Cooley LLP
Headquartered in Palo Alto, California, Cooley LLP employs 1,244 lawyers across the United States, according to The Law360 400 (2026).
- Office
- 3175 Hanover Street
Palo Alto, CA 94304 - Website
- cooley.com
- Practice areas
- Corporate, Litigation, Intellectual property, Regulatory, Fund formation, Life sciences
- Size
- 1,244 lawyers in the United StatesFirm-wide count, The Law360 400 (2026)
- Headquarters
- This office
- Traces its history to
- 1920
Palo Alto, California
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About Cooley LLP
Headquartered in Palo Alto, California, Cooley LLP employs 1,244 lawyers across the United States, according to The Law360 400 (2026). Its main areas of practice include corporate, litigation, intellectual property, regulatory and fund formation.
It is one of 21 law firms we list in Palo Alto and one of 1,058 across California. By U.S. lawyer headcount, it ranks number 2 among the firms we list with an office in Palo Alto. Simpson Thatcher is the nearest listed firm, roughly 0.5 miles away.
The firm's website is cooley.com.
Firm profile
Law firm founded in San Francisco in 1920 by Arthur Cooley and Louis Crowley, now headquartered in Palo Alto, California, with offices in 13 U.S. cities and abroad. It is known for technology and life sciences work, initial public offerings and its ties to venture capital.
Cooley LLP traces its history to 1920.
Source: en.wikipedia.org
Areas of practice
- Corporate
- Litigation
- Intellectual property
- Regulatory
- Fund formation
- Life sciences
From the firm's published profile.
Check a Lawyer's License in California
Lawyers who practice in California are licensed by The State Bar of California. Before you hire anyone at Cooley LLP, confirm that the lawyer is licensed and in good standing with its Attorney Search.
Attorney SearchLargest Law Firms in Palo Alto
See all 21- 01Jones Day1,635 U.S. lawyers1755 Embarcadero Road
- 02King & Spalding LLP1,185 U.S. lawyers601 South California Avenue
- 03Paul Hastings LLP1,069 U.S. lawyers
- 04Wilson Sonsini Goodrich & Rosati, P.C.1,062 U.S. lawyersHeadquarters601 South California Avenue
- 05Wilmer Cutler Pickering Hale and Dorr LLP1,060 U.S. lawyers950 Page Mill Road
- 06Haynes and Boone, LLP707 U.S. lawyers525 University Avenue
- 07Brewer Offord & Pedersen LLP2225 West El Camino Real
- 08C. Bruce Hamilton, Attorney at Law260 Sheridan Avenue
Cooley LLP: Questions and Answers
- Where is Cooley LLP located?
- Cooley LLP is located at 3175 Hanover Street, Palo Alto, CA 94304.
- How do I contact Cooley LLP?
- The firm's website is cooley.com.
- What kind of law does Cooley LLP practice?
- Corporate, Litigation, Intellectual property, Regulatory, Fund formation and Life sciences. From the firm's published profile.
- How many lawyers does Cooley LLP have?
- Cooley LLP has 1,244 lawyers in the United States, according to The Law360 400 (2026). That count covers the whole firm, not only its Palo Alto office.
- Where is Cooley LLP headquartered?
- Cooley LLP is headquartered in Palo Alto, California. This office is its headquarters.
- When was Cooley LLP founded?
- Cooley LLP traces its history to 1920, counting the oldest firm it grew from.
- Which law firms are near Cooley LLP?
- The closest firms in the directory are Simpson Thatcher (0.5 miles), Talkov Law (0.5 miles) and Wilmer Cutler Pickering Hale and Dorr LLP (0.5 miles).
- How can I check that a lawyer at Cooley LLP is licensed?
- Lawyers in California are licensed by The State Bar of California. Use its Attorney Search at apps.calbar.ca.gov to confirm a lawyer is licensed and in good standing.
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Listing from © OpenStreetMap contributors, lawyer count from The Law360 400 (2026), last checked October 2026. LawFirmWebAgency is not affiliated with this firm, and a listing is not an endorsement or a measure of quality.
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