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TEAM

Meet the People of The Chertoff Group

about Our principals have worked closely together for years, as leaders of the Department of Defense, the Department of Homeland Security, the Department of Justice, the National Security Agency and the CIA.

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We’ve seen each other under pressure – the kind of pressure most people would never want to see, with thousands of lives or even the whole nation’s security at stake, with no time to spare and usually with limited information. We came through it together. And the United States came out stronger.

We reorganized the country’s disaster response system, so we’ll never again see anything like the aftermath of Hurricane Katrina. We vastly improved interagency communications, so federal and local agencies won’t be in the dark about who’s doing what. We developed a whole new approach to border security and counterterrorism.

We came to know each other under the most trying circumstances. We came to trust each other with our lives. We work incredibly well – together – under pressure. And once you get to know us, you’ll understand how valuable we can be to securing the future of your organization.

 

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Michael Chertoff
Michael Chertoff
Michael Chertoff
 

 

Michael Chertoff

Co-Founder and Executive Chairman

As Secretary of the U.S. Department of Homeland Security from 2005 to 2009, Michael Chertoff led the country in blocking would-be terrorists from crossing our borders or implementing their plans if they were already in the country. He also transformed FEMA into an effective organization following Hurricane Katrina. His greatest successes have earned few headlines – because the important news is what didn’t happen. more >>>

Jason Kaufman
Jason Kaufman
Jason Kaufman
 

Jason Kaufman

Managing Principal and Head of M&A

Jason Kaufman is Managing Principal of The Chertoff Group, a premier global advisory firm that focuses exclusively on the security and risk management sector by providing business strategy, risk management, and mergers and acquisitions (M&A) advisory services to clients seeking to secure and grow their enterprises. With an accomplished career focused on advising professional services and technology firms in the national security, defense and information security markets, Mr. Kaufman oversees the Firm’s activities to ensure clients benefit from the full breadth of the Firm’s capabilities.  more >>> 

Chad C. Sweet
Chad C. Sweet
Chad C. Sweet
 

Chad C. Sweet

Co-Founder

Chad Sweet is a Co-Founder of The Chertoff Group, a global advisory firm and investment bank exclusively focused on the security sector. Mr. Sweet formerly served as the Chief of Staff of the United States Department of Homeland Security (DHS). Prior to becoming Chief of Staff of DHS, Mr. Sweet worked as an investment banker at the firms of Morgan Stanley and Goldman Sachs as well as served in the CIA's National Clandestine Service. more >>>

 

 

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Jayson Ahern
Jayson Ahern
Jayson Ahern
 

Jayson Ahern

Principal

On January 2, 2010, Jayson P. Ahern retired from 33 years of federal service to both the U.S. Customs Service and U.S. Customs and Border Protection. At the time of his retirement, he had served for nearly a year as Acting Commissioner of U.S. Customs and Border Protection (CBP) and was responsible for securing, managing and controlling our Nation’s borders. more >>>

 

 

Charles Allen
Charles Allen
Charles Allen
 

Charles Allen

Principal

At DHS, Charles E. Allen developed the department’s intelligence architecture, integrated its intelligence activities and ensured that they were continuously aligned with the department’s evolving priorities. He also accelerated and expanded the department’s processes for sharing intelligence with state and local security and law enforcement officials. more >>>

 

 

 

Jay Cohen
Jay Cohen
Jay Cohen
 

Jay Cohen

Principal

Innovative problem solving and science and technology have always been among Jay M. Cohen’s strong points: Early in his naval career he mastered Nuclear Power Training and later commanded a nuclear submarine. He followed that with stints as a senior member of the Nuclear Propulsion Examining Board for the U.S. Atlantic Fleet; command of a major surface ship, Director of the Navy Y2K Project Office; and Chief of Naval Research. more >>>

 

 

 

Jay Cohen
Jay Cohen
Jay Cohen
 

Dr. Jerome Hauer

Principal

Dr. Jerome M. Hauer, a leading expert in emergency management and crisis planning, is a Principal at The Chertoff Group where he helps clients establish and execute effective risk management strategies that can anticipate threats, reduce vulnerabilities and execute plans and procedures designed to support business continuity and personal safety. Prior to joining The Chertoff Group, Dr. Hauer was appointed by New York State Governor Andrew M. Cuomo to serve as Commissioner of the Division of Homeland Security and Emergency Services. more >>>

