Diversified advisory firm Grant Thornton Australia has merged with GNC Group Consulting , a Melbourne-based management consulting firm.

GNC, founded by Nick Johnson, Jamie Downs and Luke Ritchie, has offices in Sydney and Kuala Lumpur. The firm, which employs 55 people, will now become a part of Grant Thornton’s growth advisory practice.

The financial terms of the merger were not revealed by the companies.

Grant Thornton Australia CEO, Greg Keith said: “We have a very clear plan to expand our growth advisory business and to provide our clients with even greater expertise and advice. GNC Group has deep experience advising some of the most successful retailers in the country and we’re looking forward to leveraging their capabilities.”

GNC partner Nick Johnston added: “Between the access to Grant Thornton’s back-office and shared services, their support and training capability and their high-quality talent pool, we will be well positioned to bring an even stronger offer to our clients. We will retain the GNC Group brand and our ways of working so it really is business-as-usual for our clients.”