Customer Story

Clean Harbors Centralizes Recruitment Marketing with Appcast to Fill Critical Roles

Results at a Glance:
About Clean Harbors

Founded in 1980, Clean Harbors is the leading environmental and industrial service provider and the largest hazardous waste disposal company in North America. Headquartered in Norwell, Massachusetts, the company employs approximately 22,000 full-time staff across the U.S. and Canada. Clean Harbors hires for a wide range of roles including Commercial Driver’s License (CDL) Drivers, Owner Operator Drivers, Commercial Vehicle Mechanics, Environmental Technicians, and Heavy Equipment Operators. 

When Clean Harbors partnered with Appcast in 2020, they were seeking a centralized recruitment marketing solution that could help them fill hard-to-hire roles, improve source tracking, and optimize their recruitment spend. 

“We needed a way to centralize and manage our recruitment marketing efforts. This challenge was a big driver to our partnership with Appcast.”

Patrick Orr, VP of Talent Management, Clean Harbors  

Challenges

Before partnering with Appcast, Clean Harbors faced several key challenges: 

  • Hard-to-Fill Roles: Clean Harbors faced difficulty filling critical roles, particularly CDL Drivers, which are essential to a wide range of locations in the U.S. and Canada.

  • Limited Source Tracking: Their previous applicant tracking system (ATS) lacked reliable source tracking capabilities, making it difficult to understand which channels were driving applicant volume and quality.

  • Inefficient Media Spend: Recruitment advertising was fragmented and lacked measurement, resulting in limited visibility into return on investment and ineffective allocation of budget.

  • Lack of Centralized Strategy: Clean Harbors needed a more centralized approach to manage their recruitment budget, improve candidate quality, and align hiring efforts. 
 

Solutions

To address these challenges, Clean Harbors leveraged a multi-channel recruitment strategy with Appcast, including: 

  • Programmatic Job Distribution: Clean Harbors leveraged Appcast’s programmatic technology to distribute job postings across a proprietary network of thousands of job and niche sites. This not only helped attract a higher volume of qualified candidates for hard-to-fill roles like CDL Drivers but also enabled Clean Harbors to track the original source of each applicant. By shifting away from fragmented job board spending, Clean Harbors adopted a data-driven strategy that delivered clear source attribution and measurable ROI.

  • Appcast Xtend: To improve and gain visibility into hiring performance, Clean Harbors adopted Appcast’s Xtend platform. Xtend is a candidate re-engagement solution that helps employers activate and convert talent already in their pipeline through targeted outreach. For Clean Harbors, Xtend enabled more accurate tracking of hires and provided detailed insights into which sources were driving the most valuable candidates. These actionable insights allowed Clean Harbors to continuously optimize their recruitment process, further enhancing ROI.

  • Traditional Media: Clean Harbors incorporated traditional media channels such as LinkedIn into their recruitment strategy. By consolidating all media efforts under Appcast, they simplified campaign execution and ensured consistent tracking and reporting across platforms.

  • Hands-On Support: Appcast’s account team played a key role in guiding Clean Harbors through evolving recruitment challenges. From introducing new technologies like Xtend to providing actionable data and strategic recommendations, Appcast helped Clean Harbors continuously optimize their hiring efforts with minimal lift from internal teams. 
We’ve used other programmatic companies beforeWhat made the difference with Appcast was the team, which provided data, pointed us in the right direction, and introduced new technologies like Xtend. Having all of that managed by one vendor makes it easier for me and my team.” 

Patrick Orr, VP of Talent Management, Clean Harbors  

Results
  • Programmatic Success: In Q1 2025, Clean Harbors saw a 50% increase in qualified candidates and a 48% reduction in cost-per-qualified candidate compared to Q1 2024.

     

  • Xtend ROI: In 2025, Xtend delivered a 3x return on investment, driving substantial gains in both recruitment effectiveness and overall hiring results for Clean Harbors.

     

  • Operational Efficiency: Appcast’s centralized solutions enabled Clean Harbors to manage recruitment spend more effectively, gain clearer insights into hiring performance across roles and regions, and achieve these outcomes without added tasks to the internal team. 

More Customer Stories

Customer Story

National Health Care Associates

When National partnered with Appcast, they were seeking a recruitment marketing partner that could provide strategic guidance and execution support. At the time, they were facing significant challenges attracting candidates in rural and competitive markets for roles including Registered Nurses (RNs), Licensed Practical Nurses (LPNs), and Certified Nursing Assistants (CNAs).
Customer Story

Clean Harbors

When Clean Harbors partnered with Appcast, they were seeking a centralized recruitment marketing solution that could help them fill hard-to-hire roles, improve source tracking, and optimize their recruitment spend.