Business Details
Trusted Accounting & Advisory Services in New York
PKF O'Connor Davies has built a distinguished reputation as a relationship-centered accounting and advisory firm since 1891. Our deep expertise spans audits, tax services, advisory solutions, and cybersecurity, supported by a team of seasoned professionals with regional connections and global reach through the PKF International network. Recognized as one of the top 25 firms in Accounting Today's 2025 Top 100 Firms list, we prioritize client satisfaction through proactive service, industry-specific knowledge, and a commitment to delivering value. Our multidisciplinary teams address complex challenges in tax compliance, business strategy, and cybersecurity, serving clients across sectors including not-for-profits, private equity, and technology.With 19 regional offices and a focus on innovation, we combine 125+ years of experience with cutting-edge solutions to help clients navigate evolving regulatory landscapes. Our accolades, including the 2025 ClearlyRated Best of Accounting Client Satisfaction Award, reflect our dedication to excellence, evidenced by an 81.3 NPS scoresignificantly above the industry average. We maintain transparency through annual client surveys, peer-reviewed audit processes, and continuous engagement with regulatory developments to ensure clients remain informed and prepared for future challenges.
Services
Tax Services
Audits
Advisory
Cybersecurity
Private Client Services
Outsourced Accounting
Forensic Investigations
ESG Consulting
Technology Advisory
Highlights and features
- We offer 125+ years of proven expertise in accounting and advisory services.
- Our global network through PKF International provides seamless cross-border support.
- Award-winning client satisfaction with an 81.3 NPS score in 2025.
- Specialized teams serve niche industries including not-for-profits and private equity.
- Proactive approach to regulatory changes and cybersecurity threats.
Associations and certifications
- AICPA Center for Audit Quality
- PKF International
What people say
Professional and knowledgeable
Excellent service
Timely and competent
Proactive approach
Superior thought leadership
Services
Tax Services
PKF O'Connor Davies provides comprehensive tax planning and compliance solutions for businesses and high-net-worth individuals. Our experts navigate complex federal, state, and international tax regulations to optimize strategies for mergers, acquisitions, and estate planning. With specialized desks for Asia, Europe, and Latin America, we deliver tailored advice aligned with evolving tax laws like the One Big Beautiful Bill Act.
Audits
Our audit practice combines technical excellence with industry-specific insights to ensure regulatory compliance and operational efficiency. We conduct audits for public companies, employee benefit plans, and not-for-profits, supported by peer-reviewed quality controls. With 19 regional offices and global access through PKF International, we deliver timely, cost-effective assurance services to organizations of all sizes.
Cybersecurity
We offer CMMC assessments, penetration testing, and data governance solutions to protect businesses from cyber threats. Our specialists develop customized security frameworks aligned with GDPR and other regulations, including virtual CISO services. By combining risk advisory with digital forensics, we help clients mitigate vulnerabilities and respond to incidents across industries like finance and healthcare.
Advisory
Our advisory team addresses operational, financial, and strategic challenges through transaction support, ESG programs, and forensic investigations. We assist with mergers, litigation, and turnaround strategies while providing industry-specific insights for real estate, technology, and not-for-profit sectors. Our multidisciplinary approach ensures actionable solutions that drive growth and compliance.
Private Client Services
Tailored tax and estate planning services for high-net-worth individuals and families focus on wealth preservation and intergenerational transfers. Our specialists handle trust administration, charitable giving, and cross-border tax issues while collaborating with external advisors. With expertise in private equity compensation and family office needs, we deliver personalized strategies to protect and grow client assets.
Questions
What accounting and audit services does PKF O'Connor Davies offer?
We provide audits, reviews, compilations, employee benefit plan audits, public sector compliance, and SOC reporting. Our team specializes in not-for-profit and endowment fund accounting with global expertise through PKF International.
How does the firm handle tax compliance for international businesses?
Our international tax team offers cross-border structuring, FATCA compliance, and foreign tax credit planning via dedicated Asia, EU, and Latin America desks to navigate complex global regulations.
What cybersecurity services are available?
We offer CMMC assessments, penetration testing, GDPR compliance, and virtual CISO services to strengthen IT security frameworks for businesses of all sizes.
What distinguishes your advisory services?
Our multidisciplinary teams combine operational risk analysis, ESG programs, and forensic expertise to deliver strategic solutions for mergers, litigation, and business transformation.
How do you support private clients?
We provide personalized tax planning, estate preservation, and family office services tailored to high-net-worth individuals, including trust administration and charitable giving strategies.
What recognition has the firm received?
PKF O'Connor Davies earned the 2025 ClearlyRated Best of Accounting Client Satisfaction Award with an 81.3 NPS score, significantly exceeding the industry average.