 

 

Michael Hayden
Michael Hayden
Michael Hayden
 

Michael Hayden

Principal

As Director of the Central Intelligence Agency, General Michael Hayden was responsible for overseeing the collection of information concerning the plans, intentions and capabilities of America’s adversaries; producing timely analysis for decision makers; and conducting covert operations to thwart terrorists and other enemies of the US. more >>>

 

 

Nathaniel Fogg
Nathaniel Fogg
Nathaniel Fogg
 

Greg Hill

Principal

Greg Hill is a Principal at The Chertoff Group, where he advises clients on both strategic growth and business opportunities in the national security marketplace, and how to best identify threats, reduce vulnerabilities, and protect their most critical assets, both domestically and internationally.  In addition, Mr. Hill serves as a partner of TCG Capital Partners, The Chertoff Group’s primary vehicle for investment activities. more >>>

 

 

Adam Isles
Adam Isles
Adam Isles
 

Adam Isles

Principal

Adam Isles is a Principal at The Chertoff Group, where he helps clients evaluate and mature their security risk management programs.  Mr. Isles has managed security services engagements for clients in a number of industries, including financial services, retail, transportation, food and agriculture and utility sectors.  more >>>

 

 

 

Jason Kaufman
Jason Kaufman
Jason Kaufman
 

David Leach

Principal

David Leach is a Principal at The Chertoff Group where he advises clients across all stages of the business lifecycle.  In this position, Mr. Leach provides strategic advice to Chertoff Group clients to help them achieve their growth objectives with a focus on the defense, intelligence, security, and government services sectors. Prior to joining The Chertoff Group, Mr. Leach spent thirteen years at Goldman Sachs in the Investment Banking Division, most recently as a Managing Director in New York City.  more >>>

 

Graham Love
Graham Love
Graham Love
 

Graham Love

Principal

Graham Love retired as Group Chief Executive of QinetiQ in November 2009 after a career with the company and its predecessor organisations spanning nearly 20 years, and including 2 privatisations, 2 highly successful private equity partnerships, and an IPO which saw the UK’s previously government owned defence research agencies transformed into a major international company listed in the FTSE 250. more >>>

 

 

Alastair MacWillson
Mark Weatherford
MarkWeatherford
 

Alastair MacWillson

Principal

 

As a Principal at The Chertoff Group, Dr. Alastair MacWillson advises a global client base on how to strategically protect their company’s most critical assets and achieve their business objectives by providing risk management advice aimed at helping their companies identify threats and reduce vulnerabilities.  Prior to joining The Chertoff Group, Dr. MacWillson served eleven years as the Global Managing Director Technology Consulting at Accenture. more >>>

 

Jim Pflaging
Jim Pflaging
Jim Pflaging
 

Jim Pflaging

Principal

Jim Pflaging is the global lead for the strategy and business development practice for The Chertoff Group. He works with technology firms and investors to develop growth plans and to evaluate and implement investment opportunities across many sectors.  In these roles, Mr. Pflaging focuses on the intersection of big data, cyber security, and open source software and provides strategic advice encompassing product, positioning, alliance & channel development strategy.  more >>>

 

 

Mark Weatherford
Mark Weatherford
MarkWeatherford
 

Mark Weatherford

Principal

Mark Weatherford is a Principal at The Chertoff Group and advises clients on a broad array of cybersecurity services. As one of the nation’s leading experts on cybersecurity, Mr. Weatherford works with organizations around the world to effectively manage today’s cyber threats by creating comprehensive security strategies that can be incorporated into core business operations and objectives. Prior to joining The Chertoff Group, Mr. Weatherford served as the U.S. Department of Homeland Security’s first Deputy Under Secretary for Cybersecurity within the National Protection and Programs Directorate. more >>>

 

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Debbie Eng
Debbie Eng
Debbie Eng
 

Debbie Eng

Managing Director

At the Chertoff Group, Debbie Eng is a senior member of the strategy and business development practice area for The Chertoff Group provides a range of advisory services to clients with innovative, security-oriented technologies and services.  In this position, she works closely with these technology firms to develop growth plans specifically within the federal markets of homeland security, defense, and the Intelligence Community.  Ms. Eng also works with private sector companies to augment business operations with comprehensive security strategies to counter today’s cyber threats. more >>>

