# American Global Security, Inc., Chatsworth: a security guard service in Chatsworth (2026 guide)

Source: Local AI Registry, https://localairegistry.com/biz/ca/chatsworth/american-global-security-inc-chatsworth-ca. Free to reuse with a link back.

By Steve Lee, founder and CEO of Local AI Registry. Fact-checked against 29 sources. Updated 2026-09-02. Owner review: not yet.

Canonical: https://localairegistry.com/biz/ca/chatsworth/american-global-security-inc-chatsworth-ca

## Photos

- ![Photo 1](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtjc8hjo0g7sye6bp2u5giou%2F0.jpg)
- ![Photo 2](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtjc8hjo0g7sye6bp2u5giou%2F1.jpg)
- ![Photo 3](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtjc8hjo0g7sye6bp2u5giou%2F2.jpg)
- ![Photo 4](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtjc8hjo0g7sye6bp2u5giou%2F3.jpg)
- ![Photo 5](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmtjc8hjo0g7sye6bp2u5giou%2F4.jpg)


## In short

American Global Security, Inc. is a security guard service in Chatsworth, CA. Its AI Score is 37 of 100, which is poor.

Every fact on this page carries one of three marks: Confirmed (from their website, Google Business Profile, review sites, licensing boards, or measured by Local AI Registry), Visitor submitted (added by a person, with a date and how they know), or AI guess (what AI engines like ChatGPT are saying, not confirmed by anyone). Every mark points to a reference at the end of this page.


## Key facts

| Fact | Value |
| --- | --- |
| Type | Security guard service |
| Address | 9410 Topanga Canyon Blvd Ste 202, Chatsworth, CA 91311, USA |
| Hours | Mon to Sun Open 24 hours |
| Phone | (877) 482-7343 |
| Owner | Nothing found |
| Rating | 4.9 across 405 reviews on Google |
| Known for | American Global Security is best known for its mobile patrolling services, which enhance safety and security for various clients. Their reliable presence has made a significant impact on event security and parking enforcement in Los Angeles. |
| Prices | Nothing found |
| Quietest time | Sunday |
| Parking | Nothing found |
| Last verified | September 19, 2026, 11:34 AM |


## 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 | 9410 Topanga Canyon Blvd Ste 202, Chatsworth, CA 91311, USA | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Location info | Description | American Global Security (AGS) is a full-service security guard company providing services using uniformed armed and unarmed security officers for residential, retail, industrial and commercial properties. AGS also offers solutions in implementing additional security measures and processes such as security patrols, loss prevention, fire watch, and executive protection. Our focus is based on our client’s needs from our professional security guards. We acknowledge that every client has unique needs and requires a unique security plan in place. Our security guards are trained to AGS’s highest standards and will be dedicated to following your unique security processes and protocols. | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Location info | Hours | Mon to Sun Open 24 hours | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Location info | Mondays | Open 24 hours | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Location info | Name | American Global Security, Inc. | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Location info | Phone | (877) 482-7343 | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Hours | Monday | Open 24 hours | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Hours | Tuesday | Open 24 hours | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Hours | Wednesday | Open 24 hours | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Hours | Thursday | Open 24 hours | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Hours | Friday | Open 24 hours | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Hours | Saturday | Open 24 hours | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Hours | Sunday | Open 24 hours | Confirmed | Google Business Profile, checked Sep 1, 2026 |
| Services | Service | Apartment complex security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Armed security guards | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Auto dealership security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Cemetery security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Clients | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Commercial property security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Concierge security guards | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Construction site security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Dispensary security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Financial institution security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Government facility security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Inc | Confirmed | Google Business Profile, checked Sep 19, 2026 |
| Services | Service | Industries | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Manufacturing facility security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Mobile surveillance units | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Parking lot security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Private property | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Private security guards | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Religious facility security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Remote surveillance monitoring | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Research facility security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Residential security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Restaurant security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Solar farm security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Theme park security guard | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Transportation security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Unarmed security guards | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Utility agency security | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Vacant properties | Confirmed | Business website, checked Sep 19, 2026 |
| Links | Facebook | https://facebook.com/agspatrol | AI guess | Our record |
| Links | Instagram | https://instagram.com/americanglobalsecurityinc | AI guess | Our record |
| Links | Website | http://americanglobalsecurity.com/?utm_source=google&utm_medium=organic&utm_id=gbp_chatsworth_hq | Confirmed | Google Business Profile, checked Sep 1, 2026 |


