›Summary
Winston & Strawn is mapped by Sartori across 12 offices in 4 countries (International footprint), headquartered in Chicago. Headcount band: 500–1,000 attorneys. Strongest mapped practices: Litigation & Disputes, Corporate & M&A, Finance & Banking. It appears in 1 Ranking Atlas page. Profile compiled from public facts, last verified 23 Jul 2026.
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
Chicago, US
Professionals
500–1,000 attorneys banded
Countries covered
4 via 12 offices
Office footprint — mapped metros
12 offices · 4 countriesPrincipal practices
Bold chips mark the firm’s deepest mapped practices (major or strong).
Seniority mix — banded, fee earners
≈400 partners · 80 counsel · 500+ 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)
International · coverage 3 of 348.7
Composite SFI
SFI sub-index · banded
73.7
Scale
SFI sub-index · banded
33.1
Reach
SFI sub-index · banded
16.4
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.
3 listings · Atlas tiers apply only within their own market or practice
| Listing | Type | Tier | |
|---|---|---|---|
| Best law firms in Chicago | Atlas ranking | Market leaders | → |
| Sartori Firm Index — United States | SFI leaderboard | — | → |
| Sartori Firm Index — hiring now | SFI leaderboard | — | → |
03 — Sources & verification Last verified 23 Jul 2026 · next review by 23 Aug 2026 · change log
Public sources
- 1 Locations - Winston Taylorpress · 2026-07-21
- 2 Locations - Winston Taylorpress · 2026-07-21
- 3 Locations - Winston Taylorpress · 2026-07-21
- 4 Locations - Winston Taylorpress · 2026-07-21
- 5 Locations - Winston Taylorpress · 2026-07-21
- 6 Locations - Winston Taylorpress · 2026-07-21
- 7 Locations - Winston Taylorpress · 2026-07-21
- 8 Locations - Winston Taylorpress · 2026-07-21
- 9 Locations - Winston Taylorpress · 2026-07-21
- 10 Locations - Winston Taylorpress · 2026-07-21
- 11 Locations - Winston Taylorpress · 2026-07-21
- 12 Locations - Winston Taylorpress · 2026-07-21
- 13 Winston & Strawn — attorney bios & practice pagesfirm_website · 2026-07-21
- 14 Winston Taylor completes historic transatlantic combination - Winston Taylorpress · 2026-07-21
- 15 The Chicago Lawyer showcases new Chicago office - Winston Taylorpress · 2026-07-21
- 16 Paris expands into new offices to support continued growth - Winston Taylorpress · 2026-07-21
- 17 Represented Chart Industries on USD13.6B Acquisition by Baker Hughes - Winston Taylorpress · 2026-07-21
- 18 Represented Chart Industries on USD13.6B Acquisition by Baker Hughes - Winston Taylorpress · 2026-07-21
- 19 Firm unveils new Miami office - Winston Taylorpress · 2026-07-21
- 20 Advising on Neura's USD1.4B funding round - Winston Taylorpress · 2026-07-21
- 21 Firm unveils new Miami office - Winston Taylorpress · 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 →Winston & Strawn 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.