On 23 September 2022, U.S. engineering firm, Tetra Tech, made an unsolicited offer to acquire U.K.-based RPS Group for US$691 million, outflanking a WSP Global’s prior, competing bid of US$641 million. WSP’s purchase offer for RPS follows a string of large acquisitions. As such, global water sector opportunities for growth are playing a role in the recent flurry of deal flow.