ALL4 Formalizes Acoustics Practice, Welcomes Buddy Ledger as Acoustics Practice Director
FOR IMMEDIATE RELEASE
[Kimberton, PA] — March 12, 2026 — ALL4 LLC (ALL4) is now formally offering Acoustics Services (acoustics, noise, and vibration) as part of our suite of consulting services.
ALL4’s Acoustics Practice will assist clients with their full project lifecycle acoustics needs from pre-development through ongoing operations to decommissioning. ALL4’s Acoustics Practice will help clients navigate state and local regulations, community relations and facility growth, and on-going operational plans in this evolving arena. Key capabilities and offerings will include advanced modeling, design consultations, agency approvals, public and regulatory stakeholder interactions, and compliance monitoring of ongoing operations. The formation of an Acoustics Practice furthers ALL4’s position to deliver integrated, end-to-end environmental solutions across a broad range of end markets.
Leading the Acoustics Practice will be Buddy Ledger, Acoustics Practice Director, who brings over 20 years of acoustics-related technical consulting and leadership experience to the ALL4 team. Buddy has spent his career navigating complex acoustics, noise, and vibration challenges for a large variety of industrial, commercial, and government (infrastructure) projects across North America. He specializes in bridging the gap between sophisticated acoustic physics analysis, computer modeling, and practical engineering solutions that align with regulatory requirements and the immediate and long-term operational goals of clients. Buddy’s approach is centered on a simultaneous attention to detail while also considering the big picture and his client’s overall strategy and objectives.
“ALL4’s formation of an Acoustics Practice aligns with the needs of our clients in fast growing markets that demand full service environmental consulting from pre-development to ongoing operations. Buddy’s leadership will bring our client’s a top-of-the-line experience on their acoustics needs, and we are excited to welcome him to the ALL4 team,” said Colin McCall, Chief Technical Officer of ALL4.
“I am thrilled to join ALL4 and excited to launch the Acoustics Practice at a firm with such a deep reputation for technical excellence and at a time of incredible growth. I am passionate about connecting clients to consulting expertise, not just to complete tasks, but to truly deliver value and progress toward their strategic and operational objectives. I am also a firm believer in leveraging the latest technology and digital tools to increase the value we provide, ensuring our technical insights translate into competitive advantages for our clients. However, technology alone does not build lasting sustainable consulting practices; that requires strong, lasting, and rewarding relationships with clients, staff, and peers alike. I am excited to get started getting to know the ALL4 team and working together to deliver outstanding value while fostering individual, professional, and organizational growth,” said Buddy Ledger, Acoustics Practice Director at ALL4.
Founded in 2002, ALL4 has expanded into additional service areas based on clients’ needs, strategic acquisitions, and the growth of our team of experienced consultants. Today, ALL4 offers a full spectrum of environmental, health, and safety (EHS) and digital solutions consulting support to industrial clients. The formation of an Acoustics Practice is another example of how ALL4 is meeting the demands of the moment with an eye toward the future.
Background
About ALL4
ALL4 is a leading global provider of strategic consulting services, helping organizations navigate complex EHS challenges across a broad range of heavily regulated industries.
ALL4’s areas of expertise encompass acoustics, air quality, chemical reporting and management, digital solutions, sustainability, investigation and remediation, occupational health and safety, waste management, water quality, and natural resources. With offices and remote experts across the U.S., Canada, Spain, Mexico, and South America, ALL4 brings a robust North American presence and a growing international footprint to our clients, positioning us to support them seamlessly around the world.
ALL4 operates from key physical offices in the metropolitan areas of Philadelphia, PA (headquarters); Rancho Cucamonga, CA; San Juan Capistrano, CA; Atlanta, GA; Louisville, KY; Lexington, KY; Raleigh, NC; Houston, TX; Bellingham, WA; Washington, D.C.; Boston, MA; and Madrid, Spain.
ALL4 has consistently earned recognition as a “Best Place to Work” regionally and nationally, reflecting growth in personnel, culture, and environmental impact. Notable honors include:
- Verdantix Green Quadrant for Service Providers – Innovator Status
- Inc. 5000 Fastest Growing Companies
- ENR Top 200 Environmental Firms
- Zweig Hot Firm – Fastest Growing Firms
- Best Companies Group
For more information visit www.all4inc.com.
ALL4 is a portfolio company of Levine Leichtman Capital Partners (LLCP).
###
