Fundraising Fox

Compact Membrane Systems

New Castle, US · Delaware corporation · 5 known investors

Founders & leadership

EN
Erica NemserinExecutive
BC
Bill CharltonNamed on SEC filing
BN
Bennett NemserNamed on SEC filing

Board

GR
Guido RadaelliBoard director
CE
Chris EricksonBoard director
TS
Tony SunBoard director

Investors · 5

Chevron Technology VenturesreportedHouston
Pangaea VenturesreportedScottsdale

Also in the syndicate · 3

GC VenturesSolvay VenturesTechnip Energies

Reported raises · per SEC filings

Form D private placements

$26.8M disclosed across 2 rounds · 2023–2025

▶$10.3MraisedDec 2025 · 4 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Guido RadaelliDirector
  • Chris EricksonDirector
  • Tony SunDirector
  • Erica NemserExecutive Officer, Director
Offering amount
$20M
Amount sold
$10.3M
First sale
Nov 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$16.5MraisedAug 2023 · 5 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Erica NemserExecutive Officer, Director
  • Bill CharltonExecutive Officer
  • Chris EricksonDirector
  • Bennett NemserDirector
Offering amount
$18.9M
Amount sold
$16.5M
First sale
Apr 2023
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Non-dilutive funding · 50+ SBIR/STTR awards

Federal grants — no equity taken
AgencyPhaseYearAmount
Department of EnergyPhase I2021$250K
Department of EnergyPhase IISTTR2019$1.1M
National Institutes of Health (NIH)National Institutes of HealthPhase I2019$225K
Department of EnergyPhase I2019$150K
Department of Agriculture (USDA)Phase I2019$106.5K
National Institutes of Health (NIH)National Institutes of HealthPhase II2018$1.3M
Department of EnergyPhase II2018$1M
Department of EnergyPhase I2018$150K
Department of EnergyPhase I2018$150K
Department of EnergyPhase I2018$150K
Department of EnergyPhase II2017$1M
Department of Agriculture (USDA)Phase II2017$600K
Department of EnergyPhase I2017$155K
Department of Agriculture (USDA)Phase I2017$100K
National Institutes of Health (NIH)National Institutes of HealthPhase II2016$1.7M
Department of EnergyPhase II2016$1M
Department of Agriculture (USDA)Phase II2016$600K
Department of EnergyPhase I2016$150K
Department of Agriculture (USDA)Phase I2016$100K
Department of Health and Human ServicesAdministration for Community LivingPhase I2016$75K
Department of EnergyPhase I2015$150K
Department of EnergyPhase I2015$150K
Department of Agriculture (USDA)Phase I2015$100K
Department of EnergyPhase II2014$998.2K
Environmental Protection Agency (EPA)Phase II2014$300K
Department of EnergyPhase I2014$225K
Department of EnergyPhase I2014$150K
NASAPhase I2014$125K
Department of Agriculture (USDA)Phase I2014$100K
Department of Agriculture (USDA)Phase I2014$100K
Department of EnergyPhase II2013$998.4K
National Institutes of Health (NIH)National Institutes of HealthPhase I2013$240.6K
National Institutes of Health (NIH)National Institutes of HealthPhase I2013$225K
Department of EnergyPhase I2013$150K
Department of EnergyPhase I2013$150K
Environmental Protection Agency (EPA)Phase I2013$80K
Department of Agriculture (USDA)Phase II2012$450K
Department of EnergyPhase I2012$150K
Environmental Protection Agency (EPA)Phase I2012$80K
National Institutes of Health (NIH)National Institutes of HealthPhase II2011$1M
Department of EnergyPhase II2011$999.8K
Department of EnergyPhase II2011$998.2K
Department of EnergyPhase IISTTR2011$750K
Department of Agriculture (USDA)Phase II2011$460K
Department of Agriculture (USDA)Phase II2011$460K
National Institutes of Health (NIH)National Institutes of HealthPhase I2011$399.9K
National Institutes of Health (NIH)National Institutes of HealthPhase I2011$396.1K
National Institutes of Health (NIH)National Institutes of HealthPhase I2011$167K
National Institutes of Health (NIH)National Institutes of HealthPhase I2011$161.7K
Department of EnergyPhase I2011$150K

Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.

In the news

Troutman Pepper Advises Compact Membrane Systems in Oversubscribed Series A Funding Round - Troutman Pepper Locketroutman.com · Aug 2025After flirting with Houston, Compact Membrane Systems commits to Delaware with new HQ and plans to hire - Philadelphia Business Journalbizjournals.com · Feb 2024Revolutionizing Carbon Capture: Compact Membrane Systems Secures $16.5 Million Series A Fundingswansonreed.com · Sep 2023Compact Membrane Systems raised $16.5M in an oversubscribed Series A - Technical.lytechnical.ly · Aug 2023Compact Membrane Systems Raises $16 Million Series A | citybizcitybiz.co · Aug 2023Compact Membrane Systems Raises Oversubscribed Series A Round to Develop Revolutionary Carbon Capture Technology - Compact Membrane Systemscompactmembrane.com · Aug 2023

Frequently asked questions

Who are Compact Membrane Systems's investors?
Compact Membrane Systems's investors include Chevron Technology Ventures, Pangaea Ventures.
How much funding has Compact Membrane Systems raised?
Compact Membrane Systems has disclosed $26.8M raised across 2 rounds.
Where is Compact Membrane Systems headquartered?
Compact Membrane Systems is headquartered in New Castle, US.