Entrants were asked to donate at least £50 to the charity as part of the criteria for the 2015 UK Awards, which recognise the best employers in the business.
A total of £2,200 has been raised.
Ali Jeremy, NSPCC director of communications, said: "A big thank you to PRWeek for asking everyone entering their UK's Best Places to Work Awards 2015 to donate to the NSPCC, raising more than £2,000 to help us fight for every childhood and find the best ways of preventing abuse.
"I’d like to wish all the agencies and in-house teams who entered the Awards the best of luck."
The paper judging process for the awards took place yesterday, and the finalists from each of the four categories will go through to the second stage interview sessions in central London next week. Finalists will be notified over the coming days.