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To empower and protect how people work and connect

About Us

Appgate is the secure access company that provides cybersecurity solutions for people, devices and systems based on the principles of Zero Trust security. Through a set of differentiated cloud and hybrid security products, Appgate enables enterprises to easily and effectively shield against cyber threats. Appgate protects more than 600 organizations across the government, the Fortune 100, global businesses and financial institutions.

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SEC Filings

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Our Team

Barry Field, Chief Executive Officer

Barry Field has 30 years of experience in enterprise technology and more than 10 in cybersecurity. Previously, as the leader of U.S. sales for Terremark, he transformed the company into a leader in cloud computing with revenues topping $360M. The company was acquired by Verizon for $2B and Field became SVP of Worldwide Sales responsible for Verizon’s cloud computing and cybersecurity sales and services.

In 2013 he left Verizon to become a partner at Medina Capital, a private equity firm investing in high-growth cybersecurity software companies and a founding member of Cyxtera. Field sourced and led the acquisition of Cryptzone, a Sweden-based technology firm that was developing a breakthrough software-defined perimeter (SDP) technology and later became CEO. Field transitioned Cryptzone headquarters from Sweden to the U.S. and built out key functions including product management, marketing, operations and customer success. In 2017, Cryptzone was part of a multi-acquisition deal that formed Cyxtera, a secure infrastructure company bringing together retail colocation and security. Field became Chief Revenue Officer of Cyxtera and immersed himself into the burgeoning Zero Trust security movement. He was an early advocate of the strategy and led the company’s efforts to drive education and awareness about the limitations of legacy security technologies, like VPNs, in favor of a modern approach grounded in Zero Trust principles.

On December 31, 2019, Appgate was spun out of Cyxtera to become a standalone cybersecurity company focused on capturing market share in the Zero Trust segment and creating the industry-leading secure access solution, Appgate SDP.

Jawahar Sivasankaran, President and Chief Operating Officer

Jawahar Sivasankaran leads Appgate’s growth strategy and oversees go-to-market business operations, including sales, marketing, professional services and customer success. With more than 23 years of experience in cybersecurity sales and technology, Sivasankaran brings with him a wealth of relevant experience in Zero Trust and a proven track record of transformative leadership in large security businesses, with a focus on scaling SaaS-based offerings.

Prior to joining Appgate, Sivasankaran led global security sales at Splunk, provider of the Data-to-Everything Platform, with strong leadership in the security market. He drew on his experience in sales, consulting, business development and products to drive growth for the company’s security business. Before his Splunk tenure, Sivasankaran held various senior positions at security giant Cisco. There he was responsible for leading global sales and business development for the security business through managed security providers, strategic partners, and global alliances. His previous roles in Cisco security sales include serving as the global Field CTO for the $2B+ security business and leading global GTM strategy and business development. At Cisco, he also held strong consulting, product and technical leadership roles, including serving as a Distinguished Engineer.

Alberto Arango, Chief Revenue Officer

Alberto Arango is an accomplished cybersecurity sales executive with a strong history of building world-class teams for industry-leading companies that deliver record revenue growth for enterprise customers across markets. He previously served as SVP of Cybersecurity and Anti-Fraud solutions at Appgate, where he led the company to its highest performing period of revenue growth. Prior to that, Arango has served in sales leadership positions where he has had full accountability for revenue, profit, service delivery and client satisfaction.

Before joining Appgate, Arango led the global sales efforts for Easy Solutions, which resulted in the company being acquired by Cyxtera in 2017. Prior to Easy Solutions, Alberto led sales at British Telecom as its Vice President of Sales for the Southern US where he developed the top performing sales team in the company. This achievement capped off four years of consistently leading sales projections while directing an industrious sales force with an outstanding customer satisfaction rate. Prior to BT, he led sales in Latin America for Internet Security Systems, which was acquired by IBM in 2006. Arango holds a B.S. in Marketing from Louisiana State University and a Masters of Business Administration in International Business from Mercer University.

Rene Rodriguez, Chief Financial Officer

Rene Rodriguez has more than 20 years of experience as a finance executive with expertise in managing financial operations, capital markets, investor relations, financial analysis, and mergers and acquisitions. Immediately prior to Appgate’s spin-out, Rodriguez was the CFO of Cyxtera since May 2017.

