CHICAGO--(BUSINESS WIRE)--Antares Capital announced today it is serving as administrative agent and lead arranger on a $300 million senior secured credit facility to support the acquisition of Systems Maintenance Services ("SMS") by Partners Group on behalf of its clients. Founded in 1981 and headquartered in Charlotte, NC, SMS provides IT infrastructure services to a client base of more than 3,000 businesses. SMS is a global market leader in third-party maintenance services, which it offers in