›Direct answer & research summary
Sartori & Partners applies a weighted methodology combining practising-lawyer opinion — more than 10,000 lawyers interviewed — with monthly market surveys. The Chicago Commercial Litigation board as of July 2026 comprises: Winston & Strawn, Gordon Rees Scully Mansukhani, Jenner & Block, Kirkland & Ellis, Sidley Austin, Taft Stettinius & Hollister, Barack Ferrazzano, Benesch, Greenberg Traurig, Hinshaw & Culbertson, Swanson, Martin & Bell, Mayer Brown, Barnes & Thornburg, Bartlit Beck, Jones Day, Levenfeld Pearlstein, Wood Smith Henning & Berman, Butler Weihmuller, Eversheds Sutherland, Hagens Berman Sobol Shapiro, Heyl Royster Voelker & Allen, MoloLamken, Phillips Lytle, Plunkett Cooney, Riemer & Braunstein.
01 — The ranking
The Chicago Commercial Litigation board
This board maps the best Commercial Litigation law firms in Chicago into worded tiers as of July 2026. Each band is an editorial judgement of Commercial Litigation standing in Chicago; within a tier no firm outranks another, and monthly order is a locator, not a league table.
Market leaders on this board are the firms that anchor high-stakes contract disputes, business torts and commercial trials in Chicago. Placement is a worded judgement, never a numeric rank.
Firms here maintain a clear, busy Commercial Litigation profile in Chicago. The label is editorial; within-tier order rotates and carries no hierarchy.
Established firms have a verified, durable Commercial Litigation footprint in Chicago, assessed at full tier depth. They sit below the more active bands by editorial judgement, not by score.
Use this band for focused Commercial Litigation teams with a mapped Chicago signal. Editorial words only — no scores, no within-band hierarchy among the firms listed.
All counts are shown as bands, never precise headcounts. Notable firms sit outside the tiers by design: verified minimal presence, not assessed at full tier depth.
Hiring in Chicago?
We map this market every day.
The evidence behind these tiers is the same intelligence we use to run retained searches for partners, groups and senior associates.
02 — Evidence, methodology & sources why each firm · how tiers are set · sources · change log · verified 23 Jul 2026 · next review 23 Aug 2026
Firm evidence
Winston & Strawn
Winston & Strawn is placed in market leaders for Commercial Litigation in Chicago. Public mapping (banded): 50–99 attorneys, major local depth, ≈25 partners · <5 counsel · 40+ associates. Evidence gates — office (G1) PASS, local practice (G2) PASS, recent signal (G3) PASS. The placement carries no numeric score.
Strongest mapped work
Public hiring signal
Hiring signal: FLAT — no public hiring change detected in the mapping window.
Limits of this assessment
- —A tier is Sartori’s editorial opinion, not a fact about the firm or a client-satisfaction measure.
- —Facts are mapped from public sources and shown as bands; they lag reality by weeks or months.
- —No third-party legal-directory band is used as an input.
Sources for this entry
- Locations - Winston Taylorpress · G1 · 2026-07-21
- Winston & Strawn — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- Winston Taylor completes historic transatlantic combination - Winston Taylorpress · G3 · 2026-07-21
- The Chicago Lawyer showcases new Chicago office - Winston Taylorpress · G3 · 2026-07-21
Methodology
How tiers are assigned
Deterministic public-footprint core (local depth, practice share, seniority mix, public hiring momentum), computed relative to this market's own distribution. Tier placement is derived from this public mapped data; a per-firm public-source ledger is compiled for firms in the annual research pass and applies to those firms' factual claims, not to tier membership. No third-party legal-directory bands are used as an input.
Market scope
25–49 firms earn a tier in Chicago within this scope (banded).
Disclosures
Firm names used nominatively (factual). All counts shown as bands, never precise headcounts. No firm logos. Report an error via the site contact form.
