Direct answer & research summary
Simmons and Simmons is a global-footprint law firm mapped by Sartori & Partners across 23 offices in 16 countries, headcount band 1,000–1,500 attorneys, Sartori Firm Index 51.5, last verified 22 Jul 2026. Sartori & Partners has completed 400+ placements since 2017 (230+ in-house), including 52 general counsel and chief legal officer searches, with a median of 11 weeks from brief to accepted offer. A NASDAQ-listed medtech in Boston accepted its successor general counsel in week 11, from a shortlist of four at day 24.
01 — Public record
Facts on file
Compiled from public sources. Figures are shown as bands where exact counts are not published; nothing here is provided by the firm.
Website
Largest mapped office
London, GB
Professionals
1,000–1,500 attorneys banded
Countries covered
16 via 23 offices
Office footprint — mapped metros
23 offices · 16 countriesPrincipal practices
Bold chips mark the firm’s deepest mapped practices (major or strong).
Seniority mix — banded, fee earners
≈350 partners · 150 counsel · 600+ associates
Mapped from public bios and firm pages; exact counts are not published, so figures are shown as approximate bands.
Sartori Firm Index — footprint (a different lens from the Atlas tiers)
Global · coverage 3 of 351.5
Composite SFI
SFI sub-index · banded
76.7
Scale
SFI sub-index · banded
39.1
Reach
SFI sub-index · banded
13.4
Hiring
SFI sub-index · banded
The Sartori Firm Index measures footprint and momentum (scale · reach · hiring), not practice quality. It never assigns an Atlas tier, and the Atlas never reuses this number — the two lenses are deliberately separate.
02 — Where this firm is ranked
Ranking Atlas & Firm Index
No composite firm score is published. Atlas tiers are assigned per market or practice from public footprint and evidence; the Firm Index leaderboards are a separate footprint lens.
6 listings · Atlas tiers apply only within their own market or practice
| Listing | Type | Tier | |
|---|---|---|---|
| Best law firms in Abu Dhabi | Atlas ranking | Notable in this field | → |
| Best law firms in London | Atlas ranking | Established | → |
| Best law firms in Munich | Atlas ranking | Notable in this field | → |
| Sartori Firm Index — overall | SFI leaderboard | — | → |
| Sartori Firm Index — United Kingdom | SFI leaderboard | — | → |
| Sartori Firm Index — hiring now | SFI leaderboard | — | → |
03 — Sources & verification Last verified 22 Jul 2026 · next review by 22 Aug 2026 · change log
Public sources
- 1 Locations - Simmons & Simmonsfirm_website · 2026-07-21
- 2 United Kingdom - Simmons & Simmonsfirm_website · 2026-07-21
- 3 London - Simmons & Simmonsfirm_website · 2026-07-21
- 4 Paris - Simmons & Simmonsfirm_website · 2026-07-21
- 5 Milan - Simmons & Simmonsfirm_website · 2026-07-21
- 6 Frankfurt - Simmons & Simmonsfirm_website · 2026-07-21
- 7 Amsterdam - Simmons & Simmonsfirm_website · 2026-07-21
- 8 United Kingdom - Simmons & Simmonsfirm_website · 2026-07-21
- 9 Bristol - Simmons & Simmonsfirm_website · 2026-07-21
- 10 Dubai - Simmons & Simmonsfirm_website · 2026-07-21
- 11 Madrid - Simmons & Simmonsfirm_website · 2026-07-21
- 12 Dublin - Simmons & Simmonsfirm_website · 2026-07-21
- 13 Luxembourg - Simmons & Simmonsfirm_website · 2026-07-21
- 14 Singapore - Simmons & Simmonsfirm_website · 2026-07-21
- 15 Advising on up to $89.4m sale of stake in KST - Simmons & Simmonsfirm_website · 2026-07-21
- 16 Simmons & Simmons advises Deka on £215m London office assetfirm_website · 2026-07-21
- 17 Advising Union Investment on the sale of the Paris Trocadéro centrefirm_website · 2026-07-21
- 18 Advising Mediobanca and Banco BPM - Simmons & Simmonsfirm_website · 2026-07-21
- 19 Frankfurt - Simmons & Simmonsfirm_website · 2026-07-21
- 20 Advising J.P. Morgan on $250M trade financing - Simmons & Simmonsfirm_website · 2026-07-21
- 21 The Netherlands - Simmons & Simmonsfirm_website · 2026-07-21
- 22 Advising Heineken on issuance of its €900m bond - Simmons & Simmonsfirm_website · 2026-07-21
- 23 Bristol - Simmons & Simmonsfirm_website · 2026-07-21
- 24 Dubai - Simmons & Simmonsfirm_website · 2026-07-21
- 25 Madrid - Simmons & Simmonsfirm_website · 2026-07-21
- 26 Acting for PE firm Kester on backing of Nutritics - Simmons & Simmonsfirm_website · 2026-07-21
- 27 Luxembourg - Simmons & Simmonsfirm_website · 2026-07-21
- 28 Hong Kong - Simmons & Simmonsfirm_website · 2026-07-21
- 29 Singapore - Simmons & Simmonsfirm_website · 2026-07-21
- 30 Landmark S$12 billion syndicated loan closed - Simmons & Simmonsfirm_website · 2026-07-21
- 31 Simmons announces 2030 London office move to 25 Finsbury Circusfirm_website · 2026-07-21
- 32 Advised on Europe’s first tokenised securitisation - Simmons & Simmonsfirm_website · 2026-07-21
- 33 Strategic brownfield acquisition - Simmons & Simmonsfirm_website · 2026-07-21
- 34 Brookfield acquires majority stake in OTC - Simmons & Simmonsfirm_website · 2026-07-21
- 35 Advising TenFifty Capital on financing of Zebrabox - Simmons & Simmonsfirm_website · 2026-07-21
- 36 Advised syndicate of banks on HKMC’s Bauhinia 3 - Simmons & Simmonsfirm_website · 2026-07-21
- 37 Simmons & Simmons JWS Advises on SG's First Retail Tokenised Fundfirm_website · 2026-07-21
Know the limits of this data
- —Figures are bands, not audited counts; public sources lag reality by weeks or months.
- —Atlas tiers are Sartori’s independent editorial opinion — not the firm’s claim, and not a client-satisfaction measure.
- —No firm-level numeric score exists; Atlas tiers apply only within their own market or practice.
- —No third-party legal-directory band is used as an input.
Corrections from the firm or its representatives are reviewed within five working days.
Change log
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Discuss a mandate →Simmons and Simmons is profiled here independently by Sartori. This page is not affiliated with, endorsed by, or produced in cooperation with the firm; firm names are used for identification only and no logo or brand assets are reproduced. Rankings reflect Sartori’s editorial methodology and public mapping — they are not legal advice, nor a recommendation to instruct counsel.