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When choosing which cyber security company will protect your business, it is critical to vet the leadership. Get to know our experts and what sets them apart from the competition.
CHIEF EXECUTIVE OFFICER/FOUNDER
Jarrett Kolthoff, CEO & Founder of SpearTip, emerged as an internationally recognized cybersecurity expert, keynote speaker, and entrepreneur shortly after leaving military service as a Counterintelligence Agent. The SpearTip team responds to cyber intrusions across the globe and protects our clients 24/7 with our ShadowSpear Platform, focusing on protecting Enterprise corporations and Managed Service Providers.
Jarrett holds a BA in Political Science & Economics Rockhurst University and a Masters in International Relations from Troy State University. Jarrett brings real world experience backed by numerous technical certifications, including Sans Global Information Assurance Certification–Forensic Analyst (GCFA) and Certified Information Systems Security Professional (CISSP).
VICE PRESIDENT
A decorated member of the United States Marine Corps, Joe attained the rank of Master Sergeant (E-8) before retiring from active duty in 2005. At SpearTip, Joe is tasked with continually improving internal processes, as cybersecurity strategies and tactics adapt, evolve and change seemingly by the minute. Joe’s dedication and commitment to every organization the company serves can be seen across multiple disciplines ranging from Incident Responses, Assessments, and Digital Forensics, to Managed Detection and Response.
CHIEF FINANCIAL OFFICER
When it comes to finances, Chris makes the numbers work at SpearTip. Chris brings over three decades of accounting and business experience to the SpearTip team, after having worked in Construction and Commercial Real Estate for most of his career. Chiefly among Chris’ duties are annual budgeting, creation of monthly financial statements, and external reporting to financial institutions and other outside entities, as well as both short- and long-term strategic and financial planning.
DIRECTOR, SOFTWARE ENGINEERING
Kip brings 2+ decades of multi-discipline IT experience into his role of leading the Product Management and Software Engineering teams through clear communication and focused collaboration. His background in Infrastructure, Service Management, Project Management, and leadership provide a well-rounded pool of knowledge for tackling strategic and tactical challenges. At SpearTip, Kip is primarily charged with supervising the enhancement and maintenance of the ShadowSpear Platform.
REGIONAL DIRECTOR - MIDDLE EAST AND NORTH AFRICA
Charles Tony has 15 years of experience working closely with private and public sector clients in the Middle East to develop robust and future-ready technology solutions that reduce business operational costs, increase bottom-line benefits, and enhance brand value. His areas of expertise include Smart Cities, the Internet of Things (IoT), Cybersecurity, Energy, and Sustainability Management. Skilled in market research, business development, consultative sales, Go to market strategy, and technical design development for SaaS-based applications.
DIRECTOR OF ADMINISTRATION
A United States Marine Corps Veteran, Debbie achieved the rank of Sergeant E-5 before her retirement in 1991, but continued to advance her career with a Bachelor of Science Business Management degree from Northern Kentucky University. Utilizing her planning and event management skills, Debbie organizes and arranges casework for our Security Operations Center. She enables processes to run smoothly and is a driving force for SpearTip’s success. Debbie takes on different roles every day to ensure SpearTip’s administrative sector is flowing as efficiently as possible by working in tandem with the engineers in our Security Operations Center.
MANAGER, SECURITY OPERATIONS CENTER
PRINCIPAL CONSULTANT
Timothy Reboulet has over 20 years of international and domestic law enforcement experience. As a Senior Special Agent with the United States Secret Service, Tim has served on the Presidential Details of President George W. Bush and President Barack Obama and more recently focused on federal cyber security risk detection and mitigation. Tim’s cyber background includes leading the USSS Electronic Crimes Task Force inclusive of government and corporate participants and assignments to Europol (European Cyber Crime Center —EC3) and Critical Systems Protection division. Tim will take over SpearTip’s Advisory Services and assist organizations with both pre and post breach scenarios.
CONTROLLER
Brandi brings over 15 years of accounting experience to her role as Controller at SpearTip. At the age of sixteen, she began her career with a position as an Accounting Clerk at a local medical supply company, which lead to a lifetime love of mathematics, statistics, analysis, and organization. In 2010, she graduated from Maryville University with a bachelor’s degree in Actuarial Science. Highly organized and analytical, Brandi looks to serve SpearTip by improving internal processes and controls for a higher level of efficiency and functionality.
DIRECTOR, HUMAN RESOURCES
As Director of HR at SpearTip, Danielle brings tremendous experience, including certifications as an LMSW and SHRM-CP. After earning degrees in Criminology and Social Work, she spent several years serving families and communities by providing crisis intervention and assistance to victims of complex trauma. She then transferred these skills to the FBI as HR Administrator, helping agents enhance their performance, coordinating with community partners, and selecting talented individuals for the team. At SpearTip, Danielle is responsible for recruiting and staffing efforts, employee engagement initiatives, and overseeing the performance management strategy.
MANAGER, INCIDENT RESPONSE
Michael Dunn served a total of 14 years in Law Enforcement for the City of Bellefontaine Neighbors, which included 5 years as a Detective. Michael was a member of the Major Case Squad of Greater Saint Louis, elite homicide unit, as a Deputy Report Officer. As part of his law enforcement work, Michael conducted numerous investigations and digital forensics work making the career shift to cybersecurity a seamless transition. At SpearTip, he worked for two years as a security analyst and security engineer with primary focuses on cyber threat hunting, reverse engineering, digital forensics, and incident response. In this time, Michael earned numerous industry certifications, including CompTIA Sec+, CySA+, MCFE and eCMAP. Michael recently moved into the role of Incident Response Manager where he leverages his experience and that of his team to ensure businesses recover quickly and fully from malicious cyberattacks.