 

  

William Marshall
William Marshall
William Marshall
 

William Marshall

Managing Director

William Marshall brings to the Chertoff Group a broad base of expertise in intelligence and cyber-related matters after nearly 35 years of service at the National Security Agency/Central Security Service (NSA/CSS), where he held a variety of senior leadership, management, and analysis positions in support of the U.S. Intelligence Community and Department of Defense. more >>>

 

 

 

  

Katy Montgomery
Katy Montgomery
Katy Montgomery
 

Katy Montgomery

Managing Director

Katy Montgomery joins The Chertoff Group as a senior public affairs advisor focused on creating thoughtful and strategic communications plans to help clients be prepared and navigate through both anticpated challenges and unpredictable events.  During her career, she has served as a strategic communications advisor and spokesperson for senior government officials at the U.S. Department of Homeland Security, The White House, and U.S. Department of Education. more >>>

 

 

Bennet Waters
Bennet Waters
Bennet Waters
 

 

Bennet Waters

Managing Director

Bennet Waters has a successful record of senior leadership experience in a variety of public, private and federal government settings. He specializes in developing, implementing and optimizing entrepreneurial strategies that balance the need to minimize risks with maintaining the flow of commerce. more >>>

 

 

 

William Marshall
William Marshall
William Marshall
 

Evan Wolff

Managing Director

Evan D. Wolff is a Managing Director at The Chertoff Group, a global security advisory firm that provides consulting, risk management and merger and acquisition (M&A) advisory services for clients in the security, defense and government services industries.  Mr. Wolff offers clients across our consulting and security services lines of business strategies and recommendations to better assess risk, develop appropriate mitigation plans, and further protect themselves from today's physical and cyber security threats.. more >>>

 

 

 

 

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Elizabeth Carter 
Richie Weiblinger
Richie Weiblinger
 

 

Davin Baker

Senior Director

Davin Baker joined The Chertoff Group after holding several business and technology leadership roles at top global cybersecurity companies including Blue Coat Systems, Solera Networks, and SafeNet. In these roles Mr. Baker exercised his technical and business acumen to identify unsolved market problems and deliver innovative solutions into the global Enterprise and Public Sector markets. more >>>

 

 

Elizabeth Carter 
Richie Weiblinger
Richie Weiblinger
 

 

Elizabeth Carter

Senior Director

Elizabeth Carter joined the Chertoff Group after serving as the Plan Manager for Weapons of Mass Destruction (WMD) for the New York City Office of Emergency Management, where she was responsible for the development of hazard-specific emergency plans to respond to Chemical, Biological, Radiological and Nuclear (CBRN) incidents. In this capacity, she worked closely with New York City agencies and other regional municipalities to foster interagency coordination and spearhead collaborative efforts to develop WMD playbooks and protocols. more >>>

 

 

Jason Mayer 
Katy Montgomery
Katy Montgomery
 

Jason Mayer

Senior Director 

Jason Mayer joins The Chertoff Group from the Central Intelligence Agency where he worked to identify and counter threats from our most dangerous adversaries.  Now at The Chertoff Group, he uses his in-depth understanding of today's security challenges to deliver solutions to help boardrooms and company leadership manage their risk in an increasingly dynamic security environment.   more >>>

 

 

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Ryan Hoffman
Ryan Hoffman
 

Ben Dower

Director

Ben Dower provides strategic consulting and M & A advsiory services to clients across the national security sector. Prior to joining The Chertoff Group, Mr. Dower was an Associate at BB&T Capital Markets  | Windsor Group, the Defense and Government Services investment banking group of BB&T Corporation. While at BB&T Capital Markets | Windsor Group, Mr. Dower advised companies serving the Department of Defense, Department of Homeland Security, and intelligence community in mergers and acquisitions transactions. more >>

 

 

Ryan Hoffman
Ryan Hoffman
 

Ryan Hoffman

Director

Ryan Hoffman serves as a Director at The Chertoff Group in the firm’s M&A Advisory practice. With nine years of exclusive focus in the Defense, Technology, Security, and Government Services industry, Mr. Hoffman bings extensive investment banking experience in both private and public sell-side assignments, corporate divestitures, equity raises, and buy-side transactions for clients operating in the defense, intelligence, C4ISR, and government technology markets. more >>>

