Leicestershire-based company TEK4 Group Plc, reported revenues of £16.2m in 2026, almost twice last year’s figure, with net assets of £5.2m. The company is looking to branch into new areas such as medical devices. There are also plans to increase its production capability at the Leicestershire plant.
The precision engineering business designs and manufactures hole-drilling systems for the aerospace industry. TEK4 has successfully navigated the difficult engineering sector, and has managed to create a profitable business. It’s a niche market, relying on a small number of major customers.
Small but mighty, the company makes equipment for the world’s largest manufacturers of turbines and jet engines. Its client base includes Siemens Energy and Rolls Royce, with sales across markets in supplying markets Europe, the United States, Mexico, Japan, and South Korea.
Building for its future, TEK4 bought Innolas in April 2026, an advanced laser technology specialist company. This increases opportunities in other fields such as semiconductors and medical devices.
Founded by Jason Duffin in 2002, the engineer has spent decades developing special process technology for Gas Turbine component manufacture. He was the co-founder of MJ Technologies Ltd and remained as MJT’s managing director until 2001. He then started up the company TEK4. His goal for the company was to come up with solutions to long-standing manufacturing issues, rather than gain traction in the over-crowded market place for machine tools.
“As the aerospace and power-generation industries seek to produce engines that operate at higher temperatures, more efficiently and for longer, the importance of the technology sitting behind their cooling systems is constantly increasing. Our technology and IP positions us at the heart of addressing this challenge,” Jason Duffin, founder and CEO of TEK4, said.
There are further expansion plans for the future, with a second production site slated to open in 2027. The plant will be 12,000 sq ft in size, giving a 75% larger capacity which will allow greater volumes in production and also integrate in Innolas, the recent acquisition.
The aerospace industry in the UK employs 108,000 people and 5,200 apprentices. It’s an important sector, with a turnover of £27bn and exports amounting to £18bn, according to ADS, the UK trade association advancing leadership in aerospace, defence, security and space.
