Results for the year to August 13 2012 lodged at Companies House show turnover for the group of £23m.
Sales are up on last time when Altrad NSG had a turnover of £26m for the 16-month period to August 2011.
Michael Carr, Managing Director of Altrad NSG, said: “The last financial period has been a success for the Altrad NSG group in terms of trading performance.
“We now employ 500 people across the UK, whilst maintaining the highest standards in health and safety.
“The strategic acquisition of the MTD companies – allied to the award of new contracts for Altrad NSG and an increase in our service provision to include rope access work – has produced a combined turnover for the Altrad NSG group of over £23m during the period to August 2012, returning strong underlying operating profits and a combined fixed asset spend of over £1.5m in the period.
“A large proportion of this investment was in the market-leading Contur system scaffold product which is manufactured within the Altrad group.
“Altrad NSG Limited and its subsidiaries are one of the leading users of what is the most modern, flexible and secure system scaffold available.”
Altrad NSG works with a range of blue chip construction clients, providing scaffolding and rope access systems, insulation, painting, coatings, blasting and industrial cleaning.
Core sectors include on and offshore oil and gas, petrochemical, pharmaceutical, power generation (including nuclear), steel production, shipbuilding, rail and civil infrastructure.
In 2011 the business was purchased by French based multinational Altrad SA.
Carr added: “With the support of our parent company Altrad SA which has over 70 subsidiaries worldwide, NSG is well positioned to continue to grow and trade profitably throughout the current financial year.”