Executive Leadership
Mario M. Radosavljevic
Executive Director
Mario M. Radosavljevic is the Executive Director of Blackstone Group OPS, where he leads the development and industrial deployment of operational performance systems engineered for military environments.
His work focuses on force preservation infrastructure — scalable, deployment-ready systems designed to support personnel availability, reduce physiological attrition, and operate reliably in logistically constrained theaters. Under his leadership, Blackstone Group OPS has transitioned from private-sector manufacturing into defense-aligned production structured for long-term U.S. and allied procurement.
Mario’s background spans manufacturing scale-up, supply chain architecture, and multi-region operational deployment across Europe, the Middle East, Africa, and North America. He works alongside military professionals, clinical specialists, and industrial partners to ensure that systems are not only biologically grounded, but institutionally executable.
He currently oversees NATO-aligned production capacity and strategic onshoring initiatives structured to support U.S. sovereign manufacturing objectives upon contract award.
His mandate is singular:
to build operational systems that increase readiness, protect human performance, and remain dependable when conditions are most demanding.
Advisory Board
Independent senior advisors supporting institutional engagement, governance, and strategic alignment.
General Bartolomeu Constantin Săvoiu (Ret.)
Senior Military Advisor — Defense & Institutional Engagement
General Bartolomeu Constantin Săvoiu (Ret.) brings decades of senior military leadership experience across defense strategy, institutional coordination, and international military cooperation.
During his active service, General Săvoiu held high-level command and advisory roles within the Romanian Armed Forces, contributing to national defense planning, force readiness, and alignment with NATO operational standards. His career includes extensive engagement with allied military structures and senior governmental stakeholders.
Following his retirement from active service, General Săvoiu continues to operate in an advisory capacity, supporting institutional dialogue, defense cooperation, and strategic engagement between military organizations and governmental decision-makers.
His work emphasizes structured, protocol-driven engagement, respect for national sovereignty, and alignment with established defense procurement and governance frameworks.
At Blackstone Group OPS, General Săvoiu serves as a Senior Military Advisor, supporting institutional introductions, strategic positioning, and high-level engagement with defense and governmental entities. His role is strictly advisory in nature and focused on facilitating appropriate, transparent dialogue within official military and governmental channels.
James Winningham
Senior Advisor — Intelligence, Counterterrorism & Strategic Operations
James Winningham is a United States Marine Corps Veteran with over three decades of experience spanning intelligence leadership, counterterrorism, counterintelligence, and strategic operational planning across high-risk and sensitive operational and intelligence environments.
He has served in senior Chief of Intelligence roles with operational responsibility across multiple theaters, including Kosovo and Afghanistan, where he supported mission planning, threat assessment, interagency coordination, and decision-making at both tactical and strategic command levels.
Mr. Winningham’s career has been defined by intelligence-driven operations, counterterrorism strategy, and operating within complex governmental and coalition structures. His work required close coordination with military leadership, intelligence services, diplomatic stakeholders, and host-nation authorities under mission-critical conditions.
Following his military service, he has continued to advise executives and organizations operating at the intersection of defense, intelligence, and government, with particular focus on operational readiness, institutional alignment, counterintelligence awareness, and risk-informed decision-making in regulated environments.
At Blackstone Group OPS, James serves as a Senior Advisor, supporting intelligence-informed strategy, institutional engagement, and operational positioning for government and defense programs. His role ensures that engagements with military, diplomatic, and governmental stakeholders reflect the discipline, clarity, and procedural rigor expected within U.S. and NATO defense ecosystems.
Sir Alexander Spasojevič
Senior Advisor — Classified Intelligence Operations & Strategic Affairs
Sir Alexander Spasojević is a former Intelligence officer with decades of experience operating across complex international security, diplomatic, and institutional environments.
Following his operational service, he has worked extensively with governmental, multilateral, and international institutions, advising on cross-border coordination, strategic alignment, and institutional engagement in high-classified contexts.
His experience spans cooperation with public authorities and private stakeholders across multiple regions, with a focus on credibility, compliance, and long-term strategic positioning within international frameworks.
At Blackstone Group OPS, Sir Alexander advises on intelligence-informed strategy, institutional relations, and engagement with governmental, humanitarian, and multilateral organizations, ensuring alignment with international standards and operational realities.
Elizaveta Nazimova
Senior Advisor — Economics, MENA & Humanitarian Strategic Partnerships
Elizaveta Nazimova advises on MENA strategic partnerships and humanitarian engagement, with a focus on cross-border collaboration, institutional alignment, and long-term relationship development.
She holds a Master’s degree in Economics from Plekhanov Russian University of Economics and has built her professional career in the United Arab Emirates, where she has been based for several years.
Her background includes working with established European enterprises and multi-generational organizations, supporting structured cooperation across complex regulatory, cultural, and institutional environments.
At Blackstone Group OPS, Elizaveta’s mandate is focused on civil, humanitarian, and philanthropic partnerships, including donor engagement, humanitarian coordination, and the development of long-term institutional relationships. Her role operates independently from military, NATO, or U.S. government procurement activities.
Her work emphasizes discretion, institutional credibility, and trust-based partnership building, ensuring consistency between humanitarian objectives, organizational integrity, and long-term impact.
PhD. Dr. Robert Jones
Senior Advisor — AI, Cybersecurity & Governance
He is a Freeman of the City of London, reflecting long-standing professional engagement with UK civic and institutional frameworks. Dr. Robert Jones advises boards, executives, and institutions on governance, cybersecurity, and strategic risk in highly regulated environments.
He operates at the intersection of technology, law, and decision-making, supporting organizations in understanding accountability, regulatory exposure, and assurance requirements for complex, mission-critical systems.
Dr. Jones has extensive experience advising at board and executive level on risk oversight, governance frameworks, and regulatory alignment, with a particular focus on AI-enabled and data-driven systems deployed in sensitive operational contexts.
He currently serves as a mentor at London Business School and has held non-executive and advisory roles across regulated sectors including healthcare, education, and public-sector technology. His work emphasizes defensible governance structures, institutional credibility, and long-term operational resilience.
At Blackstone Group OPS, Dr. Jones provides advisory support on governance, assurance, and institutional risk considerations related to advanced operational systems, ensuring alignment with regulatory expectations, ethical standards, and international best practices.