ABOUT MISTRETTA PRIVATE ADVISORY
Built around relationships. Guided by perspective.
Many of our clients know Owen through his work supporting their investment accounts with Mistretta Private Client Advisory. At Mistretta Private Advisory, Owen serves as an Operations Associate, helping coordinate client service, facilitate communication, and support the administrative and operational needs of the firm’s advisory relationships.
Owen joined the Mistretta Private Advisory team after earning his degree in Economics from the University of Hawaiʻi at Mānoa in 2025. His role allows him to work closely with clients and the advisory team while developing a broader understanding of the tax, financial, and operational considerations that often intersect within a client’s financial life.
Outside of the office, Owen enjoys spending time outdoors, particularly hiking, surfing, fishing, and exploring new places.
Michael Mistretta is the founder of Mistretta Private Advisory, bringing more than two decades of experience advising individuals, families, business owners, and closely held enterprises on complex tax and financial matters.
Before beginning his career in public accounting, Michael gained experience in both banking and the California Legislature—an early foundation that helped shape his broad perspective on financial, business, and regulatory matters.
His approach extends beyond traditional tax compliance, focusing on the broader financial picture and helping clients navigate the intersection of tax planning, business decisions, estate considerations, and long-term family objectives. Michael works closely with clients and their other professional advisors to provide thoughtful, coordinated guidance built around each client's unique circumstances.
Michael is a Certified Public Accountant licensed in California. Away from the office, he has a passion for travel and is always looking for the next adventure or new experience. He enjoys sports, music and reading, but values most the laughter and memories made with family and friends.
Zach brings experience in both boutique public accounting and large-firm audit to his role at Mistretta Private Advisory. His professional background includes audit experience with Deloitte as well as work in smaller public accounting environments, providing him with a combination of technical discipline and the personalized perspective that comes from working closely with clients and their businesses.
At Mistretta Private Advisory, Zach works across tax compliance, accounting, and advisory engagements involving individuals, closely held businesses, trusts, and other entities. He approaches his work with an emphasis on accuracy, thoughtful analysis, and understanding the broader financial picture behind the numbers.
Zach earned his B.A. in Business Management Economics from the University of California, Santa Cruz and completed additional post-baccalaureate accounting coursework at Foothill College. He is currently completing the final requirements toward becoming a Certified Public Accountant.
Based in the Bay Area, Zach enjoys keeping life simple and making the most of his time outside the office with family, friends, and his dogs.
Senior Advisor
Bob Mistretta brings more than five decades of experience in public accounting and an enduring commitment to understanding the complete financial picture of the clients he serves.
Bob began his career in 1975 with Coopers & Lybrand and later joined S.J. Gallina & Co. before founding Mistretta Associates in 1984. A California Certified Public Accountant since 1978, he has spent his career advising individuals, families and closely held businesses, with extensive experience serving professional service firms and construction contractors.
At the heart of Bob's approach is a genuine desire to understand each client's entire financial universe. He has a particular ability to see how the individual pieces fit together—business, tax, family and long-term financial considerations—and is known for the care he brings to client relationships and his relentless determination when tackling a challenge on a client's behalf.
A graduate of Union College in New York, Bob continued his graduate studies at the University of California, Berkeley. For more than two decades, Bob and his son, Michael, have worked alongside one another serving clients and their families—a relationship and philosophy of service that continues today at Mistretta Private Advisory.
Away from the office, Bob enjoys traveling, sports, good wine and, most of all, time spent with family and friends.
We value long-term relationships built on trust, discretion, and thoughtful stewardship, and we appreciate the opportunity to serve in that capacity.
Who We Serve
Mistretta Private Advisory works with individuals, families, and closely held enterprises whose financial lives have evolved beyond transactional tax compliance alone.
Clients are typically seeking a long-term advisory relationship centered around coordination, strategic planning, and continuity across multiple areas of their financial affairs.
Founder & Operator Families
Entrepreneurs and closely held business owners navigating growth, liquidity decisions, succession considerations, and increasing structural complexity.
Multi-Entity Business Owners
Clients managing multiple operating entities, partnerships, investment holdings, or real estate structures requiring coordinated tax and operational oversight.
Real Estate Investors
Investors and families with active or legacy real estate holdings seeking integrated guidancesurrounding entity structuring, cash flow, transactions, and long-term planning.
Professionals with Growing Complexity
Professionals and executives whose expanding income, investments, business activities, or family considerations require increasingly proactive coordination.
Families Seeking Coordinated Advisory Relationships
Clients who value having a central advisory relationship capable of coordinating across tax, investment, estate, and business matters alongside outside legal and professional counsel.
Integrated Private Advisory
Sophisticated financial planning rarely occurs within a single discipline.
Tax strategy influences investment decisions. Liquidity planning affects business opportunities. Estate structures shape long-term family outcomes. Transaction decisions may carry multi-year implications extending far beyond the immediate event itself.
Mistretta Private Advisory operates through an integrated advisory model designed to improvevisibility across these interconnected areas.
Rather than approaching planning through isolated engagements, the firm emphasizes coordinated decision-making across:
• Tax Advisory & Compliance
• Strategic Tax Planning
• Investment Coordination & Cash Management
• Trust & Estate Coordination
• Transaction & Opportunity Analysis
• Family Enterprise Advisory
• Multi-Generational Planning
The objective is to create a centralized advisory relationship capable of identifying opportunities, reducing fragmentation, and supporting thoughtful long-term decision-making as client needs evolve over time.
Relationship Structure
Mistretta Private Advisory is intentionally structured around a limited number of long-term client relationships.
The firm’s advisory model is designed to provide continuity, accessibility, and proactive coordination across multiple areas of a client’s financial life rather than functioning solely as a transactional tax or investment engagement.
Clients generally maintain an ongoing relationship with the firm spanning tax advisory, investment coordination, strategic planning, and related advisory matters as their needs evolve over time.
Selective Engagement Model
The firm is selective in accepting new client relationships and prioritizes engagements where coordinated advisory work can provide meaningful long-term value.
Direct Advisor Access
Clients maintain direct access to senior-level advisory guidance and benefit from consistent continuity of relationship over time.
Proactive Coordination
Planning discussions are approached proactively throughout the year rather than being limited tofiling deadlines or isolated transactions.
Integrated Advisory Perspective
Recommendations are evaluated within the broader context of tax implications, liquidity considerations, investment structure, family objectives, and operational realities.
Coordination with Outside Professionals
The firm frequently collaborates with outside legal counsel, insurance professionals, lenders, trustees, and other advisors in order to support cohesive planning and implementation.
Long-Term Orientation
Advisory relationships are approached with a long-term perspective emphasizing continuity, thoughtful decision-making, and disciplined execution over time.
The firm’s structure is intentionally designed to preserve responsiveness, depth of engagement, and high-touch client service standards across a concentrated client base.
2026
A NEW ADVISORY MODEL
Mistretta Private Advisory is established with a focus on integrated tax and strategic advisory.
OUR ROOTS
RELATIONSHIPS FIRST
Built around direct relationships, accessibility, and a deep understanding of each client's circumstances.
OUR
METHOD
INTEGRATED ADVISORY
Bringing tax insight and strategic planning together to provide a broader perspective on important decisions.
OUR FOCUS
COMPLEXITY WITH CLARITY
Helping individuals, families, and businesses navigate complex tax and financial considerations with greater clarity.
OUR VALUES
LONG-TERM THINKING
Providing proactive guidance designed to evolve alongside our clients and their changing circumstances.
OUR FUTURE
WHAT COMES NEXT
Continuing to build lasting advisory relationships and provide thoughtful perspective for the decisions ahead.