Aker Solutions said revenue fell in the third quarter of the year to NOK 7.5billion compared to NOK 8.3billion in 2014.
The company said the fall was amid a decline in demand for subsea services, particularly in the North Sea.
Earnings before interest and taxes (EBIT) were NOK 329million compared with NOK 460million.
Aker said results were impacted by restructuring costs as well as “onerous lease costs” on vacated office space in Norway, the UK and Asia.
Headcount reductions are expected to total more than 10% of the global workforce this year and about 15% since July last year.
Las month the company said it was reducing its North Sea headcount by around 70 people.
Good progress meanwhile was made on projects in from Africa to Norway as well as Brazil.
Aker also won NOK 4billion in orders for the quarter including a subsea production system for the Rotan deepwater natural gas development offshore Malaysia.
The company also won an order for a high-pressure riser system in Japan to test production of deepwater methane hydrates which was secured as a result of work by the subsea production alliance
formed with Baker Hughes last year.
Luis Araujo, chief executive officer at Aker Solutions, said: “We have shown consistently strong execution quarter by quarter this year and we are seeing the benefits of improvement programs across the business.
“Our solid order backlog, growing international presence and strong financial position stand us well as we face continued market uncertainty with many of our customers scaling back spending.”
Aker also completed its delivery of the world’s first subsea gas compression system, which went on-stream in September, at the Statoil-operated Asgard field.