Company profile
HOME - Aqua21
AQUA21 Limited is a UK company with status active founded in 2010.
Financial period: 1 Jul 2023 to 30 Jun 2024
Reference milestones and recent Companies House filing stream events.
Next confirmation statement due date
Next accounts due date
AA | Transaction MzUyNzM4OTY4NGFkaXF6a2N4
Published 19 Jun 2026 17:40
Last confirmation statement made up date
Last accounts made up date
Company registered at Companies House
Founded by Trevor Costello, Aqua21 is a company dedicated to providing cheap ozone production systems to clean water at all scales, but in particularly at small scales suitable for local cleaning at point of use, and for use in disaster relief. The company approached me in 2010 to help design their ozone generators and sensors, and I used technical knowledge acquired whilst working on several grants to enable this... reducing cost and size of equipment be orders of magnitude.
Aqua21 develops and provides water treatment technology and solutions for various applications, including drinking water, industrial use, and agriculture.
Runner up in St Andrews environmental prize in 2012. The technology is presently being tested at Scottish Water.
1 Jun 2019 to 31 Aug 2022
This project is to develop a method of growing food crops based on a novel and soilless aeroponics system. It will allow crops to grow in long, low height, clean pest and pathogen-free enclosures using day light. It will also allow the production of beneficial mycorrhizal inoculants in axenic root organ cultures. The project will deliver novel cultivation...
1 Aug 2014 to 30 Nov 2014
Dissolved ozone is one of the most effective disinfectants available. The measurement of dissolved ozone is however either costly or only available offline. The capital cost of measurement currently outweighs the cost of ozone production. If an online, real-time system of measurement was available, the benefits of ozone disinfection would be come availabl...
1 Nov 2012 to 31 Mar 2013
Recognising the water/energy/carbon nexus, Aqua21 will explore the opportunity to dramatically reduce carbon generation and costs for building operators through the introduction of its new low power ozone disinfection treatment technology across a range of building types.
