Callen-Lenz is a UK-based leader in the design, prototyping, development, advanced avionics, systems integration and manufacture of novel Uncrewed Aerial Systems (UAS). Our expertise in platform design ranges from multi-rotor to fixed wing of up to 150kg MTOW, utilising electric, hybrid, internal combustion, and jet engines. Our solutions are interoperable and reliable across diverse mission requirements. Capability proven with over 5,000+ operational hours in austere and contested environments across civil and military domains worldwide.
Founded
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UAS systems built
Our mission
To deliver innovative, safe, and adaptable UAS through next-generation design, in-house engineering excellence, and operational expertise, empowering civil and military customers to meet complex mission challenges with confidence and precision.
Our vision
To be a global leader in innovative UAS, delivering interoperable, reliable, and signature-managed platforms that redefine mission capabilities across civil and military domains. We aim to advance the frontiers of UAS technology through next-generation design, integration, and operational excellence, enabling safer, smarter, and more efficient solutions for the challenges of today and tomorrow.
Innovation - Pioneering the future
- Thinking beyond boundaries
- Creating actions from ideas
- Driving continuous improvement
- Having the courage to challenge
- Learning from setbacks
Integrity - Doing the right thing
- Putting safety first
- Acting with respect and fairness
- Championing a culture of trust
- Taking ownership
- Demonstrating ethical and moral responsibility
Excellence – Raising the bar
- Holding ourselves and others to high standards
- Seeking to learn and improve
- Prioritise quality over convenience
- Building strong relationships
- Going the extra mile
Collaboration – Further together
- Valuing every voice
- Influencing through positivity
- Giving and receiving feedback with care
- Supporting others in achieving shared goals
- Listening and communicating with intent
Platforms
We are specialists in the rapid development of platforms including multi-rotor, fixed-wing, electric, hybrid, internal combustion and jet. We develop platforms to perform in a variety of highly contested and challenging environments based on operational experience alongside our civil and defence partners.
Koios
Products
Our multi-disciplinary teams provide OEM avionics system design, payload integration, and support across the aerospace domain, including autopilots, flight control systems, platform management computers, and ground control stations. This capability enables us to rapidly adopt new technologies while remaining cyber secure.
Technical services
We have extensive knowledge and credible experience across crewed and uncrewed aircraft design, development, manufacture, production, delivery, test and evaluation and regulatory compliance. We offer our customers unbiased advice and support to optimise programmes, reduce risk and deliver pioneering technical solutions.
Platform development
Operational services
We have a history of delivering reliable, repeatable, international UAS operations since 2008. The rapid evolution of UAS capabilities and integrations is often best exploited as a ‘capability as a service’. To help clients achieve mission success, we offer planning, commissioning and execution of operational services in challenging environments globally.
Manufactured in the UK
We are proud of our contributions to the technology industry and the local Wiltshire economy. We take pride in being a UK company and understand the significance of relationships and collaborative knowledge sharing to push the boundaries of aviation.
Our UAS are 100% assembled in the UK with up to 70% of components sourced within the UK from British suppliers. We operate on a carefully selected supply chain that is built on strategic relationships, transparency, sustainability, and quality to achieve ongoing world class supply chain excellence.
Our ability to scale at operational pace is world class.
Sustainability
We source our components from local suppliers to ensure we maintain a low carbon manufacturing footprint by using suppliers that are predominantly based in the UK and EU, with a strong focus on last mile logistics.
Strategic partnerships
Our strategic partnerships enable us to develop best-in-class solutions. We recognise that, for our pioneering technology to be at the forefront of the market, it is critical that technological advancements are made throughout both our local and global supply chain.
Quality control and compliance
We follow a quality control and audit process to ISO9001 and are JOSCAR approved.