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C

Clean HarborsEnvironmental Services · 10001+ · B2B contacts & data

10,001 Employees
1980 Founded
$789M Total Funding
Environmental Services Industry
Environmental Services United States B2B Est. 1980

Company Overview

Sector Professional Services
Headcount 10,001 employees (10001+)
Company type Public company
Revenue $6.1B
Headquarters United States
Website cleanharbors.com
Last updated 31 Jul 2026

Departments actively hiring 15 departments

Consulting
Customer service
Education
Engineering and technical
Finance & accounting
General management
Legal
Marketing
Operations
Other
Product
Project management
Research
Sales
Trades

These departments at Clean Harbors are actively recruiting: a strong signal to time your outreach.

Funding

Last round Other · $745M
Total funding $789M (5 rounds)
Private Equity Round N/A Aug 1987
Post-IPO Equity N/A Mar 1990
Post-IPO Equity $375K Apr 2014
Post-IPO Equity $43M Dec 2023
Post-IPO Debt $745M Oct 2025

Companies similar to Clean Harbors

About Clean Harbors

Clean Harbors is a company active in the Environmental Services space, operating from United States. The company was founded in 1980 and has a workforce of roughly 10,001 people. Clean Harbors belongs to the Professional Services sector, with a specific positioning on Environmental Services. Clean Harbors sells primarily to other businesses (B2B) rather than to end consumers. The company has secured 5 rounds of funding totalling $789M. Its estimated yearly revenue stands at about $6.1B. Use this page to review Clean Harbors's industry, headcount, location and hiring signals, and to reach verified B2B contacts before your next outreach.

Activity & Market

The company evolves in the Environmental Services segment of the Professional Services sector. As a B2B company, Clean Harbors primarily serves business clients and professional organisations. In terms of structure, it is registered as “Public company”.

Decision Makers at Clean Harbors

78C-Level 153VP 212Heads
Decision maker Email Phone

Zeliq has found 443 decision makers at Clean Harbors. Create a free Zeliq account to access their verified emails and direct phone numbers.

See 443 decision makers on Zeliq →

New decision makers last 6 months

3C-Level 5VP 5Heads

13 new decision makers joined Clean Harbors in the last 6 months, a strong signal to time your outreach.

Contact the new decision makers on Zeliq →

Team Structure headcount by department

Operations
1233
Technical
534
Sales
519
Project Management
426
Other
397
Trades
364
Finance
292
Research
287

How to prospect Clean Harbors's departments

Operations

First department of the company by headcount (1,233 people), with hiring underway. Process efficiency and cost control are the angles that resonate with these decision makers.

Technical

This 534-person department is actively recruiting. Technical teams verify claims: public docs, a sandbox or a free tier will do the selling for you.

Sales

Hiring is underway in this team of 519 people. Sales leaders respect good selling: a sharp, well-researched approach is your best credential.

Project Management

A team of 426 people, currently hiring. Deadlines and cross-team coordination are the daily battle: position yourself on predictability and visibility.

Other

This 397-person department is actively recruiting. Hard to read from the outside: use a first exchange to map who does what before pushing an offer.

Trades

Hiring is underway in this team of 364 people. Decision makers here value practicality: a solution that works in the field beats an elegant dashboard.

FAQ Clean Harbors

What industry does Clean Harbors operate in?

Clean Harbors is active in the Environmental Services industry, specifically in the Professional Services category.

How many employees does Clean Harbors have?

Clean Harbors has approximately 10,001 employees (in the 10001+ range). This figure is an estimate to help qualify the account, not a legally certified number.

How do I find contacts at Clean Harbors?

Zeliq lets you identify decision makers at Clean Harbors, enrich their professional contact details (verified emails and direct phone numbers), and launch targeted multichannel prospecting sequences.

Where is Clean Harbors headquartered?

Clean Harbors is headquartered in United States.

Which departments are hiring at Clean Harbors?

Clean Harbors is actively recruiting in the following departments: Consulting, Customer service, Education. These hiring signals help you time your outreach.

Why use this data before prospecting Clean Harbors?

Knowing Clean Harbors's industry, headcount, and business signals lets you personalise your outreach, prioritise high-potential accounts, and reach the right decision makers from the very first contact.