MIAMI–(BUSINESS WIRE)–5 Stones intelligence (5Si)®, a leading professional intelligence and investigations firm headquartered in Miami, FL, with additional offices in Washington, D.C. and across the globe, has announced a significant expansion of its leadership team. The company has welcomed seven seasoned law enforcement, intelligence, and military professionals from the U.S., U.K., and Israel, while also promoting two exemplary internal leaders, further strengthening its position as the operator of the world’s largest private HUMINT intelligence network serving government, corporate, and private-sector Clients worldwide. The new hires include Helene Miller KPM, former London Metropolitan Police Detective Chief Inspector; Bailea Tinsley, former FBI Special Agent; Daniel Forst, former Israel Defense Force Unit 8200; Mack Strong, former HSI Miami Supervisory Special Agent; Matthew Germanowski, former DEA Special Operations Senior Executive; John Gazzarra, former DEA Assistant Special Agent in Charge; and Louis Sastre, former Miami Police Task Force Agent. In addition to these appointments, Grayson Blake has been promoted to Director of Science & Technology Services, and Matthew Tinsley has been promoted to Chief of Staff.


“Our Clients rely on us for their most sensitive investigations and intelligence challenges,” “With more than 100 years of combined global law enforcement and intelligence experience, the addition of these exceptional individuals further enhances our global services and enables us to continue delivering extraordinary outcomes for our Clients.”Brian Talay, CEO of 5Si