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ONIX Group, formerly Harbor Management Services (HMS) was established in 1987 for the purpose of owning, developing and operating various real estate investments principally for its own account and to provide management and consulting services to others. ONIX Group is headquartered in Kennett Square, Pennsylvania and operates business ventures in the Mid Atlantic Region (DE, MD, NJ, PA, VA) and Florida. The organizations principal business interests are Hospitality, Healthcare, and Commercial Real Estate Development. ONIX Group encompasses the following:

  • Hospitality - Hotels
  • Real Estate Development
    - Office
    - Retail
    - Restaurant Pads
  • Rehabilitation/Therapy Services
  • Addiction Recovery
  • Long Term Care – Nursing & Rehabilitation Centers
  • Assisted Living

The Onix Group is dedicated to practice that is honest and fair.
Integrity and hard work are an integral part of the way we conduct our business.
Onix is creative, goal-oriented, results driven and fiscally responsible.
Most importantly, we are committed to our work associates.
We seek to provide an environment rich in appreciation and opportunity for growth.
Management recognizes that value and satisfaction for our stakeholders can only be achieved through our work associates, the most important asset of the organization.

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Onix Group | 150 Onix Drive | Kennett Square, PA 19348 | 484-731-2500 | Fax: 484-731-1234 | Email:
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