The phrase "already using data" is correct and usable in written English.
It can be used to indicate that someone or something is currently utilizing data at this moment or has been doing so for some time.
Example: "Our team is already using data to drive our marketing strategies and improve customer engagement."
Alternatives: "currently utilizing data" or "actively employing data".
Somewhat like the way old Androids are: Researchers are already using data collected from an Android app that measures barometric pressure.
News teams were already using data more extensively to work out what stories should feature on TV, with interest in online coverage of Greece's relationship with the European Union helping staff decide whether to feature the story in the evening bulletin.
As some studies are already using data in IntPath [ 21], we believe our work here can facilitate a variety of works that need to refer to pathway information.
Many police departments already use data to analyze crime trends, but intelligent computer systems could one day analyze crime statistics automatically and in real time.
Since they already use data to coordinate for the Boston Marathon every year, they were able to adjust for the New England Patriots' victory parade after Super Bowl LI pretty easily.
Many metropolitan areas already use data-collection systems like sensors, video cameras and GPS devices.
In particular, Apple wants to offer iPhone users information on traffic-congestion, as Google already does using data fed back from the millions of Android phones travelling the roads of the world.
Several studies have already been conducted using data from the PCR-MN case register.
We are already using these data to look for new forces and particles (see here and here).
While it is early days, Newcastle College is already using the data gathered to inform its marketing activities and curriculum planning.
Microsoft was already using Here data in Bing Maps (used in Bing.com, Cortana and other services) and the Bing Maps API.
