Harrisburg-based Keystone Human Services has named Charles S. Sweeder as the third president and CEO in the company’s history, succeeding Charles J. Hooker III, who retired Jan. 24.

Conrad Celestial Jr. has been president and chief executive officer of Unalakleet Investments LLC, based in Chambersburg, since 2017.

Country Meadows Retirement Communities and Ecumenical Retirement Community has a new president and CEO. 

Environmental consulting firm Material Matters, Inc., has named Lisa Challenger CEO. 

Hershey Trust Co. has named Leslie Lenzo as CEO and chief investment officer, effective Jan. 1, 2023.

Sustainable Composites, a Lancaster-based company that upcycles scrap leather into Enspire Leather, a material that can be utilized as new leather, announced the appointment of Donald G. Morrison as CEO.

Bob Grubic announced that he is retiring as CEO of Harrisburg-based engineering firm Herbert, Rowland & Grubic Inc. at the end of this year, after 49 years with the company.

With the retirement of Lee A. Strickler, Harry A. McConnell took over those leadership roles effective Oct. 3.

Leola-based Emerald Asset Management announced that Scott L. Rehr has been appointed the new CEO, succeeding Emerald’s founder Joseph E. Besecker, who will assume the new role of nonexecutive chairman.

PennFuture, a statewide environmental advocacy organization, named Patrick McDonnell, former secretary of the Department of Environmental Protection, as its new president and CEO, effective Oct. 15.

Recent hires in the Midstate include: Pennsylvania Association of School Administrators, Eckert Seamans and United Church of Christ Homes.

The board of directors of Lancaster-based Everence Federal Credit Union has tapped Kristen M. Heisey to be president and CEO. Heisey, who will oversee the credit union’s day-to-day operations, took over June 27 and joins the Everence Financial senior leadership team, reporting to the organization’s president and CEO, Ken Hochstetler.

Bunker Labs and JPMorgan Chase Commercial Banking have expanded the CEOcircle program for military-connected companies, announcing that applications are open through Aug. 3 for the 2022-2023 cohort, which begins in November.

Armstrong World Industries Inc. announced Tuesday the appointment of Christopher P. Calzaretta as its next chief financial officer, succeeding Brian MacNeal.

YWCA York announced today its board of directors has selected C. Kim Bracey as their next CEO, effective July 5.