Known for its Twister data integration framework products, SMSi's technology allows users to easily extract, share and query information stored in an unlimited number of data sources and applications.
Once acquired, SMSi will operate within the Information Solutions division of Boeing's Network and Space Systems business.
"Our customers continuously look for better, more cost-effective ways to manage data across disparate networks, and SMSi has terrific capability to do that," said John Hinshaw, Boeing vice president and general manager of Information Solutions.
"We've worked with SMSi for a number of years and see their team and products as strong complements to our existing capabilities.
"SMSi adds important vertical content to Boeing's product portfolio for two high-growth markets that are key priorities for our customers: C4ISR and cybersecurity."
SMSi has headquarters in Reston, Va. It is privately held and the terms of the transaction weren't disclosed.
The transaction is expected to be completed in the third quarter of this year.