We understand the DEA because we’ve been the DEA

Our team is made up of former DEA special agents and diversion investigators experienced at conducting controlled substances audits and criminal investigations of diversion.

Meet our team

Titan Group DEA Jack Teitelman

Jack Teitelman


Jack has more than three decades of continuous leadership expertise in government, security, law enforcement and private industry.

For 26 years, he worked for the Department of Justice/Drug Enforcement Administration as a Special Agent and Supervisory Special Agent, gaining extensive experience in all facets of complex criminal drug conspiracy investigations. He received numerous awards and commendations.

Jack has years of training in advanced technical electronics and security systems. He managed a sophisticated electronic surveillance program, including tactical and non-tactical technology-based solutions that enabled and enhanced the DEA’s intelligence and law enforcement functions. As a divisional security officer, he conducted physical security assessments, instituted safety programs and conducted numerous internal investigations of employees’ backgrounds and violations of agency standards. 

He has successfully completed numerous foreign and domestic assignments that established his expertise in investigations, security and protection. He has corporate insight as well, having directed executive protection for a major hedge fund company, after retiring from the DEA.

Jack is joined by a vast network of leading investigators worldwide, who ensure that our clients receive the highest quality support and services.

Titan Group DEA Sharon Teitelman

Sharon Richter


As Chief Marketing Officer, Sharon wears many hats. She is an expert in business process improvement and is experienced in leading large-scale, cross-functional project teams. She is a strategic thinker and problem-solver who brings hands-on experience designing and executing market insights and voice-of-the customer research. She spent nearly 15 years in senior strategy and marketing management positions at American Express and nearly five years as a Vice President, Product Manager in the Commercial Card Division of JP Morgan Chase. She is also Jack’s better half.


Lucia Lopez

Titan Group welcomes Lucia “Lucy” Lopez, JD, MSHRM to the Titan Team. She has over 20 years’ experience within the Human Resources and Health and Safety compliance arena, working across a variety of industries and sectors. Lucia has provided support and advice to both small and large organizations. Her approach is to work closely with the organization in a firsthand way.

As a consultant Lucia’s experience demonstrates the ability to add value and deliver results for the client in a practical and sensible manner.

Projects have ranged from interim HR management at Director Level on rationalization and restructuring projects, to HR consultancy projects such as implementation of Performance Management processes, Compliance Audits, Job Evaluation and management of acquisitions and mergers, as well as implementation of a broad range of organizational /development projects for various companies. Lucia has extensive ER experience including managing union relationships both at an operational and strategic level.

She has collaborated with senior teams and executives to support strategic planning and implementation as well as advising on complex or challenging people related issues. She also understands the needs of smaller organizations and has developed strong working relationships with a range of businesses.

In addition, Lucia has direct experience of HR strategy development, implementing large scale and small redundancy programs. Prior to moving into consultancy, Lucia served in the US Army for a Transportation Battalion then worked as Military Police overseas. Lucia worked as Regional Human Resources Director and Manager for both large and small global organizations. Lucia’s experience is supported by a Bachelor of Arts Degree with a major in English and Irish Literature, a Post-Graduate Degree in Law (JD) and a master’s in human resources management Degree and currently is enrolled at Harvard University completing her PhD.