Real Estate Law · New York City

Simpson Thacher & Bartlett LLP

How to read this firm's data

How to read this firm's data

Header tiles

Rank
Position among businesses named in the latest scan.
Mention rate
The share of eligible AI responses in the current ranking that named the business.
Assistants, all time
How many of the four AI assistants named this business.

Charts

Rank trend
Each dot is one published ranking, newest on the right. A flat line means this firm's rank didn't move.
Per-AI breakdown
Responses from each assistant that named this firm.
By question type
Mentions grouped by what the buyer was asking.

Full methodology →

Visit website ↗ (212) 455-2000 425 Lexington Ave, New York, NY 10017, USA
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Current ranking Sep 22 All time since Jul 23

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425 Lexington Ave, New York, NY 10017, USA

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Position

#26

latest snapshot only — 354 firms cited this week

Lifetime rank: #24 of 919

Mention rate

4.5%

latest snapshot only — 9 of 200 eligible responses

Lifetime rate: 3.5% · 49 of 1,400 eligible responses

Assistants, all time

3/4

✓ Claude ✓ ChatGPT ✓ Gemini ✗ Perplexity

Rank vs mention rate

7 snapshots · 48 days

Rank Mention rate (0–5.6%)
4.5% #31 Aug 5 Aug 5, 2026 — rank #31, mentioned in 4.5% of responses 4.5% #31 Aug 10, 2026 — rank #31, mentioned in 4.5% of responses 4.5% #22 Aug 13 Aug 13, 2026 — rank #22, mentioned in 4.5% of responses 4.5% #17 Aug 28, 2026 — rank #17, mentioned in 4.5% of responses 4.0% #27 Sep 1 Sep 1, 2026 — rank #27, mentioned in 4.0% of responses 3.5% #33 Sep 15, 2026 — rank #33, mentioned in 3.5% of responses 4.5% #26 Sep 22 Sep 22, 2026 — rank #26, mentioned in 4.5% of responses

Rank ranged #17 to #33 · mention rate 3.5%–4.5%

How to read: each dot is one snapshot. The green line is where this firm ranked among peers on that day. The dashed amber line is the mention rate — the share of AI responses in that snapshot that named this firm at all.

Rank and mention rate use different scales, so the two lines are placed side-by-side, not on top of each other. A firm can hold rank while mention rate drifts (fewer responses named anyone) or improve rank without moving mention rate (peers dropped out).

Per-AI breakdown

Counts cover all published Atlas research for this market.

Claude

all published runs

9

mentions

ChatGPT

all published runs

46

mentions

Gemini

all published runs

10

mentions

Perplexity

all published runs

0

mentions

By question type

All-time mentions grouped by the type of question the buyer asked.

Broad Authority
56 mentions
Style Approach
5 mentions
Specific Need
3 mentions
Process
1 mention

Measurement window

All-time results for this market

Observed Jul 23, 2026–Sep 30, 2026

Responses analyzed

1,800

Responses naming business

65

Lifetime mention rate

3.6%

Ranked snapshots

12

These totals cover all analyzed responses for this city and category. Current rank and confidence use the latest dated ranking.

Peer firms in New York City real estate law

Other firms ChatGPT, Claude, Gemini, and Perplexity name in this category. Ranks and mention rates below are from the Sep 22, 2026 edition — directly comparable to the "Mention rate, this edition" number above.

See the full Real Estate Law ranking →

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