 

 

David London 
Ryan Hoffman
Ryan Hoffman
 

David London

Director

David London is a Director at The Chertoff Group, where he focuses on business continuity, cyber risk management, incident response planning and cyber simulations for our clients.  As a member of the Security Services practice area, David works with clients to help improve security operations and build effective enterprise-wide response capabilities that can help an organization recover from all types of hazards and crisis events.  He has led several high-profile strategic cybersecurity simulations and exercises, which have addressed the evolving cyber threat environment, the necessary elements to ensure a robust crisis management program, and ways to improve private-public sector coordination across critical infrastructure. more >>

 

Allison Williams  
Jeannette Smith
Jeannette Smith
 

Alison Williams

Director

Alison Williams joined The Chertoff Group in 2012 after serving as the Transportation Security Administration's representative to U.S. Africa Command (AFRICOM), one of the U.S. Department of Defense's geographical combatant commands.  As one of approximately forty non-Department of Defense officials at AFRICOM,  more >>>

 

 

 

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Emily Basta 
Veronica Gilbert
Veronica Gilbert
 

Emily Basta

Deputy Director of Operations

Emily Basta began work at The Chertoff Group in August of 2012. Ms. Basta provides high-quality support and professionalism in her day-to-day responsibilities which include complex planning and organization, a timely response to requests for information, and constant communication to ensure the appropriate level of coordination for important tasks. more >>>

Marjorie Chelius
Marjorie Chelius
Marjorie Chelius
 

Marjorie Chelius

Senior Associate

As a Senior Associate at The Chertoff Group, Marjorie Chelius uses her research and analytical skills to help clients achieve their growth objectives. While Ms. Chelius is involved in a wide range of projects that deliver strategic support to clients both domestically and internationally, she focuses her work in the Business Strategy practice area for The Chertoff Group, helping companies develop organic and inorganic growth strategies. more >>>

 

Anna Lusthoff
Ryan Hoffman
Ryan Hoffman
 

Anna Lusthoff

Deputy Director for Strategic Communications

As the Deputy Director for Strategic Communications at The Chertoff Group, Anna Lusthoff uses her strategic communications and analytical skills to create and execute thoughtful communication plans to help both clients and The Chertoff Group achieve their core objectives.   more >>

 

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Ryan Hoffman
Ryan Hoffman
 

Corey Jentry

Associate

Corey Jentry is an associate with The Chertoff Group, operating out of the firm’s London office. In this role, Mr. Jentry is responsible for supporting the firm’s consulting client engagements with a focus on research, analysis and preparation of client deliverables.   more >>

   

Zach Miller  
Ryan Hoffman
Ryan Hoffman
 

Zack Miller

Associate

As an Associate at The Chertoff Group, Zack Miller provides strategic advisory services to clients ranging from multinational corporations and private equity funds to venture-backed technology and cybersecurity companies. Leveraging strong research and analytic capabilities, Mr. Miller helps clients calibrate strategy, evaluate new markets and investment opportunities, optimize business development, and achieve growth objectives.    more >>

 

Brendan Mulroy 
Ryan Hoffman
Ryan Hoffman
 

Brendan Mulroy

Associate

As an Associate at The Chertoff Group, Brendan Mulroy supports both the Security Services and Strategic Consulting lines of business through his knowledge and experience with physical security and risk management.   more >>

 

Alan Wehler  
Ryan Hoffman
Ryan Hoffman
 

Jensen Vessels

Associate

Jensen Vessels is an Associate at The Chertoff Group in the firm’s M&A Advisory practice. Prior to joining The Chertoff Group, Mr. Vessels served as an Associate at Aronson Capital Partners where he advised on more than 15 M&A engagements in the defense and government services market. more >>

Alan Wehler  
Ryan Hoffman
Ryan Hoffman
 

Alan Wehler

Associate

At The Chertoff Group, Alan Wehler utilizes his research and analytical skills to help clients achieve their strategic objectives through an informed understanding of the national security landscape.    more >>

 

 

 

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James Anderson 
Marjorie Chelius
Marjorie Chelius
 

