ZeroStack's mission is to empower IT organizations to scale beyond human constraints

Executive Team

David Greene CEO and Board Member

David leads ZeroStack’s innovative team and directs corporate strategy. He has nearly 30 years’ experience leading marketing, product management, and business development in public and private technology companies. He previously served as senior vice president and chief marketing officer at cloud networking leader Aerohive Networks. Prior to that he held CMO and vice president positions with Riverbed Technology, BMC Software, and Active Reasoning.

David holds a B.A. in Architecture and a B.A. in Computer Science from the University of California, Berkeley.


Ajay Gulati Co-Founder, CTO and Board Member

Ajay shares responsibility for driving ZeroStack’s product innovation, bringing to life his thought leadership in systems infrastructures and virtualization. Ajay was a senior architect and R&D lead at VMware where he designed flagship products including Storage I/O control, Storage DRS and DRS. He has been recognized as a prolific inventor by his peers and has more than a dozen patents to his name. Ajay has consulted with multiple startups including Nimble Storage and Velocloud Networks.

Ajay has a Ph.D. from Rice University and a B.S. from IIT Kharagpur.

Steve Garrison - Marketing

Steve Garrison Marketing & Business Development

Steve leads go-to-market, market creation experience and brand development strategies at ZeroStack, and is a seasoned Information Technology executive with nearly 20 years of technology marketing experience. Steve has held global marketing positions at several public and venture-backed companies, including Pica8, Infoblox (NYSE: BLOX) , Force10 Networks (acquired by Dell, Inc.) and Riverstone Networks (acquired by Alcatel-Lucent). He holds an MS in Materials Science Engineering from MIT, and a BS in Ceramic Science and Physics from Alfred University.

Michael Lin Product Management

Michael is responsible for Product Management at ZeroStack. He has over 20 years’ product experience in the IT industry. He previously held product management positions at VMware, Cisco Systems, Seagate, and several startups, focusing on developing innovative technology to help solve customer’ business and operational issues. Michael has a B.S. in Electrical Engineering from the University of Texas at Austin, an M.S in Computer Science from San Jose State University, and an MBA from Santa Clara University.

Joel Norton Sales Asia

Joel leads ZeroStack’s Asia Pacific team and business operations from Singapore. He has 20+ years Asia Pacific experience with industry leaders (HDS, Sun, IBM) and start-up initiatives (DDN, Infinidat, 3Par, EqualLogic). Joel’s career has been in early & mid-term business development and management spanning a broad spectrum of IT solutions & services in roles from Sales Executive to Regional VP. Joel has a Master of Management and a Post Graduate Diploma in Business Information from Massey University, New Zealand.

Arvind Pandey Service and Support

Arvind has been instrumental in the creation and leadership of the support and customer success team, which handles 24/7 monitoring and pre-sales, post-sales, and proactive support services. He has 20+ years of IT and support experience with industry leaders such as Wipro Infotech, Sun Microsystems, and Cisco Systems. Arvind earned his MBA from the University of Phoenix and holds a B.E. in Electronics from SVNIT-Surat in India.

Board Members


Ashu Garg

General Partner, Foundation Capital

Ashu Garg is a General Partner at Foundation Capital, focusing on startups in MarTech, Analytics, and SaaS applications. He currently serves on the board of directors for a number of companies including TubeMogul, Localytics, and Conviva.

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Before joining Foundation Capital in 2008, Ashu was the General Manager for Microsoft’s On-line Advertising business.  Ashu also worked for McKinsey & Company, Cadence Design Systems, and Unilever; he founded TringTring.com, a local search engine based in India.  Ashu has lived in India, Nigeria, the Sudan, and today makes his home in California with his wife, Pooja, and their two sons.  Find him on LinkedIn (www.linkedin.com/in/ashugargvc), and connect with him on Twitter (@ashugarg).


