Article by Richard Tyler, editor of The Times Entrepreneurs Network
In a recent interview with The Times, Q5D CEO Stephen Bennington shared the realities of scaling a deep-tech robotics company. Based in Bristol, Q5D develops automated wire harness manufacturing systems that bring precision, speed and supply chain resilience to industries including automotive, aerospace, defence and electronics.
Key lessons from the journey:
- Enterprise sales require patience. Winning large customers can take 12-18 months longer than expected, requiring persistence and relationships across multiple stakeholders.
- Investor communication matters. Maintaining trust through transparency, integrity and realistic optimism is essential when navigating long and often unpredictable sales cycles.
- Understand who the real customer is. Success often depends on navigating complex supply chains and aligning OEMs, suppliers and end users, not just selling to the biggest name in the industry.
- Revenue proves traction. While investment fuels growth, customer payments are the clearest sign that the market values your solution.
- Strategic investors create opportunities. Well-connected investors and channel partners helped Q5D establish credibility, navigate defence procurement and secure contracts with the US Army.
From a team of 40 in Bristol to supplying advanced manufacturing technology to the US Army, Q5D’s story highlights that deep-tech success is about more than breakthrough technology. It takes patience, strong partnerships, market understanding and relentless execution.

