Mainstay Life Services

Mainstay Life Services Our Mission: We enrich lives through person-centered support and inclusive community programs, unlocking the full potential of people with diverse abilities.

Mainstay Life Services’ history is a history of two organizations, Idlewood Center and Horizon Homes, established in 1971 and 1969 respectively. Mainstay Life Services was formed on January 1, 1999, through the merger of these two non-profit agencies. The commitment of Mainstay Life Services has been to continue the tradition and missions of these two vital community organizations. Horizon Homes a

nd Idlewood Center were pioneers in developing services and supports for individuals with mental retardation in Allegheny County. Both were recognized for quality of service and commitment to individuals and their families. Each organization also had strong Boards of Directors who were involved in governance, policy-making and fundraising. In the mid-1980s, Horizon Homes and Idlewood Center experienced a marked increase in residential services due to the downsizing and eventual closing of state institutions. In 1993, Chartiers MH/MR Center divested itself of residential programming and requested assistance from Horizon Homes and Idlewood Center. Once again, these two organizations responded to the needs of the community through expansion of their residential services. In recognizing the challenges of the 21st Century, both Horizon Homes and Idlewood Center were instrumental in the development of the Comprehensive Service Alliance, a consortium of four mental retardation service providers. Through this joint venture corporation, member agencies collaborate to share resources, discover and develop efficiencies, and expand current services to meet emerging needs. Mainstay Life Services, like all members of the Alliance, is committed to meeting the changing needs of its consumer base and those of the community at large.

A special thank you to our Tee Sign AND Digital Program Book Underwriters for the 19th Annual Charlie Ross Memorial Char...
06/25/2026

A special thank you to our Tee Sign AND Digital Program Book Underwriters for the 19th Annual Charlie Ross Memorial Charity Golf Outing!

Their generous support helps honor Charlie's legacy while making a meaningful difference in the lives of the people supported by Mainstay Life Services.

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Mainstay's data-driven decision making is featured on a national stage. CEO Kim Sonafelt joined Bob Hitson of The BI Col...
06/24/2026

Mainstay's data-driven decision making is featured on a national stage.

CEO Kim Sonafelt joined Bob Hitson of The BI Collaborative for an ANCOR presentation on how data-driven leadership has fueled Mainstay’s success in value-based reimbursement and long-term growth.

More than 90 attendees heard how Mainstay has built a culture where data is understood, shared, and used to guide decisions at every level—strengthening performance, improving outcomes, and positioning the organization for strategic opportunities.

A few key takeaways from their discussion included:
• Data must be accurate, accessible, and meaningful to the people using it
• Buy-in across the organization, not just leadership, is essential
• Real-time insights help teams act early, not react to crises
• Data isn’t punitive—it’s a tool for learning, accountability, and improvement

Most importantly, data helps us do what matters most: demonstrate the value we bring to people’s lives while stewarding resources responsibly.

Thank you to ANCOR for the opportunity to share our journey—and to the Mainstay team for the daily work behind the data.

What are you doing this weekend? We hope it's starting a career with Mainstay! We are seeking team members who are willi...
06/23/2026

What are you doing this weekend? We hope it's starting a career with Mainstay!

We are seeking team members who are willing to consistently work on weekends. If conflicts arise, we value advance notice and open communication so we can ensure coverage.

Apply Today: https://ow.ly/hUG050ZezV8

We are excited to welcome golfers and dinner guests to Nevillewood today! We are pleased to recognize The Chiurazzi Law ...
06/22/2026

We are excited to welcome golfers and dinner guests to Nevillewood today!

We are pleased to recognize The Chiurazzi Law Group, Family & Friends of Mainstay, Maher Duessel, PYLOT PROMOTIONS!, Renk's Landscaping, and The Charlie Ross Family as Driving Range Underwriters for the 19th Annual Charlie Ross Memorial Charity Golf Outing.

Their generous support helps us honor Charlie’s legacy and continue making a meaningful difference in the lives of those we support.

This year our amazing silent auction has online bidding! Check it out here: https://givebutter.com/c/19thAnnualCharlieRossMemorialCharityGolfOutingSilentAuction/auction

And, there is also still donate to support the Mainstay mission. Click here to learn more: https://mainstaylifeservices.org/event/

!

