Network Services Company, a $12 billion international organization of distributors selling janitorial supplies, foodservice disposables, industrial packaging and printing materials, has added three key personnel.

David Brown has joined Network Services Company as Director of Global Sourcing. He was previously President of APP China’s North American operations, and prior to that was Vice President of Marketing and International Sourcing for Unisource Worldwide.

David Calloway has joined Network as a National Account Director to assist in the growth of the company’s long-term healthcare business and to develop new business in the southern states. He was previously an Account Manager with Associated Paper, and prior to that a National Account Manager with Unisource.

Stephen Fair has been named Network’s Finance Controller. He was previously with Cardinal Health Medical Products as Manager of Capital Planning and Cash Flow.