ZwitterCo
Cambridge, US · Founded 2018 · Delaware corporation · 83 employees on LinkedIn · 6 known investors
ZwitterCo develops zwitterionic anti-fouling membranes that resist organic fouling for filtration of industrial wastewater and process streams. Its products serve dairy and food & beverage processors, biotechnology companies, grain processing/biorefining, and landfill leachate treatment for water reuse and product recovery.
Founders & leadership
ZwitterCo was founded in 2018 by Alex Rappaport.

Board
Investors · 6
Reported raises · per SEC filings
Form D private placements$42.4M disclosed across 4 rounds · 2018–2022
▶$33.4MraisedMay 2022 · 8 investors · OtherRule 506(b)
- JASON PONTINDirector
- ALEX RAPPAPORTExecutive Officer, Director
- CHRISTOPHER DROVERExecutive Officer
- STEVE REMONDIDirector
- H. EARL JONESDirector
- GREG FISICHELLIExecutive Officer
- Offering amount
- $33.4M
- Amount sold
- $33.4M
- First sale
- Apr 2022
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
▶$5MraisedSep 2021 · 4 investors · OtherRule 506(b)
- Earl JonesDirector
- Alex RappaportExecutive Officer, Director
- Stephen RemondiDirector
- Offering amount
- $5M
- Amount sold
- $5M
- First sale
- Aug 2021
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
▶$1.9MraisedOct 2020 · 9 investors · OtherRule 506(b)
- Alex RappaportExecutive Officer, Director
- Steve RemondiDirector
- Earl JonesDirector
- Offering amount
- $3.5M
- Amount sold
- $1.9M
- First sale
- Oct 2020
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
▶$2.2MraisedApr 2020 · 36 investors · OtherRule 506(b)
- Alex RappaportExecutive Officer, Director
- Stephen RemondiDirector
- Offering amount
- $3M
- Amount sold
- $2.2M
- First sale
- Jul 2018
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Founder mafia
3 people who came through ZwitterCo went on to found or lead other companies.
Competitors · 2
by search overlapCompanies competing with ZwitterCo for the same Google search keywords, organic and paid, via search-intersection analysis.
Frequently asked questions
- What does ZwitterCo do?
- ZwitterCo develops zwitterionic anti-fouling membranes that resist organic fouling for filtration of industrial wastewater and process streams. Its products serve dairy and food & beverage processors, biotechnology companies, grain processing/biorefining, and landfill leachate treatment for water reuse and product recovery.
- Who founded ZwitterCo?
- ZwitterCo was founded by Alex Rappaport in 2018.
- Who are ZwitterCo's investors?
- ZwitterCo's investors include Bantam Group, BURNT ISLAND VENTURES, DCVC (Data Collective), Genoa Ventures, HG Ventures, Munich Re Ventures.
- How much funding has ZwitterCo raised?
- ZwitterCo has disclosed $42.4M raised across 4 rounds.
- Where is ZwitterCo headquartered?
- ZwitterCo is headquartered in Cambridge, US.









