›Direct answer & research summary
Under Sartori & Partners' weighted methodology, peer opinion from more than 10,000 lawyers interviewed is combined with monthly market surveys. As of July 2026, the best law firms in Perth map to: Ashurst, HSF Kramer, Mallesons (Australia/Singapore), Fragomen Del Rey Bernsen & Loewy, Kennedys, Pinsent Masons.
01 — The ranking
The Perth board
This Perth ranking groups 6 firms into worded tiers for Western Australia's capital market. Placement reflects bench depth, seniority mix and market standing as of July 2026; within a tier the monthly rotation carries no hierarchy.
This band holds the firms whose Perth presence defines the market standard across corporate, disputes and advisory work. Labels are editorial words, not scores; monthly order carries no meaning.
Highly active firms show sustained Perth mandate flow and visible bench strength just below the market-leader band. Order inside the tier is non-hierarchical.
Notable entries flag real but lighter Perth footprints. They are not a lower rank of the bands above; they document presence the board would otherwise omit.
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 Perth?
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
Ashurst
Ashurst is placed in market leaders for Perth. Public mapping (banded): 25–49 attorneys, major local depth, ≈20 partners · 10 counsel · 10+ 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
- Perth | Ashurst Perkins Coiepress · G1 · 2026-07-21
- Ashurst — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- Ashurst — Perth 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 Perth 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 Perth | Ashurst Perkins Coiepress · G1 · 2026-07-21
- 2 Ashurst — attorney bios & practice pagesfirm_website · G2 · 2026-07-21
- 3 Ashurst — Perth news & announcementsfirm_website · G3 · 2026-07-21
- 4 Top Law Firm in Australia: Find Our Mallesons Offices (formerly KWM)firm_website · G1 · 2026-07-21
- 5 Experienced Law Firm in Perth | Leading Lawyers & Solicitors | Mallesons (formerly KWM)firm_website · G1 · 2026-07-21
- 6 Experienced Law Firm in Perth | Leading Lawyers & Solicitors | Mallesons (formerly KWM)firm_website · G2 · 2026-07-21
- 7 Mallesons (Australia/Singapore) — Perth news & announcementsfirm_website · G3 · 2026-07-21
04 — Questions
About this ranking
Who are the best law firms in Perth?
As of July 2026, the Tier 1 — Market leaders — of Sartori's Perth ranking are Ashurst, HSF Kramer. The full board groups 6 firms into editorial tiers expressed in words rather than scores; within a tier order rotates monthly and carries no meaning.
Is Ashurst the best law firm in Perth?
Ashurst sits in Tier 1 — Market leaders — of Sartori's Perth board as of July 2026, alongside HSF Kramer. 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 are the biggest law firms in Perth?
By mapped Perth bench, the largest firms on this board are HSF Kramer (50–99 mapped lawyers each), followed by Ashurst, Mallesons (Australia/Singapore) (25–49). All counts are bands, never precise headcounts.
Which law firms are hiring in Perth right now?
As of July 2026, no firm on this board shows a public hiring signal in the mapping window. Live Perth 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 Perth bench depth, seniority mix and market standing set the reference point for the market. As of July 2026 that is Ashurst, HSF Kramer. Within the tier no firm outranks another.
Which are the best law firms for corporate & m&a in Perth?
Sartori publishes a dedicated Corporate & M&A board for Perth: as of July 2026 its Tier 1 is Squire Patton Boggs. See the full ranking at /firms/corporate/in/perth/.
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.