William Sykes

Partner - Trial Lawyer at Claggett & Sykes Trial Lawyers
Las Vegas, NV20 years experienceAdmitted 2005

About William Sykes

William Sykes is a founding Partner and Trial Lawyer at Claggett & Sykes Trial Lawyers, specializing in catastrophic injury and wrongful death cases. He has secured multiple seven- and eight-figure settlements throughout his career.

Sykes earned his Juris Doctor from the UNLV William S. Boyd School of Law in 2005 and his Bachelor of Science in Business Administration cum laude with University Honors from the University of Nevada Las Vegas in 2002. He is admitted to the State Bar of Nevada, the District of Columbia Bar, and the U.S. District Court for the District of Nevada.

Following two years as a judicial law clerk after law school, Sykes joined Claggett & Associates in 2008 and later co-founded Claggett & Sykes. His honors include AV Preeminent (Martindale-Hubbell, 2013), Mountain States Super Lawyers (2019-2021), the National Trial Lawyers Top 40 Under 40 Civil Plaintiff Lawyers, and the NJA Badger Award (2021). He serves on the Nevada Justice Association Board of Governors and founded its Diversity, Equity & Inclusion committee.

Proven verdicts and settlements at Claggett & Sykes Trial Lawyers

These results are credited to Claggett & Sykes Trial Lawyers. A result appears under an attorney's own name only when a published source names them as counsel on the case.

A Utah judge entered a $951 million default judgment against Steward Health Care after newly trained nurses, an excessive Pitocin drip, and a delayed C-section at Jordan Valley Medical Center left a newborn permanently brain damaged.

Third District Court, Salt Lake City, Utah · 2025Medical MalpracticeRead the full story →

A Rio Arriba County jury held Acadia Healthcare and its New Mexico foster care subsidiaries responsible for placing an 8-year-old girl with a foster father who raped her repeatedly, returning one of the largest single-plaintiff sexual abuse verdicts in the country.

Rio Arriba County (First Judicial District Court), New Mexico · 2023Sexual AbuseRead the full story →

A 20-year-old painter suffered a traumatic brain injury in a 2021 ladder fall in Utah. A Denver jury found his workers' compensation carrier, NorGUARD Insurance, knowingly and unreasonably delayed and denied his care, including inpatient rehabilitation. It awarded $145.26 million, made up of $85.26 million in compensatory and $60 million in punitive damages.

Denver District Court, Denver, Colorado · 2025Workplace InjuryRead the full story →

A retrial jury in Utah's Fourth District Court awarded $81 million against Beacon Roofing Supply after one of its trucks struck and killed a 12-year-old boy who was crossing legally in a marked crosswalk.

Fourth District Court, Utah · 2026Truck AccidentsRead the full story →
$47 millionVerdictTop 20 in Nevada · #15

A Clark County jury found Amy Geiler's losses worth just under $47 million after hospital doctors raised her dangerously low blood sodium too quickly, causing permanent brainstem damage and locked-in syndrome.

Clark County District Court, Las Vegas, NV · 2023Medical MalpracticeRead the full story →

Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.

Practice areas

Education

University of Nevada Las Vegas
Undergraduate

Bar admissions & credentials

State Bar of Nevada, admitted 2005
State Bar of District of Columbia
State Bar of U.S. District Court, District of Nevada
Nevada Justice Association - Board of Governors
Academy of Truck Accident Attorneys
Citizens for Justice - Board of Governors
Clark County Bar Association - Diversity & Inclusion Committee
Las Vegas National Bar Association
Latino Bar Association

Awards & recognition

AV Preeminent (Martindale-Hubbell, 2013)
AVVO 10.0 Rating
National Trial Lawyers Top 40 Under 40 Civil Plaintiff Lawyers
Mountain States Super Lawyers (2019-2021)
Mountain States Super Lawyers Rising Stars (2015-2016)
NJA Badger Award (2021)

Other attorneys at Claggett & Sykes Trial Lawyers

View firm →

Proven verdicts and settlements from other Las Vegas firms

Eglet Law
Eglet Law
$3.8 billion · Real Water Poisoning: $3.8 Billion Verdict in Alkaline Water Liver Failure Cases
GGRM Law Firm
GGRM Law Firm
Nevada Supreme Court Rules Overtime Counts as 'Full Wages' in Workers Comp Reopening Fight
Ladah Law Firm
Ladah Law Firm
$15 Million Wrongful Death Verdict for Family of Man Killed by Speeding Driver in Las Vegas
Richard Harris Personal Injury Law Firm
Richard Harris Personal Injury Law Firm
$38.6 million · A Soldier Shot in an Apartment Parking Lot, and a $38.6 Million Negligent Security Verdict
Dimopoulos Injury Law
Dimopoulos Injury Law
Las Vegas Woman Develops Three Brain Tumors After Decades of Depo-Provera Injections

Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.