BINGEN, WA – December 10, 2007 – Insitu, Inc., a pioneer developer of long-range,

autonomous unmanned aircraft systems (UAS) and advanced tools for intelligence, surveillance,

and reconnaissance (ISR), today announced it has closed $25 Million in Series D financing led

by Battery Ventures.  Existing investors Second Avenue Partners and Pteranodon Ventures also

participated in this round.  The financing will be used to continue to advance the company’s

technology and scale the organization.

Insitu was recently named by Inc. Magazine as the 87th fastest growing company in North

America. Insitu also ranked 4th on Deloitte's 2007 Washington State Technology Fast 50 list,

recognized for its five-year growth trajectory. Insitu’s unmanned aircraft systems have achieved

more than 60,000 hours of operational experience since being deployed in 2004 for both land and

sea-based missions.

“We’re seeing extremely high customer demand for and satisfaction with our technology, and this

financing will help us make the most of that momentum,” said Steve Sliwa, President and CEO

of Insitu.  “Our miniature robotic aircraft are an ideal platform for military, commercial and

civilian use, based on their small size, long-endurance, low-cost, basing flexibility, and

consistent reliability.  Today, we have an operationally mature platform that is making a

difference every day in military applications, and we want to continue to innovate to give our

customers the technological advantage they require.”  

Insitu has been recognized as a best-in-class product for the small, tactical unmanned aircraft

vehicle (UAV) market.  The unique and versatile technology is available in challenging mission

environments that are off-limits to other unmanned aircraft systems.  It operates autonomously

over the ocean, from small and unprepared fields, in rugged terrain, in high winds, crosswinds,

and significant precipitation, reliably and repeatedly. 

“Insitu has done a great job establishing their technological and market leadership in the UAS

market” said Roger Lee, general partner at Battery Ventures.  “They have a terrific market

opportunity in front of them and the team has executed exceptionally well. We’ve seen a steady

increase in the use of robotics in the mainstream, and are now seeing the requisite military,

commercial and civilian budgets increase to make the best use of these new technologies. This

additional financing will allow the team to not just maintain, but accelerate, their pace.” 

About Insitu 

Insitu, located in Bingen, Washington, designs, develops, and manufactures unmanned aircraft

systems (UAS) for commercial and military applications. Insitu introduced the first unmanned

aircraft (UA) to cross the Atlantic Ocean and has partnered with Boeing to develop ScanEagle®

and Fugro Airborne Surveys to develop GeoRanger™. For more information about the company,

visit www.insitu.com.

About Battery Ventures

Since 1983, Battery has been investing in technology and innovation worldwide. The firm

partners with entrepreneurs and management teams across technology sectors, geographies and

stages of a company’s life, from start-up and expansion financing, to growth equity and buyouts.

Battery has supported many breakthrough companies around the world, including: Airespace

(acquired by Cisco), Akamai Technologies (NASDAQ: AKAM), Cbeyond (NASDAQ: CBEY),

LIFFE (acquired by Euronext), and Neoteris (acquired by Netscreen). Its current portfolio

includes emerging firms such as BladeLogic (NASDAQ: BLOG), Cedar Point Communications,

Lion Cells, Netezza (NYSE Arca: NZ), Spot Runner, and Tejas Networks, as well as more

established companies such as ITA Software, Consona Corporation, MetroPCS (NYSE: PCS)

and Nova Analytics.

From offices in Boston, Silicon Valley and Israel, Battery manages nearly $3 billion in

committed capital, including its current fund of $750 million. For more information, visit

www.battery.com.

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Contact: 

Chesua Patte

Insitu, Inc.

509.493.6341

chesua.patte@insitu.com

Karen Bommart

Battery Ventures

781.478.6600

kbommart@battery.com

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