Is Donaldson Stock (DCI) Halal? A Complete Analysis

The Short Answer

Donaldson stock (DCI) is generally considered halal by most Islamic scholars and Sharia screening criteria. Donaldson Company is one of the largest publicly-traded global manufacturers of filtration systems and replacement parts.

Filtration-systems manufacturing, engine-and-industrial-air-filtration manufacturing, replacement-filter-parts manufacturing, and bioprocessing-and-life-sciences-filtration are unambiguously permissible at the activity level under standard Sharia methodology. The financial screen passes comfortably.

Sharia Screening Methodology

Islamic scholars use several criteria to screen stocks:

• Business activity screen: Is the company's primary business halal?
• Debt ratio: Total debt / market cap must be under 33%
• Interest income: Interest income / total revenue must be under 5%
• Haram revenue: Revenue from haram sources must be under 5%
• Receivables ratio: Total receivables / total assets must be under 49–70% (varies by board)

Donaldson's Business Activity

Donaldson is organized into three reporting segments:

• Mobile Solutions: The largest segment — engine-and-vehicle filtration products including air-filtration, fuel-filtration, lube-filtration, and hydraulic-filtration systems and replacement-filter aftermarket parts for on-road-and-off-road vehicles, construction-and-agricultural equipment, mining equipment, and commercial-vehicle fleets
• Industrial Solutions: Industrial dust-fume-and-mist-collection systems, gas-turbine-filtration systems, and process-filtration products for industrial-air and industrial-process applications
• Life Sciences: Food-and-beverage filtration, bioprocessing-and-bio-pharmaceutical filtration, disk-drive-and-microelectronics filtration, and the growing bioprocessing-membrane-and-single-use-filtration franchise

Donaldson generates a substantial and stable share of revenue from high-margin recurring replacement-filter aftermarket sales.

Concerns to Be Aware Of

1. Minor Interest Income

Donaldson operates an investment-grade balance sheet with low net leverage and a long dividend-growth track record. Minor interest income on cash balances means purification of a small portion of dividends may be advisable.

2. Defense-Vehicle Platform Exposure

A small share of Mobile Solutions filtration products is sold into defense-and-military vehicle platforms. Defense-and-military end-use is a minority component within a broadly commercial-and-industrial filtration franchise. Under standard Sharia screening methodology, the relevant industry classification is general-purpose industrial-filtration-manufacturing.

3. Leverage Profile

The debt-to-market-cap ratio should be re-verified against the 33% Sharia threshold at the time of investment, particularly following debt-funded acquisition activity in the Life Sciences bioprocessing franchise.

Financial Ratios (2025)

Based on Donaldson's most recent financial statements:

• Total Debt / Market Cap: Well under 33% — low net leverage ✅
• Interest Income / Revenue: Well under 5% ✅
• Haram Revenue: Minority defense-vehicle exposure — negligible ✅
• Business Activity: Permissible industrial-filtration-manufacturing ✅

Verdict from Major Screening Agencies

Donaldson stock is generally screened as compliant (halal) with purification by:

• Zoya App — Compliant with purification ✅
• MSCI Islamic criteria — Generally included ✅
• Most major Sharia advisory boards — Compliant with purification of small interest-income component ✅

Bottom Line

Donaldson Company (DCI) is generally halal with purification for Muslim investors. The core business — filtration-systems manufacturing — is unambiguously permissible at the activity level, and the financial screen passes comfortably on a low-leverage balance sheet.

For Muslim investors seeking industrial exposure, DCI sits alongside other halal-screened industrials like Xylem (XYL), Pentair (PNR), and Dover (DOV).