## Services and prices

These are the 29 services American Global offers, with the price where we have one and where it came from.

| Service | Price | Price mark | Price evidence | Service mark |
| --- | --- | --- | --- | --- |
| Cemetery security |  |  |  | Confirmed |
| Inc |  |  |  | Confirmed |
| Industries |  |  |  | Confirmed |
| Research facility security |  |  |  | Confirmed |
| Parking lot security |  |  |  | Confirmed |
| Clients |  |  |  | Confirmed |
| Mobile surveillance units |  |  |  | Confirmed |
| Manufacturing facility security |  |  |  | Confirmed |
| Vacant properties |  |  |  | Confirmed |
| Auto dealership security |  |  |  | Confirmed |
| Commercial property security |  |  |  | Confirmed |
| Concierge security guards |  |  |  | Confirmed |
| Construction site security |  |  |  | Confirmed |
| Transportation security |  |  |  | Confirmed |
| Unarmed security guards |  |  |  | Confirmed |
| Utility agency security |  |  |  | Confirmed |
| Apartment complex security |  |  |  | Confirmed |
| Private property |  |  |  | Confirmed |
| Private security guards |  |  |  | Confirmed |
| Religious facility security |  |  |  | Confirmed |
| Remote surveillance monitoring |  |  |  | Confirmed |
| Residential security |  |  |  | Confirmed |
| Restaurant security |  |  |  | Confirmed |
| Solar farm security |  |  |  | Confirmed |
| Theme park security guard |  |  |  | Confirmed |
| Government facility security |  |  |  | Confirmed |
| Financial institution security |  |  |  | Confirmed |
| Dispensary security |  |  |  | Confirmed |
| Armed security guards |  |  |  | Confirmed |


### Known for

American Global Security is best known for its mobile patrolling services, which enhance safety and security for various clients. Their reliable presence has made a significant impact on event security and parking enforcement in Los Angeles.


## The team

Nothing found


## Visiting American Global

Address: 9410 Topanga Canyon Blvd Ste 202, Chatsworth, CA 91311, USA. Phone: (877) 482-7343. Hours: Mon to Sun Open 24 hours. (Confirmed, Google Business Profile, checked September 1, 2026 at 5:08 PM.)


### Location info from Google Business Profile

Business description, written by American Global on its Google Business Profile: "American Global Security (AGS) is a full-service security guard company providing services using uniformed armed and unarmed security officers for residential, retail, industrial and commercial properties. AGS also offers solutions in implementing additional security measures and processes such as security patrols, loss prevention, fire watch, and executive protection.
Our focus is based on our client’s needs from our professional security guards. We acknowledge that every client has unique needs and requires a unique security plan in place. Our security guards are trained to AGS’s highest standards and will be dedicated to following your unique security processes and protocols."


### When to go

Quietest day: Sunday. Busiest day: Thursday. From the popular times on its Google listing.


### Parking and getting in

Nothing found


### Nearby

| Place | Type | Distance |
| --- | --- | --- |
| Topanga Canyon / Prairie | Bus stop | 3 min walk |
| Topanga Canyon / Plummer | Bus stop | 3 min walk |
| Topanga Canyon / Prairie | Transit station | 3 min walk |
| Topanga Canyon / Plummer | Bus stop | 3 min walk |
| Plummer / Topanga Canyon | Transit station | 3 min walk |
| Topanga Canyon / Prairie | Bus stop | 4 min walk |


## Reputation

4.9 average across 405 reviews: Google 25. (Confirmed, read September 1, 2026.)

American Global Security is noted for its dependable service and effective communication, making it a solid choice for event and property security. (AI guess, from 405 reviews.)


### What people like

- Professional and organized event security
- Responsive communication from staff
- Dependable and punctual guards


### What people do not like

- Inconsistent communication
- Guards showing up late


### Press

No press story about American Global found yet.


### Awards

None named yet.


### Directories

Directory listings not read yet.


## Recent updates from American Global

American Global hasn't posted an update here yet.


