Skip to content
About Us

About Us

The world’s leading innovator in the design and manufacture of engineered polymer components and solutions

Relationships
Dependability
Teamwork
Respect
Leadership
Innovation

Who are we?

Based in Northern Ireland, and still a family owned business, Denroy Limited is a leading injection moulding manufacturer with over 50 years of experience and expertise in research and technology, design, prototyping, manufacturing and quality assurance, for supplying precision industries such as Medical, Aerospace, Defence, Automotive, Commercial and Brushes.

Founded in 1972 and privately owned by the Rainey family, the group consists of three brands: Denroy, Denman (haircare) and DenPro (medical). Both Max Rainey OBE and Dr John Rainey MBE have been recognised in the Queen’s Honours List for their outstanding contributions to Economic Development in Northern Ireland.

The Denroy Group operates over 2 main sites and recently dramatically increased the overall factory footprint with a new manufacturing facility extension. A new distribution centre was also built as an additional warehousing and materials storage facility.

Design

Our design team works in close partnership with clients to develop initial design concepts or to take existing designs and make them suitable to manufacture via the injection moulding process.

Research & Technology

We work with partners in industry to develop new and innovative processes, concepts and components for complex aerospace and defence applications. 

Prototyping

Denroy has advanced capabilities in 3D printing thermoplastics. We have SLA and FDM printers and can make parts in various materials and sizes meaning we can cover a huge variety of applications.

Manufacturing

With investment plans in place, Denroy continues to increase capacity and capabilities throughout the business, including new machining centres, Engel moulding machines and white-room facility.

Quality

Our continuous improvement initiatives, process monitoring equipment and purpose built MRP system help to minimise waste, reduce manufacturing lead times and ensure quality product every time.

Who we work with
Awards

Denroy is one of the few companies worldwide to hold the ADS 21st Century Supply Chains Gold Award (SC21 Gold). Other notable accreditations include AS/EN9100, ISO9001, IAQG, BS8555 and EFQM 6 star for organisational performance. When it comes to leadership and management performance, we have also been awarded the Deloitte Best Managed Companies 2019 and received the Diversity Mark.

Our History
1971
Max Rainey teams up with Billy Martin
Denroy purchase Ulster Plastics who were going into administration and Denroy Plastics was established. Billy Martin later returned to his existing business, Brett Martin.
1974
Production in Denroy
Denroy, based at Clandeboye Road, Bangor, doubled in production size and the company started exporting with its main export product at this time being the Denman brush, a product that sister company Denman now exports to over 60 countries worldwide.
1980
Denroy's Balloo site
Denroy’s Balloo site, now Denroy Plastics HQ, was opened. The site now manufactures for the Aerospace, Automotive, Medical and Defence industries as well as for our sister company, Denman.
1988
Daewoo
Denroy start moulding for Korean Video manufacturer Daewoo.
1990
Denroy Exports
Following rapid growth of Denman exports to Japan and the US, Denman Inc. opens in Boston, USA. Denroy start manufacturing Boots hairdryers which went on to be a very successful product for the company through the 90s
1992
Hyster-Yale
Denroy started supplying Hyster-Yale forklift trucks which has continued to develop as a key customer for the company
1995
British Aerospace Injection Moulding
During a re-structuring Denroy took over all injection moulding from British Aerospace, seeing the company start supplying major programs such as Airbus A320, Hawk and Tornado.
1998
Denroy Plastics & Denman
Denroy separated into two main businesses, Denroy Plastics and Denman.
1999
Twin-Shot Machines
Denroy installs its first twin-shot machines
2003
Eurofighter Platform
Denroy is selected as the main thermoplastics supplier to the Eurofighter platform, supplying over 180 different components to the fighter jet
2007
Production for Denroy Group
All production in the Denroy Group was moved to Denroy Plastics at Balloo.
2010
Bombardier Partnership
Denroy works with Bombardier Aerospace to develop Electrostatically Dissipative PEEK brackets for the C-Series platform, now the Airbus A220.
2016
Research & Technology
Denroy formalises its commitment to Research and Technology by opening its new R&T department.
2018
Boeing Approved Supplier
Denroy begins the qualification process to become a Boeing approved supplier.
2019
Wing of Tomorrow
Denroy signs a collaborative research agreement with Airbus to work on the Wing of Tomorrow.
2020
Denpro Brand Launch
Denroy launches DenPro brand and begins assembly of FFP3 masks to support frontline workers during the Covid-19 pandemic
2021
Award Winning Denroy
Denroy achieves EFQM 6 Star Award for demonstrating an indisputable track record of success in turning strategy into action and the continuous performance improvement.
2022
50 years and still going strong
Denroy celebrates 50th anniversary. Still a family-owned business, Denroy Limited is a leading injection moulding manufacturer for supplying precision industries such as Medical, Aerospace, Defence, Automotive, Commercial and Brushes.
2023
Environmental Social Governance
ESG Strategy
Denroy launches Environmental Social Governance (ESG) strategy and make a commitment to building a long-term sustainable business.