Leadership

Leadership That Starts on the Floor

At Keystone Sheets, we believe the strongest leaders are those who’ve walked the same path as their team. Our leadership team brings decades of hands-on experience in the corrugated and packaging industry—giving them the insight, empathy, and drive to lead high-performing teams. True leadership is about more than titles; it’s about building a positive culture, mentoring others, and helping every team member grow. Scroll down to meet the people guiding Keystone forward.

Nick Wriker

PLANT MANAGER

Nick Wriker is the Plant Manager at Keystone Sheets, bringing 17 years of corrugated industry experience—from Stacker Operator to Multi-Plant Director of Operations. Originally from Riegelsville, PA, Nick was drawn to Keystone for its startup energy, strong culture, and the freedom to lead with purpose. He values Keystone’s state-of-the-art machinery, but it’s the people who matter most. Nick fosters a team environment that emphasizes empowerment, learning, and work-life balance, creating space for both personal and professional growth. A graduate of Easton High School with an associate degree in Criminal Justice from Colorado Tech, Nick enjoys fitness, weightlifting, hunting, and working on cars—bringing the same hands-on passion to everything he does.

Gina Vega

CONTROLLER

Gina Vega serves as the Controller at Keystone Sheets, bringing over 12 years of leadership experience in the paper, corrugated, and aerospace manufacturing industries. She joined Keystone in early 2025 and is passionate about driving operational excellence while continuing to grow her career. Originally from Sonora, Mexico, Gina moved to Washington State to pursue higher education and build her professional path. She holds a bachelor’s degree in Business Administration with a concentration in Accounting from Washington State University and is fluent in both English and Spanish. Her diverse background includes key roles in paper distribution, mill operations, and manufacturing leadership. Outside the office, Gina enjoys reading, road trips, camping, and hiking. Committed to continuous improvement, she is dedicated to making a meaningful impact at Keystone Sheets and throughout the Corrugated Partners Group.

Linda Hostetter

HUMAN RESOURCE MANAGER

Linda Hostetter brings over 38 years of experience in HR, payroll, and safety management to her role as Human Resources Manager at Keystone Sheets. A native of Newville, PA, she was drawn to Keystone by the opportunity to serve her community while contributing to a strong, people-first culture. Linda is responsible for a wide range of HR functions, including recruiting, payroll, training, and employee engagement. She is a graduate of Big Spring High School and Cumberland Perry Vocational Technical School, and she also earned her Realtor license from the Institute of Real Estate Studies. Linda holds a SHRM Certified Professional designation. Married for more than 40 years, she’s the proud mother of two and grandmother of five. In her free time, she enjoys family, reading, beach trips, and dreams of starting an animal rescue.

Angela Gladfelter

EMPLOYEE HEALTH AND SAFETY MANAGER

Angela Gladfelter serves as the Employee Health and Safety Manager at Keystone Sheets, where she plays a key role in creating and maintaining a safe work environment. Prior to this role, Angela was responsible for recruiting and onboarding new team members. Angela brings a warm, positive approach that helps create a strong first impression of the Keystone culture. A Chambersburg native, Angela joined the team drawn by the opportunity to be part of a purpose-driven, well-supported startup. Her background includes experience in both the food logistics and biomedical sectors, giving her a broad perspective she applies to her current role. Outside of work, Angela enjoys hiking, biking, traveling, and volunteering. She and her husband have two sons and share their home with two very pampered indoor cats.

Dave Weidner

MAINTENANCE MANAGER

Dave Weidner serves as the Maintenance Manager at Keystone Sheets, bringing over a year of hands-on leadership and deep technical expertise to the team. With a background in maintenance management and training from the Folley Institute in Building Engines, Dave’s experience spans decades of keeping operations running smoothly. Originally from Massachusetts, Dave also spent time in Carlisle, PA. His favorite part of Keystone is the people—especially the hardworking employees who power the plant each day. Outside of work, Dave enjoys playing guitar and riding ATVs. He and his wife have been married for forty years and share their home with two cats and a duck.

John Nitchman

SHIPPING MANAGER

John Nitchman joined Keystone Sheets in October 2023 and brings nearly three decades of industry experience to the team. He started his career at PCA, where he worked for 26 years in roles ranging from machine assistant to plant scheduler. Since arriving at Keystone, he has served as both Corrugator Supervisor and now Shipping Manager. Originally from Hanover, PA, John is a graduate of New Oxford High School. He appreciates the confidence Keystone’s leadership places in him and enjoys being part of a supportive, forward-thinking environment. Outside of work, John enjoys camping, boating, and fishing with his wife, Missy. They have three sons and share their adventures with two dogs.

Alison Everhart

CUSTOMER SERVICE AND SCHEDULING MANAGER

Alison Everhart is the Customer Service & Scheduling Manager at Keystone Sheets. She joined the team in late 2023 and was promoted to her current role less than a year later—a reflection of her leadership and industry experience. Before Keystone, Alison spent 26 years in customer service and management roles in the printing and publishing industry. Originally from Virginia, Alison holds a degree in Business Administration. She values Keystone’s culture of growth and the chance to expand her expertise in a new industry. Outside of work, she enjoys reading, kayaking, and going to concerts. Alison is a proud mom of two sons and a one-year-old grandson.

Hannah White

Production Scheduler

Hannah White is the Production Scheduler at Keystone, where she has been a valued team member since the company’s startup in August 2023. She has also served as Control Room Lead and First Shift Lead, building on her industry experience that began in 2016 as a sheetline operator at Starcorr Sheets and later as Control Room Lead at Pratt in Fort Worth, TX. Hannah enjoys the career growth opportunities Keystone provides and, outside of work, she loves spending time outdoors hiking in Pennsylvania. She is a proud mom to a 14-year-old son who plays French Horn and shares her home with three cats and a dog.