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Workers' Compensation Risk Management

About Us

ESM upholds its unwavering commitment to instilling safety as a key organizational value which reduces an employer’s risk and cost associated with Workers’ Compensation. There are many changes ahead in the California Workers’ Compensation landscape. We at ESM promise to remain vigilant and provide direction to our customers so that they can manage their risks accordingly. 

Our Core Values of believing in People, leveraging Technology, having a superior Code of Ethics, Transparency, Education and Trust, are rooted in the services and personality of our entire team.


Sharon Poston, ARM

Sharon Poston, ARM

Sharon Poston is the co-founder and President of ESM Solutions. Sharon has more than 35 years of Workers’ Compensation claims management experience.  She has a versatile background having worked for insurance carriers, Third Party Administrators, and insurance brokers before starting her own consulting business in 1996. She provides a global risk management approach to assist employers with managing their Workers’ Compensation risk. Sharon grew up in Missouri and has a Missouri Lifetime Teaching Certificate. She continues to educate employers and insurance brokers inclaims management policies and requirements. She has designations of Associate in Risk Management (ARM) and Self Insurance Certificate.


Anthony Poston, ARM, AIM

Anthony co-founded ESM with the vision of supporting California employers with analyzing their operational challenges and developing a strategic plan that focused on injury prevention and Worker’s Compensation cost containment. At ESM he has obtained his Associate in Risk Management (ARM), Associate in Management (AIM) and his Fire & Casualty Broker-Agent License # 0H15950. Prior to starting ESM, Anthony was a Risk Analyst at Charles Schwab & Co. He spent 6 years analyzing compliance trends and implementing PATRIOT Act procedures to ensure compliance with Government regulations. While at Schwab he obtained his Series 7, 9/10 & 63.  Anthony graduated from San Francisco State University with a degree in International Business and Finance and played soccer as the Gators goalkeeper. 

Board Members

David Mysona Picture.jpg

David Mysona
Board Member | Investor

David is the CEO and co-founder of Blackstone Technology Group. He is also on the Board of Fremont Bank. David has more than 30 years of IT experience in technical solutions and implementation. He has also held  managerial positions at Pricewaterhouse, Pacific Gas and Electric and Lockheed Missiles & Space.