## Questions people ask


### how much is a first visit around here

No answer yet


### Anything this place is known for doing well?

No answer yet


### is there a rewards thing here

No answer yet


### people keep recommending American Global, what for?

No answer yet


### first visit at American Global, what do I need to bring?

No answer yet


### quietest day to hit American Global?

No answer yet


### bad experiences here, anyone?

No answer yet


### do I need to book this place or can I just turn up?

No answer yet


### anywhere cheaper than American Global in Chatsworth that is still good?

No answer yet


### Why do people rate American Global?

No answer yet


### best security guard service in Chatsworth

No answer yet


### American Global or Alliance Guard?

No answer yet


### killing time on Topanga Canyon, any ideas

No answer yet


### parking at American Global, where does everyone put the car?

No answer yet


### Are the hours on Google right for American Global in Chatsworth?

No answer yet


### paying in instalments, is that possible here

No answer yet


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

No answer yet


## What AI gets wrong about American Global

We ask ChatGPT about American Global. These are the answers that disagree with the record.

ChatGPT, read by Local AI Registry on Sep 1, 2026.

No capture has disagreed with the record yet.


## The AI Score: 37 of 100

The AI Score measures how likely AI engines are to recommend a business, and how accurately. Chatsworth security guard services run 25 to 51. Fair starts at 45, good at 65. American Global scores 37, above the Chatsworth average of 31. The same method scores every business on the registry.

| Signal | Weight | Score | What it measures | American Global |
| --- | --- | --- | --- | --- |
| Retrieval grounding | 26 | 25 | 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. | Nobody at all was recommended in the 1 answer we hold, so there is nothing to score. |
| Reviews & response | 12 | 96 | 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. | Good |
| Backlink & citation authority | 8 | 61 | 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 | 60 | Core Web Vitals at the 75th percentile, on a real phone. | Fair |
| Content freshness & schema | 5 | 81 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Good |

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


## How AI decides what to tell you about a security guard service

When you ask ChatGPT, Gemini or Google about a local business, the AI doesn't visit it. It reads what's already written about it: the business's website, its Google Business Profile, review sites, news stories and directories like this one. Then it repeats what those sources agree on.

That's why AI gets small facts wrong. If Yelp says a place is open Mondays and the website says it isn't, the AI has to pick one. The table above shows the answers that disagree with the record today.

The more sources agree, and the more specific they are, the more confidently AI recommends a business. A review that names who helped and what they did tells an AI far more than one that says "great place."


## How to choose a security guard service in California, with or without AI

A few checks take ten minutes and tell you more than any rating.

- Check that the hours and phone number match on Google, Yelp and the business's own website. Mismatches are how people end up at a locked door.
- Read reviews that name a person and what they did. Vague praise is easy to fake.
- Look for recent reviews and recent posts. A page nobody has touched in a year may not match the business today.
- Ask for the price before you go, and ask what it includes.
- Where the work needs a license, ask whose license it is and look it up with California.


## How to read the marks on this page

- Confirmed (solid circle): from a known source. The business website, its Google Business Profile, review sites like Yelp, Healthgrades and RealSelf, a licensing board, or measured by Local AI Registry.
- Visitor submitted (hollow circle): added or corrected by a person, with the date and how they know, like a phone call or a visit.
- AI guess (hollow triangle): what AI engines are saying right now. Nobody has confirmed it.


## About the author

Steve Lee is the founder and CEO of Local AI Registry and sets its editorial standards. He is a former Google executive in Search and a former Microsoft executive, with more than 20 years in digital: search, local discovery, and how people find businesses online. He is based in Irvine.

- Expertise: search at Google and Microsoft, AI search, answer engine optimization, generative engine optimization, local SEO, structured data and entity mapping.
- Industry: medical aesthetics, injectables, med spa operations and marketing.
- Disclosure: Local AI Registry sells services to business owners, including American Global if it claims this page. That does not change what this page says. Every fact carries its source.


## 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 American Global |
| --- | --- | --- | --- | --- |
| American Global Security, Inc. | LocalBusiness | #business | http://americanglobalsecurity.com/?utm_source=google&utm_medium=organic&utm_id=gbp_chatsworth_hq | Subject of this page |
| Chatsworth, California | City | #city | Nothing found | City American Global is in |
| Local AI Registry | Organization | #publisher | https://localairegistry.com | Publisher of this page |
| Steve Lee | Person | #author | https://localairegistry.com/team | Author of this page |


## Topical map

Where this page sits in the registry. It's one profile among the security guard services in Chatsworth, linked to the lists and towns around it.


