"high-level attendees" is a correct and usable expression in written English.
You can use it when referring to important people who are attending an event or meeting. For example, "The conference brought together high-level attendees from around the world."
The side event will bring together high-level speakers and attendees from FAO, partner organizations and countries, to launch the new FAO Strategy on Climate Change and discuss in particular the role of strategic partnerships in maximizing its impact on the ground through support to countries to implement the agriculture commitments of their NDCs.
So far she has been an invaluable resource working with me to develop the event calendar, plan our vendors, writing copy for attendee communications and reaching out to high-level executives from our attendee list to confirm their RSVPs.
In the industry keynote address to attendees, who included high-level defense experts from NATO and its allies, Post highlighted the benefits of public-private partnerships.
It's the annual highlight of the Tony Elumelu Foundation Entrepreneurship Programme and attendee's benefit from high-level panels, masterclasses and workshops.
There were 150 attendees who are mainly jobseekers and high-level volunteers meeting to discuss networking, resume writing, using LinkedIn, doing elevator speeches and mock interviews.
But the Riyadh conference drew Wall Street titans, and some attendees questioned how a relatively small player enjoyed high-level access to Saudi officials.
Both Jewish and Muslim attendees recognized ongoing congregation-to-congregation conversations occurring between high-level officials in the Jewish and Muslim communities.
Everyone in the room will be an active participant, with no distinction between "speaker" and "attendee --all pattendee --alle invited becattendee --all something to contribute to this high-level, participants discourse".
"High-level conversations about American literature, Faulkner's place in it, the influence of alcohol and race and all the sophisticated conversations you would have at midnight under the circumstances," said one late-night attendee.
