Key facts
- ZwitterCo’s last known valuation is $200.0M.
- It has raised $101.8M across 4 recorded rounds; the latest was Early Stage VC ($33.4M) in Apr 2022.
- Notable investors include Plug and Play Tech Center, US National Science Foundation, U.S. Department of Energy, Greentown Labs, DCVC — 28 tracked in total.
- ZwitterCo has filed 9 Form Ds with the SEC since 2018, most recently May 2022 ($33.4M sold to 8 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 4 rounds
- ·The complete investor list — 28 names
- ·Watchlist + deal alerts for ZwitterCo
Funding rounds
4 roundsAbout ZwitterCo
Developer of reverse osmosis membrane technology designed for industrial water treatment. The company's technology allows for the reusing and recycling of water resources through its nanofiltration technology that stops the organic molecules causing fouling of RO systems and is chlorine-tolerant and back-washable while being resistant to irreversible fouling, enabling clients to make the treatment and reuse of wastewater streams economically viable.
- Sector
- Business Products and Services (B2B)
- HQ
- Woburn, MA, United States
- Founded
- 2018
- Employees
- 82
- Website
- zwitterco.com/
- Ownership
- Privately Held (backing)
ZwitterCo doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in ZwitterCo shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on ZwitterCo in its N-PORT filings yet. We sweep new filings monthly.