PASSION. EXPERIENCE. DILIGENCE.

Located in Greater Cincinnati, the Salvatore A. Grasso Co. with its nationwide reach have been a trusted name in private investigations and risk advisory since 1992. Leading Salvatore A. Grasso Co. is Salvatore Grasso, a many decades' strong veteran private eye with a reputation for his brutal thoroughness. Mr. Grasso believes that true intelligence is about more than just data—it’s about clarity and confidence. Mr. Grasso demands excellence from his ...

What distinguishes us is our uncompromising, results‑driven methodology—an approach defined by persistence, precision, and an unyielding commitment to uncovering the truth. Our team brings together a rare blend of expertise: former investigative journalists, analysts from the U.S. Intelligence Community, federal law enforcement professionals, alumni of the FBI’s elite Special Surveillance Group (SSG), and even former actors whose mastery of human behavior ...

Rooted in a tradition of strong values and driven by a passion for relentless accuracy, we have dedicated decades to providing clarity and guidance to our clients. From the beginning, our philosophy has been simple yet profound: your problem becomes our priority. Our dedication is more than procedural — it’s personal. We pursue the truth with tireless focus, ensuring no detail is overlooked and no client left uncertain. We serve — protecting what matters ...

What Our Clients Say About Us

Google Reviews

Kim Schweitzer
I can’t recommend Sal highly enough. He is extremely knowledgeable, professional, and thorough, and he took the time to explain everything clearly...  Read more
Jan 6, 2026
Benjamin Seabolt
Sal's experience and networking shows in his ability to adapt, overcome and accomplish the task at hand. He is a true professional and an unselfish...  Read more
Jan 1, 2026
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Ready to find answers? Reach out today to discuss your concerns and let our expertise guide you toward clarity and resolution. We’re here to help.

Services

What We Do

What We Do

Surveillance

Cheating. Infidelity. Business. Surveillance is a crucial tool for gathering information …
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Due Diligence

Due diligence is essential when making critical decisions that could have far-reaching …
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Background Investigations

Background investigations are invaluable for making informed decisions in both personal …
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Child Custody

Often adversarial, child custody investigations are an important part of family law …
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Asset Tracing

Divorce. Fraud. Debt Recovery. Crucial in litigation, or in the anticipation of …
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Missing persons

Missing Person Investigations When someone goes missing, every second matters. At …
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