Maryland-based SEK, CPAs & Advisors, which has offices in Central Pennsylvania, adds four team members.

York-based Gavin names Rachael Kelley art director, Jade Hubley senior graphic designer, Bill Daiber director of digital marketing and web services, and Rick Dunlap public relations account director.

Harrisburg-based McNees Wallace & Nurick LLC named Christopher Ladner an attorney with the intellectual property practice group.

He will coordinate site construction activities and supervise and train field personnel.

He will facilitate projects with core technology systems providers and train staff on technology enhancements for upgraded products and services to customers. He was project manager. He has a bachelor’s degree from Millersville University.

Susquehanna Township-based Pennsylvania Aggregates and Concrete Association elected Bob Housel chairman of the board of directors

East Pennsboro Township-based Boyer & Ritter has named 10 new additions to its team.

He retired as CEO of Larson Design Group.

He will oversee the execution of the nonprofit’s fiduciary management strategy, meet all regulatory requirements and provide human resources support.

He is an attorney with the litigation and finance & creditors’ rights practice groups of Lancaster-based Barley Snyder.

She is an attorney in the employment practice group of Lancaster-based Barley Snyder.

He has a bachelor’s degree from Penn State and a medical degree from the Nova Southeastern College of Osteopathic Medicine. Previously, he practiced internal medicine with the Lehigh Valley Health Network.

York-based The Parliament Arts Organization, which engages with and showcases emerging artists in the York community, named Jamiel Alexander, Peter Bottros and Delia Pabon board members.

She will educate and provide technology solutions to businesses and nonprofits in York County, oversee hiring of new staff and consult with the firm’s executives on strategic planning.

Previously, he was a physician at Harrison Medical Center in Washington state and a core faculty member at the Northwest Washington Family Medicine Residency.