The Midlands-based contractor said its profit margin has also been maintained at around 5%.
MCS Group is now looking to expand in new sectors outside its traditional specialisms in industrial, storage and distribution work.
Commercial director Alan Shadbolt said: “When seen against a backdrop of an increasingly difficult economic climate, which has had an impact on construction, the figures in our half-yearly management accounts are extremely robust.
“We’ve already secured turnover for the year to date of £132m, and we are forecasting annual turnover of £150m, as per our business plan, with profit levels being maintained at around 5%.
“We are also experiencing unprecedented tender enquiry levels, with tenders pending award standing at just under £80m.
Group managing director Keir Edmonds added: “Looking ahead, we have a healthy order book accruing for 2020 and can see continued significant but stable growth.
“We’re also looking forward to starting a new era later this year when we move into our new headquarters in Warwick.”