Datawatch and Lavastorm Announce Strategic Alliance

DATAWATCH AND LAVASTORM ANNOUNCE STRATEGIC ALLIANCE

Combination Offers Unparalleled Visual Analytics and Process Improvement Against Structured and Unstructured Data

Chelmsford and Boston, Mass. —April 29, 2013—Datawatch Corporation (NASDAQ-CM: DWCH),
the leading global provider of information optimization solutions, and Lavastorm Analytics, a global
analytics software company, today announced a strategic alliance to provide customers the ability
to expand their use of unstructured and semi-structured data sources when developing analytic
applications. By combining Datawatch’s Information Optimization Platform with the Lavastorm
Analytics Engine, Lavastorm’s powerful, visual and versatile analytic development environment,
customers will be able to build analytical applications faster and with greater data variety in areas
such as machine data analytics for IT operations, billing verification and accuracy for
communications service providers, electronic data interchange analytics for healthcare and a wide
variety of other vertical and horizontal solutions.

In Lavastorm’s recent survey of more than 600 data analytics professionals, Big Data was
identified as one of the top two areas driving increased investment in analytics in 2013 while
greater use of unstructured data was cited as one of the most important developments expected.
The Datawatch – Lavastorm partnership enables organizations to solve these Big Data and
unstructured data problems with the combined power to manage volume and complexity issues
using Lavastorm’s agile data analytics engine and the flexibility to handle a wide variety of content
sources and formats through Datawatch’s information optimization technology.

“Leveraging the growing variety of business data sources and types is critical for any successful
analytics program,” said Drew Rockwell, CEO, Lavastorm. “There is great value in data outside the
data warehouse, including unstructured and semi-structured documents and files, which can be
critical to root cause analysis and optimizing many business processes. Through our partnership
with Datawatch, business analysts and their organizations have an agile way to integrate and
analyze virtually any source of information.”

“Lavastorm’s visual design paradigm is unique and opens up the ability to develop complex process
driven analytical applications in a whole new way,” said Michael Morrison, President and Chief
Executive Officer of Datawatch. “We are often called upon to help develop applications where
customers are looking to enhance processes that go beyond the capabilities of traditional business
intelligence solutions. Through this partnership we now have a powerful tool in our arsenal to
deliver these types of solutions both to our customers and as part of our overall solutions strategy.”
Datawatch and Lavastorm will support this partnership through co-selling and joint marketing
programs starting immediately. Additionally, Datawatch has begun to evaluate incorporating
Lavastorm into its packaged solutions to provide more flexibility to customers who wish to tune
these applications once they are deployed.

To learn more about Datawatch and its Information Optimization Platform, visit
datawatch.imarc.io. For more information on the Lavastorm Analytics Platform and to try the free-for-life version of the Lavastorm Analytics Engine, visit
http://www.lavastorm.com/resources/software-downloads-trials/.

Tags: Datawatch, Lavastorm, Analytics, Data Analytics, Information Optimization, Big Data,
Unstructured Data, Data Management, Predictive Analytics

ABOUT DATAWATCH CORPORATION
Datawatch Corporation (NASDAQ-CM: DWCH) is a leader in providing information optimization
products and solutions that allow organizations to deliver the greatest data variety possible into
their big data and analytic applications. Datawatch provides organizations the ability to integrate
structured, unstructured, and semi-structured sources like reports, PDF files, and EDI streams into
these applications to provide a 360 degree perspective of the issues and opportunities that exist in
their businesses. More than 40,000 organizations worldwide use Datawatch’s products and
services, including 99 of the Fortune 100, and businesses of every type can benefit from the power
and flexibility of Datawatch’s industry leading solutions. Datawatch is headquartered in
Chelmsford, Massachusetts with offices in London, Munich, Singapore, Sydney and Manila, and with
partners and customers in more than 100 countries worldwide. For more information, visit
datawatch.imarc.io.

ABOUT LAVASTORM ANALYTICS
Lavastorm Analytics is a global analytics software company that enables a new, agile way to
analyze, optimize, and control data and business processes. The company’s products provide
analysts with programming powers previously limited to IT to rapidly unify disparate data, easily
construct complex analytics, and effectively deliver actionable insight and results. Analytics built in
Lavastorm can easily be deployed as persistent solutions and applications, providing continuous
analytic monitoring across multiple systems and complex, data-intensive processes. Lavastorm’s
solutions have identified business improvements worth billions of dollars for some of the largest
corporations in the world. For more information, please visit: www.lavastorm.com.

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995
Any statements contained in this press release that do not describe historical facts may constitute
forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of
1995. Any such statements, including but not limited to those relating to results of operations,
contained herein are based on current expectations, but are subject to a number of risks and
uncertainties that may cause actual results to differ materially from expectations. The factors that
could cause actual future results to differ materially from current expectations include the
following: risks associated with the continuing weak global economy; risks associated with
fluctuations in quarterly operating results due, among other factors, to the size and timing of large
customer orders; the volatility of Datawatch’s stock price; limitations on the effectiveness of
internal controls; rapid technological change; Datawatch’s dependence on the introduction of new
products and possible delays in those introductions; competition in the software industry generally,
and in the markets for information optimization in particular; Datawatch’s dependence on its
principal products, proprietary software technology and software licensed from third parties; risks
associated with international sales; risks associated with indirect distribution channels; the
adequacy of Datawatch’s sales returns reserve; risks associated with a subscription sales model;
risks associated with acquisitions, including the recent acquisition of intellectual property from Math Strategies; Datawatch’s dependence on its ability to hire and retain skilled personnel;
disruption or failure of Datawatch’s technology systems that may result from a natural disaster,
cyber-attack or other catastrophic event; and uncertainty and additional costs that may result from
evolving regulation of corporate governance and public disclosure. Further information on factors
that could cause actual results to differ from those anticipated is detailed in various publiclyavailable
documents, which include, but are not limited to, filings made by Datawatch from time to
time with the Securities and Exchange Commission, including but not limited to, those appearing in
the Company’s Annual Report on Form 10-K for the year ended September 30, 2012 and Form 10-Q
for the quarter ending December 31, 2012. Any forward-looking statements should be considered
in light of those factors.

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Investor Contact:
Datawatch Investor Relations
investor@datawatch.com
Phone: (978) 441-2200 ext. 8323
Datawatch Media Contact:

Sarah Bernardi
Datawatch Corporation
Sarah_Bernardi@datawatch.com
Phone: (978) 441-2200 ext. 8387
Twitter: @datawatch

Lavastorm Analytics Media Contact:
Stephanie Jackman
March Communications
prlavastorm@marchpr.com
+1 617-960-9882

© 2013 Datawatch Corporation. Datawatch, Monarch and their respective logos are trademarks or
registered trademarks of Datawatch Corporation in the United States and/or other countries. All
other names are trademarks or registered trademarks of their respective companies.