FOR IMMEDIATE RELEASE
One of Florida’s Longest-Established
Air Quality Consulting Teams is Now Part of ALL4
[Kimberton, PA] — September 9, 2026 — ALL4 LLC (ALL4) is pleased to announce the acquisition of Koogler and Associates, Inc. (Koogler), a specialized environmental engineering and air quality consulting firm located in Gainesville, FL. Koogler has over 52 years of experience primarily serving industrial clients throughout the Southeastern United States. The addition of the Koogler team and their expertise create an expanded range of air quality permitting, monitoring, and compliance services.
“Joining ALL4 represents an exciting next chapter for Koogler and Associates. Over the past 50 years, our success has been built on technical excellence, trusted client relationships, and a commitment to providing practical solutions to complex environmental challenges. ALL4 shares those values and brings additional expertise, resources, and capabilities that will allow us to offer even greater value to our clients,” shared John B. Koogler, Ph.D., P.E., Founder, Koogler and Associates, Inc.
“We are excited to welcome Koogler and Associates to ALL4. Their permitting and compliance, emissions testing, and monitoring capabilities are a natural complement to ALL4’s existing expertise and further strengthen the solutions we can provide to our clients. Just as importantly, we see a strong alignment in our commitment to technical excellence, our people, and long-term client partnerships. Bringing our teams together creates exciting opportunities for our clients and employees as we continue to grow ALL4’s capabilities and reach,” said William Straub, CEO of ALL4.
One of the key differentiators of Koogler is the integration of its engineering and emissions testing teams. Their primary capabilities include:
- Air permitting and compliance, expert witnessing and litigation support;
- Air regulation (Federal, State, and local) development, commenting, and implementation;
- Air source emissions testing and ambient monitoring;
- Continuous Emission Monitoring Systems (CEMS) Assessments and related monitoring system support; and
- Wastewater and solid waste permitting, reporting, and compliance.
The acquisition of Koogler expands ALL4’s presence in Florida and across the Southeast, establishing a physical office in the region and enhancing ALL4’s ability to provide clients with greater access to local expertise and resources.
“Our clients have always been at the center of what we do, and joining ALL4 gives us the opportunity to serve them with a much broader palette of skills,” said Max Lee, Ph.D., P.E., President of Koogler and Associates. “By combining our technical expertise and long-standing client relationships with ALL4’s broader resources and capabilities, we can provide our clients with access to far deeper expertise and more comprehensive solutions while maintaining the trusted service and technical excellence they have come to expect from Koogler and Associates.”
This marks the second acquisition for ALL4 in 2026.
BACKGROUND
About Koogler and Associates
In 1974, John Koogler, Ph.D., P.E., a founding leader of the burgeoning environmental services industry in the late 1960s, established Koogler and Associates, Inc. Starting with just a few dedicated employees, the company progressed into a specialized environmental engineering consulting firm with exceptional expertise in air quality permitting, compliance, emissions testing and monitoring. The firm serves primarily industrial clients, combining regulatory and engineering expertise with field measurement capabilities and custom monitoring solutions to develop practical, defensible approaches to environmental compliance.
About ALL4
ALL4 is a leading global provider of strategic consulting services, helping organizations navigate complex Environmental, Health, and Safety challenges across a broad range of heavily regulated industries.
ALL4’s areas of expertise encompass air quality, acoustics, chemical reporting and management, digital solutions, environmental planning and permitting, sustainability, investigation and remediation, occupational health and safety, waste management, and water quality. ALL4 brings a robust North American presence and a growing international footprint to our clients, positioning the company to support clients seamlessly around the world. ALL4 has 12 offices in the U.S., one in Madrid, Spain; and remote experts across the U.S., Canada, Mexico, Spain, Chile, Argentina, Uruguay, and Brazil.
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).
About Levine Leichtman Capital Partners (LLCP)
Levine Leichtman Capital Partners, LLC is a global middle-market private equity firm with a 41-year track record of investing across various targeted sectors, including Business Services,
Franchising & Multi-unit, Education & Training and Engineered Products. LLCP utilizes a
differentiated Structured Private Equity investment strategy, combining debt and equity capital investments in portfolio companies. LLCP believes that by investing in a combination of debt and equity securities, it offers management teams growth capital in a highly tailored, flexible investment structure that can be a more attractive alternative than traditional private equity.
LLCP’s global team of dedicated investment professionals is led by 9 partners who have worked at LLCP for an average of 20 years. Since inception, LLCP and its affiliates have managed approximately $18.3 billion of capital across nearly 20 investment funds and invested in approximately 120 portfolio companies. LLCP currently manages $12.6 billion of assets and has offices in Los Angeles, New York, Chicago, Miami, London, Stockholm, Amsterdam and Frankfurt.
For more information visit www.llcp.com.
