Compliance Status
Doubtful
Screened on Oct 13, 2026 · AAOIFI Standard 21
Acceptable
Is Energy Recovery, Inc. (ERII) halal? Doubtful. Based on AAOIFI screening, Energy Recovery, Inc. passes the business activity screen but has financial ratios approaching AAOIFI limits with a compliance score of 63/100 (Grade: B).
Quote this verdict
HalalScreener rates Energy Recovery, Inc. (ERII) Doubtful, 63/100, grade B under AAOIFI Standard 21, screened Oct 13, 2026. Source: https://halalscreener.app/en/stock/ERII
Business activity
What the company sells is permissible.
Company debt
Well clear of the limitHow much the company borrows, compared to its total value. AAOIFI allows up to 30%.
The verdict above is final and free.
Pro members can verify every number behind it: interest-bearing deposits, prohibited income breakdown, and the full AAOIFI math.
Screened according to AAOIFI Standard 21
What this means for you
You may own ERII, with caution
Its numbers sit close to AAOIFI limits. Cautious investors may prefer alternatives or ask a scholar first.
Purification amount is Pro
We have screened ERII's prohibited income, but the exact share you would need to purify is part of Pro.

ERII: Is Energy Recovery, Inc. Halal?
Energy Recovery, Inc.
$6.65
Market Cap: 339.4M
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About Energy Recovery, Inc.
Energy Recovery, Inc. (ERII) is a global technology firm that engineers, manufactures, and distributes cutting-edge solutions predominantly for the seawater reverse osmosis (SWRO) desalination and industrial wastewater treatment industries. The company manages its operations through two distinct divisions: Water and Emerging Technologies. Its extensive product range includes advanced energy recovery devices, high-pressure feed and recirculation pumps, and hydraulic turbochargers and boosters. Beyond hardware, ERII also offers crucial support services such as spare parts, repair, field technical assistance, and commissioning. Furthermore, the company develops specialized solutions aimed at minimizing energy consumption in natural gas processing and in refrigeration systems that employ carbon dioxide. These various offerings are commercialized under recognized brand names including ERI, Ultra PX, PX, Pressure Exchanger, PX PowerTrain, VorTeq, IsoBoost, AT, and AquaBold. Its diverse customer base encompasses large engineering, procurement, and construction (EPC) companies, direct end-users, industry consultants, original equipment manufacturers (OEMs), and aftermarket clients. Founded in 1992, Energy Recovery, Inc. is headquartered in San Leandro, California.
Sector: Industrials · Industry: Industrial - Pollution & Treatment Controls
Why This Stock Is Doubtful
- Interest-bearing deposits are close to the 30% limit.
Stocks are marked Doubtful when financial ratios pass but approach AAOIFI thresholds. Consider consulting a qualified scholar for a definitive ruling.
Shariah Compliance Status
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The verdict above is final and free.
Pro members can verify every number behind it: interest-bearing deposits, prohibited income breakdown, and the full AAOIFI math.
Screened according to AAOIFI Standard 21
Compliance History
Doubtfulnow
since Sep 2026
Halal
until the change above
Not Halal
until the change above
Halal
until the change above
Not Halal
until the change above
Halal
until the change above
Tracked since Jun 2026. Updates automatically on each re-screen.
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Frequently Asked Questions
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Screened according to AAOIFI Standard No. 21 · For informational purposes only. Consult a qualified Islamic finance advisor before investing.
Disclaimer: This screening is for informational purposes only and does not constitute financial, legal, or religious advice. Compliance is evaluated using AAOIFI financial standards (debt, deposits, and prohibited income ratios) and publicly available data. Ethical, political, social, or environmental considerations are outside the scope of this screening. Individual scholars and methodologies may differ. Always consult a qualified Islamic finance advisor before making investment decisions.