IGEL Board of Directors

Klaus Oestermann is the Chief Executive Officer of IGEL Technology – The Secure Endpoint OS for Now & Next. Since joining IGEL in 2023, Klaus has been the driving force behind the significant growth and repositioning the company as a key leader in endpoint security with the IGEL Preventative Security Model™.

Klaus is known for his exceptional ability to combine strong team-building skills with financial acumen, along with expertise in go-to-market (GTM) strategy, product positioning, product development, and strategic partnerships. Prior to his role at IGEL, Klaus served as the CEO of Bluerock Systems. He is perhaps best known for his 18-year tenure at Citrix Systems, where he held various key executive roles. For the past 11 years, he served as the company’s Senior Vice President and General Manager of the Networking Division, where he played a crucial role in shaping the company’s strategic direction and enhancing its market position. Klaus’s career began at IBM, where he built a strong foundation in technology, before going on to serve as the CEO of CMA Systems.

In addition to his executive roles, Klaus has been an active figure in the Silicon Valley startup ecosystem, contributing as an investor, advisor, and board member to several breakthrough innovation companies. His involvement spans a diverse range of innovative firms, including The Fabric Venture Funds, Mesh7 (VMware), Iotium (View), Zigna (eSoft), Rancher Labs (SUSE), Spanugo (IBM), CloudVolumes (VMware), and Cotendo (Akamai).

Maner has decades of experience in the EUC and cloud computing industry. At Nutanix, as the Chief Commercial Officer, he has been instrumental in the hybrid multi cloud transition of the company as the market leader. He currently leads global go-to-market ecosystems, business, and corporate development efforts. Before joining Nutanix, he served as Chairman and CEO at Nexenta Systems, Inc., a leader in open source-based Software Defined Data Centre, leading the organization from its open-source community-centric startup state to hybrid cloud and high-performance computing enterprise market leadership through its acquisition by DataDirect Networks (DDN) in May 2019.

Prior to Nexenta, he was the President and CEO at Wyse Technology, the inventor of Cloud Client Computing segment one of the leading virtual desktop computing pioneers acquired by Dell in 2012. He also held executive roles at Dell, CA Technologies, IBM, and Sterling Software. Tarkan serves and has served on the boards of several market leading organizations including Invicti, Teradici, CloudCheckr, Wheels, and leading non-profit organizations and associations in Silicon Valley, including Silicon Valley Leadership Group. Tarkan holds a Bachelor of Science degree in engineering management from Istanbul Technical University, an MBA from Midwestern State University and an AMP from Harvard Business School.

In his role as Executive Chairman, Bill Veghte brings to IGEL decades of experience in operating system development and broader commercial and technical leadership in software. Bill managed the engineering and ultimately the business of Windows across a variety of versions and instantiations from from the client to the server to embedded versions as a program manager, as a General Manager and ultimately as an SVP. He led Microsoft’s North American Sales, Services and Marketing. He was EVP of HP’s Enterprise business and was COO for HP. He has advised and served a variety of early and late stage companies from board chair to CEO advisor from Xero to Mural, SurveyMonkey to Turbonomic, View to Venafi. He is founder and managing partner of AthenePartners that partners with CEOs like Jed and leading investors like TA to transform companies and industries. Bill holds a bachelor’s degree from Harvard University.

John is a Managing Director at TA Associates with more than 24 years of experience in the private equity industry. During his tenure, he played a key role in the firm’s growth, including over six years focused on expanding TA’s London office. John has sponsored 24 investments, including 12 international deals, and has been involved in over 20 investments totaling more than $2.5 billion in equity capital. His expertise spans sectors such as financial technology, software, internet, and medical devices, with investments across Europe, India, the U.S., and Asia.

In addition to his investment work, John served as co-head of TA’s North America Technology Group and was a member of the firm’s Management, Portfolio, and Core Investment Committees. As an active partner, he contributed to TA’s strategic direction and investment decisions. Known for identifying high-growth opportunities, John has built a reputation for collaborating closely with management teams to drive long-term value.

He holds a BS degree, with Distinction, in Mathematics from Yale University.

Stefan is a Director at TA Associates, where he focuses on investments in technology and financial services companies across the EMEA region. Additionally, he leads TA’s investment efforts in German-speaking countries, spanning multiple sectors. With a strong track record in the private equity space, Stefan has been instrumental in identifying and executing investments that drive growth and create lasting value.

Stefan holds a BA in Business Administration from the University of St. Gallen (HSG).

Mr Gloge is a pillar of the international endpoint community. After starting with Melchers in 1988, he was made General Manager of their NetCom division, which in 2001 became the independent daughter company, IGEL Technology GmbH. He was one of the founders of the “European Endpoint Forum” in 2002 and later chairman of the working group “Endpoint & Server Based Computing” in Germany’s influential IT industry association BITKOM, where he is still a member of the executive board. A native of North Germany, Mr. Gloge originally studied Computing at different institutions.

Nicolas Helms is Executive Partner at Melchers Group, parent company of IGEL Technology GmbH. Originally from Bremen, he has worked in six different countries on four continents, where he has gained extensive experience in international business. In 1994 he was named Director of Melchers Hong Kong. Mr. Helms has been Managing Director at C. Melchers GmbH & Co. KG since 2000. He was one of two directors who founded IGEL Technology GmbH as a Melchers subsidiary in 2001. Nicolas Helms holds a Bachelor of Business Administration (BBA) from the University of Zurich, Switzerland, and a Master of Business Administration (MBA) from Boston University, USA.