This falls under the “water / wastewater membrane technology” space, which is relevant if you’re tracking water-treatment or specialty-chemicals themes in India.

1. Major domestic membrane manufacturers (India-based production)

These are companies that actually manufacture RO/UF/NF/MF membranes in India (not just trade or assemble systems):

- Ion Exchange (India) Ltd – HYDRAMEM (listed)

- Integrated membrane manufacturing unit at Verna, Goa – produces RO, NF and UF membranes under the Hydramem brand, positioned as a state‑of‑the‑art, fully integrated plant. (ionexchangeglobal.com)

- This is the most prominent listed Indian name with in‑house membrane manufacturing capability.

- Osmotech Membranes Pvt. Ltd. (Rajkot, Gujarat)

- Manufactures flat‑sheet RO, UF, NF and MF membranes, as well as spiral elements, for industrial, municipal and domestic applications from its plant at Rajkot. (osmotechmembranes.com)

- Uniqflux Membranes (Pune, Maharashtra)

- Produces TFC RO flat‑sheet membranes and hollow‑fibre UF/MF membranes at Pune. Technology is licensed from CSIR‑CSMCRI (Govt. of India lab). (uniqfluxindia.org)

- Membrane Hitec (Chennai, Tamil Nadu)

- One of the early Indian producers of capillary‑type ultrafiltration (UF) membranes, with over two decades in UF manufacturing and deployment. (membranehitec.com)

- Other domestic manufacturers / brands (unlisted, typically smaller or regional)

- Examples include:

- Greenly Water Technologies (Chennai) – RO/UF/NF/MF membrane elements. (greenly.co.in)

- Various private players listed in industry directories (e.g., Osmotech, Hitech Sweet Water Technologies, etc.), many focusing on domestic/industrial RO elements. (romegamart.com)

(Names above are examples, not an exhaustive list and not stock recommendations.)

---

2. Global membrane brands with strong India presence

These players are not necessarily manufacturing in India, but have significant sales/distribution here and are key competitors to Indian membrane makers:

- DuPont (FilmTec, Inge UF)

- Toray

- Hydranautics (Nitto Group)

- LG Chem

- Pentair X‑Flow, etc. (romegamart.com)

They typically supply high‑performance RO/NF/UF modules used in large desalination, municipal and industrial plants across India, often via local distributors or EPC partners.

---

3. From a stock‑market perspective (Indian listed exposure)

If you are looking at this primarily as an investment theme:

- Direct Indian membrane manufacturer (listed):

- Ion Exchange (India) Ltd – via its Hydramem manufacturing unit; gives the most direct domestic listed exposure to membrane manufacturing itself. (ionexchangeglobal.com)

- Water/EPC players that use membrane systems (not primary manufacturers):

- VA Tech Wabag, Thermax, and other water‑treatment EPC companies implement RO/UF/NF‑based plants, but largely as system integrators, sourcing membranes from both Indian and global manufacturers. (angelone.in)

These mentions are for sector mapping only, not buy/sell advice.

---

If you have any further queries, please connect with us on 022-6290-10141 (Timings : 09.00 AM to 05.00 PM) or you can email us on info@cniinfoxchange.com