›Direct answer & research summary
Sartori & Partners applies a weighted methodology combining the opinions of practising lawyers — more than 10,000 lawyers interviewed — with monthly market surveys. As of July 2026, the best Corporate & M&A law firms in Shanghai are: JunHe, King & Wood Mallesons, Cooley Godward, Han Kun Law Offices, CMS, K&L Gates.
01 — The ranking
The Shanghai Corporate & M&A board
A tier on this Shanghai Corporate & M&A board names relative firm standing in words. Placement speaks to public and private M&A, joint ventures and corporate advisory presence; order inside each band carries no hierarchy and is not a score.
The top editorial band for the best Corporate & M&A law firms in Shanghai: firms that set the tone for M&A and corporate advisory at scale in Shanghai. Within-tier sequence rotates and is not a ranking.
Highly active on the Shanghai Corporate & M&A board means consistent transaction presence and peer recognition short of the leader set. No numeric score is assigned.
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 Shanghai?
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
JunHe
JunHe is placed in market leaders for Corporate & M&A in Shanghai. Public mapping (banded): 25–49 attorneys, major local depth, ≈30 partners · <5 counsel · <5+ 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
- Shanghai Officefirm_website · G1 · 2026-07-21
- JunHe — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- JunHe — Shanghai news & announcementsfirm_website · 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
5–9 firms earn a tier in Shanghai 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 Shanghai Officefirm_website · G1 · 2026-07-21
- 2 JunHe — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- 3 JunHe — Shanghai news & announcementsfirm_website · G3 · 2026-07-21
- 4 Locationsfirm_website · G1 · 2026-07-21
- 5 办公机构 - 金杜律师事务所firm_website · G1 · 2026-07-21
- 6 办公机构 - 金杜律师事务所firm_website · G1 · 2026-07-21
- 7 King & Wood Mallesons — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- 8 King & Wood Mallesons — Shanghai news & announcementsfirm_website · G3 · 2026-07-21
- 9 Contact Usfirm_website · G1 · 2026-07-21
- 10 Han Kun Law Offices — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- 11 第十四届“汉坤青年法律奖学金”复试暨颁奖典礼圆满落幕firm_website · G3 · 2026-07-21
- 12 Han Kun advises Shanghai Wankexin Biotechnology Partnership (Limited Partnership) on acquiring control of Kanghua Biologicalfirm_website · G3 · 2026-07-21
04 — Questions
About this ranking
Who are the best Corporate & M&A law firms in Shanghai?
Who leads Corporate & M&A in Shanghai? As of July 2026, Market leaders are JunHe, King & Wood Mallesons. Sartori does not name a single number-one firm; the gap inside Tier 1 is treated as unmeasurable, and the wider board of 6 firms uses worded tiers only.
Is JunHe the best Corporate & M&A law firm in Shanghai?
JunHe sits in Tier 1 — Market leaders — of Sartori's Shanghai Corporate & M&A board as of July 2026, alongside King & Wood Mallesons. 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 Corporate & M&A benches in Shanghai?
By mapped Shanghai bench, the largest firms on this board are Han Kun Law Offices (100–199 mapped lawyers each), followed by King & Wood Mallesons (50–99). All counts are bands, never precise headcounts.
Which Corporate & M&A teams are hiring in Shanghai?
As of July 2026, no firm on this board shows a public hiring signal in the mapping window. Live Shanghai 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 Shanghai bench depth, seniority mix and market standing set the reference point for the market. As of July 2026 that is JunHe, King & Wood Mallesons. Within the tier no firm outranks another.
Which are the best law firms in Shanghai overall?
Sartori's overall Shanghai board groups 15 firms into editorial tiers; as of July 2026 its Tier 1 is JunHe, King & Wood Mallesons. See /firms/in/shanghai/.
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.