Challenge Unlimited at Ironstone Farm

450 Lowell St. (Route 133)
Andover, MA 01810
Phone: 978-475-4056
Fax: 978-475-4046

Executive Director Deedee O’Brien



Silvia Dieckow, program director, Challenge Unlimited and Ironstone Therapy

Neil Fater, marketing director

Jim Greeley, community outreach and development

Kay Milligan, volunteers director

Human resources



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Our Affiliates

Traditional healing. More horsepower.

Ironstone Farm is home to Challenge Unlimited, Inc. (est 1983) and Ironstone Therapy, Inc. (est. 1998), two nonprofit organizations established to provide a variety of services for people with and without disabilities. Both organizations use horses and the wholesome environment of a working farm, while involving people in serving others through volunteering.

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