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CastleRock Agent Services is driven by one thing, helping people. Your success is our success.
We are committed to establishing relationships based on integrity and trust. We are in business to provide agents and clients with the highest quality products and services that deliver impactful solutions while supporting them the whole way through.
We specialize in programs that help Self-Funded / Level-Funded employer groups of ALL sizes significantly reduce their prescription drug spend without eliminating access to care.
Through our long-standing relationships with key, innovative providers, we can help you dramatically reduce your client’s risk and spend on high-cost specialty, maintenance, and orphan medications, in addition to drug therapies billed through the medical plan which are having a severely crippling financial impact.
Our goal is to help you understand your options, answer questions, and help make a choice that best suits your risk management needs. We’re continuously responding to the needs of our clients, build upon that foundation, and evolve as the healthcare landscape continues to change.



Nathan Berg has been in the employee benefits field since 2005, working directly with
both employer groups and agents in prescription drug plans, fully insured, level-funded
and self-funded health insurance plans and health sharing solutions.
“The best way to predict the future is to create it”
–Nathan Berg, COO CastleRock Agent Services, LLC
Todd Williams has worked in the Agent Marketing and Sales vertical for over 13 years,
taking a high touch approach in supporting agents and their clients, connecting them to
carriers and service providers that provide valuable long-lasting results.
“People First is our focus, bringing personal touch and support to brokers and putting their client’s needs at the forefront of everything we do.”
–Todd Williams, CEO CastleRock Agent Services, LLC








At CastleRock, we believe the free market has brought forth advanced solutions for approaching group health insurance coverage. It starts with finding solutions that differentiate you in the marketplace and solve critical challenges for your clients, without reducing access to care for their employees.
Our combined experience in growing and supporting health agents and brokers around the U.S. helps provide your clients with real solutions to the skyrocketing cost of health care..
Through our long-standing relationships with key, innovative providers, you can dramatically reduce your client’s risk and spend on high-cost specialty, maintenance, and orphan medications in addition, to drug therapies billed through the medical plan which are having a severely crippling financial impact.
We specialize in helping self-funded employer groups of ALL sizes significantly reduce prescription drug spend without eliminating access to care. We are committed to delivering the very best solutions in the market for brokers to share with their clients. Our goal is simple – support the agent with solutions that substantially reduce risk and spend for your clients and prospects.








As a true MGA, we work tirelessly to earn your trust without reducing your compensation.
If you are a health broker looking to improve the position of your existing clients or are prospecting for new clients and want to stand out from your competition, we want to partner with you.
We ensure best insurance services
for our clients.

–Todd Williams, CEO CastleRock Agent Services, LLC
“People First is our focus, bringing personal touch and support to brokers and putting their client’s needs at the forefront of everything we do.”
