Sentient Digital has also announced a new brand identity, SDi, in relation to the transaction.
The deal is in line with SDi’s strategy to build crucial technological skills and enter new markets.
Since late last year, SDi has been working on plans related to the purchase of R DA.
The parties signed the transaction agreement with 1 June as the actual closing date.
R DA is a provider of systems engineering and software development services.
With the addition of R DA, SDi will expand its specialised technological expertise in mission-crucial acoustic engineering.
These expanded skills will allow it to support signal processing for anti-submarine warfare (ASW) applications.
SDi president Chris Mobley said: “This acquisition aligns to our goals of expanding our customer base and building organisational expertise.
“Further, this deal supports our vision of becoming essential to our customers through continued organic growth of capabilities, targeted IP acquisitions, and new operating models that inspire innovation to create differentiated products and services for our customers.”
With its rebranding, SDi will now cease to operate under the trade name or logo of Entrust Government Solutions.