The phrase "as panelists" is correct and usable in written English.
You can use it when referring to individuals who are serving in the role of panelists during a discussion, presentation, or event.
Example: "We are pleased to announce that Dr. Smith and Professor Johnson will be joining us as panelists for the upcoming conference."
Alternatives: "in the role of panelists" or "serving as panelists".
The Workshop on Youth Leading Sustainability also had a panel discussion with specially invited guests as panelists.
NPD says it has more than 800,000 consumers registered as panelists.
Members of Congress appear as panelists along with country singers, rappers and actors on "Politically Incorrect".
(We had also discussed this question earlier in the day, as panelists on NPR's On Point).
The forum was part pep rally and part brainstorming session, as panelists shared enforcement strategies, compared prevention programs and fielded questions from a packed audience that included worried parents on the verge of tears.
At Adelphi University last semester, Rakesh Gupta, who teaches management and business policy and is an associate dean of the School of Business, moderated a discussion on business ethics featuring professors from other departments as panelists.
The start of the second debate was delayed by about five minutes as confused panelists pointed out that neither candidate was on stage.
New York's need for counterterrorism financing resonated throughout the hearings as panelist after panelist reiterated a belief that it was only a matter of time before the next terrorist strike and that the city was a likely target.
As panelist she traced the historical ascendancy of beef over pork in America "to the refrigerated railroad car, when people had the opportunity to taste fresh beef instead of the previous ho-hum salt pork".
As panelist Maynard Webb of LiveOps pointed out, "A brand can get damaged faster than ever nowadays".
As panelist Dr. Bernard E. Anderson -- economist, professor, and member of the National Urban League President's Council of Economic Advisors pointed out, "when the private sector is unable to create sufficient jobs, the government must".
