Laing, Alfred McAlpine and Wilson Connolly are poised to enter the ranks of the London Stock Exchange's largest 250 companies.
Entry to the FTSE250 is based on companies' share price relative to the rest of the companies listed on the exchange. The announcement will be made at close of trading on 6 June, based on the closing price of the day before.

Peel Hunt analyst Stephen Rawlinson said the strengthening of construction sector shares this year had led to more companies pushing their way into the FTSE250. He said: "The added interest in the likes of Laing and Persimmon has definitely pushed more companies forward."

Rawlinson said if Laing, Alfred McAlpine and Wilcon's share prices stayed at their current levels, they would join the likes of Berkeley, Persimmon and Carillion in the FTSE250.

But housebuilder Redrow's destiny is less certain, with its share price hovering below the level needed for entry. Rawlinson said: "It'll be touch and go if they get in: a few falls last week have dented their chances."