"also on behalf of" is correct and usable in written English.
You can use it when you want to indicate that something is done or said by you on behalf of someone else. For example: "We are writing to you today also on behalf of your colleagues who support this cause."
The newest iteration of the Donna app — which is labeled version 2.0 — does more of the same, but the Incredible Labs team has made Donna more powerful, in terms of being able to not just communicate with a user, but also on behalf of one.
From the courtroom's benches, young immigrants listened in, including some of the five plaintiffs named in the lawsuit, which was filed also on behalf of the Arizona Dream Act Coalition, one of many organizations formed to pressure Congress and foster public support for their cause.
Banks will cease conducting certain transactions not just on their own account, but also on behalf of clients.
The website acts as an agent for these bookings, and also on behalf of a number of airlines.
Also on behalf of Rufus, he captured Helias (Hélie), count of Maine, thereby securing the important town of Le Mans for the English.
The second report, on the status of the rig's equipment, was produced by four investigators from a separate division of Lloyd's Register Group, also on behalf of Transocean.
You might also apply on behalf of your business (even if you are the only one involved with the business).
Democrats also spoke on behalf of the bill.
Mr. Litvinoff also advocated on behalf of the rights of Jews in the postwar East Bloc.
The EU Commission has completely become independent, while it is also negotiating on behalf of the Member States".
Russian government officials also raged, on behalf of Cyprus's many Russian depositors.