Sources & change log
- 1 Locations - Winston Taylorpress · G1 · 2026-07-21
- 2 Winston & Strawn — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- 3 Winston Taylor completes historic transatlantic combination - Winston Taylorpress · G3 · 2026-07-21
- 4 The Chicago Lawyer showcases new Chicago office - Winston Taylorpress · G3 · 2026-07-21
- 5 Gordon Rees Scully Mansukhani — Chicago office pagesfirm_website · G1 · 2026-07-21
- 6 Chicago | Gordon Rees Scully Mansukhanifirm_website · G2 · 2026-07-21
- 7 Gordon Rees Scully Mansukhani — Chicago news & announcementsfirm_website · G3 · 2026-07-21
- 8 Chicago | Jenner & Block LLPfirm_website · G1 · 2026-07-21
- 9 Chicago | Jenner & Block LLPfirm_website · G2 · 2026-07-21
- 10 Jenner & Block — Chicago news & announcementsfirm_website · G3 · 2026-07-21
- 11 Offices | Taft Lawfirm_website · G1 · 2026-07-21
- 12 About | Chicago | Taft Lawfirm_website · G1 · 2026-07-21
- 13 About | Chicago | Taft Lawfirm_website · G2 · 2026-07-21
- 14 Taft Stettinius & Hollister — Chicago news & announcementsfirm_website · G3 · 2026-07-21
- 15 Offices | Barack Ferrazzanofirm_website · G1 · 2026-07-22
- 16 Barack Ferrazzano — attorney bios & practice pagesfirm_website · G2 · 2026-07-22
- 17 Barack Ferrazzano — Chicago news & announcementsfirm_website · G3 · 2026-07-22
- 18 Our Offices & Locations | Benesch, Friedlander, Coplan & Aronoff LLPfirm_website · G1 · 2026-07-21
- 19 Benesch — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- 20 News USA Highlights Benesch as a Top Workplace in Chicago and Cleveland | Benesch Lawfirm_website · G3 · 2026-07-21
- 21 Locations | Hinshaw & Culbertson LLPfirm_website · G1 · 2026-07-21
- 22 Chicago | Hinshaw & Culbertson LLPfirm_website · G2 · 2026-07-21
- 23 Hinshaw & Culbertson — Chicago news & announcementsfirm_website · G3 · 2026-07-21
- 24 Offices - Swanson, Martin & Bell, LLPfirm_website · G1 · 2026-07-22
- 25 Product Liability - Swanson, Martin & Bell, LLPfirm_website · G2 · 2026-07-22
- 26 Swanson, Martin & Bell — Chicago news & announcementsfirm_website · G3 · 2026-07-22
- 27 Locations | Barnes & Thornburgfirm_website · G1 · 2026-07-21
- 28 Chicago Business Law Firm | Barnes & Thornburgfirm_website · G1 · 2026-07-21
- 29 Chicago Business Law Firm | Barnes & Thornburgfirm_website · G2 · 2026-07-21
- 30 Barnes & Thornburg — Chicago news & announcementsfirm_website · G3 · 2026-07-21
- 31 Chicago: Bartlit Beckfirm_website · G1 · 2026-07-22
- 32 Bartlit Beck Home Pagefirm_website · G1 · 2026-07-22
- 33 Product Liability: Bartlit Beckfirm_website · G2 · 2026-07-22
- 34 Class Action: Bartlit Beckfirm_website · G2 · 2026-07-22
- 35 Bartlit Beck — Chicago news & announcementsfirm_website · G3 · 2026-07-22
- 36 Locations | Jones Dayfirm_website · G1 · 2026-07-21
- 37 Jones Day — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- 38 Jones Day — Chicago news & announcementsfirm_website · G3 · 2026-07-21
- 39 Contact us | LPfirm_website · G1 · 2026-07-22
- 40 Real Estate Group | LPfirm_website · G2 · 2026-07-22
- 41 Corporate Group | LPfirm_website · G2 · 2026-07-22
- 42 Financial Services & Restructuring Group | LPfirm_website · G2 · 2026-07-22
- 43 Levenfeld Pearlstein — Chicago news & announcementsfirm_website · G3 · 2026-07-22
- 44 Chicago - Butler Weihmuller Katz Craig LLPfirm_website · G1 · 2026-07-22
- 45 Contact Us - Butler Weihmuller Katz Craig LLPfirm_website · G1 · 2026-07-22
- 46 Butler Weihmuller — attorney bios & practice pagesfirm_website · G2 · 2026-07-22
- 47 Butler Weihmuller — Chicago news & announcementsfirm_website · G3 · 2026-07-22
- 48 Hagens Berman Locationsfirm_website · G1 · 2026-07-22
- 49 Hagens Berman Chicago Officefirm_website · G2 · 2026-07-22
- 50 Settlements Reached with Agri Stats in Broilers, Turkey, Pork Antitrust Suits Over Price-Fixing Allegations | Hagens Bermanfirm_website · G3 · 2026-07-22
