Spectrum Health Services has leased 5,000 square feet of office space at 50 Howe Ave. in Millbury.

The private nonprofit organization provides treatment to individuals with addiction and/or mental health needs including residential programs for the Massachusetts Department of Youth Services.

Paul Matt and David Cohen, vice presidents at Kelleher & Sadowsky Assoc. Inc. of Worcester, represented the landlord, AAA Mass Turnpike Warehousing Corp.