DCI vs TECH Comparison

Donaldson is a leading manufacturer of filtration systems and replacement parts (including air filtration systems, liquid filtration systems, and dust, fume, and mist collectors). The company serves a diverse range of end markets, including construction, mining, agriculture, truck, and industrial. Its business is organized into three segments: mobile solutions, industrial solutions, and life sciences. Donaldson generated approximately $3.7 billion in revenue in its fiscal 2025.

Based in Minnesota, Bio-Techne is a life sciences manufacturer supplying consumables and instruments for the pharma, biotech, academic, and diagnostic markets. It reports in two segments: protein sciences (about 75% of revenue) and diagnostics and genomics (25%). The protein sciences segment sells reagents and analytical instruments used in life sciences research, including antibodies used in protein analysis. The diagnostics and genomics segment sells diagnostic reagents, molecular diagnostics, and spatial biology products. The United States accounts for about 55% of revenue. The firm also has operations in Europe, the Middle East, and Africa (20% of sales), the UK (5%), and Asia-Pacific (15%), with the rest of the world accounting for the remaining 5%.