Helping Our Clients Uncover The Truth and Protect What Truly Matters

Helping Our Clients Uncover The Truth and Protect What Truly Matters

Led by a retired FBI Special Agent, Attaché Investigations delivers elite investigative, security, and executive protection services, trusted by corporations, legal teams, and high-profile individuals nationwide.

What We Can Do

Custom Tailored Services

Attaché Investigations specializes in expert investigations, security consulting, and executive protection. Whether you’re safeguarding a high level business executive, seeking critical information on your case, or strengthening your organization’s security, our team delivers precise, discreet solutions tailored to your needs.

worried and disappointed remote online working man in casual outfit with laptop sitting in an coworking / home office at a work desk

Uncover hidden facts that can impact your case

Identify key weaknesses within your organization

Expert protection services designed to maximize security

Our Mission

Attaché’s mission is to uncover the truth, mitigate unseen threats, and provide peace of mind so clients can focus on what matters most. Guided by the FBI’s core values of Fidelity, Bravery, and Integrity, we deliver trusted investigative, security, and executive protection solutions through a nationwide network of former FBI agents and global experts.

Timothy G. Denny

Chief Executive Officer & Founder of Attaché

Timothy G. Denny is the founder and CEO of Attaché Investigations, LLC, a firm specializing in investigations, security services, and executive protection. He brings over two decades of experience as a Special Agent with the FBI, where he served on high-level task forces in New Orleans and internationally, including organized crime units in Budapest, Hungary. Throughout his career, Mr. Denny has led complex investigations involving espionage, fraud, counterintelligence, and violent offenses, and has provided expert testimony in both federal and state courts.

Why Professional Organizations Trust Attaché

We Provide Comprehensive Solutions Around The Globe

We Provide Comprehensive Solutions Around The Globe

Proactive Intelligence

We don’t wait for problems to escalate. Our team anticipates threats, gathers actionable intelligence, and delivers solutions before issues can disrupt your business or safety.

Trusted Federal Experience

Our team is built upon experienced gained from service to Federal agencies. We bring all the experience gathered throughout the years to serve you best.

We Go Beyond Service

We Strive For Excellence No Matter The Scope

At Attaché Investigations, “service” is just the starting point. We work as an extension of your team, proactively identifying key aspects and closing gaps to deliver customized solutions that align with your needs. Whether it’s in-depth investigations, security consulting, or executive protection, our team brings the mindset of a trusted partner, not just a service provider. It’s this deeper level of commitment that sets us apart and earns us long-term trust from our clients.

Our Work

Testimonials

In my career with the US Dept. of Justice and Naval Intelligence, I had the privilege of working with the consummate federal enforcement professionals. Tim Denny-during his years as an FBI Special Agent, worked seamlessly with our US. Attorney’s Office in New Orleans, distinguished himself as one of the finest federal investigators anywhere. Through his extraordinary experience, skill and ethical standards, Tim Denny represent the best of the best.

Jim Letten
Commander, USN, (RET)
United States Attorney, EDLA (RET)

Having known Tim Denny for over 20 years, I can unequivocally state that he is a highly intelligent, honest, and dedicated investigator who is devoted to discovering the truth. On a personal note, you will also not find a better husband, father, and friend.

Richard “Chip” Hardgrave
FBI Supervisory Special Agent (RET)

I worked with Tim overseas in a very austere and difficult work environment where everything was looked at under a microscope; and lives, reputations and international relationships were at stake! Tim never faltered and excelled in every mission, investigations and operation. Tim is the “go to” guy when it has to be done and failure is not an option.

Greg Shaffer
Shaffer Security Group
 FBI Legal Attaché Budapest, Hungary & FBI Supervisory Special Agent (RET)