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AESSEAL

Sector Industrial
Year invested 2007
Location UK
Status Current

AESSEAL designs and manufactures sealing solutions for a sustainable future. Its mechanical seals are used in a variety of pumps and rotating equipment worldwide to prevent liquids and gases escaping into the environment. Through its AVT Reliability division, AES also provides products and services to assist clients with asset reliability, condition monitoring and proactive maintenance.

Visit asseal.co.uk

Overview

AES’ mechanical seals are used in a variety of pumps and rotating equipment worldwide to prevent liquids and gases escaping into the environment. A wide range of mechanical seal types are manufactured to suit different industries and the significant investment made in modular design means that AES provides the best on-time delivery performance in the industry. The AESSEAL® range of seals, seal support systems and bearing protectors are designed to improve reliability and reduce maintenance costs of rotating equipment.

The business is focused on giving customers such exceptional service that they need never consider alternative sources of supply.

How we add value

We have supported AES to establish a strong international position across a number of end-user markets, including the most arduous Oil & Gas applications. AES' success also derives from its exceptional customer service based on the world's most comprehensive inventory portfolio and advanced integrated manufacturing.

3i and AES have collaborated on developing and executing the key strategic drivers for the business, namely Reliability, digital, M&A and internationalisation and sustainability, all of which have shown strong development. AES has completed >30 acquisitions over the past 20 years, significantly increasing both its offering and international footprint. Sustainability and a clear focus on Net Zero Carbon are at the heart of the AES strategy across all levels and the company held the official opening of its 'Factory of the Future' in September 2025. AES' 16 Queen’s / King's Awards to-date is testament to its commitment to this strategy.

3i has been a great partner over nearly two decades. They understand what it takes to grow a great, international business; they both support us in that mission and challenge us to be the best we can.

Chris Rea, OBE , Founder and Managing Director