Since 2011, Rodriguez has also served as a Partner and the CFO of Medina Capital, a private equity firm investing in high-growth cybersecurity software companies and a founding member of Cyxtera. In that role, Rodriguez focuses on evaluating potential investments, fundraising, fund administration and financial guidance across the firm’s portfolio.

Rodriguez served in positions of increasing seniority at Terremark from 2005 until June 2011, most recently as Vice President of Financial Planning. In that role, he was responsible for the reporting of the financial and operational results of Terremark and its subsidiaries to its executive team and the investor community.

Prior to joining Terremark, Rodriguez held various positions at the Burger King Corporation focusing on worldwide valuation, process improvement, investment analysis and international fraud audits. Rodriguez started his professional career as part of the assurance practice at BDO Seidman LLP focusing on the firm’s financial services, technology, hospitality and aviation clients in South Florida, the Caribbean and Central America.

Rodriguez received his bachelor’s in Business Administration from the University of Notre Dame and his master’s in Business Administration from the University of Miami.

Julie Preiss, Chief Marketing Officer

Julie Preiss has nearly a decade of cybersecurity marketing expertise. She has led marketing for high growth stage companies transitioning from start-up to exit. Her background includes creating and executing strategies that increase brand awareness, generate leads, create analyst champions and provide go-to expert resources for the media.

Preiss led communications at Cyxtera prior to the company spinning-off the Appgate business. Previous roles include head of marketing at Rsam, a GRC and security operations SaaS provider; Damballa, an advanced threat protection provider; and Dell Secureworks, the market leader in managed security services.

Preiss earned a BA in Communications from the University of Georgia. She has served as marketing mentor at the Advanced Technology Development Center and has won numerous industry marketing awards.

Jeff Nord, Chief of Operations

Jeffrey Nord is Chief of Operations for Appgate. Prior to the firm’s spin-out, Jeff was the SVP of Service Delivery for Cyxtera’s colocation business.

Before joining Cyxtera, Nord held roles at Verizon, where he led the integration of Terremark and Verizon Business Cloud and Managed Services business units into a single, global operations organization. His team of more than 1,800 employees were responsible for Service Delivery, Customer Support, Infrastructure Engineering, and Change Management across Verizon’s broad portfolio of services.

Prior to Verizon, Nord led the Infrastructure and Service Delivery organizations for Terremark, which included Infrastructure Engineering, 24x7 Customer Support, Professional Services, Managed Security, and Implementation.

Before his time at Terremark, Nord was with SAVVIS, where he was responsible for Service Delivery. During his nine years at SAVVIS, Nord lived and worked in Singapore and Reading, England.

Kurt Glazemakers, Chief Technology Officer

Kurt Glazemakers is responsible for defining the strategy, development and roadmap of the next generation of Appgate's flagship Software-Defined Perimeter solution. Glazemakers was the independent technical expert within the Medina Capital investment team that exercised due diligence prior to the acquisition of Cryptzone in April 2014.

Glazemakers is renowned for his extensive knowledge of software development, especially in the Software-Defined network and storage area. Prior to joining Appgate, he served as CTO of CloudFounders, a developer of advanced private cloud technologies for IT as a service (ITaaS) solutions.

He also served as Terremark’s CTO Europe (now part of Verizon), where he was responsible for the development of Enterprise Cloud. Throughout his career, Glazemakers has focused on the development of innovative solutions that increase the availability, security and scalability of mission-critical infrastructures. He holds a Master of Engineering, Telecommunications and Computer Networks from University Ghent in Belgium.

Jason Garbis, Chief Product Officer

Jason Garbis is Chief Product Officer for Appgate, responsible for the company's security product strategy and product management, and held a similar leadership role at Cryptzone prior to its acquisition by Appgate/Cyxtera. Garbis is also co-chair of the SDP Zero Trust Working Group at the Cloud Security Alliance, where he helps lead research and publication initiatives.

Garbis has over 30 years of product management, engineering, and consulting experience at security and technology firms, including RSA, where he focused on identity management and governance products. Garbis hold a CISSP certification, has a Bachelor’s degree in Computer Science from Cornell University, a High-Technology MBA from Northeastern University, and is a published author. He is also co-chair of the Boston chapter of the Cloud Security Alliance.

Jeremy M. Dale, General Counsel

Jeremy M. Dale currently serves as General Counsel and Secretary of Appgate. Previously, Mr. Dale was Associate General Counsel of Cyxtera from May 2017 to January 2020, and Associate General Counsel of 3Cinteractive from July 2014 to April 2017. Prior to that, Mr. Dale was a corporate and securities associate at Greenberg Traurig, LLP from September 2010 to June 2014. He received his B.S. in Finance, B.A. in Economics, and M.S. in Finance from the University of Florida, and his Juris Doctorate from the University of Virginia.

