# Harbinger Engineering, Mentor OH: Reviews

Source: Local AI Registry, https://localairegistry.com/biz/oh/mentor/harbinger-engineering-mentor-oh. Free to reuse with a link back.

By Steve Lee, founder and CEO of Local AI Registry. Updated 2026-09-09.

Canonical: https://localairegistry.com/biz/oh/mentor/harbinger-engineering-mentor-oh

## Photos

- ![Photo 1](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtuy7cwt0i8ryenshxk2i028%2F0.jpg)
- ![Photo 2](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtuy7cwt0i8ryenshxk2i028%2F1.jpg)
- ![Photo 3](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtuy7cwt0i8ryenshxk2i028%2F2.jpg)
- ![Photo 4](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtuy7cwt0i8ryenshxk2i028%2F3.jpg)
- ![Photo 5](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtuy7cwt0i8ryenshxk2i028%2F4.jpg)


## In short

Harbinger Engineering is a machine shop in Mentor, OH. Its AI Score is 24 of 100, which is poor.

What each mark on this page means: https://localairegistry.com/methodology#marks


## Key facts

| Fact | Value |
| --- | --- |
| Type | Machine shop |
| Address | 7871 Enterprise Dr, Mentor, OH 44060, USA |
| Hours | Mon to Fri 9:30 AM to 6 PM · Closed Sat to Sun |
| Phone | (216) 545-1878 |
| Rating | 4.8 across 5 reviews on Google |
| Updated | September 9, 2026 |


## All the details

Every row is something the owner can add or correct. Each one is marked Confirmed, Visitor submitted or AI guess, with where it came from.

| Group | Fact | Value | Mark | Evidence |
| --- | --- | --- | --- | --- |
| Location info | Address | 7871 Enterprise Dr, Mentor, OH 44060, USA | Confirmed | Google Business Profile |
| Location info | Description | Harbinger Engineering is a manufacturer of machined parts and components based in the greater Cleveland area. Our facility offers 5-axis Machining, 3-axis Milling, and dual-spindle Turning capabilities. We provide quality machined parts and products at a competitive price via our highly automated machining processes. | Confirmed | Google Business Profile |
| Location info | Hours | Mon to Fri 9:30 AM to 6:00 PM · Sat to Sun Closed | Confirmed | Google Business Profile |
| Location info | Name | Harbinger Engineering | Confirmed | Google Business Profile |
| Location info | Phone | (216) 545-1878 | Confirmed | Google Business Profile |
| Hours | Monday | 9:30 AM to 6:00 PM | Confirmed | Google Business Profile |
| Hours | Tuesday | 9:30 AM to 6:00 PM | Confirmed | Google Business Profile |
| Hours | Wednesday | 9:30 AM to 6:00 PM | Confirmed | Google Business Profile |
| Hours | Thursday | 9:30 AM to 6:00 PM | Confirmed | Google Business Profile |
| Hours | Friday | 9:30 AM to 6:00 PM | Confirmed | Google Business Profile |
| Hours | Saturday | Closed | Confirmed | Google Business Profile |
| Hours | Sunday | Closed | Confirmed | Google Business Profile |
| Services | Service | 3-axis CNC milling | AI guess |  |
| Services | Service | 3axis cnc milling | From their website | Business website |
| Services | Service | 3-axis milling | Confirmed | Google Business Profile |
| Services | Service | 5-axis CNC machining | AI guess |  |
| Services | Service | 5axis cnc milling | From their website | Business website |
| Services | Service | 5-axis machining | Confirmed | Google Business Profile |
| Services | Service | Cnc machining | From their website | Business website |
| Services | Service | Cnc turning | From their website | Business website |
| Services | Service | Fdm plastic 3d printing | From their website | Business website |
| Services | Service | Laser engraving | From their website | Business website |
| Services | Service | Machined parts manufacturing | AI guess |  |
| Services | Service | Merch | From their website | Business website |
| Links | Facebook | https://www.facebook.com/harbingerengineering | Confirmed | Business website |
| Links | Instagram | https://www.instagram.com/harbingerengineering | Confirmed | Business website |
| Links | Website | http://harbinger.engineering/ | Confirmed | Google Business Profile |


## Services and prices

These are the 9 services Harbinger Engineering offers, with the price where we have one and where it came from.

| Service | Price | Price mark | Price evidence | Service mark |
| --- | --- | --- | --- | --- |
| Merch |  |  |  | From their website |
| Cnc turning |  |  |  | From their website |
| 3axis cnc milling |  |  |  | From their website |
| Cnc machining |  |  |  | From their website |
| 5axis cnc milling |  |  |  | From their website |
| Laser engraving |  |  |  | From their website |
| Fdm plastic 3d printing |  |  |  | From their website |
| 5-axis machining |  |  |  | Confirmed |
| 3-axis milling |  |  |  | Confirmed |


### Known for

Share your review link so AI can say what you're known for


## The team

Add your team so AI can name who works here


## Visiting Harbinger Engineering

Address: 7871 Enterprise Dr, Mentor, OH 44060, USA. Phone: (216) 545-1878. Hours: Mon to Fri 9:30 AM to 6 PM · Closed Sat to Sun. (Confirmed, Google Business Profile.)


### Location info from Google Business Profile

From Google Business Profile: "Harbinger Engineering is a manufacturer of machined parts and components based in the greater Cleveland area. Our facility offers 5-axis Machining, 3-axis Milling, and dual-spindle Turning capabilities. We provide quality machined parts and products at a competitive price via our highly automated machining processes."