- 51 Heyl Royster Voelker & Allen — Chicago office pagesfirm_website · G1 · 2026-07-22
- 52 Heyl Royster Voelker & Allen — attorney bios & practice pagesfirm_website · G2 · 2026-07-22
- 53 Heyl Royster Voelker & Allen — Chicago news & announcementsfirm_website · G3 · 2026-07-22
- 54 Offices: MoloLamken LLP (ML) Law Firm / Attorneysfirm_website · G1 · 2026-07-22
- 55 Chicago: MoloLamken LLP (ML) Law Firm / Attorneysfirm_website · G1 · 2026-07-22
- 56 MoloLamken — attorney bios & practice pagesfirm_website · G2 · 2026-07-22
- 57 Built for Trials Like This | Lawdragonpress · G3 · 2026-07-22
- 58 Contact Phillips Lytle LLPfirm_website · G1 · 2026-07-21
- 59 Phillips Lytle — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- 60 Phillips Lytle Expands Chicago Office to Fuel Midwest Growth Plansfirm_website · G3 · 2026-07-21
- 61 Plunkett Cooney - Chicago Illinois Officefirm_website · G1 · 2026-07-22
- 62 Plunkett Cooney - Chicago Illinois Officefirm_website · G2 · 2026-07-22
- 63 Plunkett Cooney — Chicago news & announcementsfirm_website · G3 · 2026-07-22
- 64 Offices – Riemer & Braunstein LLPfirm_website · G1 · 2026-07-22
- 65 About Us – Riemer & Braunstein LLPfirm_website · G1 · 2026-07-22
- 66 Commercial Finance – Riemer & Braunstein LLPfirm_website · G2 · 2026-07-22
04 — Questions
About this ranking
Who are the best Commercial Litigation law firms in Chicago?
As of July 2026, Winston & Strawn, Gordon Rees Scully Mansukhani, Jenner & Block, Kirkland & Ellis, Sidley Austin occupy Tier 1 — Market leaders — on Sartori's Chicago Commercial Litigation board. That band is an editorial judgement of commercial-mandate depth, seniority mix and market standing; full placement of all 25 visible firms is on this page.
Is Winston & Strawn the best Commercial Litigation law firm in Chicago?
Winston & Strawn sits in Tier 1 — Market leaders — of Sartori's Chicago Commercial Litigation board as of July 2026, alongside Gordon Rees Scully Mansukhani, Jenner & Block, Kirkland & Ellis, Sidley Austin. Sartori does not name a single #1: the gap between Tier 1 firms is genuinely unmeasurable, and a numeric score would be false precision.
Which firms have the biggest Commercial Litigation benches in Chicago?
By mapped Chicago bench, the largest firms on this board are Kirkland & Ellis (100–199 mapped lawyers each), followed by Winston & Strawn, Gordon Rees Scully Mansukhani, Jenner & Block, Sidley Austin, Taft Stettinius & Hollister (50–99). All counts are bands, never precise headcounts.
Which Commercial Litigation teams are hiring in Chicago?
As of July 2026, no firm on this board shows a public hiring signal in the mapping window. Live Chicago mandates are listed on Sartori's jobs board.
What is a Tier 1 law firm?
In Sartori's rankings, Tier 1 — Market leaders — is an editorial judgement expressed in words, never a score: the firms whose Chicago bench depth, seniority mix and market standing set the reference point for the market. As of July 2026 that is Winston & Strawn, Gordon Rees Scully Mansukhani, Jenner & Block, Kirkland & Ellis, Sidley Austin. Within the tier no firm outranks another.
Which are the best law firms in Chicago overall?
Sartori's overall Chicago board groups 25 firms into editorial tiers; as of July 2026 its Tier 1 is Jenner & Block, Katten Muchin Rosenman, Kirkland & Ellis, Mayer Brown, Sidley Austin, Winston & Strawn, DLA Piper. See /firms/in/chicago/.
This ranking is compiled independently by Sartori from public sources. Tiers are Sartori’s editorial opinion, expressed without numeric scores; firms are named for identification only, no logos are reproduced, and no firm has paid for or approved its placement. No third-party legal-directory band is used as an input. Nothing here is legal advice or a recommendation to instruct counsel.