James Anderson

Analyst

James Anderson is an Analyst with The Chertoff Group, where he provides merger and acquisition (M&A) advisory services to clients across the national security sector. Prior to joining The Chertoff Group, Mr. Anderson worked as an intern in the New York offices of Deutsche Bank’s Leveraged Finance Group. more >>>

 

 

 

Zach Miller  
Ryan Hoffman
Ryan Hoffman
 

Paul G. Doherty

Analyst

Paul Doherty is an Analyst with The Chertoff Group, where he provides strategic advisory services to companies in the security and defense sectors.  Prior to joining The Chertoff Group, Mr. Doherty worked as Special Assistant to the CEO at the software company VidSys, where he helped streamline core business processes for a federally registered small business in the national security sector.  more >>

 

 

Zach Miller  
Ryan Hoffman
Ryan Hoffman
 

Randall Drumheller

Analyst

Randall Drumheller is an Analyst with The Chertoff Group, where he provides merger and acquisition (M&A) advisory services to clients across the national security sector.  Prior to joining The Chertoff Group, Mr. Drumheller worked as an analyst at Kekst and Company, a strategic communications consultancy based in New York.  more >>

 

Zach Miller  
Ryan Hoffman
Ryan Hoffman
 

Kelly McRaven

Analyst

Kelly McRaven is an Analyst with The Chertoff Group, where she supports both the Security Services and Strategic Consulting lines of business.  Prior to joining The Chertoff Group, Ms. McRaven worked as an intern in the Office of the Under Secretary of Defense for Policy at the U.S. Department of Defense, the Defense Intelligence Agency, and the House Armed Services Committee.   more >>

 

 

 

 

 

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Shelly Achaibar 
Veronica Gilbert
Veronica Gilbert
 

Shelly Achaibar

New York Office Manager 

Shelly Achaibar uses her global experience and expertise from the Financial Services industries, Bio-tech and Emerging Markets to cultivate and maintain internal operation processes, provide scheduling and manage administrative support, and lead the overall team support for the firm. more >>>

 

 

Liz Bogie 

Veronica GilbertVeronica Gilbert

 

Liz Bogie

Special Assistant

Liz Bogie joined The Chertoff Group in October 2013, where she serves as a Special Assistant to Ms. Debbie Eng, Mr. Adam Isles, Mr. Jason Kaufman, Mr. Mark Weatherford, and Mr. Greg Hill. In this role, Mrs. Bogie handles all scheduling requests and administrative logistics for the Principals and Directors she supports. more >>>

 

 
Veronica Gilbert
Veronica Gilbert
 

Casey Determan

Special Assistant

Casey Determan joined The Chertoff Group in July 2014, where he serves as Special Assistant to General Michael V. Hayden, The Honorable Charles E. Allen, and Mr. William P. Marshall. Prior to joining The Chertoff Group, Mr. Determan gained valuable experience on Capitol Hill serving with Congressman Doc Hastings (R-WA) and Congresswoman Susan W. Brooks (R-IN) as well as with the House Committee on Homeland Security. more >>

 

 
Veronica Gilbert
Veronica Gilbert
 

Emily Dumont

Special Assistant

Emily Dumont joined The Chertoff Group in 2014, and currently serves as Special Assistant to Secretary Michael Chertoff and Jayson Ahern. In this role, Ms. Dumont provides high-quality support with complex planning and administrative logistics. more >>

 

Veronica Gilbert
Veronica Gilbert
 

Veronica Gilbert

Senior Financial Accountant

Veronica Gilbert joined The Chertoff Group in July of 2011 as the Senior Financial Accountant where she oversees the internal accounting functions of the company.  She has extensive experience working in this financial capacity at manufacturing firms, banking institutions, and franchise corporations. more >>>

 

 

 

 

Sarah Miller  
Veronica Gilbert
Veronica Gilbert
 

Sarah Miller

Special Assistant

Sarah Miller joined The Chertoff Group in March 2013 as Special Assistant to Chertoff Group Co-Founder Chad Sweet.  A graduate of Old Dominion University’s College of Business and Public Administration, her degree in marketing has served her in both the private and public sector.  more >>>

 

 

security services

“Our principals earned their reputations through direct operational responsibility and demonstrating successful results. By applying that same dedicated ‘hands on’ approach, we are now helping our clients achieve their objectives.”

Michael Chertoff