Brookfield Multiplex topped the monthly contractor league after it won the £350m deal to build a new headquarters for Goldman Sachs.
The contractor fought off competition from Mace to win the bank’s 800,000 sq ft office complex near Holborn Viaduct in central London.
The HQ was the biggest single award recorded for the month, helping Multiplex top the contractor table, according to construction intelligence provider Glenigan.
Royal Bam was second in October after securing a £170m contract to upgrade the railway between Aberdeen and Inverness, underpinning a nine-deal £314.8m haul.
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Check out the league tables here
Other stand-out wins over the period included a £120m office job in Cambridge awarded to Bouygues, which was fifth for the month, while 12th-placed Bowmer & Kirkland took a £100m students flats deal for New Era Development.
Kier remained top of the 12-month summit, extending its lead over second-placed Bouygues.
Balfour Beatty was up two places into third for the 12 months to October, while Laing O’Rourke dropped to eighth, having been top as recently as the year to August.
Vinci also rose through the ranks, taking advantage of slip-ups elsewhere to move from ninth to fifth.
This article was amended at 2.03pm on 11 Nov to reflect the fact that Balfour Beatty has not won a £200m student accommodation scheme for University of Manchester or a £110m residential project for Northacre and DGRE