The phrase "also in existence" is correct and usable in written English.
It can be used to indicate that something exists in addition to what has already been mentioned.
Example: "In addition to the main exhibit, there are several smaller displays that are also in existence within the museum."
Alternatives: "also present" or "also available".
The inquiry was told there was also in existence an earlier version of Hunt's thinking.
More precise tools for altering local weather are also in existence, cloud seeding can be used to augment local precipitation (some forms are safe; efficacy is debated) and, on a tiny scale, your AC's "climate control". Think of these tools as "precision geoengineering". Each intervention individually avoids major negative externalities, but its positive impact on the climate system is minor.
Commercial or independent IRBs from for-profit organizations are also in existence and equally acceptable, as they are subjected to the same US Federal Rules [3].
A variety of weapons are available including handguns, automatic weapons and shotguns, with various ammunition types also in existence.
A number of Dutch and indigenous firms were also in existence but did not achieve similar stature.
Retina scanners are also in existence, and because a person's retina is unique, that technology might replace UDIDs, customer tracking and even mobile payments.
The Continuity IRA is also still in existence.
In 1906, Dr. Edward H. Hume established the Hsiang-ya Medinal SChangshad Hospital in Changsha under the auspices of Yale-in-China, inaugurating a program of teaching and exchange that is also still in existence.
Lindblad is also interested in existence, stability, and behavior of solutions to hyperbolic differential equations.
The product has also been in existence for more than a year, so it has historical data as well.
The former platforms 1 and 2 are also still in existence, but closed to passengers, and was used for Royal Mail Parcelforce services until recently.
