Clean Harbors (CLH) Q4 2024 earnings summary
Event summary combining transcript, slides, and related documents.
Q4 2024 earnings summary
8 Jul, 2026Executive summary
Q4 2024 revenue grew 7% year-over-year to $1.43 billion; full-year revenue increased 9% to $5.89 billion, driven by strong Environmental Services (ES) segment performance and record margin expansion.
Full-year net income reached $402.3 million (EPS $7.42), with Q4 net income at $84.0 million (EPS $1.55), both up from 2023.
Adjusted EBITDA for 2024 rose 10% to $1.12 billion (19.0% margin), with Q4 Adjusted EBITDA at $257.2 million.
Achieved operational milestones including the commercial launch of the Kimball, Nebraska incinerator, integration of HEPACO and Noble Oil, and expansion in Baltimore.
Maintained a strong safety record, surpassing 2024 goals (TRIR improved to 0.65).
Financial highlights
Q4 adjusted EBITDA was $257.2 million (18.0% margin); full-year adjusted EBITDA was $1,116.9 million (19.0% margin).
Full-year revenue grew 9% to $5.89 billion; Q4 revenue increased by $90 million (7%).
Adjusted free cash flow for 2024 was $357.9 million; cash and short-term securities at year-end were $789.8 million, up $240 million for the year.
Q4 gross margin was 29.9%, down from 31.0% in Q4 2023; full-year gross margin was 31.0%.
Share repurchases in 2024 totaled $55 million.
Outlook and guidance
2025 adjusted EBITDA guidance: $1.15–$1.21 billion (midpoint $1.18 billion), representing 6% growth year-over-year.
2025 adjusted free cash flow expected in the range of $430–$490 million, with net cash from operating activities of $775–$865 million.
Q1 2025 ES segment Adjusted EBITDA expected to grow 4–6% year-over-year; consolidated Q1 EBITDA expected to be flat.
Continued margin improvement anticipated, with ES segment EBITDA expected to increase 5–8% from 2024.
SKSS 2025 adjusted EBITDA expected at $140 million amid ongoing market challenges.
Latest events from Clean Harbors
- Environmental Services margins are expanding, supported by safety, innovation, and disciplined capital allocation.CLH
Oppenheimer 20th Annual Industrial Growth Conference8 Jul 2026 - Q2 revenue up 11% and net income up 15%, with raised guidance and strong segment growth.CLH
Q2 20248 Jul 2026 - Q3 revenue up 12% and net income up 26%, with strong ES growth and margin gains.CLH
Q3 20248 Jul 2026 - Record Adjusted EBITDA and margin growth driven by ES strength and cost controls in Q2 2025.CLH
Q2 20258 Jul 2026 - Sustainable growth, market leadership, and innovation drive strong financial and ESG results.CLH
Investor presentation23 Jun 2026 - PFAS, reshoring, and regulation fuel growth, with strong demand and rising free cash flow conversion.CLH
Waste360/ Stifel Investor Summit10 Jun 2026 - Margin expansion, Safety-Kleen growth, and PFAS tailwinds drive strong outlook.CLH
16th Annual Wells Fargo Industrials & Materials Conference9 Jun 2026 - Guidance raised to 9% EBITDA growth, with PFAS and project work fueling strong momentum.CLH
Oppenheimer 21st Annual Industrial Growth Virtual Conference8 May 2026 - Record Q1 results and raised 2026 guidance reflect strong demand and margin expansion.CLH
Q1 20266 May 2026