US claimant firms have secured two high-profile claims in the City, with Cohen Milstein Hausfeld & Toll aiming to launch a suit against a group of construction companies accused of price-fixing by the Office of Fair Trading (OFT), and Labaton Sucharow leading an action against BP.

Cohen Milstein is looking for claimants to bring an action against a number of construction companies accused by an OFT report of inflating prices on building projects.