Agencies will be asked about their policies on staff issues, such as recruitment, training and benefits.
This year, the survey has been updated to include questions on internships and work/life balance.
Successful agencies will be awarded gold, silver and bronze awards, and designated a PRWeek Best Place to Work for 2011.
The deadline for entries is 20 July. Last year, Cirkle and London Communications Agency won gold awards.
The survey questions can be previewed below, but all entries must be submitted online here.