Mark Leslie

Board member

Mark Leslie is currently the managing director of Leslie Ventures, a private investment company. He is also a Lecturer in Management at Stanford Graduate School of Business. Mark Leslie was the founding Chairman and CEO of Veritas Software.

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During his tenure as CEO, the company went from 12 employees to 6,000 employees deployed globally, and from a revenue base of $95,000 per year to $1,500,000,000 per year.  In 2000, Veritas was the tenth largest independent software company by revenue, third largest by market capitalization, and achieved the distinction of becoming a Fortune 1000 company. From 1980 until 1990, he served as president and chief executive officer of two Silicon Valley high- tech startup companies. Mark currently serves on the board of Model N (NYSE: MODN), and a number of privately held high-technology corporations including Interana, Liquid Robotics, PernixData, StratoScale, Sugar CRM, ZeroStack and Zerto. Mark received a Bachelor of Arts degree in physics and mathematics from New York University in 1966 and completed Harvard Business School’s program for management development in 1980.


Shirish Sathaye

Board member

Shirish Sathaye is a General Partner at Formation 8.  He focuses on investments in next-generation enterprise software, cloud-based software, wireless and wireline networking, storage infrastructure and systems.

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Prior to Formation 8, Shirish was a General Partner at Khosla Ventures from 2010 to 2013 and a General Partner at Matrix Partners from 2001 to 2010.  Shirish’s prior investments include Aruba Networks (NASDAQ:ARUN), Nutanix, Grandis (acquired by Samsung), Solidcore Systems (acquired by McAfee), Panzura, Kumu Networks, and Vectra Networks.

Shirish’s investing career was preceded by a long operating career at technology companies.  He helped build two venture-backed companies, FORE Systems and Alteon Websystems, and led the design and development of their core products.  Both companies pioneered important new product categories and had very successful IPOs.  Shirish ran the Engineering Group at FORE Systems, a pioneer in ATM Switched Networks.  FORE went public in 1994 and was eventually sold to Marconi for $4 billion.  In 1997 Shirish joined Alteon Websystems, which created the server-load-balancer product category, as its VP of Engineering and later, its CTO.  Alteon went public in 1999 and was acquired by Nortel for $7.8 billion.  Shirish began his career at Digital Equipment Corporation first in the Semiconductor group and then in the Network Architecture & Software Group.

Shirish has a Ph.D in Electrical & Computer Engineering from Carnegie Mellon University, an MSEE from Virginia Tech, and a Bachelors Degree in Electronics Engineering from IIT-BHU, Varanasi, India.

Investors and Advisors

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Mohit Aron

Founder and CEO, Cohesity

Mohit Aron is the Founder and CEO of Cohesity Inc. He is regarded as the pioneer of hyper-convergence, the first architecture to converge compute and storage to simplify virtualization.

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Aron founded the infrastructure company Nutanix to bring hyper-convergence to market and served as its CTO before leaving to build Cohesity. Mohit worked as a Staff Engineer at Google from 2003 to 2007, where he helped design the company’s innovative Google File System. He also served as Architect at AsterData, a leading big data analytics company that was later acquired by Teradata. He holds a Ph.D. in Computer Science from Rice University.


Justin Barney

President and CEO, ScaleArc

As President and Chief Executive Officer, Justin is responsible for ScaleArc’s day-to-day operations and leading the company’s go-to-market strategy. Justin also served as ScaleArc’s President and COO from Dec 2011 to Sept 2013.

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He served as vice president of sales at Citrix Systems and as director of sales at NetScaler. He received an MBA from the Wharton School at the University of Pennsylvania and an undergraduate degree from the University of Colorado at Boulder. Justin also served in the U.S. Marine Corps Reserves from 1992-1998.


Mike Dvorkin

Co-founder, Insieme Networks

Mike Dvorkin is a recognized thought leader in policy driven automation and operations. Mike’s work focus is on policy abstraction models and intent-based nonlinear automation methods applied to all aspects of infrastructure, applications and operations.