### Lists

- Best security guard services in Chatsworth: https://localairegistry.com/leaderboards/ca/chatsworth/security-guard-service
- Best businesses in Chatsworth: https://localairegistry.com/leaderboards/ca/chatsworth


### Nearby

- /los-angeles: https://localairegistry.com/leaderboards/ca/los-angeles
- /san-francisco: https://localairegistry.com/leaderboards/ca/san-francisco
- /san-jose: https://localairegistry.com/leaderboards/ca/san-jose
- /san-diego: https://localairegistry.com/leaderboards/ca/san-diego
- /irvine: https://localairegistry.com/leaderboards/ca/irvine
- /fresno: https://localairegistry.com/leaderboards/ca/fresno


### Every list

- Every leaderboard in California: https://localairegistry.com/leaderboards/ca


## Frequently asked questions


### What is AI search optimization for local business?

Getting a business named when a neighbor asks ChatGPT, Gemini, or Perplexity for a recommendation. Some call it AI SEO, some call it generative engine optimization. Traditional SEO fights for ten blue links; this fights for the one answer an assistant says out loud. The AI Score on this page measures the eight signals that drive it.


### What is Local AI Registry?

The public record of how AI sees local business. We score every business we list by one published method, we keep the questions people ask about it in one place, and we never sell rank. Looking up any business here is free.


### How does this page help a business get recommended by AI?

Assistants read public pages before they answer. This one states what the business does, what people ask about it, and what the Record answers, in one place a machine can read. Correcting what is wrong here changes what an assistant repeats next.


### Who writes the answers here?

Registry AI writes the first answer under every question, from the Record and the public sources named beneath it. Neighbors write the rest under pseudonyms. A registered owner can reply as the business, and their reply says so.


### I own American Global Security, Inc.. How do I fix something or rank higher?

Register the page. It is free, it takes about five minutes, and it lets you correct the Record and reply as the business. Nothing on this page is for sale, so the only thing that moves the score is the work.


## References


### Sources cited

- [1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJv8er09WbwoARpOe1hNNtLTk (accessed Sep 1, 2026)
- [2] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/apartments-and-condominium-security (accessed Sep 19, 2026)
- [3] americanglobalsecurity.com, https://americanglobalsecurity.com/services/armed-security-guards (accessed Sep 19, 2026)
- [4] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/auto-dealership-security (accessed Sep 19, 2026)
- [5] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/cemetery-security (accessed Sep 19, 2026)
- [6] americanglobalsecurity.com, https://americanglobalsecurity.com/clients (accessed Sep 19, 2026)
- [7] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/commercial-security-guard-services (accessed Sep 19, 2026)
- [8] americanglobalsecurity.com, https://americanglobalsecurity.com/services/concierge-security-guards (accessed Sep 19, 2026)
- [9] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/construction-site-security-services (accessed Sep 19, 2026)
- [10] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/dispensary-security-service (accessed Sep 19, 2026)
- [11] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/financial-bank-security (accessed Sep 19, 2026)
- [12] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/government-facility-security (accessed Sep 19, 2026)
- [13] americanglobalsecurity.com, https://americanglobalsecurity.com/industries (accessed Sep 19, 2026)
- [14] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/manufacturing-plant-security (accessed Sep 19, 2026)
- [15] americanglobalsecurity.com, https://americanglobalsecurity.com/services/mobile-surveillance-units (accessed Sep 19, 2026)
- [16] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/parking-lot-security (accessed Sep 19, 2026)
- [17] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/private-home-security-services (accessed Sep 19, 2026)
- [18] americanglobalsecurity.com, https://americanglobalsecurity.com/services/private-security-guard-services (accessed Sep 19, 2026)
- [19] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/houses-of-worship-security (accessed Sep 19, 2026)
- [20] americanglobalsecurity.com, https://americanglobalsecurity.com/services/remote-surveillance-monitoring (accessed Sep 19, 2026)
- [21] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/research-facilities-security-services (accessed Sep 19, 2026)
- [22] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/residential-security-guard-services (accessed Sep 19, 2026)
- [23] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/restaurant-security (accessed Sep 19, 2026)
- [24] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/solar-farm-security (accessed Sep 19, 2026)
- [25] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/theme-park-security-guard (accessed Sep 19, 2026)
- [26] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/transportation-logistic-security (accessed Sep 19, 2026)
- [27] americanglobalsecurity.com, https://americanglobalsecurity.com/services/unarmed-security-guards (accessed Sep 19, 2026)
- [28] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/utility-agency-security-services (accessed Sep 19, 2026)
- [29] americanglobalsecurity.com, https://americanglobalsecurity.com/industries/vacant-properties-security-guard (accessed Sep 19, 2026)