Companies in Scotland provided goods and services worth almost £150 million to the Eurofighter Typhoon programme last year.
The vast majority of the cash, more than £146m, went to radar specialist Selex, which has a major base in Edinburgh.
The firm, part of the Finmeccanica group of companies, provides a range of electronic and information technologies for defence and aerospace systems.
WL Gore, best known for the Gore-Tex fabrics used in outdoor clothing, also benefited from the combat jet programme as a supplier of cable and wiring.
The firm has a major presence in Livingston and also has a base at Dundee Technology Park.
In total the four-nation consortium behind the Eurofighter project procured £147.8m of goods from a total of 18 firms in Scotland last year.
The UK spend on the planes, a squadron of which has recently switched from RAF Leuchars in Fife to RAF Lossiemouth in Moray, amounted to around £690m.
Chris Boardman, managing director of BAE Systems Military Air and Information business, said the figures underlined the importance of the Typhoon programme to the UK economy.
He said: “When we see one of the RAF’s elite pilots take to the air in a Typhoon, it is the collective achievement of thousands of people across the country whose day-to-day jobs make it happen.
“From Leith in Scotland to Christchurch on the south coast and Cambridge in the east right out to Tewkesbury in the south west, the programme is supporting highly-skilled people which make our supply chain tick.”