"endorsed on behalf of" is a correct and usable phrase in written English.
This phrase is typically used to indicate that one is acting as a representative of a larger group or organization. For example, "The resolution was endorsed on behalf of the board of directors."
I support you in your mission, though I cannot personally endorse it, nor can I endorse it on behalf of the Starbucks brand".
One of Earnhardt's sons, Kerry Earnhardt, was on-hand for the press conference announcing the attraction and endorsed the ride on behalf of the family.
On Thursday, the conference is to issue a declaration endorsing specific measures on behalf of world peace.
Instead, Mr. Choy will write a letter certifying that the student is in good standing and endorsing the internship on behalf of the university.
He has declined to endorse any candidate on behalf of the super PAC.
So should we expect them to endorse or work on behalf of incumbent Democrat Claire McCaskill's campaign?
Bernard put his weight behind them and wrote persuasively on their behalf in the letter 'In Praise of the New Knighthood', and in 1129, at the Council of Troyes, he led a group of leading churchmen to officially approve and endorse the Order on behalf of the Church.
A day after Karzai abruptly said he would not sign unless Washington agreed to additional conditions, the Obama administration was pushing for Foreign Minister Zarar Ahmad Osmani or another official to endorse the agreement on behalf of the government in Kabul, several U.S. officials said.
Zuma then endorsed Mugabe's reelection on behalf of SADC, even when clear evidence of vote rigging emerged, which Botswana cited as another violation of SADC's guidelines.
During a campaign stop in Aiken, South Carolina, on Tuesday, Clinton's husband, former President Bill Clinton, praised Clyburn for his work on behalf of the state and endorsed one of his policy proposals to combat poverty.
Religious leaders may personally endorse candidates, but they cannot on behalf of their institution.
