Design and engineering consultancy Scott Wilson reported a 5% decline in adjusted pre-tax profit but while UK markets remain weak, it expects growth in its international markets.Adjusted profit before tax fell to £10.8m for the 26 week period ended 1 November 2009 from £11.4m the year before. Revenue, including share of joint ventures, fell to £170.5m during the period from £180.4m a year earlier.In a company statement chairman Geoff French said, "Although the UK market remains relatively weak, the company has benefited from the government's ongoing commitment to roads and railways and its focus on renewable energy due to our expertise in those areas."He added, "The international business continues to go from strength to strength, reflecting the benefits of years of investment outside the UK and the brand recognition we have established in key regions together with the new management structure we have implemented globally."Scott Wilson has maintained its order book at £280m, which represented 95% of its revenue for the financial year. Around £100m of revenue has already been secured."Notwithstanding the economic uncertainty, our diversified business model, strong order book and financial strength continue to give us confidence that we can respond effectively to market developments and opportunities as they arise," the group said. The interim dividend has been maintained at 1.33p.