Carolina Suarez-Aguiar, VP, HR Operations

Carolina Suarez-Aguiar leads the human resources team with responsibility over talent acquisition, employee development, benefits, compensation and diversity. Having been in HR within the technology industry for 14 years, Suarez-Aguiar brings experience in developing competitive employee benefits programs, management of stock-based compensation and employee relations.

As Vice President of HR Operations at Cyxtera, Suarez-Aguiar led the global benefits program as well as serving as the HR operations leader for the Cybersecurity business unit handling employee relations, performance management, and organizational planning. Prior to Cyxtera, she ran the HR function at Easy Solutions. Suarez-Aguiar started her professional career at Terremark where she served in positions of increasing seniority in employee benefits. When Terremark was acquired by Verizon in 2011, she led the process to transition all employee benefits including managing employee communication and benefits education. At Verizon, she served as the HR Business Partner for the Colocation Business unit which involved consulting with business leaders to provide creative solutions to HR challenges surrounding compensation, employee relations, and organizational development.

Carolina received her BS in Business Administration with a concentration in Human Resource Management and her MBA from Florida International University.

Mike Lopez, VP & General Manager, Fraud Protection

Mike Lopez is Vice President and General Manager of Appgate's Fraud Protection offering. With more than 15 years of banking industry experience with a focus in Fraud and Anti-money laundering operations, Lopez has developed a deep understanding of the fraud landscape and the effective measures institutions should take to mitigate fraud.

Before joining Appgate, Lopez was Vice President of Global Operations for Cyxtera‘s fraud offering. His team of over 125 employees were responsible for Service Delivery, Customer Support, Infrastructure Management, and SOC Operations.

Prior to Cyxtera, Lopez led the Service Delivery organization for Easy Solutions, which included Customer Support, SOC Operations, Professional Services, and Risk and Compliance.

Lopez previously served as the Chief Information Officer for Marquis Bank, and as a Bank Secrecy Act/Anti-Money Laundering Manager for Ocean Bank, both community banks based in Florida. He holds a degree in Information Technology from the University of Miami’s School of Engineering.

Dawn-Marie Vaughan, VP & General Manager, Threat Advisory Services

Dawn-Marie Vaughan is Vice President and General Manager of Appgate Threat Advisory Services, offering offense-focused security products, services and training. With over 15 years of experience in insider threat and cybersecurity consulting, Dawn-Marie is a demonstrated performer, innovator and leader in the security industry—successfully starting up and managing operations and professional services teams in both the commercial and Federal Government sectors.

Before joining Appgate, Dawn-Marie was Vice President of Integrated Operations for Cyxtera. Over the course of 3 years, Dawn-Marie was responsible for overseeing operations for Immunity, Brainspace, Compliance Sheriff and Total Fraud Protection product teams.

Prior to Cyxtera, Dawn-Marie was CEO of Springboard Services, a consulting firm providing insider threat investigations, business intelligence analysis, anti-money laundering and risk assessment consulting to Fortune 500 customers. Dawn-Marie has exemplified her expertise in a wide range of industries, including: financial services, healthcare, telecommunications, digital entertainment, retail, manufacturing, supply chain and transportation.

Dawn-Marie received her BS in International Finance, with a concentration in Economics, from Michigan State University. Dawn-Marie is an active member and supporter of the International Women in Technology and the Diana Initiative.

Ned Miller, SVP & General Manager, Appgate Federal Division

As Senior Vice President and General Manager for Appgate’s Federal division, Ned Miller directs go-to-market strategies, collaborates with the sales and technical teams to define and deliver Zero Trust solutions for public sector customers. An accomplished cyber security sales and technology executive with more than three decades of experience, Miller has a proven record of driving revenue in the Federal marketplace.

Prior to joining Appgate, Miller held senior leadership roles at some of the most recognized enterprise cybersecurity brands in the world, including at McAfee, Hewlett-Packard, and Symantec. In addition, he has held executive positions at several cyber security start-up companies, including Recourse, Foundstone, and Secure Elements. Miller is also recognized by the government and industry as a subject matter expert on the topics of security automation, information protection, cloud security, FedRAMP and DoD IL levels.

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