Our Health Insurance and Benefits Advising Story

We started ESIS to serve Sacramento and Northern California mid-size and large employers with 25-500 employees that wanted a truly customized benefit package to fit their unique group health insurance plan needs, backed by ongoing service and consultation by dedicated benefits experts.

Knowing our market inside and out and having strong relationships with a wide range of national and regional group health insurance plans gives you a well-rounded tailored benefit package for your team.

You will notice a difference in our services compared to others. When you call us, you don’t get a generic call center, your calls and your employees’ calls are taken personally by our advisors and professional account management staff. If you’re looking for health insurance for small businesses in Sacramento to Napa, ESIS is the name you can trust.

Headquartered in Northern California, we think globally but act locally, with personal services designed specifically for each individual client. ESIS Inc. combines an experienced team with cutting-edge products to provide exceptional value to our clients.

Team Bios

ESIS Leadership Team


Shannon Zajec, CEBS

Sr. Benefits Advisor and Managing Partner

20+ Years of Employee Benefits Advisory Experience

Shannon is the founding partner of Employers Select Insurance Services and provides employee benefits advisory services for clients throughout the region. Shannon teaches groups throughout the state on plan design, wellness program strategies, and use of technology in insurance and employee benefits. Shannon holds a B.S. degree from Sacramento State University with an insurance concentration and a CEBS (Certified Employee Benefits Specialist) designation from the Wharton School of Business-University of Pennsylvania.Shannon currently serves as VP of Membership for SAHRA and is past president for SAHU. Shannon enjoys cooking, golf and skiing.


Mark Zajec

Sr. Benefits Advisor and COO

20+ Years of Benefits Advisory Experience

As Benefits Advisor, Mark specializes in Life Insurance, Disability and Long Term Care for executives and business owners. As COO, Mark manages operations and finances for ESIS. Mark’s diverse management and consulting experience includes working with large companies such as HP, Blue Shield and New York Life as well as start-up technology companies. Mark’s leadership qualities and attention to detail make him a valuable asset to our team. Mark holds a degree from Sacramento State University and enjoys golf, skiing and traveling.


Lyria Beck

Sr. Benefits Analyst

As an Associate Benefits Advisor, Lyria helps guide small and large companies through the world of Employee Benefits. Benefits do not have to be complicated. With the individual company’s strategic plan in mind, Lyria, along with a powerful team, can help employers reach their goals. Lyria is continually learning to bring our clients the most up-to-date information on benefit trends, ACA Compliance, cost-reducing measures and ways benefits can help employee retention.

Lyria graduated from the University of Arizona with a BS in Management Information Systems.  Previously with CGI, a nationwide consulting firm where she helped implement a new pension system for the California State Teachers Retirement System (CalSTRS). Lyria enjoys baking, home decorating, and practicing yoga in her spare time.


Amanda McCarthy

Sr. Account Manager and Acct. Mgmt. Lead

13 Years of Benefits Experience Including Account Management and Human Resources

Amanda works with ESIS clients on a daily basis and specializes in renewal management, carrier negotiations and claims analysis. Her attention to detail makes our clients lives easier and her winning attitude makes her a vital part of our team. In her prior career, Amanda worked as a recruiter for a large California employer. Amanda has a B.A. from Santa Clara University and is a Certified Account Manager through the National Association of Health Underwriters. Amanda enjoys reading, art, running and golf.


Tina Pham

Sr. Account Manager & COBRA Administration Lead

15 Years of Experience in Client Services and Support

Tina was a great addition to our Account Management team in 2016. She enjoys helping employers and employees with technical issues of claims administration, COBRA and eligibility administration. Tina has a B.A. in Communications from Texas Tech University and is training to be a Certified Account Manager through the National Association of Health Underwriters. Tina enjoys spending time with family and friends, skiing and traveling.



At ESIS we believe in the importance of an individual’s wellness, including caring for the mind, body and service to others through involvement in our community. We contributed time and resources to the following deserving organizations:

  • Keaton Raphael Memorial
  • Placer SPCA
  • River Oaks Center for Children
  • Placer Foodbank
  • Girl Scouts of America
  • United Advocates for Children and Families
  • Rotary International

Our roster of clients continues to grow. Businesses looking for group health insurance in Roseville, CA to the Bay Area can turn to the team of dedicated experts from ESIS. Apart from Sacramento and Roseville, CA area, we offer our services to those in the following counties:

  • Rocklin
  • Fairfield, CA
  • Vacaville, CA
  • Napa, CA
  • Davis, CA
  • Folsom, CA
  • Elk Grove, CA
  • Grass Valley, CA
  • San Francisco Bay Area, CA

We also serve Nevada cities. Any city east to Reno, west to San Francisco, north to Chico and south to Fresno.

Find a truly customized benefit package for your employees and contact us today!