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Rohit De Souza

Rohit De Souza

CEO & President

Rohit De Souza serves as Chief Executive Officer. Rohit brings nearly 25 years of blue chip, strategic technology and change management experience to the role, having driven results at both large enterprise technology companies and smaller, early stage ventures in a global context. Prior to his appointment at Actian, Rohit held the President and acting CEO position at BeyondCore, where he refocused its go-to-market strategy and drove the acquisition of the company by Salesforce. Prior to BeyondCore, Rohit held multiple leadership positions at HP, including Vice President and General Manager for HP Software – Autonomy / IDOL and prior to that Vice President and General Manager for its Retail Publishing division, where he was responsible for the business’ exponential growth and established HP as a leader in worldwide retail photo and publishing. Rohit has held leadership roles at Siebel, Oracle, Booz Allen & Hamilton and Intel, where in each instance he contributed to the accelerated growth and market success of the firm. Rohit holds dual master’s degrees in engineering from the University of California at Berkeley and an undergraduate degree in engineering from Madras University in India.

Lewis Black

Lewis Black


Lewis is the SVP and Chief Financial Officer of Actian responsible for the company’s financial and capital management strategies, business planning, financial accounting, tax, treasury and investor relations.

Lewis brings 30 years of experience in the communications technology space with expertise in communications services, networking, communication hardware, enterprise software, cloud and SaaS businesses. Previously, Lewis was the General Manager of the Nexmo line of business in Vonage where he scaled the business significantly while integrating the business into Vonage. Prior to Vonage Lewis was the CFO of Nexmo where he played an important role in guiding the direction and driving the execution and was a key member of the team that sold the business to Vonage. Prior to Nexmo, Lewis has had broad finance and operational leadership experience in building, scaling and optimizing businesses globally in companies such as AT&T, Lucent technologies, Avaya and Citrix.

He is a certified accountant in the UK and graduated from Strathclyde University in Glasgow.


Raghu Chakravarthi

SVP - R&D &
Support Services

Raghu Chakravarthi is Senior Vice President of R&D and Support Services at Actian. He has global responsibilities for product, engineering and support services. Prior to Actian, Raghu was the GM of Teradata’s Analytics Platform business where he led database engineering and advanced analytics teams. Raghu has startup experience at Jolata and Jamcracker and was a senior executive at industry leaders including Hyperion, Oracle and Sabre.

Raghu is a seasoned executive with deep enterprise product and business expertise in data science, big data, cloud services and data integration. He is an Silicon Valley entrepreneur actively engaging in innovative technology communities including TiE and Big Data meetup.

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Vikas Mathur

VP - Strategy &
Avalanche GM

Vikas Mathur is Vice President of Strategy and General Manager for the Avalanche Cloud Data Warehouse business at Actian. He is responsible for shepherding Actian’s growth through the Avalanche platform as well as through our strategic partnership with HCL Technologies. Vikas is a passionate leader and brings over 20 years of large enterprise experience in creating revenue growth and driving operational change.

Prior to joining Actian, Vikas held multiple leadership roles at Hewlett Packard Enterprise (HPE), including leading business and pricing strategy for HPE Software, product management for HPE’s video analytics business, and shaping HPE’s corporate strategy around business portfolio and go-to-market development. Prior to HPE, Vikas was a management consultant at A.T. Kearney, and in product development at Sun Microsystems and Apple Computers. Vikas graduated with an MBA from Haas School of Business, University of California, Berkeley. He also holds a M.S. in Computer Engineering from University of Kentucky, Lexington, and a B.E. in Electronics Engineering from Punjab Engineering College, Chandigarh.

marc potter

Marc Potter


Marc Potter serves as Chief Revenue Officer for Actian. Marc has over 20 years of enterprise sales leadership experience in information technology. He is an inspirational sales leader that believes in leading from the front and working as a team. Most recently, Marc served as Vice President of Sales at Oracle Corporation, where he was responsible for the Management and Security organization that was focused on selling Cloud solutions. He has held strategic leadership roles at Cabletron Systems, Computer Associates, Dell, Quest Software and ObserveIT. His international leadership experience over the years includes serving as General Manager for Cabletron Systems in Germany, VP of Americas for Quest Software and VP of Global Sales for ObserveIT. Prior to joining Oracle, Marc worked at ObserveIT, where he built the sales organization, launched the global partner program and expanded international operations which resulted in over 200% growth. Prior to ObserveIT, Marc held senior-level positions at Quest Software which was later acquired by Dell, Computer Associates and Cabletron Systems serving in leadership roles selling to large enterprise accounts. Marc holds a BA from the University of New Hampshire and resides in Marietta Georgia.

