The following major corporations and businesses are among Parker, Nelson & Associates’ past and/or current clients:
- American National Property and Casualty Company
- American Safety
- California Casualty Management Company
- California State Automobile Association
- Century Theaters
- CG&B Enterprises
- Cobblestone Construction
- Colorado Casualty Management Company
- Economic Opportunity Board of Clark County
- Federated Insurance
- Financial Pacific
- KCEP Radio Station
- Grand Canyon Skywalk Development
- Great American Insurance
- Great West Casualty Company
- The Hartford Insurance Company
- Helix Inc
- Housing Authority of the City of North Las Vegas
- Housing Ventures Inc
- Housing Authority City of Las Vegas
- Horace Mann Insurance Company
- Nevada Contractors Insurance Company (NCIC)
- Pacific Specialty
- Palmetto Construction
- Red Shield Insurance
- Residential Warranty Corporation
- Richardson Construction
- R.P. Weddell, Inc
- ROBCO Electric
- Royal & Sun Alliance
- Safeco
- Southern Nevada Regional Housing Authority
- United Services Automobile Association
- University Medical Center
- Wesley Corporation
- Wells Fargo Bank, NA
- Zurich Insurance and Zurich Commercial Insurance
- Zurich Specialties