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He is a founder of Noiro project at Cisco focusing on bringing policy abstraction to open source networking, containers and storage. Prior to Noiro Mike was a co-founder and chief scientist of Insieme Networks where he was responsible for conceptualization of the policy layer that is now part of Cisco ACI/APIC. Before Insieme, as part of the early engineering team at Nuova Systems, he was the architect behind the management and control plane of UCS server platform, the first intent-defined server platform. Prior to Nuova Mike held a number senior technical positions at infrastructure startups. Mike holds a degree in Computer Science from University of Illinois in Urbana/Champaign.


Marina Levinson

Founder and CEO, CIO Advisory Group, LLC; Partner, Benhamou Global Ventures

Marina Levinson has more than 25 years of corporate leadership experience leading all aspects of IT and business process transformation for both B2B and B2C enterprises, including 12+ years as a Global CIO of fast-growing high tech companies.

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She has an exceptional background advising CEOs and boards of directors on digital enterprise strategies, cyber security and on building high performance technology teams. Marina’s experience includes global large-scale implementations of enterprise analytics, eCommerce, and CRM and ERP solutions, on-premise and in the cloud. She has deep expertise integrating M&As and spinning off companies.


Umesh Maheshwari

Co-founder and CTO, Nimble Storage

Umesh Maheshwari has over 20 years of experience building networked storage systems. Before founding Nimble Storage, he was a technical director at Data Domain, responsible for the core areas of deduplication and clustering.

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As an early engineer at Data Domain, he built significant parts of the Data Domain file system and replication protocol. Previously, Umesh was at Zambeel, a maker of scalable file servers, where he was responsible for clusterizing the metadata service and for automating the cluster network configuration. Before Zambeel, he was at InterTrust, a pioneer in digital rights management, where he built a patented tamper-resistant database system. Umesh holds a PhD in computer science from MIT, where he researched storage management in distributed transactional systems. He also holds a BTech in computer science from IIT Delhi, where he received the President’s Gold Medal as the top graduating student.

Dan Nimble

Denis Murphy

VP of Worldwide Sales, Nimble Storage

Denis is responsible for leading the company’s global sales operations and team with a goal to increase engagement and customer acquisition across the enterprise. Denis has a 25-year track record of success in enterprise and channel sales, along with experience spearheading industry-leading sales organizations in hyper growth companies.

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Prior to joining Nimble, Denis held sales leadership positions in storage and network infrastructure companies, such as EMC, Mercury Interactive, Riverbed Technology and Nicira. Denis holds a B.S. degree in electrical engineering from the University of Massachusetts, Amherst, and a Masters of business administration from American Graduate School of International Management, Thunderbird.


Adit Singh

Partner, Foundation Capital

Adit Singh joined Foundation Capital as a Partner in August 2013. His areas of interest span enterprise IT infrastructure, systems, software and services. He has invested in companies in cloud computing, data center, networking, management, security and virtualization.

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As Partner at Foundation Capital, Singh focuses on identifying and investing in promising startups specializing in enterprise IT infrastructure, systems, software and services. His background includes: product management, marketing and engineering in startups and in large companies. Prior to Foundation, Adit was an investor at Comcast Ventures. Adit earned an MBA from The University of Chicago, Booth School of Business. He has a Master’s in Electrical Engineering and Bachelor’s in Computer Engineering from the University of Illinois at Urbana-Champaign. Adit enjoys Crossfit, snowboarding, rescuing german shepherds and traveling to one new country every year.


Carl Waldspurger

Independent Consultant, Ex-Principal Engineer, VMware

Carl Waldspurger is an independent consultant, working primarily with early-stage startups.  For over a decade, he was responsible for core resource management and virtualization technologies at VMware.

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Carl led the design and implementation of processor scheduling and memory management for the ESX hypervisor, and was the architect for VMware’s Distributed Resource Scheduler (DRS).  Prior to VMware, he was a researcher at the DEC Systems Research Center.  Carl holds a Ph.D. in computer science from MIT.