ABC Keystone Members Named National Top-Performing Construction Companies
Associated Builders and Contractors Keystone Chapter today announced 7 member companies landed on ABC National’s 2026 Top Performers lists, which recognize its contractor members’ outstanding achievements in health and safety, quality and project excellence, ranked by number of hours worked.
To qualify, ABC Keystone Top Performers must achieve Gold status or higher in ABC’s STEP® Health and Safety Management System, which helps the best-performing contractors achieve incident rates nearly seven times safer than the U.S. Bureau of Labor Statistics industry average, according to ABC’s Health and Safety Performance Report. The honorees also must earn ABC’s Accredited Quality Contractor credential, which recognizes excellence in quality, health and safety performance, talent management, craft and management education and community relations.
“Keystone’s contractors—which build the most enduring, innovative, high-quality construction projects—develop smart strategies that create a clear path for success, regardless of the circumstances,” said Michael Bellaman, ABC National president and CEO. “ABC Top Performers all share commonalities like participation in ABC’s STEP® Health and Safety Management System and ABC’s Accredited Quality Contractor credential. They find opportunity amid uncertainty, embrace competition, cultivate positive company culture, prioritize safety and total human health, invest in leadership and workforce development and implement new technologies. Congratulations to Keystone’s outstanding merit shop contractors for being employers of choice.”
ABC’s 250 Top Performers (listed by national ranking order)
• Warfel Construction Company (No. 93) | East Petersburg, PA
• Wohlsen Construction Company (No. 101) | Lancaster, PA
• Benchmark Construction Co., Inc. (No. 128) | Brownstown, PA
• Leonard S. Fiore, Inc. (No. 133) | Altoona PA
• Quandel Enterprises, LLC (No. 223) | Harrisburg, PA
ABC’s Top General Contractors (listed by national ranking order)
• Warfel Construction Company (No. 38) | East Petersburg, PA
• Wohlsen Construction Company (No. 42) | Lancaster, PA
• Benchmark Construction Co., Inc. (No. 58) | Brownstown, PA
• Leonard S. Fiore, Inc. (No. 60) | Altoona PA
• Quandel Enterprises, LLC (No. 116) | Harrisburg, PA
• Wagman Construction, Inc. (No. 154) | York, PA
• Keystruct Construction, A Viocity Company (No. 177) | York, PA
Through robust programs like STEP and AQC, ABC Keystone Top Performers demonstrate they can:
• Sustain and grow their businesses, financially and economically
• Offer market-competitive compensation, benefit and retirement packages
• Commit to industry-leading health and safety
• Commit to workforce development, education and creating career opportunities
• Develop opportunities for their employees to achieve their career dreams
• Cultivate committed leadership
The eighth-annual ABC Top Performers lists identify the Top 250 Performers, Top General Contractors, Top Trade Contractors, Top Electrical Contractors, Top Plumbing/HVAC Contractors, Top Specialty Contractors and Top Performers by Market, all of which have earned the elite Accredited Quality Contractor credential. The Top Performers were ranked by the number of hours worked in 2024, as reported in their 2025 STEP applications. The rankings also include lists of top-performing companies in 19 market segments, such as airports, data centers, education, health care, industrial, infrastructure, military and sports complexes.
ABC’s 2026 Top Performers are presented by Construction Executive, ABC’s award-winning magazine for the business of construction. View the 2026 Top Performers lists at abc.org/topperformers.