Coronavirus Questions? Learn more in our COVID-19 Business Resource Hub

Imagine… Picking up the phone to speak with a friendly,
helpful expert knowledgeable about your business.

Complete Employer, Payroll,
Human Resource, Benefit Administration, and Retirement Planning.

Small Businesses

Our multi-disciplinary expertise and emphasis on accountability unite to minimize your risk exposure. We maintain internal policies and procedures, train, and continually invest in our staff’s education to bring you with the expertise you need – and ensure it is always delivered in a friendly and helpful manner from our team.


Whether your business has been around for years or is just starting out, we know it can be tricky to manage all the different moving parts. That’s why we’re here to help you with your payroll and HR functions, provide valuable planning and business insights, and keep you up to date with new legislation and compliance requirements!


With a long history of working with nonprofits and a passion for serving our community, we understand the unique staffing, recordkeeping, and tax challenges facing your organization, and offer solutions to help you spend less time worrying about payroll and HR, and more time focusing on the causes you care about.

Learn how great we are to work with!

With our powerful platform, you can connect payroll, HR management, and employee self-service all in one place. But don’t take our word for it!

Hear from Marilyn Sparks, Board Member and past Chair of the San Dimas Chamber of Commerce, to learn more about what it’s like working with SDP.

Meet a Few of Our Customers

Brethren Hillcrest Homes Logo
Howard Building Corporation Logo
Grocery Outlet Logo