Who We Are
Headquartered in Chicago, Illinois, Sierra Forensic Group (SFG) is a boutique professional services firm with access to a global network of 675+ professionals providing forensic accounting and investigations, advisory and compliance, entrepreneur services, and tax services to organizations, law firms, government agencies, boards of directors, and individuals.
Our professionals help clients investigate financial misconduct, resolve complex disputes, strengthen compliance programs, manage tax risk, and protect enterprise value. We specialize in forensic accounting, financial investigations, internal investigations, fraud examinations, litigation support, expert witness services, damages analysis, corporate compliance, forensic data analytics, and strategic tax planning.
SFG has significant experience assisting organizations with operations throughout Latin America and other international markets. Our professionals have supported matters involving multinational corporations, private companies, government agencies, law firms, and high-net-worth individuals across more than 90 countries.
As a certified Minority Business Enterprise (MBE), SFG was founded on the principles of excellence, integrity, innovation, and teamwork.
Countries Reached
Connecting clients with trusted forensic, compliance, and legal professionals worldwide.
Experts
Global network of forensic, accounting, tax, compliance, and investigative professionals
To be the world's most trusted forensic accounting and advisory firm, helping organizations detect fraud, strengthen compliance, optimize tax strategies, and safeguard what matters most.
To promote integrity by delivering independent forensic, compliance, entrepreneur, and tax solutions that help organizations prevent financial misconduct, manage risk, resolve disputes, and make confident business decisions.
SFG’s multidisciplinary team includes former Big Four forensic accounting professionals, Certified Public Accountants (CPAs), Certified Fraud Examiners (CFEs), Certified in Financial Forensics (CFFs), Certified Compliance & Ethics Professionals (CCEPs), Certified Anti-Money Laundering Specialists (CAMS), former FBI agents, former prosecutors, and industry specialists with decades of investigative and advisory experience.
Our professionals speak multiple languages, including English, Spanish, Mandarin, Cantonese, and German, enabling us to effectively support cross-border investigations and multinational engagements.
Within 24 hours, our U.S.-based professionals are prepared to deploy globally to assist clients with urgent investigations, compliance matters, regulatory inquiries, fraud allegations, and complex financial disputes. Through our carefully selected international alliance network, we provide local expertise while maintaining consistent quality and project oversight.
Collectively, our professionals have supported engagements across more than 90 countries, serving clients ranging from entrepreneurial businesses and privately held companies to Fortune 500 corporations, international law firms, financial institutions, government agencies, and nonprofit organizations.
Whether engaged directly by management, boards of directors, audit committees, legal counsel, or regulators, we deliver objective, independent, and defensible financial analysis that helps clients make informed decisions.
Diversity is one of SFG's greatest strengths. As a certified Minority Business Enterprise (MBE), we bring diverse perspectives, international experience, and cultural understanding to every engagement.
Our team reflects the global nature of today's business environment and helps organizations navigate complex cross-border challenges with cultural awareness, technical excellence, and practical solutions. We are proud to support our clients' supplier diversity initiatives while delivering the same high standards expected from the world's leading advisory firms.
Engagements across 90+ countries
Big Four Experience. Boutique Firm Agility.
Multidisciplinary Expertise
Commitment to Quality
Practical, Cost-Effective Solutions
Immediate Response When It Matters Most
Long-Term Value Beyond the Engagement
Global Reach with Local Insight
Diverse Perspectives Deliver Better Outcomes
As a certified Minority Business Enterprise (MBE), SFG brings diverse perspectives, international experience, and multidisciplinary expertise to every engagement. Our collaborative approach helps clients address complex forensic, compliance, entrepreneur, and tax challenges with innovative and practical solutions.
Technology & AI-Driven Solutions
Headquartered in Chicago with a presence in Miami, Sierra Forensic Group is a certified Minority Business Enterprise (MBE). The firm is known for delivering institutional-grade capabilities with boutique-level attention, guiding clients from chaos to clarity.
At Sierra Forensic Group (SFG), we deliver integrated forensic, compliance and regulatory, entrepreneur, and tax services through a partner-led operating model designed for organizations and individuals facing complex financial challenges. Every engagement is led by senior professionals who remain actively involved from strategy through completion, ensuring responsive communication, technical excellence, and practical solutions. Depending on each client's needs, we assemble multidisciplinary teams with expertise in dispute and litigation support, fraud investigations, corporate intelligence, insurance matters, government engagements, technology and data analysis, regulatory risk, compliance program design, internal controls, bookkeeping, financial reporting, budgeting and forecasting, CFO and advisory services, individual tax, business tax, tax planning, IRS and state representation, and offers in compromise. Our scalable global network enables us to efficiently support entrepreneurs, privately held businesses, multinational corporations, law firms, government agencies, boards of directors, and individuals throughout the United States and internationally.
Confidentiality is at the core of every Sierra Forensic Group engagement. Our clients routinely entrust us with highly sensitive financial records, tax information, proprietary business data, legal strategies, compliance matters, and personal information. Whether conducting fraud investigations, supporting disputes and litigation, supporting compliance program design and internal controls, advising entrepreneurs, or providing tax planning and IRS representation, we maintain strict confidentiality throughout every phase of the engagement. We utilize secure document management practices, role-based access controls, encrypted communication when appropriate, and established information security protocols to safeguard client data. Our professionals adhere to the highest ethical and professional standards and routinely execute confidentiality and non-disclosure agreements while complying with client-specific security requirements and applicable privacy regulations.
Every Sierra Forensic Group engagement is tailored to the client's objectives, complexity, and desired outcomes. We begin by gaining a thorough understanding of the client's business, financial environment, regulatory considerations, and strategic goals before defining a clear scope of work, timeline, deliverables, and communication plan. Throughout the engagement, clients work directly with experienced professionals who provide proactive updates, practical guidance, and timely recommendations. Whether assisting with fraud investigations, regulatory risk, compliance program design, internal controls, tax planning, IRS or state tax representation, CFO / advisory services, or other specialized matters, our structured approach emphasizes collaboration, transparency, and measurable results. Upon completion, clients receive actionable insights and practical recommendations that strengthen decision-making, improve compliance, reduce risk, enhance financial performance, and create long-term value.