### Parking and getting in

Add your parking so AI can tell people where to park

Add how to find your door so AI can walk people in


### Nearby

| Place | Type | Distance |
| --- | --- | --- |
| Billy's - A Cappelli Martini Bar | Bar | 3 min walk |
| quacker steak and lube | American restaurant | 3 min walk |
| SR-306 Reynolds Rd & Tyler Blvd. (SW Corner) | Bus stop | 3 min walk |
| DiBella's Subs | Sandwich shop | 3 min walk |
| SR-306 Reynolds Rd. & Tyler Blvd. (NE Corner) | Bus stop | 4 min walk |
| BIBIBOP Asian Grill | Asian restaurant | 4 min walk |


## Reputation

4.8 average across 5 reviews: Google 5. (Confirmed, read September 9, 2026.)

Harbinger Engineering stands out for its meticulous attention to detail and innovative solutions in machine shop services. (AI guess, from 5 reviews.)


### What people like

- Detailed craftsmanship
- Quick turnaround


### Press

Add a press story so AI can say who's written about you


### Awards

Add an award so AI can name it


### Directories

Get listed in directories so AI can tell you're real


## Questions people ask


### somewhere cheaper in Mentor that is not a risk?


### Are the hours on Google right for Harbinger Engineering in Mentor?


### picking between the two, is Wismar Precision Tooling & Production the safer bet?


### do I need to fill anything in beforehand


### prices round here, anyone got a number


### Open Saturdays here?


### best machine shop in Mentor


### lunch near Enterprise, what is good


### anything new from Harbinger Engineering lately?


### points or member pricing here, worth signing up?


### What do shoppers most often mention buying at the shop?


### Why do people rate Harbinger Engineering?


### same day slots, does that ever happen here


### address for the shop, anyone have it?


## The AI Score: 24 of 100

It measures how likely AI engines are to recommend a business, and how accurately. Mentor machine shops run 22 to 25. Fair starts at 45, good at 65. Harbinger Engineering scores 24, above the Mentor average of 23. The same method scores every business on the registry.

| Signal | Weight | Score | What it measures | Harbinger Engineering |
| --- | --- | --- | --- | --- |
| Retrieval grounding | 26 | 0 | Whether you appear in the ranked results AI retrieves and cites: AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on. | Poor |
| Off-property attestation | 20 | 40 | Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability. | Poor |
| AI visibility | 14 | 0 | Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service. | Poor |
| Reviews & response | 12 | 35 | The star average is only one input. We also read volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim. | Poor |
| Backlink & citation authority | 8 | 59 | Domain authority and editorial quality of the sources that attest to you. | Fair |
| Google Business Profile | 8 | 90 | Required and recommended fields; update cadence. The listing AI pulls from first. | Good |
| Speed & mobile | 7 | 46 | Core Web Vitals at the 75th percentile, on a real phone. | Fair |
| Content freshness & schema | 5 | 77 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Good |

Full method: https://localairegistry.com/methodology

How AI decides what to say about a machine shop: https://localairegistry.com/methodology#how-ai-decides-local-business. What to check before you choose one: https://localairegistry.com/methodology#how-to-choose-local-business


## Entity map

Every person, place, organization and treatment named on this page, with a stable ID and a public reference. The JSON-LD below connects them to each other.

| Entity | Type | ID on this page | Same as | Relationship to Harbinger Engineering |
| --- | --- | --- | --- | --- |
| Harbinger Engineering | LocalBusiness | #business | http://harbinger.engineering/ | Subject of this page |
| Mentor, Ohio | City | #city |  | City Harbinger Engineering is in |
| Local AI Registry | Organization | #publisher | https://localairegistry.com | Publisher of this page |
| Steve Lee | Person | #author | https://localairegistry.com/team/steve-lee | Author of this page |


## Topical map

Where this page sits in the registry. It's one profile among the machine shops in Mentor, linked to the lists and towns around it.


### Lists

- Best machine shops in Mentor: https://localairegistry.com/leaderboards/oh/mentor/machine-shop
- Best businesses in Mentor: https://localairegistry.com/leaderboards/oh/mentor


### Nearby

- /columbus: https://localairegistry.com/leaderboards/oh/columbus
- /cleveland: https://localairegistry.com/leaderboards/oh/cleveland
- /toledo: https://localairegistry.com/leaderboards/oh/toledo
- /grove-city: https://localairegistry.com/leaderboards/oh/grove-city
- /gahanna: https://localairegistry.com/leaderboards/oh/gahanna
- /dublin: https://localairegistry.com/leaderboards/oh/dublin


### Every list

- Every leaderboard in Ohio: https://localairegistry.com/leaderboards/oh


## References


### Sources cited

- [1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJc_GrngWpMYgRXUUM5NH5u2w (accessed Sep 9, 2026)
- [2] harbinger.engineering, https://harbinger.engineering/merch (accessed Sep 19, 2026)
- [3] harbinger.engineering, https://harbinger.engineering/3axis-cnc-milling (accessed Sep 19, 2026)
- [4] harbinger.engineering, https://harbinger.engineering/cnc-turning (accessed Sep 19, 2026)
- [5] harbinger.engineering, https://harbinger.engineering/fdm-plastic-3d-printing (accessed Sep 19, 2026)
- [6] harbinger.engineering, https://harbinger.engineering/laser-engraving (accessed Sep 19, 2026)
- [7] harbinger.engineering, https://harbinger.engineering/5axis-cnc-milling (accessed Sep 19, 2026)
- [8] harbinger.engineering, https://harbinger.engineering/ (accessed Sep 19, 2026)
- [9] AI engine output: ChatGPT and Gemini, read by Local AI Registry on Oct 13, 2026, https://localairegistry.com/methodology (accessed Sep 19, 2026)
- [10] harbinger.engineering, http://harbinger.engineering/ (accessed Oct 13, 2026)