About DataStax

The world is changing at a rate we could never have imagined. Today’s digitally empowered and geographically distributed customers are radically connected, hyper-informed and always-on. To survive and thrive in this customer-centric, data-driven economy, businesses need to rethink the technology infrastructure on which they are building and deploying mission critical cloud applications and move to a modern, distributed database platform. In doing so, businesses are able to make data the centerpiece of their organization, build real-time value at epic scale and transform into an Internet giant.
DataStax Delivers
DataStax, the leading provider of database software for cloud applications, accelerates the ability of enterprises, government agencies, and systems integrators to power the exploding number of cloud applications that require data distribution across datacenters and clouds, by using our secure, operationally simple platform built on Apache Cassandra.
With more than 500 customers in over 50 countries, DataStax Enterprise is the database technology of choice for the world’s most innovative companies, such as Netflix, Safeway, ING, Adobe, Intuit, Target and eBay. Based in Santa Clara, Calif., DataStax is backed by industry-leading investors including Comcast Ventures, Crosslink Capital, Lightspeed Venture Partners, Kleiner Perkins Caufield & Byers, Meritech Capital, Premji Invest and Scale Venture Partners. For more information, visit DataStax.com/customers or follow us on @DataStax.
About Apache Cassandra
Apache Cassandra is an open source distributed database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure. Apache Cassandra offers robust support for clusters spanning multiple data centers, with asynchronous masterless replication allowing low latency operations for all clients. Evolved from work at Google, Amazon and Facebook, Apache Cassandra is used by leading companies such as Disney, IBM, New York Times, Hulu, Spotify and Twitter.

Management Team

DataStax prides on the talent of its people. The company is thriving under the guidance and leadership of some of the brightest minds and most experienced executives in business.

Contact Us


DataStax HQ
Silicon Valley
3975 Freedom Circle
4th Floor
Santa Clara, CA 95054
Tel. +1 (650) 389-6000
San Francisco Office
San Francisco Bay Area
425 Bush Street
Suite 435
San Francisco, CA 94108
Tel. +1 (650) 389-6000
Texas Office
DataStax TX
902 East 5th St. #202
Austin, TX 78702
UK Office
Europe, Middle East
& Africa Regional HQ
Amberley Place
Peascod Street
Windsor, Berkshire
Tel: +44 (0) 175 326 0300
Paris Office
DataStax France
121 avenue des Champs Elysees
Paris, France 75008
Tel. +33 (0) 1 72 71 86 86
Fax. +33 (0) 1 72 71 85 99
Berlin Office
c/o WeWork
Kemperplatz 1, Building A
10785 Berlin
Sales Inquiries Berlin Office
Herr Thomas Gregg
+49 173 547 34 52

Herr Günther Schnack
Japan Office
東京都港区赤坂 4-7-6
赤坂ビジネスコート 2F
4-7-6 Akasaka Minato-ku
Akasaka Business Court 2F,
Tokyo 107-0052
Tel. (Int'l): +81-3-4360-9127
Australia Office
North Point Tower, Level 40
100 Miller Street
North Sydney, NSW 2060
Tel. +61 2 9931 6896
Fax. +61 2 9931 6888
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Billy Bosworth
Chief Executive Officer
Billy is responsible for the strategy, growth, and day-to-day operations of DataStax. He has 20 years of experience in the database industry in roles ranging from DBA to senior executive. Prior to DataStax, Billy spent 6 years at Quest Software, a provider of systems management software, where his most recent role was VP and GM of the database business unit. Under his leadership, the industry-leading Quest database business grew from supporting traditional relational databases to a portfolio that now includes tools for cloud, NoSQL, columnar, and Hadoop databases, as well as business intelligence offerings. Prior to Quest, Billy led product teams for Embarcadero Technologies' database productivity solutions. He serves as a director of Tableau Software (NYSE: DATA). Billy holds a bachelor of science in computer science from the University of Louisville.
Jonathan Ellis
Chief Technology Officer & Co-Founder
As Chief Technology Officer and co-founder at DataStax, Jonathan sets the technical direction for the company. Prior to DataStax, Jonathan led Rackspace's Cassandra team and built the Cassandra community into an open source success. Previously, Jonathan built an object storage system based on Reed-Solomon encoding for data backup provider Mozy that scaled to petabytes of data and gigabits per second throughput.
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Matt Pfeil
Chief Customer Officer & Co-Founder
Matt is Chief Customer Officer and co-founder at DataStax, the commercial leader in Apache Cassandra. Prior to DataStax, Matt built and managed the Email and Apps infrastructure development group at Rackspace.

