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Home → Law firm → California → Los Angeles
Attorney Portrait

Simpson Thacher & Bartlett LLP

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Legal services in Los Angeles, CA

Los Angeles, California
Law firm
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Contact Information

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About This Office

Simpson Thacher & Bartlett LLP is a law firm in Los Angeles, California. Public California State Bar records list 60 attorney profiles using this office address. 60 of these profiles list an active license. Their recorded admission years range from 1992 to 2026. Profiles linked to this address self-report practice areas including Corporate Law, Energy, Finance, Mergers & Acquisitions, Taxation, and Banking Law. These profiles report languages spoken by attorneys including Hungarian, Spanish, Mandarin, Persian, Farsi, and Korean. These profiles report California Lawyers Association membership in Taxation.

Practice Areas Reported by Attorneys at This Office

These areas come from individual attorney profiles and may not describe every service offered by the firm.

Business Law Attorney

Client Reviews

California attorney registration

Record matched to the official California attorney registry

Adam J. Coulson

Active

Bar #323407 · Admitted 2018

Alec Peter Gutman

Active

Bar #342028 · Admitted 2021

Ana Paula Xavier Siqueira

Active

Bar #367211 · Admitted 2025

Last verified September 12, 2026.

Source: California public attorney records. No affiliation or endorsement.

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