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AI Visibility Index · September 2026

Architects in San Francisco that AI assistants recommend

We asked ChatGPT and Claude the four questions a buyer asks when looking for architects in San Francisco, three times each, in English, and counted who they named. These are the businesses named in two or more of the 24 answers.

Check whether AI names youSee the ranking

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Architects · San Francisco
67%of answers named Fougeron Architecture
Answers
24
Businesses named
31
Named only once
16
Named by 2+ assistants
11 of 15
Named again on a rerun
40%

Edition September 2026. Download the data

Asked for architects in San Francisco, ChatGPT and Claude most often named Fougeron Architecture (67% of answers), Gast Architects (54%) and Turnbull Griffin Haesloop Architects (46%). Across 24 answers they named 31 different businesses, 16 of them only once. Each of four buyer questions was asked three times, in English, in September 2026.

The ranking

Share is the fraction of the 24 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Architects in San Francisco named by AI assistants, September 2026
#BusinessShareChatGPTClaudeQuestionsAvg. position
1Fougeron Architecture67%95%: 47 to 82%75%58%4 of 42
2Gast Architects54%95%: 35 to 72%58%50%3 of 43.2
3Turnbull Griffin Haesloop Architects46%95%: 28 to 65%67%25%4 of 42.9
4Aidlin Darling Design42%95%: 25 to 61%50%33%2 of 41.6
5Feldman Architecture33%95%: 18 to 53%25%42%3 of 41.4
6Jensen Architects29%95%: 15 to 49%25%33%4 of 43.3
7Ian Moore Architects21%95%: 9 to 41%25%17%2 of 42.6
8Mark Cavagnero Associates13%95%: 4 to 31%8%17%1 of 43
9WA Design Architects13%95%: 4 to 31%8%17%2 of 43.3
10Butler Armsden Architects13%95%: 4 to 31%17%8%2 of 43.7
11Walker Warner Architects8%95%: 2 to 26%17%0%2 of 41.5
12Jennifer Weiss Architecture8%95%: 2 to 26%0%17%2 of 43
13Sutro Architects8%95%: 2 to 26%0%17%2 of 43
14Canyon Design Build8%95%: 2 to 26%8%8%1 of 43.5
15Mark English Architects8%95%: 2 to 26%17%0%1 of 44

Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 16 more names came up in a single answer and are counted above but not listed.

What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#ChatGPTClaude
1Fougeron Architecture75%Fougeron Architecture58%
2Turnbull Griffin Haesloop Architects67%Gast Architects50%
3Gast Architects58%Feldman Architecture42%
4Aidlin Darling Design50%Aidlin Darling Design33%
5Feldman Architecture25%Jensen Architects33%

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Correct or remove a listing
Named by AI assistants: Architects in San Francisco, AIGROW AI Visibility Index, September 2026
<a href="https://aigrow.gg/index/architects/san-francisco"><img src="https://aigrow.gg/badges/index/2026-09/architects/san-francisco.svg" width="312" height="100" alt="Named by AI assistants: Architects in San Francisco, AIGROW AI Visibility Index, September 2026"></a>

The questions

Asked word for word, three times each, to every assistant through its API. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

  1. 1Who is the best architect in San Francisco?
  2. 2I want to renovate my house in San Francisco. Which architect would you recommend?
  3. 3Which architecture firm in San Francisco is good at designing new homes?
  4. 4Which architect in San Francisco would you recommend for an apartment renovation?

How to read this page

The full method
What it measures
Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter
24 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings
Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong
If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.

Elsewhere in the Index

Architects elsewhere
AustinBostonChicagoDallasHoustonLos Angeles
Also in San Francisco
DentistsLawyersAccountantsPlumbersGymsReal estate agencies

Is your business on this list?

The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.

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Edition September 2026 · data under CC BY 4.0