Derek Hess

Duffy Kruspodin, LLP is a Southern California CPA and advisory firm built on long-standing relationships, dependable guidance, and deep financial and business expertise. With more than 35 years in practice and offices in Beverly Hills, Woodland Hills, Irvine, and San Diego, we serve business owners, finance leaders, nonprofit organizations, and families across California and beyond. Our firm provides integrated tax strategy and compliance, audit and assurance, outsourced accounting and fractional CFO services, business advisory, HR support, IT solutions, marketing advisory, and wealth planning. We work as one coordinated team so clients can rely on consistent insight and experienced support across every stage of growth and transition. At Duffy Kruspodin, we are more than accountants. We are trusted partners who listen, follow through, and stay engaged year-round. Our more than 200 professionals bring technical depth, industry specialization, and a people-first approach to every engagement. Clients turn to us for responsive service, proactive planning, and practical guidance that supports informed decision-making. Whether preparing for expansion, succession, transaction activity, or long-term wealth planning, we help organizations and families move forward with confidence and a steady financial foundation. For more than three decades, we have remained committed to integrity, professionalism, and the kind of partnership that stands the test of time.