 12 of 12 100.0% | 59 | Xometry (10 of 12) |
| Microsoft Copilot | 7 | 7 of 7 100.0% | 38 | Protolabs, Fabcon (3 of 7) |
| Google AI Mode | 12 | 12 of 12 100.0% | 26 | Fictiv (9 of 12) |
| Google AI Overviews | 11 | 11 of 11 100.0% | 49 | Xometry, Fictiv (6 of 11) |
First-pick agreement: in 9 of the 12 questions where at least two engines named a firm, two or more engines named the same firm first. Xometry was named by 5 of 5 engines. Google showed no AI Overview for 1 of the 12 questions; those are not counted as answers.
The sources behind the recommendations
Most cited domains in the 34 answers that showed a source list. Video and forum content ranks above any directory here.
| # | Cited domain | Kind | Answers citing it |
|---|---|---|---|
| 1 | youtube.com | Social and video | 9 of 34 26.5% |
| 2 | reddit.com | Community forum | 6 of 34 17.6% |
| 3 | leweiprecision.com | Other (blogs, listicles, publishers, other vendors) | 5 of 34 14.7% |
| 4 | fabcon.com | A named firm's own website | 5 of 34 14.7% |
| 5 | criterionprecision.com | A named firm's own website | 5 of 34 14.7% |
| 6 | hubs.com | Other (blogs, listicles, publishers, other vendors) | 5 of 34 14.7% |
| 7 | protolabs.com | A named firm's own website | 5 of 34 14.7% |
| 8 | fictiv.com | A named firm's own website | 5 of 34 14.7% |
| 9 | marcusmanufacturing.com | Other (blogs, listicles, publishers, other vendors) | 3 of 34 8.8% |
| 10 | xtjcnc.com | Other (blogs, listicles, publishers, other vendors) | 3 of 34 8.8% |
| 11 | yicenprecision.com | Other (blogs, listicles, publishers, other vendors) | 3 of 34 8.8% |
| 12 | owensind.com | A named firm's own website | 3 of 34 8.8% |
Out of the 34 answers that carried a source list (124 distinct domains). Sources per engine: ChatGPT 0 of 12, Gemini 8 of 12, Copilot 7 of 7, AI Mode 9 of 12, AI Overviews 10 of 11.
| Source kind | Answers citing at least one |
|---|---|
| A named firm's own website | 29 of 34 85.3% |
| Other (blogs, listicles, publishers, other vendors) | 28 of 34 82.4% |
| Social and video | 9 of 34 26.5% |
| Community forum | 6 of 34 17.6% |
| Directory, review or analyst site | 3 of 34 8.8% |
An answer can cite several kinds, so the rows do not sum to the total. "A named firm's own website" means the domain matches the name of a firm named in this category.
What the named firms have in common
The three most named firms are online manufacturing platforms with instant quoting, which is how the answers themselves describe them, and six of the ten most named firms had their own website cited by at least one engine.
How a firm in this category gets named
Being named depends on what the engines read. In this category, of the 34 answers that showed their sources, 29 cited a named firm's own website and 3 cited a directory, review or analyst site. For a machine shop, the questions that produce names are specific: tolerances, materials, certifications, batch sizes and lead times. A shop that states those plainly on its own pages, and appears in the video and forum discussions the engines cite, has a route into answers that are otherwise filled by the platforms. This is the work SourceRank AI does, described on the services page. The free site readiness check shows whether your site is structurally ready to be cited; it checks your site, it does not measure answers like the ones on this page. To see where your own firm stands in these answers, book a call.
Exactly what was measured
| Parameter | Value |
|---|---|
| Date | 10 October 2026, one run |
| Buyer questions | 12, each phrased as a buyer asking for a provider, varied by size, budget, situation and switching. Full list below |
| Answer engines | 5: ChatGPT, Gemini, Microsoft Copilot, Google AI Mode, Google AI Overviews |
| Engine cells | 60. One question on one engine |
| Answers measured | 54 of 60. The denominator for every share on this page. 1 Google search showed no AI Overview. 5 Copilot answers were written for a buyer outside the US, a side effect of the third-party service we query Copilot through, and are excluded |
| Market | United States, English. Google AI Mode and AI Overviews were queried with a US location. ChatGPT, Gemini and Copilot were not given a location, the same as in our client measurement runs; Copilot answers that assumed a buyer abroad are excluded |
| Sources | Cited sources come from Gemini, Copilot, Google AI Mode and Google AI Overviews. ChatGPT's answers in this run came back without a machine-readable source list, so ChatGPT is not in the source tables |
| Firm extraction | One language model call per answer listed the firms the answer named as providers, excluding directories, publications, citation labels and tools. Names were normalised and aliases merged. A hand check of 20 answers across the study is reported on the hub page |
| Not measured | Location personalisation for the chat engines, logged-in or personalised sessions, run-to-run variation (this is a single run, and the same question asked again can return different firms), and model versions, which change without notice |
All 12 buyer questions
- Best CNC machining companies in the US for custom parts
- Which contract manufacturer should a hardware startup use for low-volume production?
- Top precision CNC machine shops for aerospace parts in the United States
- Where can I get CNC machined prototypes fast in the US?
- Best online CNC machining services for quick quotes
- Which contract manufacturing companies are best for medical device components?
- Recommend a US CNC machining supplier for production runs of 1,000 to 10,000 parts
- We need to switch our machining supplier because of quality problems. Which CNC shops are most reliable?
- Best US-based alternatives to sourcing CNC parts from China
- Top contract manufacturers for metal parts and assemblies in the Midwest
- Which CNC machining service is cheapest for small batches of aluminum parts?
- Best ISO 9001 certified CNC machining companies for industrial equipment parts
Cite this research
Journalists, analysts and writers are welcome to quote, chart and republish the figures on this page. Please credit SourceRank AI and link to this page as the source. For the underlying data, a comment from Frederik Jakobsen or a category we have not covered, see the press page.
Suggested citation
SourceRank AI (2026). Which CNC machining and contract manufacturing companies do ChatGPT, Gemini and Google AI recommend? Measured 10 October 2026. https://sourcerankai.com/research/who-ai-recommends/cnc-machining-contract-manufacturers/
Link to copy
<a href="https://sourcerankai.com/research/who-ai-recommends/cnc-machining-contract-manufacturers/">Which CNC machining and contract manufacturing companies do ChatGPT, Gemini and Google AI recommend? (SourceRank AI, October 2026)</a>Where to go next
All 22 category studies
Who AI recommends across 22 B2B categories, with the cross-category findings and the full method.
What AI engines cite by industry
The source mix behind AI answers in ten industries, from our September 2026 measurement runs.
AEO for this industry
What we do for firms in this space, and the questions their buyers ask AI.
Common questions
Which CNC machining and contract manufacturing companies does ChatGPT recommend?
In this October 2026 run ChatGPT named Protolabs most often, in 7 of its 12 answers. Across all five engines the most named were Xometry (32 of 54 answers), Protolabs (31) and Fictiv (27).
Do ChatGPT, Gemini and Google AI recommend the same CNC machining and contract manufacturing companies?
Partly. Xometry was named by 5 of the 5 engines, and in 9 of the 12 questions at least two engines named the same firm first. Below the top few names the lists diverge: 135 of the 175 firms were named in only one answer.
How was this measured?
12 buyer questions asking for CNC machining and contract manufacturing companies were put once to ChatGPT, Gemini, Microsoft Copilot, Google AI Mode and Google AI Overviews on 10 October 2026, from a US English context. 54 answers were measured, and the firms each answer named as providers were extracted and counted once per answer. It is a single run, and the same question asked again can return different firms.