Melissa Ribeiro

Melissa Ribeiro

Chief People Officer

Melissa Ribeiro is Chief People Officer at Actian. She has led global HR organizations in information technology, entertainment and the news industry, during tenures with Thomson Reuters, Yahoo, Opera MediaWorks and Deluxe Entertainment Group. In her previous role Melissa was the EVP of Human Resources at Deluxe Entertainment Group, a billion-dollar company in entertainment, post production and technology based in Los Angeles, where she led HR operations for this globally distributed organization.

She holds a Bachelor’s degree in Business Administration from UNOPAR – Universidade Norte do Paraná, Master’s degree in Business Administration and Management from UNESPAR – Universidade Estadual do Paraná and a PhD in Clinical Psychology from Argosy University in Georgia.


Jeff Veis


Jeff Veis is SVP, Marketing at Actian. He is responsible for product, solution, partner, brand and digital marketing initiatives on a global basis. Jeff has over 20 years of enterprise software marketing experience at high-growth companies. He conceived and founded the Liberty Alliance Project creating a global standard for federated digital identity. Prior to Actian, he held senior level positions at Hewlett Packard Enterprise Software’s Big Data Analytics and Information Management Group, SAP BusinessObjects, BEA Systems, Sun Microsystems, ActiveGrid and Booz-Allen. He holds a B.S. in Computer Science from Northwestern University and an MBA from the Kellogg School of Management at Northwestern University.

Pam Fowler

Pamela Fowler

VP - Global Support & Managed Services

Pamela Fowler is currently Vice President, Global Support and Managed Services managing the Global Enterprise Support Services delivery team at Actian Corporation. Pamela is responsible for the entire supporting infrastructure, strategic direction and tactical execution of the global support and managed services organizations. She controls of all aspects of the global support delivery model, policies, procedures and infrastructure, and provides strategic leadership by representing the ‘voice of the customer’ to management across all functional areas within Actian.

Pamela has been at Actian since November of 2005 when it was divested as a new entity from CA. Previously, Pamela held several leadership roles within CA heading technical support and was instrumental in driving CA’s supporting operations. Prior to CA Pamela was the Vice President of Technical Support for the enterprise and database management software at Platinum Technology, Inc.

Pamela holds both a bachelor’s degree in Computer Information Systems from DeVry Institute of Technology and a master’s degree in Business Administration from Dominican University.

Volker John

Volker John

VP - Engineering

Volker John is Vice President of Engineering at Actian. His current responsibilities include overseeing the research and development efforts for all of Actian’s NoSQL, Graph, and BaaS technologies, as well as providing senior engineering leadership on the executive staff. He joined Actian in 2012 when it acquired Versant GmbH, where he was managing director. He previously held senior positions in product management and business development at several software and service providers. Volker is based in Hamburg, Germany.

Emma McGrattan

Emma McGrattan

SVP - Engineering

As SVP of Engineering at Actian, Emma leads research and development for Actian’s Hybrid Data Analytics Portfolio. A recognized authority in DBMS and Big Data technologies, Emma is a sought-after speaker at industry conferences. Emma has recently celebrated over 25 years in Ingres and Actian Engineering. Educated in Ireland, Emma holds a Bachelors of Electrical Engineering degree from Dublin City University.


Bikram Gupta Sarma

VP - Platform Engineering

Bikram is Vice President of Platform Engineering at Actian, overseeing Zen embedded database, integration engineering and engineering operations. He has over three decades of experience in executive operations, product development and global management. Prior to Actian, Bikram founded Straxium corporation – a company engaged in global management of innovation and leadership in cloud and infrastructure technologies. He also held various positions at Oracle managing different countries as VP Global Center operations, VP Systems Technology and VP Platform Engineering. Bikram has a BS in Electronics Engineering and a MS in Mathematics from BITS, Pilani India. He also undertook certificate courses in Project Management, Finance and Disruptive innovation from Stanford and Harvard Universities.