Task Force Investigation & Security (TFIS)
is a veteran‑founded, veteran/first responder operated, investigative and security agency built on the uncompromising standards of America’s finest military units. We are not a civilian company with a military aesthetic—we are a disciplined, mission‑driven unit that executes civilian operations with battlefield precision, professionalism, and integrity.
Founded and led by Richard Mangum, a United States Army Veteran, TFIS brings the values of honor, courage, commitment, duty, integrity, respect, and selfless service to every assignment.
At TFIS, we deliver elite‑level private investigations, process serving, intelligence gathering, and protective services to individuals, businesses, and institutions across Oklahoma and beyond. Our operators, agents, and process servers are held to strict standards of conduct, appearance, physical fitness, and operational readiness. Every team member is trained to perform under pressure, maintain client confidentiality, and execute their duties with professionalism and respect.
We are proud of our merit‑based culture, where performance—not favoritism—drives advancement. High‑performing personnel have the opportunity to advance into roles such as licensed private investigators, armed security operators, skip‑tracing specialists, bail enforcement agents, and more. As a company, we invest heavily in training, certifications, and professional development for those who prove themselves in the field.
Whether serving critical legal documents, conducting high‑stakes investigations, or protecting people and assets, TFIS operates with the discipline of a military unit and the precision of a specialized task force. Our goal is simple, provide elite level task unit resources of the military to the citizens of this great nation.
Task Force Investigation & Security
Veteran‑Founded | Veteran/first responder operated
“On Target. On Time. Every Time.”