Sales by Scottish firms supporting the oil and gas sector reached a record of £15bn in 2008-09, a report says.
The survey examines the performance of Scottish-based firms supplying products and services to oil and gas companies.
It suggested revenue increased by more than 8% on the previous year, reaching a total of £15.4bn.
The Scottish Council for Development and Industry said the markets in Africa and North America now accounted for more than half of international sales.
The research, published by the SCDI and Scottish Enterprise, indicated that the firms had experienced "especially impressive" growth in international sales - with these rising 15.1% to £6.56bn.
SCDI north east manager Ian Armstrong said: "In a challenging year, the Scottish-based oil and gas supply chain performed strongly.
"The growth in international sales was especially impressive."
He said there was also strong growth in sales into Latin America and Australasia, while sales into the former Soviet Union and the European Union declined.
Iain Smith, the convener of Holyrood's economy, energy and tourism committee, also welcomed the report's findings.
He said the committee would be meeting in Aberdeen as part of its inquiry into international trade and exports.
"I will be keen to work with SCDI to hear from Scottish-based firms in the oil and gas sector whether the public sector is doing all that it can to support the industry to further develop its international activities," he added.