Corporate investigations and compliance, strategic advisory, and financial asset investigations for executives, legal counsel, and financial institutions.
When allegations, conflicting accounts, or financial questions demand reliable answers, we combine complex investigative interviews, evidence analysis, and senior judgment to help you decide what to do next.
Led by David P. Frizell, Jr., CFE, former CIA officer and NCIS Special Agent.
Founded 1995Three decades serving sensitive corporate matters
Former Federal Law EnforcementCounterintelligence-informed investigative judgment
Certified Fraud ExaminersFraud, compliance, and financial investigation expertise
Nationwide & International ReachHouston-based, serving clients across major markets
When to Engage Frizell Group
We are often contacted when something does not feel right, when internal resources need support, or when the matter carries legal, financial, operational, or reputational risk.
Fraud, theft, employee misconduct, ethics violations, or vendor concerns require an objective and discreet response.
A complaint requires independent review
Hotline reports, internal complaints, audit concerns, or leadership requests need credible fact development.
Financial activity does not add up
Asset visibility, unexplained transactions, recovery opportunities, and business relationships require deeper analysis.
Counsel needs defensible findings
Legal teams need facts, witness information, documentation, and investigative support aligned with case strategy.
Leadership needs direction
Executives need a clear understanding of risk, exposure, options, and the next most responsible step.
Security coverage must be professional
Facilities, events, executives, and sensitive environments may require coordinated Off-Duty Police Services.
Core Services
Investigations and advisory support built around your decision.
Our priority is reliable information you can use: to respond to misconduct, assess risk, evaluate financial claims, or determine the next responsible step.
Corporate Investigations and Compliance
Independent investigations into fraud, employee misconduct, vendor concerns, and compliance allegations, with careful interviews and documented findings.
Senior investigative judgment for leaders assessing an allegation, preparing a response, strengthening controls, or deciding whether further investigation is warranted.
Commissioned law enforcement officers for corporate facilities, healthcare, industrial sites, schools, retail, and special events, across Texas and many U.S. locations.
David P. Frizell, Jr., CFE, brings CIA, NCIS, and federal investigative experience to complex interviews and sensitive corporate matters. Thomas C. Kiefer, CFE, adds command-level law enforcement and investigative leadership.
Susan K. Strong, CFE, directs financial asset investigations with more than 25 years of domestic and international banking experience. Together, our principals connect investigative findings to the decisions clients need to make.
Persistent, disciplined work designed to identify the facts that matter.
Integrity
Objective, honest findings that can withstand scrutiny from knowledgeable clients.
Discretion
Controlled information handling and careful execution in sensitive environments.
Complex Investigative Interviews
Careful interviews uncover the facts that records alone cannot explain.
Conflicting accounts, senior employees, insider concerns, and evidence gaps require preparation and disciplined questioning. David Frizell and Tom Kiefer can conduct tandem subject interviews, combining complementary experience, follow-up questions, and coordinated documentation. Interview information is evaluated alongside records and other evidence.
Trusted for judgment, integrity, and careful work.
“Frizell Group has earned and kept my trust over the years by being responsive, thorough, careful and creative. There’s a personal touch, too, that translates into superior service. They care, and that means a lot.”
Greg · Associate General Counsel International Financial Services Firm
“David Frizell is an outstanding investigator who achieves excellent results, all the while staying within the boundaries of the law and ethical parameters for investigators.”
John · Assistant General Counsel U.S. Government Agency
When should a company engage an external corporate investigator?
When the matter is sensitive, complex, potentially high-impact, or when internal handling may lack independence or objectivity. Common triggers include fraud allegations, employee misconduct, vendor concerns, financial irregularities, hotline complaints, and legal or reputational exposure.
How does Frizell Group maintain confidentiality?
We structure engagements discreetly, limit information sharing to essential parties, coordinate carefully with leadership or counsel, and work to minimize operational disruption while protecting sensitive facts and client information.
Does Frizell Group work with outside legal counsel?
Yes. We frequently support internal and external counsel by developing facts, conducting interviews, identifying documents and witnesses, and helping counsel evaluate risk and strategy.
Does Frizell Group provide Off-Duty Police Services?
Yes. We provide Off-Duty Police Services for corporate facilities, healthcare, industrial sites, schools, retail, and special events, throughout Texas and in many locations across the United States.
Introduction
A brief introduction to how we approach sensitive matters.
If something does not feel right, or if leadership needs objective facts before taking the next step, contact Frizell Group directly. We will assess the situation and recommend a practical path forward.