Prior to Rackspace, Matt was at Webmail.us where he worked in various management roles in infrastructure and scalability. Matt holds a BS from Virginia Tech in Computer Science.
Dennis Wolf
Chief Financial Officer
Dennis Wolf oversees all of the company’s financial and operational functions. Dennis has held numerous executive positions with public and private companies including CFO, COO, and CEO. His most recent experience is as chief financial officer and executive vice president at Fusion-io, where he led the company to an IPO in 2011. Prior to that, he was the CFO at MySQL where his leadership proved invaluable to their growth and ultimate sale to Sun Microsystems in a transaction valued at $1 billion. Wolf served as CFO of Centigram Communications, Credence Systems, Redback Networks and Omnicell as well as held financial roles at Apple and Sun Microsystems earlier in his career, giving him a wide range of operational leadership over 30 years. He serves as a director and chair of the audit committees of ALPHAEON Corporation and Codexis Inc.(NASDAQ: CDXS), and has been a director and chair of the audit committee for other publicly and privately held companies including Quantum Corporation, BigBand Networks, Inc., Registry Magic, Inc., Avanex Corporation, Komag, Inc., Exponential Interactive, and Vitria Technology, Inc.
Clint Smith
General Counsel
As general counsel, Clint Smith is responsible for the company’s legal affairs, including corporate law, intellectual property strategy, commercial contracts, compliance and litigation. Smith previously has headed the legal departments at UUNET, Macromedia and TrialPay and served as general counsel at open source database provider MySQL AB where he helped lead the company through its $1B acquisition by Sun Microsystems in 2008. Clint earned his J.D., and M.A. from University of California, Berkeley, and his B.A. from Pomona College.
Steve Rowland
EVP Field Operations
Steve is responsible for leading worldwide field operations at DataStax. He has more than 20 years of experience building high performance teams and strong go-to-market strategies that result in exceptional customer experience. Prior to DataStax, Steve was Senior Vice President of Sales and Operations at Apigee where he led the company through hyper growth and a successful IPO.

Prior to Apigee, he was Vice President of Field Operations for the Americas and Asia Pacific geographies at Blue Coat Systems and also served as Senior Vice President of Worldwide Sales at Workbrain Corporation, which was sold to Infor Global Solutions. He also spent eight years at BMC Software, where his last role was Vice President of Sales for a $320m Global Division. Steve also held sales management positions at Carrier Corporation, a division of United Technologies Corporation.
Karl Van den Bergh
Chief Marketing Office
As Chief Marketing Office, Karl Van den Bergh is responsible for executing the company’s cloud applications strategy. Van den Bergh joins DataStax from TIBCO and is an industry veteran with a history of building high-performance teams, products and businesses. As general manager for the TIBCO Analytics cloud business, Van den Bergh was responsible for all product and go-to-market execution that resulted in building the business into the top-selling analytics cloud service on the Amazon Web Services Marketplace. Van den Bergh was also general manager for cloud and senior vice president of products at Jaspersoft, which was acquired by TIBCO in 2014. Van den Bergh has a history of successful roles, both strategic and operational, in early-stage startups such as Kickfire where he ran marketing and alliances, as well as billion-dollar tech companies like Business Objects where he held progressively senior positions including running the corporate strategy board and acting as general manager for the Information-On-Demand cloud business. Van den Bergh holds a Bachelor’s degree in Physics from Trinity College in Dublin and a Master’s degree in Computer Science from Imperial College in London and is fluent in three languages.
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Martin Van Ryswyk
Executive Vice President of Engineering
Martin is responsible for the worldwide software engineering, product development and continued advancement of our integrated enterprise big data platform. He has more than 22 years of experience managing software teams at both small startups and large corporations. During that time, he's brought products to market in a wide variety of areas such as cloud computing, application lifecyle management, database performance analysis, storage management and systems management. Before joining DataStax, he held numerous senior engineering roles, leading the development and go-to-market strategy for enterprise level technology products at Tidal Software, Luminate, EMC and most recently at Electric Cloud. Martin earned a bachelor of science degree in computer science from the University of California, Davis.
Robin Schumacher
Vice President of Products
Robin Schumacher has spent the last 20 years working with enterprise databases and leading product management teams. Robin started and led the product management team at MySQL for three years before they were bought by Sun (the largest open source acquisition in history), and then by Oracle. He also started and led the product management team at Embarcadero Technologies, which was the #1 IPO in 2000. Robin is the author of three database performance books and frequent speaker at industry events. Robin holds BS, MA, and Ph.D. degrees from various universities.