Today, we celebrate all the dads, stepdads, grandfathers, and father figures who show up with love, support, and strengt...
06/21/2026

Today, we celebrate all the dads, stepdads, grandfathers, and father figures who show up with love, support, and strength every single day. Whether through a kind word, a steady hand, or a listening ear, your impact is immeasurable.

To the fathers in our Mainstay community—thank you for inspiring us and helping create a world where everyone, of all abilities, is valued and supported.

Wishing you a day filled with joy, appreciation, and connection.

We are pleased to recognize Henderson Brothers, Inc., ShiftAbility, and Vivid Dental/Megan Ross, DMD as our Golf Cart Un...
06/20/2026

We are pleased to recognize Henderson Brothers, Inc., ShiftAbility, and Vivid Dental/Megan Ross, DMD as our Golf Cart Underwriters for the 19th Annual Charlie Ross Memorial Charity Golf Outing.

Their generous support helps us honor Charlie’s legacy and continue making a meaningful difference in the lives of those we support.

We are excited to be on the course in just 2 days! You can still donate to support the Mainstay mission. Click here to learn more: https://mainstaylifeservices.org/event/

Today we honor Juneteenth. On this day in 1865, more than two years after the Emancipation Proclamation, the last enslav...
06/19/2026

Today we honor Juneteenth. On this day in 1865, more than two years after the Emancipation Proclamation, the last enslaved African Americans in Galveston, Texas, were finally freed.

We asked team members to share what Juneteenth means to them...see some of their responses.

We are pleased to recognize The Chiurazzi Law Group, Dad's Pub & Grub, Henderson Brothers, L&L Designs, Pinnacle Consult...
06/18/2026

We are pleased to recognize The Chiurazzi Law Group, Dad's Pub & Grub, Henderson Brothers, L&L Designs, Pinnacle Consulting and Recruitment, and PNC as our Foursome Sponsors for the 19th Annual Charlie Ross Memorial Charity Golf Outing.

Their generous support helps us honor Charlie’s legacy and continue making a meaningful difference in the lives of those we support.

There's just a few days until we hit the links! You can still sign on to support the event. Click here to learn more: https://mainstaylifeservices.org/event/

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The 2026 Mainstay Golf Auction is officially LIVE! ⛳💙Get ready to bid big and make an impact at the Mainstay! From exclu...
06/18/2026

The 2026 Mainstay Golf Auction is officially LIVE! ⛳💙

Get ready to bid big and make an impact at the Mainstay! From exclusive private chef experiences and signed memorabilia to local favorites and must-have packages, there’s something for everyone.

Start bidding here: https://givebutter.com/c/19thAnnualCharlieRossMemorialCharityGolfOutingSilentAuction/auction

Don’t wait—your next favorite item is just a bid away!

Proceeds from the Golf Outing are contributed to the Irene & Walter Jacob Supplemental Needs Fund which provides resources that enhance health, independence, and quality of life.

NOTE: The scheduled ending time for the auction is 6:30pm on Monday, June 22, 2026. Weather could impact this ending time. Watch the platform for any changes and make sure your final bid is on time.

Please select the "Auction" Tab from above in order to place a bid!

We are pleased to recognize NJM Insurance Group, PDC Pharmacy, and Jim Yahner & Kathleen Newman as our Skills Contest Un...
06/17/2026

We are pleased to recognize NJM Insurance Group, PDC Pharmacy, and Jim Yahner & Kathleen Newman as our Skills Contest Underwriters for the 19th Annual Charlie Ross Memorial Charity Golf Outing! Their generous support helps us honor Charlie’s legacy and continue making a meaningful difference in the lives of the people we support.

There's just a few days until we hit the links! You can still sign on to support the event. Click here to learn more: https://mainstaylifeservices.org/event/

Address

Pittsburgh, PA

Opening Hours

Monday 8:30am - 4:30pm
Tuesday 8:30am - 4:30pm
Wednesday 8:30am - 4:30pm
Thursday 8:30am - 4:30pm
Friday 8:30am - 4:30pm

Telephone

+14123443640

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