Goodwin, who has seven years experience in the industry, will head up a conference team and manage some of the company’s major events.
He will also provide technical and creative input for event proposals and quotations.
His client base includes big-name brands such as Bacardi, Wickes, Philips, Barratt Homes, Siemens, Sainsbury’s and Staples.
Goodwin’s hire coincides with the appointment of Jody Carvill, who joins PSG Events as a sales manager.
Keith Istead, managing director of PSG Events, said: "We are absolutely delighted to have Marius and Jody working with us. We have a busy year ahead and it is important to give our clients the highest standards of customer care and technical expertise that we can give them."