Craig is a renowned corporate executive, business owner (of national and global firms), management consultant, author, adjunct professor, and speaker who focuses on building start-up and growth companies, identifying new markets, expanding through both organic and M&A growth, and facilitating ownership transitions.
Craig’s numerous specialties include service within several industries, including financial, manufacturing, distribution, service, construction, education, software, publishing, healthcare, technology, and cyber counterintelligence.
Throughout his career, Craig has delivered hundreds of workshops and presentations globally. He earned his Master’s degree in Business Administration in Finance and Marketing from Northern Illinois University and his Bachelor’s in Business from University of Missouri.
As a member of SpearTip’s Advisory Board, Craig lends his expertise on numerous business growth strategies.
In his 32-year career with PricewaterhouseCoopers LLP, a registered public accounting firm, Mr. Linnenbringer held numerous leadership positions, including managing partner for the U.S. banking and financial services industry practice, chairman of the global financial services industry practice, and member of the firm's policy board and world council of partners.
Mr. Linnenbringer also served on the Board of Directors of SunTrust Banks, Inc., a New York Stock Exchange listed financial services company, before retiring in 2016. He also served as a director of TeleTech Holdings, Inc., and chairs its audit committee. In the community, Mr. Linnenbringer supports Education with a scholarship fund for undergraduate students at his alma mater, University of Missouri.
Mr. Bonner served as Vice President and Chief Information Officer of Texas Instruments from January 2000 to May 2014. In this role, Mr. Bonner managed the business processes and technology for the corporation and was a member of the company’s strategy leadership team. During his 33-year tenure, Mr. Bonner served Texas Instruments in several executive roles with positions in product P+L management, worldwide marketing, and acquisition integration.
Mr. Bonner is known as a technology-driven, C-Suite leader with a record of managing a broad range of businesses, operations, and technology product development for global corporate enterprises. Mr. Bonner holds an M.B.A. in Marketing and Finance from the Fuqua School of Business at Duke University, an MSEE and BSEE from the University of Michigan, and a B.A. in Physics from Kalamazoo College.
Mr. Major graduated from Syracuse University in 1965 with a degree in the life sciences, after which he served in the US Army as a Captain in Armor Branch for 5 years before being appointed an FBI Special Agent. He served in four Field Offices as well as three assignments at FBI Headquarters.
Mr. Major has made a life-long commitment to the practice and study of counterintelligence and its subset, counterterrorism, making him one of the nation's top experts on the subject. His views and advice are sought after by the government, private companies, and global media.
Upon retiring from the FBI in 1994, Mr. Major founded the Centre for Counterintelligence and Security Studies (CI Centre) to provide high-quality counterintelligence, counterterrorism, and security training for the government and corporate sectors. The CI Centre has developed numerous training courses and has trained over 100,000 people in counterintelligence, intelligence, counterterrorism, and investigative skills.
Michael Fagan served as an Assistant U.S. Attorney for the Eastern District of Missouri for 25 years, until February 2008, and now consults on domestic and transnational criminal law and procedure, anti-money laundering, counterterrorism, intelligence, and emergency planning issues. In his tenure, Mike served as a Special Attorney to the United States Attorney General from 1995 to 1997.
As Coordinator of the Anti-Terrorism Advisory Council in 2001, Mike governed regional counterterror efforts for over six years and continues today as a Special Advisor to the Missouri Office of Homeland Security, as well as a member of the St. Louis Regional Response System Advisory Board. The Department of Justice conferred on Mike the National Exceptional Service Award and the EOUSA Director’s Award.
MANAGING DIRECTOR AND PRESIDENT - THE FORTUNE GROUP LLC
Paul has over 35 years of investment banking experience in advising corporate clients and their owners in the evaluation and completion of mergers, acquisitions, divestitures, recapitalizations and a variety of capital raising transactions. He has represented clients in a wide range of industries including business services, branded consumer products/services, industrial manufacturing/distribution and healthcare services. Paul has extensive expertise in working with and understanding the unique characteristics of founder- and family-owned businesses.
He is also President of FG Capital, The Fortune Group’s FINRA-registered broker-dealer subsidiary. Paul currently holds Series 24, 82 and 63 securities licenses.
Paul holds an MBA from the Harvard Business School and a BS in civil engineering from Missouri University of Science and Technology (formerly University of Missouri-Rolla).
Our mission is simple; day by day, engagement by engagement, shift by shift, alert by alert, we defend our partners from cyber threats. Daily we save jobs, businesses, communities, governments, and livelihoods, and ultimately allow them to fulfill their own missions. Blend cutting-edge technologies, unique skill sets and proven military cyber counterintelligence strategies, SpearTip partners with our clients to protect shareholders’ value, shield corporate reputations and enhance long-term profits.
24/7 Breach Response: US/CAN: 833.997.7327
24/7 Breach Response: UAE: 800.0184.091
Main Office: 800.236.6550
1714 Deer Tracks Trail, Suite 150
St. Louis, MO 63131
©2023 SpearTip, LLC. All rights reserved.
As the Manager of the ShadowSpear platform, DJ leads multiple teams of Analysts and Engineers in protecting SpearTip's Partners 24/7. Together with his teams, the SOC detects, analyzes, and prevents hundreds of Cyberattacks daily leveraging the ShadowSpear Platform to defeat threat actors. DJ brings years of IT experience and hands-on Security Experience to his role. As a leader, DJ promotes hands-on learning, laboratory engagements, and reviewing previously found security incidents. Outside of work, DJ spends a lot of time on DIY projects renovating his home.