The three European leaders issued identical statements shortly after their call with Trump on Wednesday.
They read: "The leaders discussed the latest on the ongoing US-led peace talks, welcoming their efforts to achieve a just and lasting peace for Ukraine, and to see an end to the killing.
"Intensive work on the peace plan is continuing and will continue in the coming days."
The call lasted for about 45 minutes, and was initiated by the Americans last night.
Sources characterise progress as "inching towards a deal" - but emphasise the complexity of arriving at one.
A key sticking point remains Ukrainian territory and whether it is viable or reasonable to expect Kyiv to effectively give up land regarded as its own.
The longstanding formulation of the British government is that decisions about Ukraine have to be made by Ukraine.
This is an argument European governments are making to Washington, while publicly and privately praising Trump's commitment to bringing an end to the war.
National Security Advisers from around Europe, including the UK's Jonathan Powell, are meeting regularly with Ukrainian officials. Summaries of those conversations and others are then shared by allies with Washington.
It is expected that were a point to be reached where a potential deal was arrived at, America would then lead a conversation with Moscow.
At a White House briefing later on Wednesday, Trump admitted that "strong words" were used during the phone call.
He said he was yet to decide on whether to agree with European proposals to hold more meetings this weekend involving Washington and Kyiv.
"We don't want to be wasting time," the US president said.
He also called on Zelensky to be "realistic", saying that Ukrainians "want a settlement... they wanna see it [the war] end".
Earlier on Wednesday, Zelensky wrote on social media that a 20-point document on how to end the war would be handed over to the US in "the near future" after "our joint work with President Trump's team and partners in Europe".
The Ukrainian leader provided no further details.
The original US draft peace plan - widely leaked to media last month - had 28 points, and was seen as favouring Russia. Ukraine has since held separate talks with US and European negotiators, seeking to change some key clauses such as territorial issues and security guarantees.