ECL vs ORLY Comparison

Ecolab produces and markets cleaning and sanitation products for the industrial manufacturing, data center, hospitality, healthcare, and life sciences markets. The firm is the global market share leader in this category with a wide array of products and services, including dish and laundry washing systems, pest control, and infection control products. Additionally, Ecolab sells customized water management and cooling solutions across its end markets. The company has a strong hold on the US market and is growing its presence abroad.

Founded in 1957, O'Reilly Auto Parts is one of the largest specialty retailers of automotive aftermarket parts, tools, supplies, equipment, and accessories, serving both DIY and professional customers. The company operates nearly 6,600 stores across 48 US states, Puerto Rico, Mexico, and Canada. In fiscal 2025, O'Reilly generated nearly $18 billion in sales, with its dual market strategy yielding a balanced revenue mix, split between retail DIY customers (49%) and professional service orders (49%). The balance of its sales is derived from noncore categories, including wholesale distribution to independent parts distributors, heavy-shop equipment sales, and value-added services.