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 applications and move to a modern, distributed database platform. In doing so, businesses are able make data the centerpiece of their organization and transform into an Internet Enterprise.
DataStax Delivers
Apache Cassandra in a database platform purpose built for the performance and availability demands of modern Web, Moble and Internet of Things (IOT) applications, giving enterprises a secure always-on database that remains operationally simple when scaled in a single datacenter or across multiple datacenters and clouds. With more than 500 customers in over 50 countries, DataStax is the technology of choice for the world’s most innovative companies, such as Netflix, Adobe, Intuit, 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.
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. 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, Cassandra is used by leading companies such as Disney, IBM, New York Times, Hulu, Spotify and Twitter. The Chair of the Apache Cassandra Project is Jonathan Ellis, co-founder and CTO at DataStax.

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.
Billy Bosworth
Jonathan Ellis
CTO / Co-Founder
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.
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Jonathan Ellis, Chief Technology Officer & Co-Founder
As Chief Technology Officer and co-founder at DataStax, Jonathan sets the technical direction for the company and leads Apache Cassandra as project chair. 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.
Matt Pfeil
CCO / Co-Founder
Dennis Wolf
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.
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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
Steve Rowland
EVP Field Operations
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.
Tony Kavanagh
Martin Van Ryswyk
EVP Engineering
Tony Kavanagh, Chief Marketing Officer
Tony is a senior technology marketing executive with over 20 years experience in the industry. He is responsible for all marketing at DataStax. He has held senior management positions at Oracle, Salesforce.com, XOJET, InQuira and KPMG, in the US and EMEA. He holds a Bachelor of Commerce from University College Dublin, a Masters in Business from the Smurfit Graduate Business School and is a Fellow of the Institute of Chartered Accountants in Ireland.
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.
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Robin Schumacher
VP Products
Debbie Murray
VP Human Resources
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.
Debbie Murray, Vice President of Human Resources
As the VP of Human Resources, Debbie oversees worldwide people strategy while aligning with key business objectives. She has over 15 years of leadership experience in Human Resources, Finance and Business Administration with a focus on fast-growing technology startups in the Silicon Valley. Prior to DataStax, Debbie held leadership roles at both M-Factor and Guidewire Software where she was responsible for both the HR and Finance functions. Debbie earned her Bachelor's degree at the University of San Diego.

Contact Us


DataStax HQ
San Francisco Bay Area
3975 Freedom Circle
Santa Clara, CA 95054
Tel. +1 (650) 389-6000
UK Office
Europe, Middle East
& Africa Regional HQ
Lakeside House
1 Furzeground Way
Stockley Park
Uxbridge, Middlesex, UB11 1BD
Tel. +44 (0) 208 622 3021
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
Texas Office
DataStax TX
902 East 5th St. #202
Austin, TX 78702
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
General Inquiries
Tel. +1 (408) 933-3120
Sales Inquiries
Tel. +1 (408) 933-3120
Media Inquiries