Sidley Austin LLP vs. Cooley LLP
Side-by-side on the metrics that actually drive the student's call. Sources: Vault 2027, AmLaw 200 FY2025, and reported Chambers records from the years shown.
Swipe sideways to see every firm, or focus the comparison and use the arrow keys.
Est. 1866 · Chicago
Sidley Austin LLP is a 2,000-plus-attorney global firm, Vault #11 / AmLaw #6, founded in Chicago, IL. Jurisdiction-specific Chambers rankings include Band 1 in Accountant and Auditor Liability, Banking & Finance, and Capital Markets: Securitization: ABS.
Est. 1920
Cooley LLP is a 1,000-plus-attorney firm, Vault #22 / AmLaw #24. Jurisdiction-specific Chambers rankings include Band 1 in Artificial Intelligence, Capital Markets, and Capital Markets: Debt & Equity. Operates from 19 offices worldwide.
- Vault rank
- #11
- AmLaw rank
- #6
- Reported Chambers Band 1 records
- 29 records
- Vault rank
- #22
- AmLaw rank
- #24
- Reported Chambers Band 1 records
- 24 records
- First-year comp
- $225,000+
- Profits per partner
- $5.97M
- Firm revenue
- $3.74B
- Revenue per lawyer
- $1.83M
- First-year comp
- $255,000+
- Profits per partner
- $4.58M
- Firm revenue
- $2.37B
- Revenue per lawyer
- $1.82M
- Billable target
- 2,000
- Partnership track
- -
- US associates per partner
- 1.9:1
- Firm size (rounded to 50)
- ~2,300
- Offices
- 20
- Billable target
- 1,950
- Partnership track
- -
- US associates per partner
- -
- Firm size (rounded to 50)
- ~1,300
- Offices
- 19
- Offer rate
- -
- Class size
- 198 (year not confirmed)
- How associates get work
- Free market
- Specific practice area
- Case by Case
- Offer rate
- 98%
- Class size
- 100 (year not confirmed)
- How associates get work
- -
- Specific practice area
- Case by Case
Shared results are listed once. Green marks only a lower reported Chambers band for the same exact practice, market and year. Records with a missing year or market are not compared. Historical records are retained; individual ranking verification status is not available.
Shared rankings
Rank differences
Firm-only and additional rankings remain available on each firm profile so missing coverage is not mistaken for a head-to-head loss.
Data sources: Vault 2027, AmLaw 200 FY2025, and reported Chambers records from the years shown. Chambers record counts can span years and reporting coverage varies; missing years or markets are not compared. Current Chambers bands were checked against each firm’s Chambers profile on Sep 26, 2026; where Chambers splits a table, every Elite firm ranks above every Highly Regarded firm. Missing values shown as “-”.
More head-to-head comparisons
- Cravath, Swaine & Moore vs. Sidley Austin
- Cravath, Swaine & Moore vs. Cooley
- Wachtell, Lipton, Rosen & Katz vs. Sidley Austin
- Wachtell, Lipton, Rosen & Katz vs. Cooley
- Skadden, Arps, Slate, Meagher & Flom vs. Sidley Austin
- Skadden, Arps, Slate, Meagher & Flom vs. Cooley
- Latham & Watkins vs. Sidley Austin
- Latham & Watkins vs. Cooley
- Sullivan & Cromwell vs. Sidley Austin
- Sullivan & Cromwell vs. Cooley
- Kirkland & Ellis vs. Sidley Austin
- Kirkland & Ellis vs. Cooley
Firm data comes from each firm’s own publications, Chambers USA and Vault; see Sidley Austin and Cooley for sources and dates.