Integrate.com, Inc. has leased 2,504 s/f of office space at 239 South St. David Curley, a senior associate at O'Brien Commercial Properties, Inc., represented South Street Realty, LLC. Integrate is an advertising technology and services provider that offers a Centralized Media-Management Platform. Also, Care Alternatives of Massachusetts LLC has subleased 7,162 s/f of office space at 100 Locke Dr., Marlborough, Mass. Curley represented Care Alternatives. Care Alternatives is a hospice company who provides a comprehensive program of medical care and emotional and spiritual support to patients and their families facing a life-limiting illness.