Home Security Systems in San Francisco — The Most Recommended Companies, Measured on Leading AI Assistants
Ask leading AI assistants for a security company in San Francisco and it answers with specific names. In July 2026 we logged those names systematically: 8 question styles, 8 checks, and 51 San Francisco-area companies in the comparison set.
Only 9 of those 51 companies were ever recommended: a 18% hit rate. The steadiest answer was Aura Fire Safety, named in all 4 checks.
One step down: Redwood Security Systems, named in 3 of 4 checks. 2 more companies came up less often and are listed below.
Why no "#1"? Because it wouldn't hold. Run the same questions again and the top name often changes, while the count of checks that named a company stays put — so the count is what we publish. A single mention isn't enough to make the list.
Among the 34 metros in the July 2026 run, San Francisco ranks 7th by cohort size, with 51 security companies benchmarked.
Only 9 of 51
security companies in the San Francisco cohort ever came up in AI's answers (18%). The full measured list:
Rankings are measured and cannot be purchased — sponsored blocks are labeled advertising and sit outside the ranked list.
Ask AI the same question twice and the answer can change. So we do not crown a number one. We publish how many of the 4 checks named each company. Companies named in more checks are the ones AI keeps coming back to. Companies named in only one check are not listed: a single mention does not repeat reliably.
Home security companies in San Francisco
Across 4 home security checks in San Francisco, 6 of 33 verified companies were recommended.
Named in 3 of 4 checks
- 3of 4
Redwood Security Systems
San Francisco, CA · Recommended in 3 of 4 AI checks · 14 Google reviews
Redwood Security Systems surfaced in 3 of the 4 checks when we asked. It has 14 Google reviews behind it.
Named in 2 of 4 checks
Listed alphabetically — these 2 companies scored the same.
- 2of 4
McMillan Electric
San Francisco, CA · Recommended in 2 of 4 AI checks · 24 Google reviews
McMillan Electric was recommended in 2 of the 4 checks. Google shows 24 reviews for it.
- 2of 4
Northwest Security
San Francisco, CA · Recommended in 2 of 4 AI checks
Named in 2 of the 4 checks: Northwest Security.
3 more companies were named in exactly one of the 4 home security checks. One mention comes back less than half the time when we ask again, so they are measured but not published.
Fire alarm & fire protection companies in San Francisco
When the question is fire alarm & fire protection, AI names 3 of the 18 San Francisco companies we verified.
Named in all 4 checks
- 4of 4
Aura Fire Safety
San Francisco, CA · Recommended in 4 of 4 AI checks · 12 Google reviews
Named in every one of the 4 checks, Aura Fire Safety is one of the San Francisco companies AI keeps coming back to. It has 12 Google reviews behind it.
2 more companies were named in exactly one of the 4 fire alarm & fire protection checks. One mention comes back less than half the time when we ask again, so they are measured but not published.
Benchmark date: July 2026 · 8 checks · Measured, never sold — money cannot put a company on this list. Companies named in only one check are left off: one mention doesn't repeat reliably.
The questions behind "best home security in San Francisco"
The San Francisco board was built from these exact questions; each company AI mentioned in reply got counted:
- “Who is the best home security company in San Francisco, California?”
- “I want a security system installed at my house in San Francisco, California. Who should I hire?”
- “What is the most recommended local alarm company in San Francisco, California?”
- “What are the top rated home security and alarm monitoring companies near San Francisco, California?”
- “Who is the best fire alarm company in San Francisco, California?”
- “I need fire alarm installation and inspection for my building in San Francisco, California. Who should I hire?”
- “What is the most recommended fire protection company in San Francisco, California?”
- “What are the top rated fire alarm and fire protection companies near San Francisco, California?”
What the San Francisco numbers say
- 50 combined Google reviews back the names on this board.
- Compared with the edition-wide average (6.3%), San Francisco's 18% sits above the line.
- Aura Fire Safety was named in 4 of 4 checks — the closest thing San Francisco has to a consensus answer.
- 9 companies got at least one mention; 4 got more than one. The list below is the 4.
On the San Francisco board? Tell your customers — free.
Every listed company can claim a free embeddable "Most Recommended" badge for its website. It shows how many of our checks named you and links back to this page, so anyone can verify it's real.
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See if AI recommends youFree check by AI Security Edge, the team behind this benchmark. How it works
Common questions about the San Francisco list
Does AI recommend many security companies in San Francisco?
The July 2026 answer is 9. We verified 51 companies around San Francisco and ran 8 checks; 18% of the cohort ever got a mention.
Who comes up most on the San Francisco list?
In the July 2026 measurement, Aura Fire Safety — it came up in every one of the 4 checks, more often than any other company we tracked here.
Why don't you rank the San Francisco companies 1, 2, 3?
Because a number one wouldn't hold. Ask AI the same question again and the top name often changes, while the number of checks that named a company stays about the same. So we publish the count: companies named in the same number of the 4 checks are grouped together and listed alphabetically, because nothing in the measurement separates them.
What questions were behind the San Francisco checks?
We asked 8 customer-style questions, such as "Who is the best home security company in San Francisco, California?", and logged each company AI named in response. All the phrasings we used are shown above.
Is a spot on the San Francisco board for sale?
Never. The board is measured, never sold: the only way on is to be named by AI in our checks. Money cannot buy a place on this list. Anything advertised alongside it is labeled as advertising.
Is this San Francisco data fresh?
This edition was measured in July 2026. We re-run the same benchmark quarterly with the same methodology, so companies that improve their AI visibility can appear in the next update.
New to San Francisco? These security companies are just getting started.
Everything above this line was measured. The list on this page comes from asking AI assistants real questions and counting who they named — no one can buy their way onto it.
This section is different, and we want to be plain about it. The businesses below are brand new. They have not been measured, they have no rank and no score, and they are not part of the list above. They are here because they asked to be, we checked that they are real, and a business that opened last month has no way to show up in a ranking built on history. Nobody paid for a spot here — it is free, and it is not an endorsement.
Just opened a company in San Francisco? You can be the first one here.
Tell us who you are and we'll add you to this section — free. It is not a ranking and it will never say you are ranked, because you are not: you are new. When we re-run the benchmark, a real spot on the list above is something you earn, not something we hand out.
Add your new businessFull methodology: how these rankings are measured. Want the national picture? See every U.S. metro we benchmarked.